Optical Flat

We are offering optical flats
place of origin:changchun china (mainland) brand name:kexing model number:
diameter:20mm thickness:3mm surface flatness:≤lambda/4
parallelism:≤30" material:bk7 surface quality:40-20/20-10/10-5
specifications
1 optical window2 diameter:20mm3 thickness:3mm; antireflection coating:uncoated4 surface quality:40-20/20-10/10-5
the oqopw20-c parallel window is parallel to less than 30 arc sec for minimal transmitted beam deviation. This 20mm diameter bk 7 window is 3 mm thick.for demanding applications, such as intracavity laser applications, holography, and multiphoton imaging, this window has a λ/4surface flatness and 40-20 scratch-dig significantly reducing unwanted scatter.
product number diameter(mm) thickness(mm) surface flatness parallelism material
oqopw12.7-c φ12.7 2 λ/4 ≤30“ bk7
oqopw20-c φ20 3 λ/4 ≤30” bk7
oqopw25.4-c φ25.4 3 λ/4 ≤30“ bk7
oqopw50-c φ50 5 λ/4 ≤30” bk7
oqopw50.8-c φ50.8 5 λ/4 ≤30“ bk7
oqopwq12.7-c φ12.7 2 λ/4 ≤30” fused silica
oqopwq20-c φ20 3 λ/4 ≤30“ fused silica
oqopwq25.4-c φ25.4 3 λ/4 ≤30“ fused silica
oqopwq50-c φ50 5 λ/4 ≤30” fused silica
oqopwq50.8-c φ50.8 5 λ/4 ≤30“ fused silica