Biconcave Lenses
• Have negative focal lengths diverge collimated incident light • Form only virtual images which are seen through the lens • Minimize spherical aberration, coma and distortion at unit conjugate ratio These… Read more →
Volume discount
- 5–9 units −5%
- 10+ units −10%
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catalog variants — refine the spec to narrow it down.
| SKU | ROC · ET · CT · Focal Length · Group · Material · Diameter | |
|---|---|---|
| 114-0104E | -13.7 mm·5 mm·3.2 mm·-12.7 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
49 in stock
Ships in: 2–5 calendar days
$24
|
| 114-0106E | -26.3 mm·3.2 mm·2.2 mm·-25 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
12 in stock
Ships in: 2–5 calendar days
$24
|
| 114-0108E | -41.9 mm·3.1 mm·2.4 mm·-40 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
2 in stock
Ships in: 2–5 calendar days
$24
|
| 114-0110E | -52.3 mm·3.1 mm·2.6 mm·-50 mm·BK7·12.7 mm |
Out of stock
Ships in: 58–61 calendar days
$24
|
| 114-0112E | -62.7 mm·3 mm·2.6 mm·-60 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
Out of stock
Ships in: 62–65 calendar days
$24
|
| 114-0114E | -78.3 mm·3 mm·2.7 mm·-75 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
Out of stock
Ships in: 62–65 calendar days
$24
|
| 114-0118E | -104.2 mm·3 mm·2.8 mm·-100 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
3 in stock
Ships in: 2–5 calendar days
$24
|
| 114-0120E | -130.0 mm·2 mm·1.7 mm·-125 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
17 in stock
Ships in: 2–5 calendar days
$23
|
| 114-0124E | -155.9 mm·2 mm·1.8 mm·-150 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
9 in stock
Ships in: 2–5 calendar days
$23
|
| 114-0128E | -207.8 mm·2 mm·1.8 mm·-200 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
18 in stock
Ships in: 2–5 calendar days
$23
|
| 114-0132E | -259.7 mm·2 mm·1.8 mm·-250 mm·BK7, Size: dia 12.7 mm·BK7·12.7 mm |
7 in stock
Ships in: 2–5 calendar days
$23
|
| 114-0204E | -26.7 mm·10.2 mm·4.8 mm·-25 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
17 in stock
Ships in: 2–5 calendar days
$27
|
| 114-0206E | -42.0 mm·6.2 mm·2.7 mm·-40 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
80 in stock
Ships in: 2–5 calendar days
$27
|
| 114-0208E | -52.6 mm·7.5 mm·4.5 mm·-50 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
171 in stock
Ships in: 2–5 calendar days
$27
|
| 114-0210E | 62.7 mm·5.2 mm·2.6 mm·-60 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
70 in stock
Ships in: 2–5 calendar days
$27
|
| 114-0212E | -78.4 mm·5.5 mm·3.7 mm·-75 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
18 in stock
Ships in: 2–5 calendar days
$26
|
| 114-0214E | -104.3 mm·4.6 mm·3.2 mm·-100 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
34 in stock
Ships in: 2–5 calendar days
$25
|
| 114-0218E | -130.2 mm·4.3 mm·3.1 mm·-125 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
15 in stock
Ships in: 2–5 calendar days
$25
|
| 114-0220E | -156.1 mm·4 mm·3 mm·-150 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
24 in stock
Ships in: 2–5 calendar days
$25
|
| 114-0224E | -208.0 mm·3.6 mm·2.8 mm·-200 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
31 in stock
Ships in: 2–5 calendar days
$25
|
| 114-0228E | -259.9 mm·3.5 mm·2.9 mm·-250 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
