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.