Material:BK7,UV-grade fused silica Paraxial focal length:±5mm—±3000mm±1% Length:2mm—300mm±1% Width:2mm—200mm±1% Surface quality:60-40scratch and dig Surface Figure:λ／4,λ/2 Centration:3arc min Thickness Tolerance:±0.20mm Clear Aperture:90%[...]

Material:BK7,UV-grade fused silica Paraxial focal length:±5mm—±3000mm±1% Length:2mm—300mm±1% Width:2mm—200mm±1% Surface quality:60-40scratch and dig Surface Figure:λ／4,λ/2 Centration:3arc min Thickness Tolerance:±0.20mm Clear Aperture:90%[...]

Material:BK7,UV-grade fused silica Paraxial focal length:±5mm—±3000mm±1% Length:2mm—300mm±1% Width:2mm—200mm±1% Surface quality:60-40scratch and dig Surface Figure:λ／4,λ/2 Centration:3arc min Thickness Tolerance:±0.20mm Clear Aperture:90%[...]

Material:BK7,UV-grade fused silica Paraxial focal length:±5mm—±3000mm±1% Length:2mm—300mm±1% Width:2mm—200mm±1% Surface quality:60-40scratch and dig Surface Figure:λ／4,λ/2 Centration:3arc min Thickness Tolerance:±0.20mm Clear Aperture:90%[...]

Material:BK7,UV-grade fused silica Paraxial focal length:±5mm—±3000mm±1% Length:2mm—300mm±1% Width:2mm—200mm±1% Surface quality:60-40scratch and dig Surface Figure:λ／4,λ/2 Centration:3arc min Thickness Tolerance:±0.20mm Clear Aperture:90%[...]