2023 Free Sample/Inquiry for Drawings Biconcave Lens

Model:	-
Brand:	Oplens
Origin:	Made In China
Category:	Electronics & Electricity / Electronic Instrument / Optical Lens & Instrument
Label:	-
Price:	-
Min. Order:	10 pc

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Product Description

The biconcave lens, also named double concave lens, is usually made of flint glass and used for beam divergence. It’s focal length is negative but the parallel incident ray diverges outward. The two sides of the biconcave lens curvature radius can be equal or not. Combined with plano-convex lens, it is generally used in beam expanders, projection optical systems and optical viewers, etc.

Oplens can not only customize the common plano-concave lens of N-BK7 or fused quartz, but also customize the biconcave lens of any glass material.

You are welcome to contact us for customized biconcave lenses.

Parameters

Material	Optical Glass
Surface Flatness	< λ/5 @ 633nm
Scratch/Dig	< 40/20 (both sides)
Eccentricity	≤ 1arcmin
Focal Length Tolerance	< ± 1%
Diameter Tolerance	< + 0.00/ - 0.02mm
Thickness Tolerance	< ± 0.05
Clear Aperture	≥ 95% of diameter
Coating	AR OR BBAR
Diameter Range	5~260mm

Stock Products:

Serial No.	Parts No.	Material	DIA	R1	R2	TC	F
1	S41N210.6	ZF1	41	-691.8	-170.22	2.8	-210.60
2	S54N197.1	ZF4	54	-340.4	-248.9	2.5	-197.10
3	S65N190	ZF1	65	-516.37	-162.55	5.49	-190.28
4	S90N152.3	H-K9L	90	-102.45	-346.7	6	-152.30
5	S29.5N143.3	BaK2	29.5	-2249	-80.17	2	-143.32
6	S30.5N136.7	Bak2	30.5	-2249	-76.38	2	-136.76
7	S20N128.3	H-K9L	20	-298.98	-85.4	2	-128.31
8	S25N100BCCFS	JGS1	25	-92.08	-92.08	2.5	-100.00
9	S12.5N99	H-K9L	12.5	-102.5	-102.5	1.5	-98.92
10	S68N92.3	H-ZF2	68	-83.49	-249	5.5	-92.30
11	S72N80	H-F4	72	-169.92	-71.8	12	-80.00
12	S72N80NEW	H-F4	72	-169.92	-71.8	12	-80.00
13	S58N77.8	H-ZF3	58	-73.79	-234	4	-77.80
14	S30N77	JGS1	30	-70.96	-70.96	3	-77.00
15	S65N67.5	ZBaF3	65	-295.61	-52.36	2.5	-67.53
16	S68N65.6	F13	68	-2465.0	-41.761	3	-65.60
17	S27N62.7	ZK9	27	-148.8	-52.864	1.45	-62.70
18	S60N61.3	F4	60	-74.901	-78.424		-61.33
19	S21N51	H-ZF6	21	-77.39	-77.39	1	-51.00
20	S25N50BCC	H-K9L	25	-52.1	-52.1	2.5	-50.00
21	S44N45.8	ZF7L	44	-152.79	-49.036	3.5	-45.80
22	S14N45	H-ZF2	14	-36.17	-192.31	3	-45.00
23	S15N45	H-ZF2	15	-36.17	-192.31	3	-45.00
24	S21N42.8	H-ZF7LA	21	-42.6	-184.33	2	-42.80
25	S28.6N35	H-ZK21	28.6	-280.79	-23.799	4.064	-35.00
26	S13N33.5	H-ZF6	13	-30.567	-153.79	3	-33.50
27	S14N31.6	H-ZF6	14	-34.69	-79.62	3	-31.60
28	S13.5N31.6	H-ZF6	13.5	-34.69	-79.62	3	-31.60
29	S14N27	H-LAK53A	14	-31.693	-58.811	1.5	-27.00
30	S25N25.4	H-LAF4	25	-38.416	-38.416	1.5	-25.40
31	S25N25	H-F4	25	-36.73	-29.17	8.4	-25.00
32	S13N24.4	H-LAK7	13	-48.91	-27.72	3	-24.40
33	S12N24BCC	H-K9L	12	-25.14	-25.14	2	-24.00
34	S17.3N23.9	H-LAF50B	17.3	-37.24	-37.24	1.26	-23.90
35	S12N23.4	BAF3	12	-19.543	-47.1	3	-23.44
36	S14N19	H-K9L	14	-27.94	-32.15	2	-19.00
37	S24N18.9	H-K9L	24	-11.092	-89.95	2	-18.90
38	S22N18.7	H-ZF7LA	22	-255.3	-16.218	1	-18.70
39	S20N16.7	H-ZF52A	20	-51.591	-21.003	9	-16.70
40	S15N16.4SZ	H-ZF6	15	-22.96	-27.72	1.9	-16.40
41	S15N16.4	H-ZF6	15	-27.542	-23.605	2.8	-16.40
42	S32N15.7	H-ZF3	32	-11.83	-284	7.23	-15.70
43	S15N14.8	H-F3	15	-50.54	-11.31	2	-14.80
44	S16N14.6	H-ZF3	16	-30.62	-15.776	1.5	-14.60
45	S13N11.3	H-ZK2	13	-12.12	-15.69	3	-11.30
46	S16.7N11	H-LAF50B	16.7	-16.82	-17.76	1	-11.00
47	S10N10.4	H-K9L	10	-11.092	-11.092	1.8	-10.40
48	S10N9.8	JGS1	10	-9.247	-9.247	2	-9.80
49	S5N9.8	H-ZF3	5	-14.377	-14.377	1.25	-9.80
50	S8N7.4	H-ZF6	8	-7.2	-30.54	3	-7.40
51	S12N7.4	ZF11	12	-12.622	-12.622	5	-7.40
52	S15N7.4	N-SF6	15	-13.24	-12.05	3	-7.40
53	S11N7.1	H-ZF7LA	11	-11.883	-11.883	2	-7.10
54	S8N7.1	ZF7	8	-11.883	-11.883	2	-7.10
55	S8N7.1NEW	H-ZF7LA	8	-11.883	-11.883	2	-7.10
56	S12N5.4	H-ZF6	12	-5.861	-18.267	5	-5.40

If you are finding spherical lenses and aspherical lenses in china, we will be your best choose! We have our own factory, so we can give you a cheap price!