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 61 to 90 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX084
17.5000
18.0000
15.8700
6.10
1.5000
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L-BCX100
20.0000
25.4000
23.4000
6.10
2.0000
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L-BCX221
50.0000
150.0000
148.5200
6.10
2.0000
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L-BCX263
80.0000
500.0000
499.7700
6.10
3.0000
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L-BCX109
25.0000
38.1000
36.0700
6.00
1.9000
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L-BCX143
30.0000
63.5000
61.4900
6.0000
2.5000
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L-BCX016
14.5000
15.0000
12.9600
5.90
2.0000
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L-BCX112
25.0000
40.0000
38.1500
5.90
1.9000
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L-BCX085
18.0000
20.0000
18.0200
5.9000
1.5000
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L-BCX180
38.1000
125.0000
123.0200
5.84
3.0000
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L-BCX283
76.2000
500.0000
498.5200
5.81
3.0000
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L-BCX128
25.4000
62.9000
61.2100
5.5400
3.0000
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L-BCX239
50.8000
250.0000
248.5100
5.51
3.0000
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L-BCX087
18.0000
27.0000
25.2600
5.50
2.4000
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L-BCX163
38.0000
100.0000
98.5000
5.5000
2.0000
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L-BCX179
38.1000
101.6000
100.1500
5.5000
2.0000
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L-BCX194
40.0000
100.0000
98.2000
5.40
1.5000
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L-BCX181
38.1000
150.0000
148.1900
5.36
3.0000
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L-BCX022
20.0000
31.0000
29.3100
5.30
2.0000
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L-BCX261
75.0000
750.0000
750.7500
5.30
3.5000
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L-BCX071
12.7000
19.0000
17.1900
5.2200
3.0000
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L-BCX144
30.0000
70.0000
68.5300
5.2000
2.0000
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L-BCX523
22.4000
40.0000
38.4300
5.10
2.0000
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L-BCX025
25.0000
50.0000
48.4700
5.10
2.0000
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L-BCX129
25.4000
75.6000
74.0700
5.10
3.0000
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L-BCX195
40.0000
125.0000
123.7700
5.10
2.0000
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L-BCX240
50.8000
300.0000
298.2300
5.09
3.0000
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L-BCX182
38.1000
175.0000
173.3000
5.02
3.0000
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L-BCX013
12.5000
14.2000
12.4900
5.00
2.0000
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L-BCX099
20.0000
25.0000
23.3000
5.0000
0.9000
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