Bi-Convex LensesClick part # for details or to add to shopping cart.

Specifications

EFL (mm): 20
Dia: 21
D: 20.2
CT: 8.2
ET: 2
Material: BK7
R1: 19.24
R2: -19.24
BF: 17.1
V1H1: 2.9
Specifications: Effective Focal Length (EFL): +/- 1%
Diameter (DIA): +0/-.18
Clear Aperture: 90% of diameter
Center Thickness (CT): +/- .25
Cosmetics: 60/40
Surface Quality: 2 1/2 X 1/2 waves @ 546.1nm
Centering Accuracy: 2 arc minutes TIA
Designed Wavelength: 546.1nm
All dimensions are in millimeters.

Choose your coating:

Part #: CBX10558/000

Price: $40.90

based on coating and quantity (below)

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Quantity:

Product Listings Discount prices at 25 and 50 pieces. For quantities over 100 please contact us for our best discounted price.

ID	EFL (mm)	Dia	f/#	D	CT	ET	Material	R1	R2	BF	V1H1	Part Number	Price

1839	3.5	3	1.2	3.2	1.8	1.1	B270	3.33	-3.33	2.8	0.7	CBX10547/000	$21.70
1840	4.5	5	0.9	4.6	2	0.4	BK7	4.28	-4.28	3.8	0.7	CBX10550/000	$36.10
1986	7.5	7.1	1.1	7	3.8	2.3	S-NSL5	8.06	-8.06	6.2	1.3	CBX10548/100	$37.00
1997	8	7.1	1.1	7.4	3.8	2.3	S-BAL35	8.6	-8.6	6.6	1.4	CBX10548/000	$23.00
1998	8	6	1.3	7.5	3.2	2	BK7	7.71	-7.71	6.9	1.1	CBX10551/000	$22.20
1872	10	5	2	9.5	2.6	2	BK7	9.91	-9.91	9.1	0.9	CBX10545/000	$11.40
1873	10	7.5	1.3	9.5	3.5	2	BK7	9.74	-9.74	8.8	1.2	CBX10552/000	$13.10
1874	10	10	1	9.7	4.8	2	BK7	9.48	-9.48	8.3	1.7	CBX10553/000	$19.40
1891	12	6.4	1.9	12.1	3	2.3	BK7	12.68	-12.68	11.7	1	CBX22265/000	$21.50
1841	12.7	4	3.2	11.9	2.8	2.5	BK7	12.68	-12.68	11.7	1	CBX10544/000	$21.90
1842	12.7	6.3	2	12.1	2.8	2	BK7	12.68	-12.68	11.7	1	CBX10554/000	$12.90
1904	13	5	2.6	12.8	1.4	0.9	S-NSL5	13.35	-13.35	12.6	0.4	CBX10549/000	$11.40
1843	14.1	12.5	1.1	14	4.3	1.3	BK7	13.8	-13.8	12.6	1.5	CBX10563/000	$21.80
1844	14.2	12.5	1.1	13.9	5	1.9	BK7	13.79	-13.79	12.4	1.8	CBX10555/000	$21.80
1906	15	7.5	2	14.5	2.9	2	BK7	15.05	-15.05	14	1	CBX10556/000	$11.60
1907	15	14.5	1	14.9	5.9	2	BK7	14.48	-14.48	12.9	2.1	CBX10557/000	$20.80
1908	15	6	2.5	14.7	1.7	1.1	BK7	15.21	-15.21	14.4	0.6	CBX10562/000	$11.60
1909	15	6.4	2.4	14.6	2	1.4	BK7	15.21	-15.21	14.3	0.7	CBX22305/000	$19.20
1921	17	9.5	1.8	16.9	2.1	0.8	S-NSL5	17.4	-17.4	16.2	0.8	CBX10560/000	$11.50
1846	18.6	2.8	6.7	17.6	29.5	29.4	N-S-BAL35	11.68	-11.68	17.5	1.1	CBX10564/000	$21.90
1929	20	12.5	1.6	19.6	4.2	2.4	BK7	20.02	-20.02	18.6	1.4	CBX22267/000	$40.90
1930	20	12.7	1.6	19.6	4.2	2.3	BK7	20.02	-20.02	18.6	1.4	CBX22268/000	$24.60
1931	20	21	1	20.2	8.2	2	BK7	19.24	-19.24	17.1	2.9	CBX10558/000	$40.90
1847	20.8	15	1.4	19.3	4.8	2	BK7	20.76	-20.76	19.2	1.7	CBX10566/100	$34.60
