University of Technology
Laser and Optoelectronics Engineering Department
Optoelectronics Engineering Branch
Optical Design Lab 2010-2011
EXP. NO. (3)
Designing a concave and convex mirrors
Exp. No (3)
Designing a concave and convex mirrors
Object:
Designing a concave mirror which has the following parameters: Aperture
value = 200mm, R.O.C. = 500mm, f= -250mm.
Glass type = mirror,
0.55
(default value), conic=-1
Designing a convex mirror which has the following parameters:
Aperture value = 200mm, R.O.C. = 500mm, f= -250mm
Glass type = mirror,
0.55
.
Equipments:
ZEMAX program which is used to design optical systems.
Procedure:
A- Designing a concave mirror:
1. Open ZEMAX program.
2. New, an LDE will be opened.
3. Click on (Gen) and enter an aperture value = 200mm click on O.K.
4. For the (STO) surface enter the following data.
R.O.C =- 500, thickness= -250, Glass = Mirror
5. Perform a 3D layout.
6. Perform a ray fan plot.
7. Perform a standard spot diagram.
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University of Technology
Laser and Optoelectronics Engineering Department
Optoelectronics Engineering Branch
Optical Design Lab 2010-2011
EXP. NO. (3)
Designing a concave and convex mirrors
8. Now for (STO) surface and for the conic column enter (-1) click on O.K.
9. Repeat steps 5 , 6 and 7
10. Designing a convex mirror is left as a homework for student.
Requirements:
1. Define the focal point and focal length for the concave and convex mirrors.
2. How does the conic factor affect the concave mirror performance.
3. For the concave mirror, the image, which is formed by it, is it real or virtual?
Explain.
4. Discuss the spot diagram for the concave mirror when the conic factor= 0
and when it (conic factor) = -1.
5. Design a plane mirror.
FIG(3-1) LDE
FIG(3-2) 3D LAY OUT
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University of Technology
Laser and Optoelectronics Engineering Department
Optoelectronics Engineering Branch
Optical Design Lab 2010-2011
EXP. NO. (3)
Designing a concave and convex mirrors
FIG(3-3) RAY FAN PLOT
FIG(3-4) SPOT DIAGRAM
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