We supply our customers with bi-concave spherical lenses, anti-reflection coatings, custom substrate materials, dimensions and focal lengths upon request. A biconcave spherical lens has two spherical concave surfaces with the same radius of curvature, and their focal length is negative.
Request bulk or custom formats
Catalog Number
ACMA00028391
Product Name
Bi-Concave Spherical BK7 Lense, -100mm Focal Length
Diameter
⌀25.4 mm
Thickness
edge thickness 2 mm
DimensionTolerance
diameter±0.1mm/thickness±0.5 mm
Flatness
<λ/4@632.8 nm
Parallelism
<3 arcmin
Surface Quality
40-20 S-D
ClearAperture
>90%
Wavelength
Uncoated BK7 lenses 350 nm-2 μm
Chamfers
<0.35 mm at 45°
Material
BK7
Focal Length
-100mm±3%@632.8 nm
MSDS
COA
Spec Sheet
1. Made of high quality UV grade fused silica BK7 glass; 2. Select from -25mm to -100mm focal length.
Beam Expanders; Relay Imaging; These lenses perform best when used in finite conjugate applications, typically for diverging convergent light.