universal lightprobe sensors - optomistic products, inc. · the fiber-optic probe, and the distance...

Optomistic Products’ family of Universal LightProbe Sensors are small, highly versatile sensors and fiber-optic probes for the reliable test of LEDs - at minimum cost - meeting the needs of most component, circuit-board and finished product LED test requirements and fixture installation constraints. As the optical equivalent of in-circuit test (ICT) electrical probes, Universal LightProbe Sensors combined with a wide range of fiber-optic probes ensure the reliable and accurate test of color and intensity for almost every LED color and bright-ness. Optomistic Products’ unique patented technology reduces overall test time, and is designed to be compatible with today’s high-density fixtures. The sensors are durable and versatile, operating from +5 to +40 volts and able to withstand reverse polarity up to -18 volts. Plus, the extremely popular Trident fiber-optic probes enable the sequential test of three LEDs with a single sensor for further cost savings.

The following data sheets and selection charts provide detailed information on Optomistic Products’ eight sensor types, which can be configured with any one of our extensive range of fiber optic probes.

- Universal LightProbe Sensor Selection Chart- Universal LightProbe Penta Sensors- Universal LightProbe Penta High Sensitivity Sensors- Universal LightProbe Spectra Sensors- Universal LightProbe Spectra USB Sensors- Universal LightProbe Spectra White USB Sensors- Universal LightProbe Unicolor Sensors- Universal LightProbe Unicolor Digital Sensors- Universal LightProbe Ultra High Sensitivity Sensors- Universal LightProbe Blinx Digital Sensors- Sensor Sensitivity Selection Chart

Features• Small Sensor Size – Accommodates limited space applications of today’s fixtures• Fast Color Test – Eliminates ATE software for LED wavelength to color conversion – Reduces overall testing time per LED• Wide Range of LED Intensity Measurement – Able to measure from dim to bright, without adjustment – Low-sensitivity and high-sensitivity sensors are also available for very

bright and very dim LEDs (see Application Note 35)• Fine Fiber-Optic Probes – Optical quality stainless-steel tips accommodate very close spaced LEDs

– Interchangeable with an extensive range of fiber-optic probe and probe-tipstyles and sizes

• Wide Range of Supply Voltage – +5 volts to +40 volts for industry-wide application, ie: +5v, +13.5v

(automotive) and +24v (avionics)

Universal LightProbe™ Sensors

©2012 Optomistic Products. All rights reserved.

Universal LightProbe™ Sensors - Which Is Best For Your Test?

©2012 Optomistic Products. All rights reserved.

The chart below identifies features of each type of sensor, to assist in selecting the best sensor for each LED test application. Also refer to the fiber-optic probe selection chart to determine which fiber-optic probe is best for each LED test application.

Notes: - Very-low sensitivity sensors are also available for most sensor types. See Universal LightProbe

Application Note 35 for more information on sensor sensitivity response in millicandelas.

The information in this data sheet is intended to be a general product description. Optomistic Products reserves the right to make changes in specifications and characteristics at any time without notice. Unless specified otherwise, all dimensional values are nominal.

Data Sheet

Page 1

Universal LightProbe™ Penta Sensors

©2012 Optomistic Products. All rights reserved.U.S. PATENT

Optomistic Products’ most popular sensor, relied upon for their versatility in accommodating most LED color and intensity test applications. The Penta Sensor provides analog voltage outputs, and features built-in color binning, eliminating the need to convert LED wavelength to visual color in the ATE software, and saving valuable processing time.

Color ResponseThe Universal LightProbe Penta Sensors test for the five main LED colors, plus white, and provide an unambiguous and stable analog voltage output, independent of LED intensity, for each color: Blue: 1.0 voltsGreen: 1.5 volts Yellow/Amber: 2.0 voltsOrange: 2.5 voltsRed: 3.0 voltsWhite: 3.5 volts

Intensity Response The Universal LightProbe Penta Sensors test a wide dynamic range of LED intensity, without adjustment. The sensor provides an analog output ranging from 0 to 4 volts, corresponding to the LED’s luminous inten-sity in millicandelas (C.I.E. photopic-curve-corrected). The mcd-related output is consistent with most LED manufacturer’s specifications. A read-out of less than 50mV indicates under-ranging (LED too dim) and over 4.0 volts indicates over-ranging (LED too bright).The sensor’s intensity response depends on a variety of factors, including the size of the LED, the aperture of the fiber-optic probe, and the distance of the probe tip from the LED emitter. The Penta Sensor will test PLCC surface-mount LEDs up to 3,000 mcd. For the test of very dim LEDs, Universal LightProbe High Sensitivity Sensors are available. For the test of very bright LEDs, Universal LightProbe Penta Low-Sensitivity or Very Low Sensitivity Sensors are available. For more information on sensitivity response in millicandelas, please see Application Note 35.

