*Material:BK7?or other materials *Focal?length: /-1% *Length?tolerance: 0.0 ~ -0.1mm *Width?tolerance: 0.0 ~ -0.1mm *Center?thickness?tolerance: /-0.1mm *Surface?Figure:lambda/2 at 633nm on plano side *Surface?quality:60-40?stratch/dig *Clear?... - Update: 2013-05-17

Achromatic Lens is an achromatic consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. Specification of our achromatic lens as follow: *Material:BK7 and ZF2(or according to your reque... - Update: 2013-05-17

*Material BK7 or other optical materials *Dimension Tolerance 0.0~-0.1mm *Center Thickness /-0.1mm *Focal Length Tolerance /-1% *Surface Quality:20/10 *Surface Figure ?/2 at 633nm on plano side *Clear Aperture >90% *Chamfer 0.25mm at 45... - Update: 2013-05-17

Specification material:bk7(k9) size:20*20~30*30mm *Dimension Tolerance: /-0.20mm to 0.01/-0.01mm *ThicknessTolerance: /-0.20mmto /-0.005mm *Surface Quality:80-50 to 10-5 *Flatness: at 633nm lambda -- lambda/20per 25mm *Clear Aperture:80... - Update: 2013-05-17

Holographic gratings: Specifications: Ruled area: 70% Ruled gratings: Specifications: Ruled area: 70% Concave gratings: Specifications: Ruled area: 70% - Update: 2013-05-17

*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 on plano side *Clear Aperture >90% *Chamfer 0.25mm ... - Update: 2013-05-10

Specification of our optical windows as follow: *Material: BK7 or other materials *Length tolerance: /-0.01 *Width tolerance: /-0.01 *Center thickness tolerance:0.005mm *Surface quality:80-50 to 10-5 Scratch/Dig - Update: 2013-04-11

Nd: doping 0.1%,0.2%,0.27%,0.5%,1%,2%,3%,5% Dimension tolerance: /-0.1mm Flatness:? /8 @633nm Surface quality: Scratch/Dig 10/5 Parallelism: better than 20 arc sec. Perpendicularity: better than 15 arc min Angle tolerance: < 0.5degree ... - Update: 2013-04-11

Plano-convex cylindrical lens,plano-concave cylindrical lens,bi-convex cylindrical lens,bi-concave cylindrical lens,meniscus cylindrical lens,long cylindrical lens,special cylindrical lens etc.. Specifiction of our cylinderical lens as follow: *Mat... - Update: 2013-04-11