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 271 to 284 (284 Total)
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Part Number
Diameter
Effective Focal Length
Back Focal Length
Center Thickness
Edge Thickness
L-BCX276
100.0000
350.0000
347.1900
12.00
5.0000
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L-BCX277
100.0000
750.0000
749.7900
8.20
5.0000
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L-BCX278
12.5000
20.0000
18.8800
3.50
1.5000
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L-BCX279
12.7000
38.1000
36.7400
4.05
3.0000
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L-BCX280
25.0000
63.5000
62.3700
3.4000
1.0000
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L-BCX281
9.0000
18.0000
17.1200
2.60
1.5000
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L-BCX282
50.8000
75.6000
71.6400
11.7200
3.0000
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L-BCX283
76.2000
500.0000
498.5200
5.81
3.0000
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L-BCX284
100.0000
500.0000
498.3900
9.90
5.1000
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L-BCX522
18.0000
60.0000
58.6000
4.7000
3.4000
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L-BCX523
22.4000
40.0000
38.4300
5.10
2.0000
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L-BCX524
22.4000
60.0000
58.8700
4.1000
2.1000
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L-BCX724
22.4000
200.0000
199.8800
2.60
2.0000
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L-BCX843
25.4000
250.0000
248.8200
3.63
3.0000
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