Supply Voltage ProtectionUniversal LightProbe Sensors offer reliability and versatility, operating at any voltage from +5 volts to +40 volts and withstanding reverse polarity up to -18 volts without permanent damage. This provides immunity from accidental power supply wiring mistakes and from reverse polarity up to -18 volt “spikes” due to D.C. power line inductive switching transients as well as inadvertent reverse polarity “shorts” testers, while permitting their operation from different D.C. supply voltages commonly encountered in industry (ie: 5, 12, or 24 volts D.C.).

10

1

Vout(volts)

0.1

0.01

1 10 100 1000

Luminous Intensity (mcd)

Typical response for PLCC green LED tested with Universal LightProbe Penta Sensor and “Trident” Small-Aperture Fiber-Optic Probe

The information in this data sheet is intended to be a general product description. Optomistic Products reserves the right to make changes in specifications and characteristics at any time without notice. Unless specified otherwise, all dimensional values are nominal. ©2012 Optomistic Products. All rights reserved.

PO Box 751 • South Freeport, ME 04078 USA | Phone (207) 865-9181 • Fax (207) 865-9182www.optomist icproducts.com

Fiber-optic ProbesUniversal LightProbe Penta Sensors are available with a choice of Universal LightProbe Fiber-Optic Probes (see separate catalog and guide “Which is Best for Your Test”).Their stainless-steel tips range from 0.050 inches to 0.134 inches in diameter. The popular Trident enables the test of three LEDs for the cost of a single sensor. Fiber-optic probes are available for refined intensity test, for the test of dim LED’s and to compensate for misalignment errors.Custom fiber-optic cable lengths may be ordered.

Installing the Sensor and Fiber-Optic Probe UnitsInstallation is achieved with one-hole fixing, using a simple clamp for the sensor and forked clamps for the probes to allow the height of the probes above the LEDs to be adjusted. Four wire-wrap pins are provided on the sensor for D.C. power and signal connections, or use the Universal LightProbe Connector Cable for easy, error-free wiring to the ATE (see separate data sheet).

Universal LightProbe Penta Sensor Pin-Out

Four standard wire-wrap pins are used for:G – Ground, common 2-level wire-wrap pin for individual analog signal output and power input ground connectionsInt. – Intensity of LED under testColor – Color of LED under testP – DC Power input, +5 volts to +40 volts

Universal LightProbe™ Penta Sensors Data Sheet

Page 2

U.S. PATENT

Sensor CharacteristicsSensor size: 0.560 inches diameter x 1.38 inches longOperating temperature range: 0oC to 70oC Typical response time: color and intensity outputs simultaneously in less than 340mS

Power consumption: Approx. 6mA with a 5-volt supply Universal LightProbe Sensors are one of the smallest LED sensors on the market. When paired with Universal LightProbe Fiber-optic Probes they will test LEDs spaced as close as 0.050 inches on centers.

Part number: ULP PCI/V - Universal LightProbe Penta Sensor Also available: ULP PCI/V HS - Universal LightProbe Penta High Sensitivity Sensor ULP PCI/V LS - Universal LightProbe Penta Low Sensitivity Sensor ULP PCI/V VLS - Universal LightProbe Penta Very Low Sensitivity SensorSee Application Note 35 for more detail on sensor sensitivity ranges

Data Sheet

Page 1

Universal LightProbe™ Penta High Sensitivity Sensors


This “high-sensitivity” version of our most popular sensor was designed to detect very dim LEDs in the 1 mcd to 15 mcd range. The Penta High Sensitivity Sensor provides analog voltage outputs, and features built-in color binning, eliminating the need to convert LED wavelength to visual color in the ATE software, and saving valuable processing time. Best results are obtained when used with wide-aperture Universal LightProbe Fiber-Optic Probes.

Color ResponseThe Universal LightProbe Penta High Sensitivity Sensors test for the five main LED colors, plus white, and provide an unambiguous and stable analog volt-age output, independent of LED intensity, for each color:

Blue: 1.0 voltsGreen: 1.5 volts Yellow/Amber: 2.0 voltsOrange: 2.5 voltsRed: 3.0 voltsWhite: 3.5 volts

Intensity Response The Universal LightProbe Penta High Sensitivity Sensors test very dim LEDs. The sensor provides an analog output ranging from 0 to 4 volts, corre-sponding to the LED’s luminous intensity in mil-licandelas (C.I.E. photopic-curve-corrected). The mcd-related output is consistent with most LED manufacturer’s specifications, eliminating the need for any conversion. A read-out of less than 50mV indicates under-ranging (LED too dim) and over 4.0 volts indicates over-ranging (LED too bright).The sensor’s intensity response depends on a variety of factors, including the size of the LED, the aper-ture of the fiber-optic probe, and the distance of the probe tip from the LED emitter. The Penta High Sensitivity Sensor will test finished-product LED displays in the range of 1 mcd to 15 mcd. For the test of very bright LEDs, Universal LightProbe Penta Low-Sensitivity or Very Low Sensitivity Sensors are available. For more information on sensitivity response in millicandelas, please see Application Note 35.

