Name: Meniscus Lens
Rating: 4.5 (100 reviews)

Key Features

Materials

Optical glass such as K9, fused silica, sapphire, MgF2, silicon (Si), ZnSe, ZnS, etc. These materials possess high transmittance, low absorption, low scattering, uniform refractive index, and specific dispersion characteristics.
Shape

Precisely hemispherical. The machining precision of the center and radius of curvature of the sphere is extremely high.
Surface Quality

The surface is precision polished to an optical grade of 10-5 to ensure image quality and reduce scattering and aberrations.
Coating

An AR coating is typically applied to the concave surface to maximize the transmittance of specific wavelengths of light (e.g. visible light) and reduce reflection loss.

Drawing

Specification of Meniscus Lens

Material	Optical glass/ Fused silica/ sapphire etc.
Diameter	2mm~300mm
Diameter tolerance	±0.05mm(≤50mm)
Diameter tolerance	±0.1mm(＞50mm)
Focal length	-50mm~-2000mm
Focal length tolerance	±0.2%（＜10mm）
	±0.5%（＜10mm-1000mm）
	±1%（＜＞1000mm）
Center Thickness	2mm~20mm
Surface quality	60/40， 40/20， 20/10
Surface accuracy	λ/2~λ/10@632.8nm，532nm
Clear Aperture	>85% dig diameter
Centration	<3arc min~ 30arc sec
Coating	As per customer’s request

