Meniscus Lens

Meniscus Lens

Meniscus lens is a lens that has two curved spherical surfaces, one convex and the other concave. Around the middle, the meniscus lens is thicker than at the sides. Thus, rising beam waste and spherical aberration the lens has a smaller beam diameter.
When a meniscus lens is paired with another lens it shortens the focal length and increases the system’s numerical aperture. This decreases the distortion of the image and increases the resolution of the image.

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Categories: Lenses, Optical Products

Product Catalogue

Part No.	f (mm)	dia. (mm)	R1 (mm)	R2 (mm)	fc (mm)	te (mm)	fb (mm)
LEN4101	100.0	25.4	33.72	90.0	4.0	2.5	97.5
LEN4102	125.0	25.4	8.47	90.0	4.0	2.8	121.8
LEN4103	150.0	25.4	42.52	90.0	4.0	3.0	146.3
LEN4104	175.0	25.4	46.05	90.0	4.0	3.1	171.2
LEN4105	200.0	25.4	49.03	90.0	3.5	2.8	197.0
LEN4106	250.0	25.4	83.96	235.0	3.5	3.0	296.3
LEN4107	300.0	25.4	94.08	235.0	3.5	3.0	296.3
LEN4108	400.0	25.4	110.72	235.0	3.5	3.1	395.8
LEN4109	500.0	25.4	123.9	235.0	3.5	3.2	495.4
LEN4110	800.0	25.4	145.39	600.0	3.5	3.3	794.5
LEN4111	1500.0	25.4	339.05	600.0	3.5	3.4	1492.0
LEN4112	2000.0	25.4	380.54	600.0	3.5	3.4	1990.2
LEN4113	4000.0	25.4	466.12	600.0	3.5	3.5	3984.5
LEN4114	-100.0	25.4	90.0	32.59	3.0	4.5	-99.2
LEN4115	-125.0	25.4	90.0	37.26	3.0	4.2	-123.7
LEN4116	-150.0	25.4	90.0	41.42	3.0	4.0	-149.5
LEN4117	-175.0	25.4	90.0	44.86	3.0	3.8	-174.6

Specifications

Materical	BK7 or other optical glass, Fused Silica, ZnSe, CaF2
Diameter Tolerance	+0/-0.15mm
Paraxial Focal Length Tolerance	±2%
Centration	3 arc minutes
Surface Quality	60-40 scratch and dig
Clear Aperture	>85%
Surface Figure	λ/4@632.8nm
Chamfer	<0.25 mm x 45°
Coating	Customer Specified

Product Knowledge

Special Features

We have the latest technology to manufacture low cost and high-quality glass half-ball lenses
Widely used by major LED firms such as Cree, Samsung, PerkinElmer and many more
Instead of moulding, we use optical machining technology to make all products, such as BK7, B270, Fused Silica, Crystal and any other optical glass.
Glass lenses have many benefits compared with plastics and silicone lens used in the LED industry
Half ball lens with scratch-resistant surface, higher transmission, a high or very high index of refraction, heat-resistant up to > 300 ° C (572 ° F), some applications such as high power or UV LED.

Applications
1. Meniscus lens Used often for Beam Focusing
2. Meniscus lens also Diminishes the Increase in Spherical Aberrations for Multi-Element Systems