![Page 1: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/1.jpg)
Open to 5.2
Can you see the buck?(not the doe)
![Page 2: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/2.jpg)
Uses of Mirrors & Lenses
What are some commercial uses of lenses? Glasses/ Contacts Projectors Cameras Microscopes Telescopes Binoculars*
![Page 3: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/3.jpg)
Camera
![Page 4: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/4.jpg)
Telescope
Clip
![Page 5: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/5.jpg)
Binoculars
![Page 6: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/6.jpg)
Projector
![Page 7: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/7.jpg)
Microscope
Clip
![Page 8: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/8.jpg)
Mirrors & Lenses
Convex
Concave
![Page 10: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/10.jpg)
Converging – light rays come together
Diverging – light rays spread out
Mirrors & Lenses
![Page 11: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/11.jpg)
Types of Images
Virtual Image right-side-up cannot be projected on a screen
Real Image upside-down can be displayed on a screen*
![Page 12: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/12.jpg)
Image formation
Distance affects the angle of view
Far away- small angle of view allows very little detail to be seen
Closer- larger angle of view creates more details to be seen
![Page 13: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/13.jpg)
Ray Diagram Setup
Principal axis- line in a lens that joins the centers of curvature of the lens surface
![Page 14: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/14.jpg)
Ray Diagram Setup
Focal point- point at which a beam of parallel light, to the principal axis, converges
![Page 15: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/15.jpg)
Ray Diagram Setup
Focal Plane- all possible points on a plane for the location of the focal point
![Page 16: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/16.jpg)
Ray Diagram Setup
Focal length- distance between center of lens and its focal point
![Page 17: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/17.jpg)
Ray Diagrams:
Copy the instructions on the next few slides and then we will look at the rules in a virtual “draw”.
![Page 18: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/18.jpg)
How to draw a mirror ray diagram:
1. parallel to the axis then go through the focal point.
2. to the center of the mirror then out at the same angle.*
![Page 19: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/19.jpg)
Let’s draw a correct ray diagram
The scope of vision looks like this in yellow.
The first blue ray goes from the top of the object – parallel to the “principal axis” and comes back at the same angle (90)
![Page 20: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/20.jpg)
Let’s draw a correct ray diagram
There is no focal point on a flat mirror.
If we are wanting to begin at the top of the ‘P’ - the angle is whatever you choose with the red arrow
![Page 21: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/21.jpg)
http://www.regentsprep.org/Regents/physics/phys09/bcraytrace/default.htm
![Page 22: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/22.jpg)
How to draw a lens ray diagram:
1. parallel to the axis then to through the focal point.
2. straight through the center of lens. *
![Page 23: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/23.jpg)
http://www.regentsprep.org/Regents/physics/phys09/bcraytrace/default.htm
![Page 24: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/24.jpg)
Let’s draw a correct ray diagram
![Page 25: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/25.jpg)
Let’s draw a correct ray diagram
![Page 26: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/26.jpg)
More practice
![Page 27: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/27.jpg)
More practice
![Page 28: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/28.jpg)
Mirror & Lens Equation
Focal length
io ddf
111
distance to imagedistance
to object
![Page 29: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/29.jpg)
![Page 30: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/30.jpg)
do = 15.5 cm
f = 15.0 cm di = ?
io ddf
111
id
1
5.15
1
15
1
15.5
1
15
1
d
1
i
cm 654d i
Example) Mr. Nelson is showing slides to his physics class, if the slides are positioned 15.5 cm from the projector lens that has a focal length of 15.0 cm, where should the screen be placed to produce the clearest image of the slide?
![Page 31: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/31.jpg)
Power of Eyeglasses
fP
1
Power – measured in diopters (1/meter)
focal length (m)*
![Page 32: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/32.jpg)
P = ?f = .30 m
fP
1
30.0
1P
diopters 33.3P
Example) Beth is farsighted, so she must wear glasses to see objects close by. If her glasses have a focal length of 0.30 m, what is their power in diopters?
![Page 33: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/33.jpg)
Image Size Magnification- image is observed
through a wider angle with the use of a lens
o
i
h
hM
Magnification
object height*
image height*
![Page 34: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/34.jpg)
Practice Problem
As you look through your binoculars at a deer out in the field, the deer appears to be 3 m tall but the deer in real life is only 1 m tall. How much magnification do your binoculars have?
![Page 35: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/35.jpg)
As you look through your binoculars at a deer out in the field, the deer appears to be 3 m tall but the deer in real life is only 1 m tall. How much magnification do your binoculars have?
o
i
h
hM
m
mM
1
3 xM 3
![Page 36: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/36.jpg)
Mirror and Lens Overview
![Page 37: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/37.jpg)
Lemony Snickets Clip
![Page 38: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/38.jpg)
Talking on a LASER Demo
![Page 39: Uses of Mirrors & Lenses What are some commercial uses of lenses? What are some commercial uses of lenses? Glasses/ Contacts Glasses/ Contacts Projectors](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649e425503460f94b3554a/html5/thumbnails/39.jpg)
http://www.andrews.edu/phys/wiki/PhysLab/doku.php?id=lab10
lab