Supply Voltage Protection and Power ConsumptionUniversal LightProbe Sensors offer reliability and versatility, operating at any voltage from +5 volts to +40 volts and withstanding reverse polarity up to -18 volts without permanent damage. This provides immunity from accidental power supply wiring mistakes and from reverse polarity up to -18 volt “spikes” due to D.C. power line inductive switching transients as well as inadvertent reverse polarity “shorts” testers, while permitting their operation from different D.C. supply voltages commonly encountered in industry (ie: 5, 12, or 24 volts D.C.).

10

1

Vout

(volts)from

the “Int.”

pin

0.1

0.10.01

1 10 100


Typical response for T-1 3/4 diffused Green LED tested with Universal LightProbe Penta High Sensitivity Sensor and Wide-Aperture Fiber-Optic Probe

0.1



Fiber-optic ProbesUniversal LightProbe Penta High Sensitivity Sensors are available with a choice of Universal LightProbe Fiber-Optic Probes (see separate catalog and guide “Which is Best for Your Test.”) For testing extremely dim LEDs, wide-aperture fiber-optic probes (with a diameter of 0.134 inches) are recommended as they allow 4x the amount of light than small aperture fiber-optic probes. This enables the test of LEDs as close as 0.134 inches on centers. Custom probe lengths may be ordered.

Installing the Sensor and Fiber-Optic Probe UnitsInstallation is achieved with one-hole fixing, using a simple clamp for the sensor and forked clamps for the probes to allow the height of the probes above the LEDs to be adjusted. Four wire-wrap pins are provided on the sensor for D.C. power and signal connections, or use the Universal LightProbe Connector Cable for easy wiring to the ATE (see separate data sheet).

Universal LightProbe Penta High Sensitivity Sensor Pin-Out

Four standard wire-wrap pins are used for:G – Ground, common 2-level wire-wrap pin for individual analog signal output and power input ground connectionsI – Intensity of LED under testC – Color of LED under testP – DC Power input, +5 volts to +40 volts

Universal LightProbe™ Penta High Sensitivty Sensors Data Sheet

Page 2

U.S. PATENT

Sensor CharacteristicsSensor size: 0.560 inches diameter x 1.38 inches longOperating temperature range: 0oC to 70oC Typical response time: color-binning and intensity outputs simultaneously in less than 1.2 seconds. (Note, the brighter the LED, the shorter the response time)Power consumption: apprx. 6mA with a 5-volt supply

Pairing the sensor with a wide-aperture fiber-optic probe enables the test of LEDs as close as 0.134 inches on center.

Part number: ULP PCI/V HS - Universal LightProbe Penta High Sensitivity Sensor Also available:ULP PCI/V: Universal LightProbe Penta Sensor ULP PCI/V LS: Universal LightProbe Penta Low Sensitivity Sensor ULP PCI/V VLS: Universal LightProbe Penta Very Low Sensitivity Sensor See Application Note 35 for more detail on sensor sensitivity ranges

Data Sheet

Page 1

Universal LightProbe™ Spectra Sensors


Universal LightProbe Spectra Sensors test a wide range of LED intensity, and of any LED color in the visual spectrum, plus white. Universal LightProbe Spectra Sensors are well-suited for the test of “boundary” color LEDs, as they allow the user to set their own PASS/FAIL limits for color.

Color ResponseUniversal LightProbe Spectra Sensors test any LED color wavelength in the visual band (400-700nm) and also white, by providing a voltage output proportional to LED wavelength. The user is able to set their own PASS/FAIL limits for any color wavelength. For colors, the formula is: LED Wavelength = [100( Vout +4)nm]For white, the voltage output is 3.5volts. By providing a voltage output, the need to convert LED wavelength as a pulse rate is eliminated, effectively improving the overall response time to test an LED. The Spectra Sensor provides an unambiguous and stable analog voltage output, independent of LED intensity.

Intensity Response The Universal LightProbe Spectra Sensors test a wide dynamic range of intensity, without adjustment. The sensor provides an analog output ranging from 0 to 4 volts, corresponding to the LED’s luminous intensity in millicandelas (C.I.E. photopic-curve-cor-rected). The mcd-related output is consistent with most LED manufacturer’s specifications. A read-out of less than 50mV indicates under-ranging (LED too dim) and over 4.0 volts indicates over-ranging (LED too bright).The sensor’s intensity response depends on a variety of factors, including the size of the LED, the aperture of the fiber-optic probe, and the distance of the probe tip from the LED emitter. The Spectra Sensor will test surface-mount LEDs up to 3,000 mcd’s. For the test of very bright LEDs, Spectra Sensors Low Sensitivity and Very Low Sensitivity Sensors are also available. For more information on sensitivity response in millicandelas, please see Application Note 35.

Operating Voltage ProtectionUniversal LightProbe Sensors offer reliability and versatility, operating at any voltage from +5 volts to +40 volts and withstanding reverse polarity up to -18 volts without permanent damage. This provides immunity from accidental power supply wiring mistakes and from reverse polarity up to -18 volt “spikes” due to D.C. power line inductive switching transients as well as inadvertent reverse polarity “shorts” testers, while permitting their operation from different D.C. supply voltages commonly encountered in industry (ie: 5, 12, or 24 volts D.C.).