1943	22	20	1.1	22.1	6.9	2	BK7	21.58	-21.58	19.6	2.4	CBX10559/000	$24.00
1944	24	12	2	23.3	4	2.5	S-NSL5	24.4	-24.4	22.6	1.4	CBX10569/100	$40.90
1947	25	12.7	2	24.4	3.6	2	BK7	25.13	-25.13	23.6	1.2	CBX10600/000	$13.80
1848	25.4	25.4	1	25.8	9	2	BK7	24.71	-24.71	22.2	3.2	CBX10601/000	$19.80
1955	30	30	1	30.5	10.3	2	BK7	29.26	-29.26	26.4	3.6	CBX10603/000	$27.00
1956	30	22.4	1.4	30	6.3	2	BK7	30.01	-30.01	27.8	2.2	CBX10602/000	$31.60
1851	31.7	35	0.9	32.6	12.9	1.9	BK7	30.51	-30.51	27.1	4.6	CBX10604/000	$30.00
1852	31.8	25.4	1.3	32	7.3	2	BK7	31.59	-31.59	29.3	2.5	CBX10606/000	$19.80
1960	36	25.4	1.4	36.3	6.4	1.8	BK7	35.97	-35.97	33.8	2.2	CBX10610/000	$34.20
1961	36	25	1.4	36.2	6.4	1.9	BK7	35.97	-35.97	33.8	2.2	CBX10605/000	$34.20
1854	40.1	22.4	1.8	40	5.1	1.9	BK7	40.61	-40.61	38.4	1.7	CBX10611/000	$19.00
1855	41.5	22.8	1.8	40.9	6.4	3.3	B270	42.46	-42.46	39.3	2.2	CBX10613/000	$31.60
1965	42	22.9	1.8	41.2	6.4	3.3	B270	42.66	-42.66	39.7	2.3	CBX10615/000	$19.80
1966	45	38	1.2	45.7	10.4	2	BK7	44.84	-44.84	41.4	3.6	CBX10616/000	$26.10
1856	47	13	3.6	46.6	2	1.1	BK7	48.26	-48.26	46.2	0.7	CBX10567/100	$34.60
1967	50	50	1	52.1	15	2.9	BK7	49.66	-49.66	45.3	5.2	CBX22274/000	$38.20
1968	50	25.4	2	50.2	4.2	1	BK7	50.79	-50.79	48.6	1.4	CBX10630/000	$19.80
1969	50	12.7	3.9	49.4	3	2.2	BK7	50.99	-50.99	49	1	CBX10620/000	$22.20
1972	50	25	2	50.2	4.2	1.1	BK7	50.79	-50.79	48.6	1.4	CBX10625/000	$19.80
1858	50.2	25	2	50	5.1	2	BK7	50.99	-50.99	48.5	1.7	CBX10626/000	$19.80
1859	50.2	42	1.2	51	11.2	1.9	BK7	49.88	-49.88	46.3	3.8	CBX10629/000	$36.80
1860	50.8	60	0.9	52.7	23.7	2.8	BK7	48.28	-48.28	42.3	8.5	CBX10632/000	$46.70
1861	50.8	50.8	1	51.9	16.8	2.8	BK7	49.66	-49.66	44.9	5.9	CBX10631/000	$119.00
1862	51.5	12	4.3	51.2	2	1.3	B270	53.8	-53.8	50.9	0.6	CBX10636/000	$13.40
1979	54	25.4	2.1	50.3	6.7	3.7	BK7	54.85	-54.85	51.7	2.3	CBX10638/101	$85.40
1980	54	32	1.7	54.1	6.7	1.9	BK7	54.85	-54.85	51.7	2.3	CBX10633/000	$20.70

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JML engineers are always available to help you design a lens to meet your specific requirements. We can also reduce the diameter of our stock lenses to meet your specifications. For assistance, email sales@jmloptical.com or call +585.248.8900.

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Bi-Convex LensesClick part # for details or to add to shopping cart.

Specifications

Choose your coating:

Choose Coating

Product Listings Discount prices at 25 and 50 pieces. For quantities over 100 please contact us for our best discounted price.

Special Orders

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