Optical Glass Plano-Concave Lenses
1. Beam expansion
2. Light projection
3. Expanding an optical system’s focal length
Plano-Concave Lenses are with negative focal lengths and they can be used to diverge collimated beams; in this case, the curved surface should face the source in order to minimize spherical aberration. In addition, they can be employed to offset the effects of spherical aberration caused by other lenses in an optical system. Because the spherical aberration of the Plano-Concave is negative, it can be used to balance the aberration of other lenses.
WTS offer N-BK7 Plano-Concave Lenses, Fused silica Plano-Concave Lenses, Calcium Fluoride Plano-Concave Lenses etc.
Material:
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Grade A optical glass, UV, VIS, IR material
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Dimension Tolerance:
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±0.1mm(Standard), ±0.05mm(High Precision)
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Center Thickness Tolerance:
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±0.1mm(Standard), ±0.05mm(High Precision)
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Paraxial Focal Length:
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±2%
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Surface quality:
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60/40(Standard), 20/10(High Precision)
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Clear Aperture:
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>85%
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Surface Figure:
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λ/2(Standard), λ/4(High Precision) @633nm
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Centration:
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3 arc minutes
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Bevel:
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<0.25mm×45°
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Coating:
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Upon requirement
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A
plano concave lens is an optical lens with one concave surface and one
flat surface. Optical Glass Plano-Concave Lenses has a negative focal
length, and can be used for light projection, beam expansion, or to
increase focal length of an optical system.
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Typical Sizes
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Item No.
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Diameter (mm)
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f(mm)
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R(mm)
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Tc(mm)
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Te(mm)
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Fb(mm)
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Material
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N-BK7
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PLCV001
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6
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-12
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6.22
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2
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2.77
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-13.31
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PLCV002
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6
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-24
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12.44
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2
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2.37
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-25.31
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PLCV101
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12.7
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-15
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7.79
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2
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5.27
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-16.35
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PLCV102
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12.7
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-20
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10.37
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2
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4.17
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-21.32
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PLCV103
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12.7
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-25
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12.97
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2
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3.7
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-26.33
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PLCV104
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12.7
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-30
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15.56
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2
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3.4
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-31.31
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PLCV105
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12.7
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-40
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20.75
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2
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3
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-41.32
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PLCV106
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12.7
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-50
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25.94
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2
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2.79
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-51.33
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PLCV107
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12.7
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-75
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38.9
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2
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2.52
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-76.31
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PLCV108
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12.7
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-100
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51.88
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2
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2.39
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-101.33
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PLCV201
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25.4
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-35
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18.15
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2
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7.18
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-36.32
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PLCV202
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25.4
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-50
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25.94
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2
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5.32
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-51.33
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PLCV203
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25.4
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-70
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36.31
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2
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4.29
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-71.32
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PLCV204
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25.4
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-75
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38.9
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2
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4.13
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-76.31
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PLCV205
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25.4
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-100
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51.88
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2
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3.58
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-101.33
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PLCV206
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25.4
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-125
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64.96
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2
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3.26
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-126.36
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PLCV207
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25.4
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-150
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77.8
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2
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3.04
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-151.3
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PLCV208
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25.4
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-175
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90.78
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2
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2.89
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-176.32
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PLCV209
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25.4
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-200
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103.75
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2
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2.78
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-201.33
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PLCV210
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25.4
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-250
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129.72
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2
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2.62
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-251.39
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PLCV211
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25.4
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-300
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155.6
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2
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2.52
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-301.29
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PLCV212
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25.4
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-500
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259.4
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2
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2.31
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-501.39
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PLCV213
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25.4
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-1000
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518.7
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2
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2.16
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-1001.28
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PLCV301
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30
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-80
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41.5
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2
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4.81
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-81.32
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PLCV302
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30
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-100
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51.88
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2
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4.22
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-101.33
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PLCV303
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30
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-200
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103.75
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2
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3.09
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-201.33
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PLCV304
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38
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-50
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25.94
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2
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10.28
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-51.33
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PLCV305
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38
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-100
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51.88
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2
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5.6
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-101.33
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PLCV306
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38
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-150
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77.8
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2
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4.36
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-151.3
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PLCV307
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38
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-200
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103.75
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2
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3.76
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-201.33
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PLCV308
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38
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-350
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181.55
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2
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3
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-351.31
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PLCV309
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38
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-500
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259.4
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2
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2.7
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-501.39
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PLCV310
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38
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-700
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363.1
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2
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2.5
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-701.31
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PLCV401
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40
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-50
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25.94
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2
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11.42
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-51.33
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PLCV501
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50
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-75
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38.9
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2
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12.1
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-76.97
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PLCV502
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50
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-100
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51.88
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3
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9.42
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-101.99
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PLCV503
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50
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-150
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77.8
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3
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7.13
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-151.96
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PLCV504
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50
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-200
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103.75
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3
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6.06
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-201.99
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PLCV505
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50
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-250
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129.72
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3
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5.43
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-252.05
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PLCV506
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50
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-400
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207
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3
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4.52
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-401.03
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PLCV507
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50
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-500
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259.4
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3
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4.21
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-502.05
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PLCV508
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50
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-600
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311.2
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3
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4.01
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-601.91
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PLCV509
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50
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-800
|
415
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3
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3.75
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-802.02
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Material
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Fused Silica
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PLCV-FS01
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12.7
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-15
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6.92
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2
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6.17
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-16.41
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PLCV-FS02
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12.7
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-20
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9.2
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2
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4.54
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-21.38
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PLCV-FS03
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12.7
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-25
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11.51
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2
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3.91
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-26.38
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PLCV-FS04
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12.7
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-30
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13.8
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2
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3.55
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-31.37
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PLCV-FS05
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12.7
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-40
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18.41
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2
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3.13
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-41.38
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PLCV-FS06
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25.4
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-35
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16.11
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2
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8.2
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-36.36
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PLCV-FS07
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25.4
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-50
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23.01
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2
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5.82
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-51.38
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PLCV-FS08
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25.4
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-75
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34.51
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2
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4.42
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-76.38
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PLCV-FS09
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25.4
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-100
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46.03
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2
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3.79
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-101.42
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PLCV-FS10
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25.4
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-150
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69.02
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2
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3.18
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-151.39
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PLCV-FS11
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25.4
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-175
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80.54
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2
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3.01
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-176.43
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PLCV-FS12
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25.4
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-200
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92.04
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2
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2.88
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-201.42
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PLCV-FS13
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25.4
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-250
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115.08
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2
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2.7
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-251.5
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PLCV-FS14
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25.4
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-300
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138.04
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2
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2.59
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-301.41
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PLCV-FS15
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25.4
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-500
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230.1
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2
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2.35
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-501.5
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PLCV-FS16
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25.4
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-1000
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460.1
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2
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2.18
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-1001.42
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PLCV-FS17
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38
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-50
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23.01
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3
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13.03
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-52.07
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PLCV-FS18
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38
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-100
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46.03
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3
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7.1
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-102.1
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PLCV-FS19
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38
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-150
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69.02
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3
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5.67
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-152.07
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PLCV-FS20
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38
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-200
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92.04
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3
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4.98
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-202.11
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PLCV-FS21
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38
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-350
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161.06
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3
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4.13
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-352.13
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PLCV-FS22
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38
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-500
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230.1
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3
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3.79
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-502.19
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