10

1

Vout(volts)

0.1

0.01

1 10 100 1000


Typical response for PLCC green LED tested with Universal LightProbe Spectra Sensor and “Trident” Small-Aperture Fiber-Optic Probe



Fiber-optic ProbesUniversal LightProbe Spectra Sensors are available with a choice of Universal LightProbe Fiber-Optic Probes (see separate catalog and guide “Which is Best for Your Test.”) Fiber-optic probes range from 0.050 inches to 0.134 inches in diameter and from 0.325 to 2.340 inches in length. The popular “Skinny” Trident enables the test of three LEDs for the cost of a single sensor. Choose specific fiber-optic probes for refined intensity testing, to test dim LED’s, or to compensate for misalignment errors, and more. Custom probe lengths may be ordered.

Installing the Sensor and Fiber-Optic Probe UnitsInstallation is achieved with one-hole fixing, using a simple clamp for the sensor and forked clamps for the probes to allow the height of the probes above the LEDs to be adjusted. Four wire-wrap pins are provided on the sensor for D.C. power and signal connections, or use the Universal LightProbe Connector Cable for easy wiring to the ATE (see separate data sheet).

Universal LightProbe Spectra Sensor Pin-Out

Four standard wire-wrap pins are used for:G – Ground, common 2-level wire-wrap pin for individual analog signal output and power input ground connectionsI – Intensity of LED under testC – Color of LED under testP – DC Power input, +5 volts to +40 volts

Universal LightProbe™ Spectra Sensors Data Sheet

Page 2

U.S. PATENT

Sensor CharacteristicsSensor size: 0.560 inches diameter x 1.38 inches longOperating temperature range: 0oC to 70oC Typical response time: color and intensity outputs simultaneously in less than 450mSPower Consumption: Approx. 6mA with a 5-volt supply

Universal LightProbe Sensors are one of the smallest LED sensors on the market. When paired with Universal LightProbe Fiber-optic Probes they will test LEDs spaced as close as 0.050 inches on centers.

Part numbers: ULP WBI/V: Universal LightProbe Spectra SensorAlso available: ULP WBI/V LS: Universal LightProbe Spectra Low Sensitivity Sensor ULP WBI/V VLS: Universal LightProbe Spectra Very Low SensitivitySee Application Note 35 for more detail on sensor sensitivity ranges

Data Sheet

Page 1

Universal LightProbe™ Spectra USB Sensors


Universal LightProbe Spectra USB Sensors test a wide range of LED intensities and any color in the visual spectrum, plus white. They provide a digital USB output for direct connection to a PC USB port.

Color ResponseThe Universal LightProbe Spectra USB Sensors’ ASCII-formatted digital output of LED color can be displayed/printed-out using either Windows® HyperTerminal com-munications software, which is included with Windows versions up to Windows 2000; or with TeraTerm software, provided by Optomistic Products. The color output is independent of LED intensity. Figure 1 shows a Windows® HyperTerminal readout for a single LED under test, and Figure 2 shows a Windows® HyperTerminal readout of four LEDs under test simultaneously, using four Spectra USB Sensors and a four-port hub connected to the PC USB port, where w = color wavelength in tenths of nano-meters. (For further detail on the multi-port display, see Application Note 37.)

Intensity Response The Universal LightProbe Spectra USB Sensors test a wide dynamic range of LED intensity, without adjustment. The sensor provides a digital output, where i = intensity, ranging from 0 to 65,0000 (see Figures 1 and 2.) Fig-ure 3 shows the corresponding LED luminous intensity in millicandelas (C.I.E. photopic-curve-corrected). The mcd-related scale is consistent with most LED manufac-turer’s specifications. An intensity read-out of 4 indicates under-ranging (LED too dim) and over 65,000 indicates over-ranging (LED too bright).The sensor’s intensity response depends on a variety of factors, including the size of the LED, the aperture of the fiber-optic probe, and the distance of the probe tip from the LED emitter. The Spectra USB Sensor will test surface-mount LEDs up to 3,000 mcd’s. For the test of very bright LEDs, Universal LightProbe Spectra USB Low-Sensitivity and Very Low Sensitivity Sensors are available. For more information on sensitivity response in millicandelas, please see Applica-tion Note 35. For the test of shades of white LEDs, please see the Spectra White USB Sensor data sheet.

Figure 2: Typical response for four LEDs (red, yellow, green and blue) tested simultaneously, where “w” = wavelength in tenths of nanometers and “i” = intensity.

Figure 1: Typical response for a green LED, where “w” = wavelength in tenths of nanometers and “i” = intensity.

Reduces Overall Testing TimeUniversal LightProbe Spectra USB Sensors’ unique streaming technology enables LED color wavelength and intensity to be rapidly accessed by a PC and displayed/printed-out, which reduces test time and provides continuous automatic data logging for statistical process control (SPC).

