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OPTICAL SYSTEMS Light and Optical Systems

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Page 1: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

OPTICAL SYSTEMSLight and Optical Systems

Page 2: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Objective

Students will recognize telescopes as an optical device, and understand the development of the modern telescope.

Page 3: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Getting Started

What do you think the word “optical” means?

How would you compare human eyesight to eyesight in the animal world?

What was beginning of optical systems? Name an optical system.

Page 4: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Magnifying Glass

Page 5: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Glasses

Page 6: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Telescope

Page 7: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

BenefitsSimple

DownsidesChromatic aberrationHard to make big

lensesGlass is heavy

Page 8: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Yerkes Observatory

http://www.youtube.com/watch?v=rhdxW9eJP-E
Page 9: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Discussion Questions

Can you think of any possible problems with this kind of telescope?

Page 10: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Chromatic Aberration

Page 11: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope
Page 12: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope
http://www.youtube.com/watch?v=NMGytKqB9bU
Page 13: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Essential Concept

Big glass lensesHeavyExpensive

http://www.youtube.com/watch?v=NMGytKqB9bU
Page 14: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Simple Solution

Page 15: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

An Elegant Solution

Page 16: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Keck Observatory

Page 17: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope
http://www.youtube.com/watch?v=YVJIolNFzbM
Page 18: Light and Optical Systems. Objective Students will recognize telescopes as an optical device, and understand the development of the modern telescope

Review

What does it mean when light refracts? What does it mean when light reflects? What are the limitations of refracting

telescopes? What are the benefits of the reflecting

telescope?


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