29 in stock
Ships in: 2–5 calendar days
$25
|
| 114-0234E | -415.5 mm·3.6 mm·3.2 mm·-400 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
37 in stock
Ships in: 2–5 calendar days
$25
|
| 114-0238E | -519.3 mm·3.5 mm·3.2 mm·-500 mm·BK7, Size: dia 25.4 mm·BK7·25.4 mm |
20 in stock
Ships in: 2–5 calendar days
$25
|
| 114-1104E | -12.6 mm·6.7 mm·3.7 mm·-12.7 mm·UVFS, Size: dia 12.7 mm·UVFS·12.7 mm |
Out of stock
Ships in: 62–65 calendar days
$58
|
| 114-1108E | -24.2 mm·4 mm·2.8 mm·-25 mm·UVFS, Size: dia 12.7 mm·UVFS·12.7 mm |
62 in stock
Ships in: 2–5 calendar days
$58
|
| 114-1110E | -29.0 mm·4 mm·3 mm·-30 mm·UVFS, Size: dia 12.7 mm·UVFS·12.7 mm |
10 in stock
Ships in: 2–5 calendar days
$58
|
| 114-1114E | -48.0 mm·3.4 mm·2.6 mm·-50 mm·UVFS, Size: dia 12.7 mm·UVFS·12.7 mm |
10 in stock
Ships in: 2–5 calendar days
$58
|
| 114-1118E | -71.8 mm·3.1 mm·2.7 mm·-75 mm·UVFS, Size: dia 12.7 mm·UVFS·12.7 mm |
24 in stock
Ships in: 2–5 calendar days
$58
|
| 114-1122E | -95.5 mm·3 mm·2.8 mm·-100 mm·UVFS, Size: dia 12.7 mm·UVFS·12.7 mm |
Out of stock
Ships in: 62–65 calendar days
$55
|
| 114-1204E | -24.6 mm·12 mm·5.3 mm·-25 mm·UVFS, Size: dia 25.4 mm·UVFS·25.4 mm |
56 in stock
Ships in: 2–5 calendar days
$84
|
| 114-1205E | -29.0 mm·8.8 mm·3 mm·-30 mm·UVFS, Size: dia 25.4 mm·UVFS·25.4 mm |
10 in stock
Ships in: 2–5 calendar days
$84
|
| 114-1208E | -48.0 mm·6 mm·2.6 mm·-50 mm·UVFS, Size: dia 25.4 mm·UVFS·25.4 mm |
20 in stock
Ships in: 2–5 calendar days
$84
|
| 114-1212E | -71.9 mm·6.1 mm·3.8 mm·-75 mm·UVFS, Size: dia 25.4 mm·UVFS·25.4 mm |
45 in stock
Ships in: 2–5 calendar days
$84
|
| 114-1216E | -95.7 mm·5.3 mm·3.6 mm·-100 mm·UVFS, Size: dia 25.4 mm·UVFS·25.4 mm |
10 in stock
Ships in: 2–5 calendar days
$84
|
| 114-1220E | -143.4 mm·5.3 mm·4.4 mm·-150 mm·UVFS, Size: dia 25.4 mm·UVFS·25.4 mm |
42 in stock
Ships in: 2–5 calendar days
$84
|
| 114-1224E | -190.7 mm·3.8 mm·3 mm·-200 mm·UVFS, Size: dia 25.4 mm·UVFS·25.4 mm |
48 in stock
Ships in: 2–5 calendar days
$82
|
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No catalog variant matches your exact spec. Add it to your cart as a custom item — sales will confirm price and lead time within 1 business day.
Specifications
| Material | BK7, UV FS |
| Surface quality | 40-20 scratch & dig (MIL-PRF-13830B) |
| Clear aperture | 90% of the diameter |
| Diameter tolerance | +0.00, -0.12 mm |
| Thickness tolerance | ±0.2 mm |
| Surface irregularity | λ / 8 @ 633 nm |
| Concentricity | 3 arcmin |
| Paraxial focal length: / BK7 / UV FS | ±2% @ 546 nm / ±2% @ 355 nm |
Description
- Have negative focal lengths diverge collimated incident light
- Form only virtual images which are seen through the lens
- Minimize spherical aberration, coma and distortion at unit conjugate ratio
These lenses are symmetrical with equal radii on both sides. The biconcave lenses are often used to expand light beams or to increase focal lengths in optical systems, and are normally used in combination with other lenses. Among the many devices utilising biconcave lenses are laser beam expanders, optical character readers, viewers and projection systems.
A variety of anti-reflection coatings is available for these lenses. For appropriate coating please refer to the COATINGS section. We can supply custom cutting, edging, coating or complete fabrication if required.