Figure 3: Graph shows typical intensity response for PLCC green LED tested with Universal LightProbe Spectra USB Sensor and Small-Aperture Fiber-Optic Probe

“I”

values

103




Fiber-optic ProbesUniversal LightProbe Fiber-Optic Probes range from 0.050 to 0.134 inches in diameter and from 0.325 to 2.340 inches in length. When using a 4-port hub, up to 4 LEDs can be tested simultaneously. Choose specific fiber-optic probes for refined intensity testing, for dim LED’s, or to compen-sate for misalignment errors, and more. Custom probe lengths may be ordered.

Installing the Sensor and Fiber-Optic Probe UnitsInstallation is achieved with one-hole fixing, using a simple clamp for the sensor and forked clamps for the probes to allow the height of the probes above the LEDs to be adjusted.

Universal LightProbe Spectra USB Sensor A standard mini-type B five-pin USB connector is integrat-ed into the Universal LightProbe Spectra USB Sensor, and a standard USB Cable is provided to connect the sensor to a PC. Compabatible with Windows operating systems from Windows XP through Windows 7, using Windows HyperTerminal (which is included in Windows XP, 2000 and Vista) or TeraTerm software, which is included.

Universal LightProbe™ Spectra USB Sensors Data Sheet

Page 2

U.S. PATENT

Part numbers: ULP Spectra USB: Universal LightProbe Spectra USB Sensor - includes USB Cable, TeraTerm Software and Driver Software (note Windows HyperTerminal Software included with Windows).Also available: ULP Spectra USB LS: Universal LightProbe Spectra USB Low Sensitivity Sensor ULP Spectra USB VLS: Universal LightProbe Spectra USB Very Low Sensitivity SensorSee Application Note 35 for more detail on sensor sensitivity ranges

Sensor CharacteristicsSensor size: 0.560 inches diameter x 1.38 inches long (USB connector extends 0.06 inches at back of sensor)Operating temperature range: 0oC to 70oC Typical response time: color and intensity outputs simultaneously in less than 250mS

Universal LightProbe Sensors are one of the smallest LED sensors on the market. When paired with Universal LightProbe Fiber-optic Probes they will test LEDs spaced as close as 0.050 inches on centers.

Data Sheet

Page 1

Universal LightProbe™ Spectra White USB Sensors


Universal LightProbe Spectra White USB Sensors are designed to test different “shades” of white LEDs.The human eye can detect differences in shades of white which may not be acceptable in products under test. Although white LEDs are usually received in bulk packaging (1,000-piece reel or bags) with the same “color”-bin code, these white LEDs can vary in shade.

Color ResponseThe Universal LightProbe Spectra White ASCII Sensor coupled with the programmed USB Interface Cable, provides a readout of a single number which is unique to a specific white LED’s CCT (Correlated Color Temperature) and is unaffected by the intensity of the LED. This enables limits to be set for accepting or rejecting shades of white LEDs which may be un-acceptable to visual inspection. When testing white LEDs, the “w” readout of the Universal LightProbe Spectra White USB Sensor (using Windows® HyperTerminal or Tera Term software) provides a single number, between 5,000 and 18,000 that corresponds to the CCT values / shades of white, as shown in the table and screen-capture on the left.

Intensity Response Universal LightProbe Spectra White USB Sensors provide an exceptional linear sensitivity range. The sensor provides a digital output, where i = intensity, ranging from 0 to 65,0000 (see Figures 1 and 2). The mcd scale is consistent with most LED manufacturer’s specifications. An intensity read-out of 4 indicates under-ranging (LED too dim) and over 65,000 indicates over-ranging (LED too bright). The sensor’s intensity response depends on a variety of factors, including the size of the LED, the aperture of the fiber-optic probe, and the distance of the probe tip from the LED emitter. The Universal LightProbe Spectra White USB Sensor will test LEDs up to 30,000 mcd (30 cd) to accommo-date the full range of ultra-bright white LEDs, without adjustment.

Figure 2: Windows HyperTerminal read-out for a “warm” white LED where “w” = 5828 and “i” = 1,333

Shade of White

CCT 0K “W”Readout

Warm 2,500 - 3,500

5,000 series

Neutral 3,500 - 4,500

19,000 series

Cool 4,500 - 8,500

17,000 -18,000 series

Very Cool

10,000 - 20,000

16,000 series

Figure 1: CCT and Corresponding “W” Readout

Reduces Overall Testing TimeUniversal LightProbe Spectra White USB Sensors’ unique streaming technology enables LED color wavelength and intensity to be rapidly accessed by a PC and displayed/printed-out with Windows® HyperTerminal or Tera Term software, which reduces test time and provides continuous automatic data logging for statistical process control (SPC).



Fiber-optic ProbesUniversal LightProbe Spectra White USB Sensors are available with a choice of Universal LightProbe Fiber-Optic Probes (see separate catalog and guide “Which is Best for Your Test.”) Fiber-optic probes range from 0.050 inches to 0.134 inches in diameter and from 0.325 to 2.340 inches in length. When using a 4-port hub, up to 4 LEDs can be tested simultaneously. Choose specific fiber-optic probes for refined intensity testing, to test dim LED’s, or to com-pensate for misalignment errors, and more. Custom probe lengths may be ordered.

