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 211 to 240 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX214
50.0000
60.0000
55.8000
12.90
2.0000
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L-BCX215
50.0000
63.5000
59.2200
13.2000
3.0000
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L-BCX216
50.0000
75.0000
71.5300
11.00
2.5000
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L-BCX217
50.0000
80.0000
76.9400
9.1000
1.3000
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L-BCX218
50.0000
90.0000
87.1200
8.6000
1.7000
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L-BCX219
50.0000
100.0000
97.6300
8.20
2.0000
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L-BCX220
50.0000
125.0000
122.9500
7.40
2.5000
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L-BCX221
50.0000
150.0000
148.5200
6.10
2.0000
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L-BCX222
17.0000
38.0000
36.9500
3.50
1.6000
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L-BCX223
20.0000
40.0000
38.4800
4.90
2.4000
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L-BCX224
50.0000
250.0000
249.2100
4.90
2.5000
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L-BCX225
50.0000
300.0000
299.5100
4.50
2.5000
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L-BCX226
50.0000
400.0000
400.0100
4.00
2.5000
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L-BCX227
50.0000
500.0000
500.7700
3.20
2.0000
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L-BCX228
50.0000
750.0000
751.4100
3.30
2.5000
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L-BCX229
50.0000
1000.0000
1003.2000
2.60
2.0000
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L-BCX230
50.8000
38.1000
28.5400
25.3600
3.0000
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L-BCX231
50.8000
50.2000
44.1500
17.2700
3.0000
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L-BCX232
50.8000
50.8000
45.1100
16.80
2.8000
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L-BCX234
50.8000
76.2000
72.5900
11.50
2.9000
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L-BCX235
50.8000
88.3000
84.8200
10.3600
3.0000
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L-BCX236
50.8000
125.0000
122.6400
8.09
3.0000
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L-BCX237
50.8000
150.0000
147.8800
7.22
3.0000
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L-BCX238
50.8000
175.0000
173.0400
6.60
3.0000
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L-BCX239
50.8000
250.0000
248.5100
5.51
3.0000
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L-BCX240
50.8000
300.0000
298.2300
5.09
3.0000
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L-BCX241
50.8000
400.0000
398.3800
4.56
3.0000
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L-BCX242
50.8000
500.0000
498.7800
4.25
3.0000
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L-BCX243
50.8000
1000.0000
998.8800
3.62
3.0000
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L-BCX244
60.0000
50.8000
42.4500
23.7000
2.8000
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