Material	Diameter (mm)	Convex Surface Radius (mm)	Concave Surface Radius (mm)	Center Thickness (mm)	Focal Length (mm)
H-K9L	7	4.6	-4.60	3	41.4
H-LAF38	8	6.28	-95.10	2.2	8.9
H-ZBAF5	8	9.7	-19.72	2.27	26
H-ZF52A	8	12.05	-9.50	4.2	217
ZnSe	8.6	11.22	-50.58	1.4	8.7
H-ZF62	9	9.911	-38.55	2.1	13.8
H-ZF62	9	10.59	-13.37	7.64	23.8
H-K9L	10	5.19	-500.00	6.2	10.1
JGS1	10.802	7.69	-7.28	3	226.1
H-K9L	11	16.57	-156.37	3	35.5
H-LAF50A	12	13.176	-132.74	3.3	18.7
H-ZK9	12	11.57	-48.93	2.86	23.7
H-ZBAF21	12	15.374	-65.11	3	27
H-ZK3	13	8.088	-21.23	4	23.2
S-LAM7	13	16.94393	-170.00	2.5	24.9
H-ZLAF75A	14	13.804	-51.24	2.4	20.1
H-ZF7LA	14	11.324	-5.50	9.54	49.3
H-K9L	14	10.36	-14.62	5	50.3
H-ZLAF68	14	10.16	-6.87	6.4	282.2
H-ZF6	15	119	-18.95	3.86	30.3
H-LAF3B	15	20.73	-145.88	2.8	32.2
H-K9L	15	9.26	-18.16	3.5	32.3
H-ZLAF55A	15	28.847	-293.95	3	38.1
H-ZK3	15.2	15.3	-231.90	2.8	27.67
LAF10	15.5	24.66	-163.59	2.7	36.52
H-LAF53	16	12.823	-33.57	4.8	25.4
H-ZLAF52	16	18.67	-67.51	3	31.2
H-ZK6	16	13.996	-34.67	3.5	36.4
H-LAK4	16	22.7	-39.63	4	74.8
H-ZLAF68	16	11.251	-7.74	4.8	78.1
ZK9	17	11.695	-11.70	7	81.4
H-ZF13	18	96.302	-26.99	1.5	48.2
H-K9L	18	36.4	-51.52	3.5	222.45
H-LAF10L	18.98	21.38	-32.36	3.6	69.8
H-ZK9A	19	13.895	-29.05	3.6	39.4
ZK7	19.4	17.783	-43.05	3	47.29
H-LAF53	20	16.482	-55.46	4	30.1
H-ZK10	20	18.054	-35.41	5	53.3
H-ZLAF66	20	21.099	-28.09	5	80.3
H-ZK7	20	60.67	-778.00	2.9	106.8
H-BAK4	22	17.497	-114.52	4.7	36.7
H-LAK3	22	21.04	-39.81	3.8	54.7
H-ZBAF3	22	38.9	-498.90	2.7	63.8
H-K9L	22	72.44	-1130.00	5	149.5
H-BAK4	22.5	24.619	-1735.00	5	45
H-ZF7LA	22.6	22.44	-28.91	9.88	74
H-LAF53	23	16.788	-36.22	5	38
H-LAF53	23	16.788	-36.22	5	38
BAF5	23	32.8	-219.10	3	62.3
H-ZK1	23.4	46.48	-176.06	4.56	109.6
H-LAK59	23.48	102.33	-194.98	2.5	308.2
H-ZF7LA	24	17.819	-30.30	10	39.6
H-K9L	25	17.3	-27.00	4.55	80.3
H-K9L	25.4	32.1	-82.20	3.6	100
JGS1	25.4	31	-91.20	4	100
H-K9L	25.4	66.2	-182.20	2.8	200
JGS1	25.4	64.2	-209.80	2.9	200
H-K9L	25.4	100.9	-288.20	2.5	300
ZK9	25.5	22.96	-89.26	4.4	48.59
N-SF6	26	32.15	-176.40	4	43.2
H-LAK3	26	26.79	-127.94	4.2	44.4
H-K9L	26	23.93	-331.70	6	49.58
H-ZK11	27	23.07	-77.04	4.8	49.8
H-LAK1	27	26.24	-74.99	4.1	59.8
H-ZK10	27	38.688	-1541.90	5	63.7
H-ZK10	27	43.279	-311.79	5	80
H-ZK9	28	21.82	-83.35	5.5	46.07
H-ZBAF21	28	37.865	-862.87	3.5	54.7
H-LAF53	30	18.75	-52.24	7.5	35.9
H-K9L	30	18.8	-37.95	5.9	65.7
ZK9	32	23.99	-42.85	8	75.58
H-BAK4	33	23.4	-38.20	6.2	95.14
H-K9L	33	50.35	-85.11	3.1	231.74
H-ZF6	33.5	213.8	-46.03	2.97	71.9
H-ZK98	34	49	-75.00	4.5	213.7
H-ZBAF3	35	38.15	-212.35	10	69.2
H-K9L	36	64.9	-116.41	3.6	277.48
H-ZBAF3	40	52.2	-2148.00	12.1	81.3
H-K9L	40	45.71	-62.37	3.5	309.27
H-K9L	41	78.52	-622.30	4.1	173.57
H-K9L	41	65.77	-111.94	3.7	300.61
F2	42	28.5	-71.30	8.8	71.8
H-ZBAF20	42	32.137	-59.02	14	82.8
H-QK3L	42	35.471	-34.95	14.1	621
H-ZF6	43.2	51.2	-71.28	4	221.7
H-QK3L	44	37.026	-239.30	8	88.7
H-ZF6	45	48.91	-87.90	5	136.7
H-K9L	48.5	72.44	-150.31	4.5	265.57
H-ZK11	49	32.81	-104.23	11.4	70.6
H-K9L	50.5	81.75	-145.88	4	352.64
H-K9L	58	107.15	-477.00	7	265.1
F4	59	1267.1	-266.16	5	544
H-K9L	60	39.72	-142.41	13.8	102
H-K9L	60.274	66.37	-178.49	10.66	198
H-K9L	60.274	122.987	-424.51	10.66	331
H-ZF2	74	65.851	-121.34	9	201
H-ZBAF21	76	157.04	-306.97	6	437
H-K9L	81	203.7	-2773.00	9.96	424.84
H-LAK7	104	181.59	-320.37	12	567.4
H-K9L	106	110.1	-257.80	11.3	362.4

Typical Application Areas

Underwater Photography and Detection:

Observation windows for underwater cameras, ROVs (Remotely Operated Vehicles), and AUVs (Autonomous Underwater Vehicles). The hemispherical design provides a near 180° wide field of view while withstanding water pressure.
Underwater Photography and Detection:

Observation windows for underwater cameras, ROVs (Remotely Operated Vehicles), and AUVs (Autonomous Underwater Vehicles). The hemispherical design provides a near 180° wide field of view while withstanding water pressure.
Underwater Photography and Detection:

Observation windows for underwater cameras, ROVs (Remotely Operated Vehicles), and AUVs (Autonomous Underwater Vehicles). The hemispherical design provides a near 180° wide field of view while withstanding water pressure.