«KBTEM-OMO»
JOINT STOCK COMPANY
 
Aspherical parts

 Aspherical parts (cylindrical, parabdic, elliptic) 

Application: Lighting systems.

 

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