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Images Formed by Lenses

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Presentation on theme: "Images Formed by Lenses"— Presentation transcript:

1 Images Formed by Lenses
Diverging

2 Review - Lens Terminology
The principal focus is on the SAME side as the incident rays

3 Three Key Rays: 1. Light rays that go in parallel to the PA
F 2F F’ 2F’ 1. Light rays that go in parallel to the PA refract as though they came from F.

4 Three Key Rays: 2. Light rays that go towards F’
refract parallel to the PA

5 Three Key Rays: 3. Light rays that go in through O don’t refract F 2F

6 Finding Images smaller Size: _____________ Attitude: ____________
The refracted rays diverge so we have to F 2F F’ 2F’ extend the rays back image smaller Size: _____________ Attitude: ____________ Location: _________ Type: _______________ upright closer virtual

7 Finding Images Same as before smaller
Size: _____________ Attitude: ____________ Location: _________ Type: _______________ upright closer virtual

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