Dia25.4mm EFL-50mm N-BK7 Biconcave Lenses 650-1050nm AR Coating

Code: 1108-013B

$18.00

Qty 2-5
$16.20

Qty 6
$14.58

Specifications:

Lens Form	Biconcave Lens	Material	N-BK7
Diameters(mm)	25.4(+0.0/-0.1)	Design Wavelength(nm)	587.6
Effective Focal Length EFL(mm)-	50.00±1%	Back Focal Length BFL(mm)	-50.98
Coating	650-1050nm AR Coating	Surface Quality(S/D)	40/20
Irregularity@632.8nm	λ/2	Centration Error(arc min)	≤2
Center Thickness	3.0±0.1	Edge Thickness	6.1±0.1
Curvature Radius R1	-52.01	Clear Aperture	90%
Protective Chamfer	0.2mmx45°	Wavelength Range(nm)	350-2200

Dia25.4mm EFL-50mm N-BK7 Biconcave Lenses 650-1050nm AR Coating, Code: 1108-013B

Biconcave Lenses or Double Concave Lenses are optical lenses with two inward-bent spherical surfaces of identical radii of curvature. A double concave lens has a negative focal length and diverges a collimated light beam to the virtual focal point and increases the focal lengths of a lens group.

This catalog features Shalom EO’s Off-the-shelf N-BK7 Biconcave and UV Fused Silica Biconcave Lenses.

N-BK7

25.4mm

-50mm

λ/2

650-1050nm AR Coating

$18.0

1 Week