Description
Material BK7 or UV Fused Silica
Dimension Tolerance +0/-0.2mm
Thickness Tolerance ±0.2mm
Design Wavelength 546.1nm
Surface Quality 60/40 scratch and dig
Flatness λ/4@632.8nm
Centration <3 arc minutes
Focal Length Tolerance ±2%
Clear Aperture >90%
Chamfer Protective <0.5mmx45deg
Double Concave Spherical Lens
Specifications
| Material: | BK7, FS, UVFS, H-K9L |
|---|---|
| Diameter: | 25.4 mm |
| Focal Length: | -100 mm |
| Edge Thickness, Te: | 2 mm |
| Lens Type: | Bi-Concave |
Download Data Sheet
Frequently Asked Questions
What is the material used for the Double Concave Spherical Lens?
The material used for the Double Concave Spherical Lens is either BK7 or UV Fused Silica.
What is the surface quality of the lens?
The surface quality of the lens is 60/40 scratch and dig.
What is the dimension tolerance of the lens?
The dimension tolerance of the lens is +0/-0.2mm.
What is the focal length tolerance of the lens?
The focal length tolerance of the lens is ±2%.
What is the clear aperture of the lens?
The clear aperture of the lens is >90%.
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