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 121 to 150 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX147
30.0000
100.0000
98.9700
4.20
2.0000
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L-BCX080
15.0000
22.5000
21.2900
4.2000
2.5000
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L-BCX185
38.1000
300.0000
298.3800
4.17
3.0000
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L-BCX114
25.0000
60.0000
58.8300
4.10
1.5000
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L-BCX079
15.0000
19.0000
17.6000
4.1000
1.0000
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L-BCX203
42.0000
200.0000
199.3800
4.1000
2.0000
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L-BCX524
22.4000
60.0000
58.8700
4.1000
2.1000
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L-BCX279
12.7000
38.1000
36.7400
4.05
3.0000
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L-BCX134
25.4000
150.0000
148.4100
4.04
3.0000
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L-BCX049
12.0000
24.0000
22.9300
4.00
2.5000
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L-BCX081
15.0000
30.0000
28.8300
4.00
2.1000
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L-BCX115
25.0000
75.0000
73.9500
4.00
2.0000
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L-BCX226
50.0000
400.0000
400.0100
4.00
2.5000
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L-BCX270
100.0000
100.0000
88.8900
32.70
5.2000
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L-BCX135
25.4000
175.0000
173.4900
3.89
3.0000
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L-BCX186
38.1000
400.0000
398.9300
3.88
3.0000
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L-BCX046
12.0000
12.0000
14.1800
3.8500
1.4000
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L-BCX020
6.3500
12.7000
11.3700
3.82
3.0000
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L-BCX088
18.0000
35.0000
33.8400
3.80
1.5000
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L-BCX037
9.2000
9.3000
7.9500
3.8000
1.3000
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L-BCX131
25.4000
88.9000
87.9700
3.8000
2.0000
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L-BCX166
38.0000
200.0000
199.4100
3.8000
2.1000
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L-BCX015
12.7000
50.2000
48.9300
3.79
3.0000
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L-BCX136
25.4000
200.0000
198.7800
3.78
3.0000
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L-BCX050
12.0000
30.0000
28.7500
3.70
2.5000
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L-BCX187
38.1000
500.0000
498.8700
3.70
3.0000
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L-BCX204
42.0000
250.0000
249.7100
3.7000
2.0000
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L-BCX843
25.4000
250.0000
248.8200
3.63
3.0000
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L-BCX074
12.7000
62.9000
61.5300
3.6200
3.0000
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L-BCX243
50.8000
1000.0000
998.8800
3.62
3.0000
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