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 151 to 180 (284 Total)
Sort by:
Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX152
31.0000
50.0000
47.8900
6.8000
1.9000
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L-BCX153
31.7000
38.1000
35.1800
8.90
2.0000
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L-BCX154
32.0000
54.0000
51.9400
6.70
1.9000
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L-BCX155
35.0000
65.0000
62.9900
6.7000
2.0000
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L-BCX156
35.0000
70.0000
67.5100
7.5000
3.1000
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L-BCX157
35.0000
110.0000
108.8500
4.70
2.0000
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L-BCX158
35.0000
31.7000
27.2300
12.9000
1.9000
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L-BCX159
38.0000
40.0000
36.0400
11.8000
2.0000
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L-BCX160
38.0000
45.0000
41.5900
10.4000
2.0000
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L-BCX161
38.0000
50.0000
46.9300
9.5000
2.0000
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L-BCX162
38.0000
75.0000
72.9700
6.8000
2.0000
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L-BCX163
38.0000
100.0000
98.5000
5.5000
2.0000
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L-BCX164
38.0000
125.0000
123.8200
4.8000
2.0000
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L-BCX165
38.0000
150.0000
149.0400
4.4000
2.1000
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L-BCX166
38.0000
200.0000
199.4100
3.8000
2.1000
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L-BCX167
38.0000
250.0000
249.7100
3.4000
2.0000
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L-BCX168
38.0000
500.0000
500.7800
2.7000
2.0000
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L-BCX169
38.0000
750.0000
751.6800
2.5000
2.0000
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L-BCX170
38.1000
38.1000
33.3200
13.6000
3.0000
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L-BCX171
38.1000
38.1000
33.9000
12.40
1.9000
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L-BCX172
38.1000
50.2000
46.6000
10.53
3.0000
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L-BCX173
38.1000
50.8000
47.8200
9.30
1.9000
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L-BCX174
38.1000
62.9000
59.9200
8.8500
3.0000
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L-BCX175
38.1000
75.6000
72.9800
7.8000
3.0000
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L-BCX176
38.1000
76.2000
74.2400
6.70
2.0000
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L-BCX177
38.1000
88.3000
86.1500
7.0700
3.0000
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L-BCX178
38.1000
100.0000
97.5700
6.58
3.0000
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L-BCX179
38.1000
101.6000
100.1500
5.5000
2.0000
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L-BCX180
38.1000
125.0000
123.0200
5.84
3.0000
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L-BCX181
38.1000
150.0000
148.1900
5.36
3.0000
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