Installing the Sensor and Fiber-Optic Probe UnitsInstallation is achieved with one-hole fixing, using a simple clamp for the sensor and forked clamps for the probes to allow the height of the probes above the LEDs to be adjusted.

Universal LightProbe Spectra USB Sensor A standard mini-type B five-pin USB connector is inte-grated into the Universal LightProbe Spectra USB Sensor, and a standard USB Cable is provided to connect the sen-sor to a PC. Compatible with Windows operating systems from Windows XP through Windows 7, using Windows® HyperTerminal (which is included with Windows XP, 2000 and Vista) or TeraTerm software, which is included with the Universal LightProbe Spectra Sensor.

Universal LightProbe™ Spectra White USB Sensors Data Sheet

Page 2

U.S. PATENT

Sensor CharacteristicsSensor size: 0.560 inches diameter x 1.38 inches long Note: USB connector extends 0.06 inches at back of sensorOperating temperature range: 0oC to 70oC Typical response time: color and intensity outputs simultaneously in less than 350mS.

Part numbers: ULP WBI White USB: Universal LightProbe Spectra White USB Sensor

Data Sheet

Page 1

Universal LightProbe™ Unicolor Sensors


Universal LightProbe Unicolor Sensors are designed for the color and intensity test of any single one of the five main LED colors (blue, green, yellow, orange, and red) plus white and Infrared (700nm to 1,000nm).

Color ResponseUniversal LightProbe Unicolor Sensors check the LED color by providing a voltage output proportional to LED intensity only if the LED is the color specified for the Unicolor Sensor, e.g., blue, green, yellow/amber, orange, red or white, or Infrared. The Unicolor Sensor provides a single analog output, ranging from 0 to 4 volts, that corresponds to the LED intensity, only if the correct color is detected and the sensor will be insensitive to the wrong color, regardless of the intensity of the wrong color LED.

Intensity Response The Universal LightProbe Unicolor Sensors test a wide range of LED intensity, without adjustment. The sensor provides an analog output ranging from 0 to 4 volts, corresponding to the LED’s luminous intensity in millicandelas (C.I.E. photopic-curve-corrected). The mcd-related output is consistent with most LED manufacturer’s specifications. A read-out of less than 50mV indicates under-ranging (LED too dim) and over 4.0 volts indicates over-ranging (LED too bright).The sensor’s intensity response depends on a variety of factors, including the size of the LED, the aperture of the fiber-optic probe, and the distance of the probe tip from the LED emitter. The Unicolor Sensor will test surface-mount LEDs up to 3,000 mcd. For the test of very bright LEDs, Universal LightProbe Unicolor Low-Sensitivity or Very Low-Sensitivity Sensors are also available. For more information on sensitivity response in millicandelas, please see Application Note 35.


10

1

Vout(volts)

0.1

0.01

1 10 100 1000Luminous Intensity (mcd)

Typical response for PLCC green LED tested with Universal LightProbe

Unicolor Sensor and “Trident” Small-Aperture Fiber-Optic Probe



Installing the Sensor and Fiber-Optic Probe UnitsInstallation is achieved with one-hole fixing, using a simple clamp for the sensor and forked clamps for the probes to allow the height of the probes above the LEDs to be adjusted. Three wire-wrap pins are provided on the sensor for D.C. power and signal connections, or use the Universal LightProbe Connector Cable for easy wiring to the ATE (see separate data sheet).

Universal LightProbe Unicolor Sensor Pin-Out Three standard wire-wrap pins are used for:

G – Ground: common 2-level wire-wrap pin for individualanalog signal output and power input ground connections

I – Intensity of correct color LED under testP – DC Power input, +5 volts to +40 volts

Universal LightProbes™ Unicolor Sensors Data Sheet

Page 2

U.S. PATENT

Part numbers: ULP SCI/V - Universal LightProbe Unicolor SensorAlso available: ULP SCI/V LS - Universal LightProbe Unicolor Low Sensitivity Sensor ULP SCI/V VLS - Universal LightProbe Unicolor Very Low Sensitivity SensorSee Application Note 35 for more detail on sensor sensitivity ranges

Fiber-optic ProbesUniversal LightProbe Unicolor Sensors are available with a choice of Universal LightProbe Fiber-Optic Probes (see separate catalog and guide “Which is Best for Your Test.”) Fiber-optic probes range from 0.050 to 0.134 inches in diameter and from 0.325 to 2.340 inches in length. The popular “Skinny” Trident enables the test of three LEDs for the cost of a single sensor. Choose specific fiber-optic probes for refined intensity testing, to test dim LED’s, or to compensate for misalignment errors, and more. Custom probe lengths are available.

Sensor CharacteristicsSensor size: 0.560 inches diameter x 1.38 inches longOperating temperature range: 0oC to 70oC Typical response time: 315mS or less Power consumption: Approx. 6mA with a 5-volt supply

Universal LightProbe sensors are one of the smallest LED sensors on the market and when paired with Universal LightProbe Fiber-optic Probes they test LEDs spaced as close as 0.050 inches on center.

