Double Concave Lens - Fused Silica

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Material:: Fused Silica

Design Wavelength:: 546.1nm, n=1.46008

Diameter Tolerance:: +0.0/-0.1mm

Paraxial Focal Length:: ±2%

Centration:: 3 arc minutes

Surface Figure:: l/4@633nm

Surface Quality:: 60/40

Clear Aperture:: >80%

Bevel:: <0.25mmX45°

Coating:: Uncoated

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Product Features

The Double Concave Lenses are made from Fused Silica material, which are manufactured with both surfaces concave. These lenses have negative focal lengths. These lenses diverge collimated incident light and form virtual images

which are seen through the lens. They are often used to expand light or increase focal lengths in existing systems

They are used in laser beam expanders, optical character readers, viewers, and projection systems. We will provide precision grade Double Concave Lenses with tighter manufacturing tolerances.

Product parameters

Item#	φ(mm)	f(mm)	R1=R2(mm)	Tc	Te	Fb
BCV2-001	6.0	-15.0	14.03	1.5	2.15	15.50
BCV2-002	6.0	-30.0	27.84	1.5	1.82	30.51
BCV2-101	12.7	-15.0	14.11	2.0	5.02	15.67
BCV2-102	12.7	-20.0	18.71	2.0	4.22	20.67
BCV2-103	12.7	-25.0	23.32	2.0	3.76	25.68
BCV2-104	12.7	-30.0	27.92	2.0	3.46	30.68
BCV2-105	12.7	-40.0	37.12	2.0	3.09	40.68
BCV2-201	25.4	-25.0	23.32	2.0	9.52	25.68
BCV2-202	25.4	-35.0	32.52	2.0	7.17	35.68
BCV2-203	25.4	-50.0	46.32	2.0	5.55	50.68
BCV2-204	25.4	-75.0	69.33	2.0	4.35	75.69
BCV2-205	25.4	-100.0	92.33	2.0	3.76	100.68
BCV2-206	25.4	-150.0	138.34	2.0	3.17	150.68
BCV2-207	25.4	-200.0	184.35	2.0	2.88	200.69
BCV2-208	25.4	-250.0	230.36	2.0	2.70	250.69
BCV2-209	25.4	-300.0	276.36	2.0	2.58	300.68
BCV2-210	25.4	-500.0	460.40	2.0	2.35	500.69
BCV2-211	25.4	-1000.0	920.48	2.0	2.18	1000.69
BCV2-301	38.0	-50.0	46.48	3.0	11.12	51.02
BCV2-302	38.0	-100.0	92.49	3.0	6.95	101.03
BCV2-303	38.0	-150.0	138.50	3.0	5.62	151.03
BCV2-304	38.0	-200.0	184.50	3.0	4.96	201.02
BCV2-305	38.0	-350.0	322.53	3.0	4.13	351.03
BCV2-306	38.0	-500.0	460.55	3.0	3.78	501.02
BCV2-307	38.0	-750.0	690.59	3.0	3.52	751.02
BCV2-308	38.0	-1000.0	920.64	3.0	3.39	1001.04

Order Information

Tel : +86 591 83772101
Fax : +86 591 83772103
E-mail : sales@crylight.com
Website：www.crylight.com
Address : Bldg2,Wanwushe Smart Industrial park, No 2 Yangqi Branch Rd Gaishan Town ,Cangshan Area Fuzhou Fujian 350007 China

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