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https://www.ecoptik.net/products/plano-concave-lens/

Planar concave lens bend parallel input rays so they diverge from one another on the output side of the lens and hence have a negative focal length. The spherical aberration of the plano concave lenses is negative and can be used to balance aberrations created by other lenses. Similar to the plano concave lens, the curvature surface usually faces the largest object distance or the infinite conjugate to minimize spherical aberration.
Evoputk is one of the leading concave lenses factories.
If you want to know more information about plano concave lens, please contact us.

Description Of Plano Concave Lens
Ecoptik Plano concave lens bend parallel input rays so they diverge from one another on the output side of the lens and hence have a negative focal length. The spherical aberration of the plano concave lenses is negative

Specifications Of Plano Concave Lens

MaterialOptical glass/ Fused silica/ sapphire   etc.
Diameter2mm~300mm
Diameter tolerance±0.05mm(≤50mm)
±0.1mm(＞50mm)
Focal length-50mm~-2000mm
Focal length tolerance±0.2%（＜10mm）
±0.5%（＜10mm-1000mm）
±1%（＜＞1000mm）
Edge Thickness2mm~20mm
Surface quality60/40， 40/20，   20/10
Surface accuracyλ/2~λ/10@632.8nm，532nm, etc.
Clear Aperture>85% dig diameter
Centration<3arc min~ 30arc sec
Chamfer<0.2mm×45°
CoatingAs per customer’s request

Type No.Diameter
(mm)Center Thickness
(mm)Edge Thickness
(mm)Effective Focal Length
(mm)
PCA-6622.9-10
PCA-7.87.85.316.3-12.7
PCA-8823-15
PCA-101023.2-20
PCA-12.7-A12.724.1-20
PCA-12.7-B12.723.4-30
PCA-12.7-C12.722.8-50
PCA-12.7-D12.722.3-100
PCA-151522.7-75
PCA-212124.7-40-
PCA-22.422.423.2-100
PCA-25.4-B25.427.2-35
PCA-25.4-C25.424.3-70
PCA-25.4-D25.424.1-75
PCA-25.4-E25.423.6-100
PCA-25.4-F25.423-150
PCA-25.4-G25.422.7-200
PCA-25.4-H25.422.5-300
PCA-25.4-I25.422.3-500
PCA-25.4-J25.422.2-1000
PCA-303024.8-80
PCA-38-A38311.3-50
PCA-38-B3836.6-100
PCA-38-C3834.8-200
PCA-38-D3834-350
PCA-38-E3833.7-500
PCA-38-F3833.5-700
PCA-50-A50511-100
PCA-50-B5059.7-125
PCA-50-C5034.2-500
PCA-50-D5033.8-800
PCA-50.8-A50.83.513-75
PCA-50.8-B50.8410.7-100
PCA-50.8-C50.848.3-150
PCA-75-A75514.6-150
PCA-75-B75512-200
PCA-100-A100618.85-200
PCA-100-B100616-250
PCA-100-C1006.214.45-300
PCA-100-D1008.214.32-400
PCA-100-E100812.87-500
PCA-100-F1009.613.64-600
PCA-125-A1254.217.3-300
PCA-125-B1255.615.24-400
PCA-125-C125613.64-500
PCA-125-D125915.34-600
PCA-125-E1258.413.82-700
PCA-125-F1259.614.34-800
PCA-150-A150519.03-400
PCA-150-B1506.217.29-500
PCA-150-C1507.516.68-600
PCA-150-D150916.83-700
PCA-150-E150814.84-800
PCA-200-A2006.5726.63-500
PCA-200-B2007.824.31-600
PCA-200-C2009.223.25-700
PCA-200-D20010.522.73-800
PCA-200-E20011.822.64-900
PCA-200-F20013.122.83-1000
PCA-250-A250628.2-700
PCA-250-B2506.926.18-800
PCA-250-C250825.05-900
PCA-250-D2509.528.45-1000
PCA-250-E2501225.87-1100
PCA-250-F2501527.69-1200
PCA-300-A3001032.17-1000
PCA-300-B3001230.35-1200
PCA-300-C3001429.67-1400
PCA-300-D3001629.67-1600

MaterialDiameter
   (mm)Concave Surface   Radius
   (mm)Center   Thickness
   (mm)Focal   Length
   (mm)
H-K9L3-3.053-5.9
H-K9L5-51.685-100
H-K9L9-10.81.4-20.9
JGS110-13.812-30.1
Corning 797810-6.1112-13.3
H-K9L11-11.6951-22.65
H-K9L12-42.631.5-82.5
Coring797812-272-58.9
Corning 797812-18.1552-39.6
H-K9L12-13.41.4-26
HWB85012-8.33-16
H-ZF7LA12-92-11.2
JGS112.7-6003-300
JGS112.7-5003-250
JGS112.7-33.6243.4-16.8
H-ZK613-7.2383-12.4
H-LAF314-8.62-11.6
H-K9L15-36.074.2-69.8
HWB85017-18.421.5-34.4
H-K9L19-8.52-16.5
ZF619-9.6152-12.7
H-K9L20-15003-2902
H-K9L20-10003-1935
H-K9L20-8003-1548
H-K9L20-5003-967
JGS120-33.3324-72.7
JGS120-31.6883-69.1
H-ZF7LA20-23.551.4-28.9
B27021.9-14.124.1-27
H-K9L22-272-52.2
Silica22.5-904.3-45
ZF224-19.84.1-29.43
H-K9L25-51.683.5-100
JGS125-45.842.5-100
JGS125-22.922-50
JGS125-22.893-50
JGS125.4-1503-75
JGS125.4-232-50
Silica25.4-38.13.18-19
H-ZF328-13.96414-19.5
H-ZF7LA30-12.7061.2-15.6
ZK230.3-82.62-141.56
H-ZF7LA32-18.78.05-23.2
H-K9L33-1552.5-299.92
H-K9L42-51.872-100
JGS142-34.783-75.9
H-ZF7LA44.98-35.1492.5-43.7
JGS146-70.963-155
H-ZF7LA51.98-35.1492-43.7
H-ZF7LA52-44.33.485-55
H-K9L58-60010-1161
ZBaF558-39.172-58.37
H-ZF1199-116.833.5-167
H-K9L100-200012-1000

As a professional precision optical company, our company occupies an area of 2,000 square meters, supported by 120 workers.
As a professional concave lens company,we provide plano concave cylindrical lens with competitive price.