Ch 9 Lens 1 Convex Lens and Concave
- Slides: 20
Ch. 9 Lens (透鏡) 1
Convex Lens (凸透鏡) and Concave Lens (凹透鏡) (a) A lens is made from _________ materials usually made of glass. Their surfaces are ________. (b) There are two types of lenses: _______ lenses (凸透鏡) and ______ lenses (凹透鏡). (c) Convex lenses are thicker in the middle than at the edge. Concave lenses are thinner in the middle. (d) When light rays pass through lens, ________ occurs. 2
Convex Lens (凸透鏡) and Concave Lens (凹透鏡) transparent (透明) materials usually (a) A lens is made from _________ curved (彎曲) made of glass. Their surfaces are ________. (b) There are two types of lenses: _______ lenses (凸透鏡) and ______ lenses (凹透鏡). (c) Convex lenses are thicker in the middle than at the edge. Concave lenses are thinner in the middle. (d) When light rays pass through lens, ________ occurs. 3
Convex Lens (凸透鏡) and Concave Lens (凹透鏡) transparent (透明) materials usually (a) A lens is made from _________ curved (彎曲) made of glass. Their surfaces are ________. (b) There are two types of lenses: convex _______ lenses (凸透鏡) concave lenses (凹透鏡). and ______ (c) Convex lenses are thicker in the middle than at the edge. Concave lenses are thinner in the middle. refraction (折射) (d) When light rays pass through lens, ________ occurs. 4
convex lenses concave lenses 5
Optical Centre (光心) and Principal Axis (主軸) 6
Optical Centre (光心) and Principal Axis (主軸) 7
Experiment (實驗) 9. 1 8
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10
Convex lens F focus (焦點) 11
Experiment (實驗) 9. 2 12
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Concave lens F focus (焦點) 15
Focus (焦點) and Focal Length (焦距) F C focal length 16
thinner lens => f is longer thicker lens => f is shorter 17
Class Exercise 9. 1 1 cm focal length = ? 18
Class Exercise 9. 1 1 cm focal length = 3 cm (2. 8 – 3. 2) 19
Homework: Assignment Book 1. Chapters 8, 9 (p. 15 -19) 2. Deadline: 2010 -11 -29 20
- Convex lens vs concave lens
- Astimatigma
- Lens sign convention
- Convex lens in water
- Fresnel lens vs convex lens
- Polygons definition
- Covex and concave
- Concave sets
- Concave and convex polygon definition
- Is flat
- Concave and convex mirror
- What is x
- How to find the height of an image in a convex mirror
- Convex and concave polygon in computer graphics
- Convex polygon examples
- Convex vs concave teeth
- Concave vs convex light refraction
- Kaltenborn traction grading scale
- Convex heptagon
- Where is the proximal radioulnar joint
- Concave vs convex polygon