Plano-Concave Lens

Plano Concave Lens

Plano concave Lenses have one concave surface. It has negative focal length. It is often used to expand light or to increase focal length in existing systems.

Plano-Concave Lens

We can supply any kinds of Plano concave Lenses with most competitive price and high quality .

Plano-convex, plano-concave, biconvex, biconcave, plano-convex cylindrical, plano-concave cylindrical lenses made of BK7, UVFS or CaF2 optical material. Focal lengths vary from -1000 to 5000 mm.

Plano concave Lenses have one concave surface. It has negative focal length. It is often used to expand light or to increase focal length in existing systems.

Plano-Concave Lens Specifications:

Material: BK7, Fused Silica, SF10, CaF2, Sapphire .etc.
Paraxial Focal Length Tolerance: ±2%
Dimension Tolerance: ±0.2(General). ±0.05(High Precision)
Centration: <3 arc min
IRR: λ/4@633nm(General),λ/10@633nm(High Precision)
Clear Aperture: >80%(Small Size), >95%(Large Size)
Surface Figure <1.5λ@633nm(General),<λ/4@633nm(High Precision)
Surface Quality: 60/40(General),10/5(High Precision)
Bevel: <0.25mm
Coating: Uncoated, AR,PR, HR, etc.

Plano-Concave Lens Typical Sizes

Item No. Φ(mm) f(mm) R(mm) Tc(mm) Te(mm) Fb(mm)
Material N-BK7
LPV-001 6 -12 6.22 2 2.77 -13.31
LPV-002 6 -24 12.44 2 2.37 -25.31
LPV-101 12.7 -15 7.79 2 5.27 -16.35
LPV-102 12.7 -20 10.37 2 4.17 -21.32
LPV-103 12.7 -25 12.97 2 3.7 -26.33
LPV-104 12.7 -30 15.56 2 3.4 -31.31
LPV-105 12.7 -40 20.75 2 3 -41.32
LPV-106 12.7 -50 25.94 2 2.79 -51.33
LPV-107 12.7 -75 38.9 2 2.52 -76.31
LPV-108 12.7 -100 51.88 2 2.39 -101.33
LPV-201 25.4 -35 18.15 2 7.18 -36.32
LPV-202 25.4 -50 25.94 2 5.32 -51.33
LPV-203 25.4 -70 36.31 2 4.29 -71.32
LPV-204 25.4 -75 38.9 2 4.13 -76.31
LPV-205 25.4 -100 51.88 2 3.58 -101.33
LPV-206 25.4 -125 64.96 2 3.26 -126.36
LPV-207 25.4 -150 77.8 2 3.04 -151.3
LPV-208 25.4 -175 90.78 2 2.89 -176.32
LPV-209 25.4 -200 103.75 2 2.78 -201.33
LPV-210 25.4 -250 129.72 2 2.62 -251.39
LPV-211 25.4 -300 155.6 2 2.52 -301.29
LPV-212 25.4 -500 259.4 2 2.31 -501.39
LPV-213 25.4 -1000 518.7 2 2.16 -1001.28
LPV-301 30 -80 41.5 2 4.81 -81.32
LPV-302 30 -100 51.88 2 4.22 -101.33
LPV-303 30 -200 103.75 2 3.09 -201.33
LPV-304 38 -50 25.94 2 10.28 -51.33
LPV-305 38 -100 51.88 2 5.6 -101.33
LPV-306 38 -150 77.8 2 4.36 -151.3
LPV-307 38 -200 103.75 2 3.76 -201.33
LPV-308 38 -350 181.55 2 3 -351.31
LPV-309 38 -500 259.4 2 2.7 -501.39
LPV-310 38 -700 363.1 2 2.5 -701.31
LPV-401 40 -50 25.94 2 11.42 -51.33
LPV-501 50 -75 38.9 2 12.1 -76.97
LPV-502 50 -100 51.88 3 9.42 -101.99
LPV-503 50 -150 77.8 3 7.13 -151.96
LPV-504 50 -200 103.75 3 6.06 -201.99
LPV-505 50 -250 129.72 3 5.43 -252.05
LPV-506 50 -400 207 3 4.52 -401.03
LPV-507 50 -500 259.4 3 4.21 -502.05
LPV-508 50 -600 311.2 3 4.01 -601.91
LPV-509 50 -800 415 3 3.75 -802.02

A-Star’s Plano-Concave Lens

have negative focal lengths
diverge collimated incident light
forms only virtual images which are seen through the lens
reduce spherical aberration, coma and distortion at negative-infinite or near-infinite conjugate ratios
with the concave surface facing the longest conjugate distance

Plano-Concave Lens Manufacturer, Plano-Concave Lens supplier in fuzhou, china.

These lenses are thicker at the edge than in the centre and flat on one side. The plano-concave lenses are used to expand light beams or to increase focal lengths in optical systems. They are often employed for beam expansion of high peak power pulsed lasers. A beam incident on a concave surface will be focused to a point outside the instrument.