china star optics technology co., ltd

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1. Optical achromatic lens(cemented doublets)

Specification of our achromatic lens as follow:
*Material:BK7 and ZF2(or according to your request)
*Dia.:+0/-0.05
*Center thickness tolerance:+/-0.1
*Surface quality: 60-40
*Surface figure:0.5-0.2
*Centration < 3arc min
*Chamfer:0.1-0.25*4 ...

2. Optical BK7 glass Wedge prism from China

Wedge prism,dove prism,right angle prism,pyramid prism,dispersing prism etc..
Specification of our wedge prism as follow:
*Material:BK7 or(JGS1 JGS2 JGS3)
*Glass Qualityz:nd+/-0.001~+/-0.0001
vd +/-0.8%~+/-0.1%
*Dimension ...

3. 67mm 2.0X telephoto conversion lens used on camera

Specification of our telephoto lens as follow:
*25mm,27mm,28mm,30mm,30.5mm,34mm,37mm,43mm,46mm,49mm,52mm,55mm,58mm,62mm,72mm 2.0X telephoto lens;
*37mm 2.5X and 3.0X telephoto lens;
*52mm 3.0X telephoto lens;

4. optical BK7 glass square and ground windows from China

Specification of our optical window as follow:
*Material: Bk7 or other materials
*Length tolerance:+/-0.01
*Width tolerance:+/-0.01
*Center thickness tolerance:0.005mm
*Surface quality:80-50~10-5
*Surface flatness<lambda~lambda/20
*Parallel ...

5. Optical BK7 glass bi-concave cylindrical lens from China

Specification of our cylindrical lens as follow:
*Material BK7 or other optical materials
*Dimension Tolerance +0.0~-0.1mm
*Center Thickness +/-0.1mm
*Focal Length Tolerance+/-1%
*Surface Quality:60/40
*Surface Figure lambda/2 at 633nm ...