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Dia12.7mm EFL-50mm N-BK7 Plano Concave Lens Uncoated

Code: 1103-009


Qty 2-5
Qty 6
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Type Plano-concave Lens Material N-BK7
Diameters(mm) 12.7(+0.0/-0.1) Design Wavelength(nm) 587.6
Effective Focal Length EFL(mm) -50.00±1% Back Focal Length BFL(mm) -51.78
Coating Uncoated Surface Quality(S/D) 40/20
Irregularity@632.8nm λ/4 Centration Error(arc min) ≤2
Center Thickness 2.7±0.1
Edge Thickness 3.5±0.1
Curvature Radius R1 -25.84 Clear Aperture 90%
Protective Chamfer 0.2mmx45°
Dia12.7mm EFL-50mm N-BK7 Plano Concave Lens Uncoated, Code:1103-009
Plano concave lens is a simple lens with one spherical face and one flat face, it has a negative focal length, allowing the part to increase the divergence of convergent light. Plano concave lenses can be used to balance out the spherical aberrations caused by other lenses. Concave lenses have a broad range of applications including, focusing and control of laser beams, imaging, and other optical instruments. 
Hangzhou Shalom EO stocks a series of N-BK7 plano-concave lenses with various diameters, focal lengths, and coatings, and the custom lens with other specifications are also available upon request.
2~3 Days