Aspherical lenses can be used to reduce the total number of lens elements required in a lens assembly while maintaining high optical performance.
Our aspherical lenses offer advantages in the molding with high melting point glass and lower depreciation expense, both of which are necessary for rapid technological innovation. Various shapes of lenses are available including bi-convex, bi-concave and meniscus.
Specification
for Aspherical lenses:
Material: |
B270
(Nd=1.523)
;Pyrex
(Nd=1.474) |
Diameter Tolerance: |
+0.0, -0.5mm |
Thickness tolerance : |
±0.4mm |
Clear Aperture: |
>80% |
Surface Quality: |
80/50 scratch and dig |
Paraxial Focal Length: |
±5% |
|