Data Sheet

Page 1

Universal LightProbe™ Unicolor Digital Sensors


Universal LightProbes Unicolor Digital Sensors are designed for the simple on/off test and color check of a single color LED, with a digital output, quickly determining PASS/FAIL status without further processing by the ATE.

Color ResponseThe Universal LightProbe Unicolor Digital Sensor tests the target LED’s color by providing a Logic “1” voltage output (5 volts)only if the LED is the color specified for the Unicolor Digital Sensor, e.g., blue, green, yellow, orange, red or white. The sensor will be insensitive to the wrong color, with a Logic “0” output (0 volts). The sensor provides opti-mum ATE/ICT Pin Board/memory interface for fast digital burst mode LED test.

Intensity The Universal LightProbe Unicolor Digital Sensors do not provide an output proportional to LED intensity, however, when detecting the correct color, they will respond to a wide dynamic range of LED intensity, from dim to bright LEDs, without the need for adjustment. For extremely dim LEDs, the Universal LightProbe Ultra-High Sensitivity Sensor is available. For more information on sensitivity response in millicandelas, please see Application Note 35.

Operating Voltage ProtectionUniversal LightProbe Sensors offer reliability and versatility, operating at any voltage from +5 volts to +40 volts and withstanding reverse polarity up to -18 volts without permanent damage. This provides immunity from accidental power supply wiring mistakes and from reverse polarity up to -18 volt “spikes” due to D.C. power line inductive switching transients as well as inadver-tent reverse polarity “shorts” testers, while permitting their operation from different D.C. supply voltages commonly encountered in industry.



Fiber-optic ProbesUniversal LightProbe Unicolor Digital Sensors are avail-able with a choice of Universal LightProbe Fiber-Optic Probes (see separate catalog and guide “Which is Best for Your Test.”) Fiber-optic probes range from 0.050 to 0.134 inches in diameter and from 0.325 to 2.340 inches in length. The popular “Skinny” Trident enables the test of three LEDs for the cost of a single sensor. Choose spe-cific fiber-optic probes for refined intensity testing, to test dim LED’s, or to compensate for misalignment errors, and more. Custom probe lengths are available.


Universal LightProbe Unicolor Digital Sensor Pin-Out Three standard wire-wrap pins are used for:G – Ground: common 2-level wire-wrap pin for individual

analog signal output and power input ground connections

C – Color of LED under test: +5 volts (logic “1”) right color,0 volts (logic “0”) wrong color or off

P – DC Power input, +5 volts to +40 volts

Universal LightProbes™ Unicolor Digital Sensors Data Sheet

Page 2

U.S. PATENT

Sensor CharacteristicsSensor size: 0.560 inches diameter x 1.38 inches longOperating temperature range: 0oC to 70oC Typical response time: less than 325mSPower consumption: Approx. 6mA with a 5-volt supply


Order InformationPart No: ULP-SCC/”X”: Universal LightProbe Unicolor Digital Sensor

Replace “X” with B, G, Y, O, R, or W to indicate the color of the LED under test Add required fiber-optic probe type part number to specify complete part number for the sensor and probe.

Data Sheet

Page 1

Universal LightProbe™ Blinx Digital Sensors


Universal LightProbes Blinx Digital Sensors are fast-response time sensors, designed for the simple “on”/”off” test of any color blinking/pulsed or stable LED, for fast results with a digital output.

ON/OFF ResponseThe Universal LightProbe Blinx Digital Sensors check the on/off status of any color LED, whether stable or blinking/pulsed, up to a rate of 15 Hz. Universal LightProbe Blinx Digital Sensors check the LED by providing a Logic “1” output only if the LED is “on” and a Logic “0” if the LED is “off.” The Universal LightProbe Blinx Digital Sensor are “color-blind” and can therefore check the ON/OFF status of any color LED. Applications include the test of modem indicators, RJ45 connector LEDs, process control flow-rate monitor LEDs and blink-ing or flashing alarm indicators. This provides the simplest and fastest 1-bit digital interface to automatic test equipment.

Intensity The Universal LightProbe Blinx Digital Sensors do not provide an intensity response proportional to LED intensity, however, they will test on/off status for a wide dynamic range of LED intensity, without the need for adjustment. The Universal LightProbe Blinx Digital Sensor will test surface-mount LEDs of 3 mcd minimum, and the Universal LightProbe Blinx Digital High-Sensitivity Sensor will test 0.5 mcd LEDs minimum, up to 5Hz blinking rates. For more information on sensitivity response, please see Application Note 35.

Operating Voltage Protection and Power ConsumptionUniversal LightProbe Sensors offer reliability and versatility, operating at any voltage from +5 volts to +40 volts and withstanding reverse polarity up to -18 volts without permanent damage. This provides immunity from accidental power supply wiring mistakes and from reverse polarity up to -18 volt “spikes” due to D.C. power line inductive switching transients as well as inadver-tent reverse polarity “shorts” testers, while permitting their operation from different D.C. supply voltages commonly encountered in industry.



