|
Aspherical parts (cylindrical, parabdic, elliptic)
Application: Lighting systems.
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Material |
BK 7, quality optical glass, fused silica |
|
Diameter |
Max Ø
200 mm
|
|
Cylindrical parts radius |
10 -
500 mm
|
|
Local error |
From 30 arc sec. to 5 arc min. |
|
Parameter error |
± 1% |
|
Slope |
Not more than 40о |
|
Focal distance tolerance |
± 7% |
|
Surface quality |
0.006-mm wide scratches of total length 2x over working aperture |
|
Cleaning |
Non-abrasive method, acetone or isopropyl alcohol on lens tissue are recommended | |
PLANAR (KBTEM)