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-BCX232
50.8000
50.8000
45.1100
16.80
2.8000
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L-BCX245
60.0000
70.0000
64.6200
16.4000
2.8000
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L-BCX213
50.0000
50.0000
44.4600
16.30
2.6000
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L-BCX274
100.0000
200.0000
195.2900
16.30
3.9000
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L-BCX254
75.0000
125.0000
150.4000
14.9000
3.6000
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L-BCX126
25.4000
19.0000
13.2900
14.7200
3.0000
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L-BCX246
60.0000
75.0000
70.0400
14.6000
2.2000
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L-BCX275
100.0000
250.0000
246.3700
13.70
3.9000
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L-BCX170
38.1000
38.1000
33.3200
13.6000
3.0000
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L-BCX215
50.0000
63.5000
59.2200
13.2000
3.0000
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L-BCX041
35.0000
60.0000
55.7900
12.90
7.7000
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L-BCX214
50.0000
60.0000
55.8000
12.90
2.0000
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L-BCX250
63.5000
101.6000
97.6200
12.90
2.9000
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L-BCX038
32.1000
60.0000
55.7900
12.9000
8.5000
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L-BCX158
35.0000
31.7000
27.2300
12.9000
1.9000
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L-BCX264
76.2000
150.0000
145.7800
12.64
3.0000
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L-BCX171
38.1000
38.1000
33.9000
12.40
1.9000
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L-BCX255
75.0000
150.0000
146.4600
12.20
2.9000
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L-BCX276
100.0000
350.0000
347.1900
12.00
5.0000
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L-BCX159
38.0000
40.0000
36.0400
11.8000
2.0000
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L-BCX282
50.8000
75.6000
71.6400
11.7200
3.0000
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L-BCX234
50.8000
76.2000
72.5900
11.50
2.9000
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L-BCX216
50.0000
75.0000
71.5300
11.00
2.5000
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L-BCX247
60.0000
100.0000
96.3900
10.8000
1.8000
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L-BCX172
38.1000
50.2000
46.6000
10.53
3.0000
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L-BCX160
38.0000
45.0000
41.5900
10.4000
2.0000
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L-BCX235
50.8000
88.3000
84.8200
10.3600
3.0000
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L-BCX140
30.0000
30.0000
26.5000
10.30
2.0000
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L-BCX030
25.4000
25.4000
21.8100
10.13
3.0000
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L-BCX251
66.0000
150.0000
147.1900
10.1000
2.9000
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