Fiber-optic ProbesUniversal LightProbe Blinx Digital Sensors are available with a choice of Universal LightProbe Fiber-Optic Probes (see separate catalog and guide “Which is Best for Your Test.”) Fiber-optic probes range from 0.050 to 0.134 inches in diameter and from 0.325 to 2.340 inches in length. The popular “Skinny” Trident enables the test of three LEDs for the cost of a single sensor. Choose specific fiber-optic probes for refined intensity testing, to test dim LED’s, or to compensate for misalignment errors, and more. Custom probe lengths are available.


Universal LightProbe Blinx Digital Sensor Pin-Out Three standard wire-wrap pins are used for:

G – Ground: common 2-level wire-wrap pin for individualsignal output and power input ground connections

S – Status of LED under test, +5 volts (logic “1”) for LED“on,” 0 volts (logic “0”) for LED off

P – DC Power input, +5 volts to +40 volts

Universal LightProbes™ Blinx Digital Sensors Data Sheet

Page 2

U.S. PATENT

Sensor CharacteristicsSensor size: 0.560 inches diameter x 1.38 inches longOperating temperature range: 0oC to 70oC Typical response time: Less than 33mS for LEDs blink-ing at 15Hz. Less than 28mS for steady state LEDs.Power consumption: apprx. 6mA with a 5-volt supply.


Part numbers: ULP Blinx: Universal LightProbe Blinx Digital SensorAlso available: ULP Blinx HS: Universal LightProbe Blinx Digital High Sensitivity Sensor See Applicatin Note 35 for more detail on sensor sensitivity ranges

IntensityThe Universal LightProbe Ultra High Sensitivity Sensors were developed to test extremely low light-level LEDs (to 0.18 mcd minimum) as used in automobile interior switches, controls and status indicators, which are invisible in daylight and factory light-ing conditions. For more information on sensitivity response in millicandelas, please see Application Note 35.. Reduces Overall Testing TimeUniversal LightProbe Ultra High Sensitivity Sensors’ unique technology provides a logic “1” output (5 volts) if the LED is “ON” or logic “0” if the LED is “OFF.” This provides the simplest and fastest 1-bit digital interface to automatic test equipment, requiring no further PASS/FAIL processing by the ATE software.

Data Sheet

Page 1

Universal LightProbe™ Ultra High Sensitivity Sensors


Designed for the test of very dim LEDs, as low as 0.18 mcd minimum, and including very low light-level LED-illuminated action-indicator switches, controls and status indicators for night/dark viewing in automobile interiors.

ON/OFF ResponseThe Universal LightProbe Ultra High Sensitivity Sensors are “color-blind.” The sensors the test of any color LED, providing a Logic “1” output (5 volts) only if the LED is “ON”, and Logic “0” if the LED is “OFF”. The sensors will detect the ON/OFF status of very dim LEDs, and are able to accurately and reliably determine whether an LED is actually illuminated even though it may only be visible in complete darkness.



©2012 Optomistic Products. All rights reserved


Universal LightProbeTM Connector Cable

Data Sheet

For sensor wiring to ATE interface.

Features• Fool-proof Sensor Wiring – Color-coded and labeled wires, corresponding to sensor pin labelling, with separate sheathing of individual

sensor wires for easy identification at the ATE interface.• Time-Saving – Provides a quick-change of sensors, saving time over either wire-wrap or soldered connections.• Reduces Overall Fixture Assembly Cost – Eliminates costly wiring errors and de-bug time. – Provides automatic dressing of specific sensor wires. – Eliminates disorganized “bird’s nest” wiring.• Protects Sensor from Heat Damage – Eliminates the possibility of sensor damage caused by excessive heat when soldering connections.• Long, Durable, Flexible and Tested – Long-length (48 inches/1220mm) allows for trimming to suit most fixtures – 26 AWG stranded conductors for flexibility and durability – End-to-end continuity tested and pull tested

Order InformationPart No: ULP-CC Universal LightProbe Connector Cable

Universal LightProbe™ Sensor Sensitivity SelectionOptomistic Products offers a selection of Universal LightProbes sensors for testing various intensity LED’s. Testing a very bright LED, for example, might require a “Low Sensitivity” (LS) sensor, to ensure that the sensor does not “over-range,” and testing a dim LED might require a “High-sensitivity” (HS) sensor to detect the LED. Which sensor should be selected is determined by various factors, including the size of LED un-der test, the type of Universal LightProbe Fiber-optic Probe being used for the test, the air-gap between the fiber-optic probe tip and the LED under test, or even if the LED is being tested through translucent material of unknown transmission characteristics. The chart below serves as a guide to determine which sensor and fiber-optic probe is best for your specific test application, by giving the approximate sensitivity ranges. To determine the intensity of the LED under test, check the LED manufacturer’s data sheet for luminous intensity in millicandelas for a specific forward current.

©2012 Optomistic Products. All rights reserved.rev. 05/14/ 2012

ULP Application Note 35



universal lightprobe sensors - optomistic products, inc. · the fiber-optic probe, and the distance...

Documents