Date: October 5, 2019

Topic: Lenses

Recall

Focal Length(f)

Gaussian Lens Law

Notes

• Lenses has same projection as pinhole, but gather more light.

• FL determines the lens' bending power

• ...

  

  

Image Magnification with Lenses

• Zomming: Move lenses to change magnification

  

  

Aperture of Lens

Len Defocus

• lens diameter

• used to control image brightness

• Represent aperture as a fraction of focal length

  

• Blur Circle

  

  

Focusing

Move lens or image plane

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