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 181 to 210 (284 Total)
Sort by:
Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX182
38.1000
175.0000
173.3000
5.02
3.0000
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L-BCX183
38.1000
200.0000
198.6100
4.76
3.0000
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L-BCX184
38.1000
250.0000
248.6900
4.41
3.0000
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L-BCX185
38.1000
300.0000
298.3800
4.17
3.0000
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L-BCX186
38.1000
400.0000
398.9300
3.88
3.0000
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L-BCX187
38.1000
500.0000
498.8700
3.70
3.0000
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L-BCX188
38.1000
1000.0000
998.9300
3.35
3.0000
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L-BCX189
40.0000
50.0000
47.2500
9.80
1.6000
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L-BCX190
40.0000
60.0000
57.1000
8.80
2.0000
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L-BCX191
40.0000
80.0000
78.2800
8.00
3.1000
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L-BCX192
40.0000
63.5000
60.9400
8.3000
1.9000
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L-BCX194
40.0000
100.0000
98.2000
5.40
1.5000
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L-BCX195
40.0000
125.0000
123.7700
5.10
2.0000
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L-BCX196
40.0000
200.0000
199.8600
8.00
6.1000
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L-BCX197
42.0000
500.0000
500.8300
2.8000
2.0000
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L-BCX198
42.0000
65.0000
62.2700
8.8000
1.9000
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L-BCX199
42.0000
70.0000
67.4700
8.3000
2.0000
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L-BCX201
42.0000
100.0000
98.2700
6.3000
2.0000
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L-BCX202
42.0000
150.0000
148.9700
4.80
1.9000
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L-BCX203
42.0000
200.0000
199.3800
4.1000
2.0000
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L-BCX204
42.0000
250.0000
249.7100
3.7000
2.0000
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L-BCX205
42.0000
300.0000
300.0000
3.4000
2.0000
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L-BCX206
42.0000
400.0000
400.4400
3.1000
2.0000
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L-BCX207
42.0000
600.0000
601.2300
2.7000
2.0000
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L-BCX208
42.0000
1000.0000
1003.2300
2.4000
2.0000
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L-BCX209
42.0000
2000.0000
2006.8900
2.2000
2.0000
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L-BCX210
47.0000
80.0000
77.3000
8.9000
2.0000
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L-BCX211
47.0000
600.0000
601.2000
2.9000
2.0000
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L-BCX212
47.0000
1000.0000
1003.2100
2.5000
2.0000
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L-BCX213
50.0000
50.0000
44.4600
16.30
2.6000
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