Bi-Convex_Lens.jpg

Bi-Convex Lens

Bi-convex lenses have a positive focal length. Our catalog bi-convex lenses have an identical curvature on both sides of the lens and are therefore symmetric. At unit conjugation, coma and distortion cancel out due to the symmetry. They can be used to focus incoming light.

 

Below are our standard specifications. 
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Diameter Dia. Tolerance CT Tolerance Centering Irregularity Surface Quality Bevel
3.00-6.00 +0.00 / -0.10 ±0.1 < 3 minutes 0.5 Waves 40-20 0.25 x 45°
6.00-25.00 +0.00 / -0.10 ±0.1 < 3 minutes 0.5 Waves 40-20 0.25 x 45°
25.01 - 50.00 +0.00 / -0.10 ±0.1 < 3 minutes 0.5 Waves 60-40 0.50 x 45°
50.01-100.00 +0.00 / -0.10 ±0.1 < 3 minutes 0.5 Waves 60-40 0.50 x 45°
100.01-150.00 +0.05 / -0.10 ±0.2 3 - 5 arc min. 1Waves 80-50 1.00 x 45°
Dimensions MM
Clear Aperture CA >= 90% of Diameter
Coating Uncoated, Specify your coating (See Coating Chart for Available Options)
Design Wavelength 587.6nm
Focal Length Tolerance ±2%
Edge Thickness Reference
* All dimensions are in mm

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Viewing 241 to 270 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX245
60.0000
70.0000
64.6200
16.4000
2.8000
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L-BCX246
60.0000
75.0000
70.0400
14.6000
2.2000
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L-BCX247
60.0000
100.0000
96.3900
10.8000
1.8000
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L-BCX248
60.0000
150.0000
147.2800
8.2000
2.4000
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L-BCX249
60.0000
175.0000
172.6100
7.2000
2.2000
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L-BCX250
63.5000
101.6000
97.6200
12.90
2.9000
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L-BCX251
66.0000
150.0000
147.1900
10.1000
2.9000
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L-BCX252
75.0000
75.0000
66.8300
24.10
3.5000
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L-BCX253
75.0000
100.0000
94.1700
18.10
3.6000
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L-BCX254
75.0000
125.0000
150.4000
14.9000
3.6000
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L-BCX255
75.0000
150.0000
146.4600
12.20
2.9000
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L-BCX256
75.0000
175.0000
171.6700
10.0000
2.2000
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L-BCX257
75.0000
200.0000
197.4900
9.80
2.9000
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L-BCX258
75.0000
250.0000
248.1600
8.40
2.9000
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L-BCX259
75.0000
350.0000
348.7200
7.40
3.5000
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L-BCX260
75.0000
500.0000
499.6200
6.20
3.5000
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L-BCX261
75.0000
750.0000
750.7500
5.30
3.5000
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L-BCX263
80.0000
500.0000
499.7700
6.10
3.0000
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L-BCX264
76.2000
150.0000
145.7800
12.64
3.0000
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L-BCX265
76.2000
300.0000
297.8000
7.71
3.0000
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L-BCX266
76.2000
400.0000
398.0500
6.52
3.0000
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L-BCX267
75.0000
1000.0000
1001.7200
4.90
3.5000
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L-BCX268
76.2000
100.0000
93.8700
18.05
3.0000
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L-BCX269
95.0000
150.0000
144.5000
18.0000
2.8000
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L-BCX270
100.0000
100.0000
88.8900
32.70
5.2000
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L-BCX271
100.0000
125.0000
116.5200
26.00
5.1000
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L-BCX272
100.0000
150.0000
143.5300
20.80
3.9000
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L-BCX273
100.0000
175.0000
169.5300
18.20
3.9000
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L-BCX274
100.0000
200.0000
195.2900
16.30
3.9000
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L-BCX275
100.0000
250.0000
246.3700
13.70
3.9000
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