Cylindrical lenses can transform a point image into a line image or changing the height of an image without changing its width or vice versa. it is useful for making laser line generators.
Item
Specifications
Material
N-BK7（H-K9L) or other
optical glass
Dimension tolerance
+0.0/-0.2mm
Center thickness tolerance
±0.2mm
Surface quality
60/40
Surface figures(@633nm)
N＜3
Irregular distortion (@633nm)
N＜0.5
Centration
<3min
Focus length tolerance
±2%
Clear aperture
85%
Bevel(face width×45°)
Protected chamfer