BK7 Biconvex Lenses
• Have positive focal lengths • Converge incident light • Form both real and virtual images • Minimize spherical aberration as well as cancel coma and distortion at unit conjugate ratio Biconvex lenses are all… Read more →
Volume discount
- 5–9 units −5%
- 10+ units −10%
Applied in your cart. Quantities of any variant of this product count together.
Configure & order — pick a catalog variant or configure your own
Product
Diameter
12.7 mm - 50.8 mm · 4 values
Any
mm
mm
Center Thickness
2 mm - 15.6 mm · 15 values
Any
mm
mm
Focal Length
12.7 mm - 1500 mm · 20 values
Any
mm
mm
50
catalog variants — refine the spec to narrow it down.
| SKU | Diameter | Center Thickness | Focal Length | Focal Length Wavelength | Power and Irregularity, fringes @633 nm | Coating | |
|---|---|---|---|---|---|---|---|
| 111-0104E | 12.7 mm | 4.8 mm | 12.7 mm | 546 nm | -(0.25) | Uncoated |
43 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0108E | 12.7 mm | 3.5 mm | 25 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$26
|
| 111-0114E | 12.7 mm | 2.5 mm | 40 mm | 546 nm | -(0.25) | Uncoated |
10 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0116E | 12.7 mm | 2.5 mm | 50 mm | 546 nm | -(0.25) | Uncoated |
15 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0118E | 12.7 mm | 2.5 mm | 60 mm | 546 nm | -(0.25) | Uncoated |
7 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0120E | 12.7 mm | 2.5 mm | 75 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$24
|
| 111-0124E | 12.7 mm | 2 mm | 100 mm | 546 nm | -(0.25) | Uncoated |
1 in stock
Ships in: 2–5 calendar days
$24
|
| 111-0128E | 12.7 mm | 2 mm | 125 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$24
|
| 111-0132E | 12.7 mm | 2 mm | 150 mm | 546 nm | -(0.25) | Uncoated |
18 in stock
Ships in: 2–5 calendar days
$24
|
| 111-0136E | 12.7 mm | 2 mm | 200 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$24
|
| 111-0140E | 12.7 mm | 2 mm | 250 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$24
|
| 111-0144E | 12.7 mm | 2 mm | 300 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$24
|
| 111-0148E | 12.7 mm | 2 mm | 400 mm | 546 nm | -(0.25) | Uncoated |
61 in stock
Ships in: 2–5 calendar days
$24
|
| 111-0152E | 12.7 mm | 3 mm | 500 mm | 546 nm | -(0.25) | Uncoated |
115 in stock
Ships in: 2–5 calendar days
$24
|
| 111-0204E | 25.4 mm | 9 mm | 25 mm | 546 nm | -(0.25) | Uncoated |
26 in stock
Ships in: 2–5 calendar days
$30
|
| 111-0206E | 25.4 mm | 7.5 mm | 30 mm | 546 nm | -(0.25) | Uncoated |
28 in stock
Ships in: 2–5 calendar days
$30
|
| 111-0208E | 25.4 mm | 6 mm | 40 mm | 546 nm | -(0.25) | Uncoated |
17 in stock
Ships in: 2–5 calendar days
$30
|
| 111-0210E | 25.4 mm | 6 mm | 50 mm | 546 nm | -(0.25) | Uncoated |
12 in stock
Ships in: 2–5 calendar days
$28
|
| 111-0214E | 25.4 mm | 4 mm | 60 mm | 546 nm | -(0.25) | Uncoated |
16 in stock
Ships in: 2–5 calendar days
$28
|
| 111-0216E | 25.4 mm | 4 mm | 75 mm | 546 nm | -(0.25) | Uncoated |
20 in stock
Ships in: 2–5 calendar days
$28
|
| 111-0218E | 25.4 mm | 4 mm | 100 mm | 546 nm | -(0.25) | Uncoated |
20 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0222E | 25.4 mm | 4 mm | 150 mm | 546 nm | -(0.25) | Uncoated |
18 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0226E | 25.4 mm | 4 mm | 200 mm | 546 nm | -(0.25) | Uncoated |
1 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0228E | 25.4 mm | 4 mm | 250 mm | 546 nm | -(0.25) | Uncoated |
19 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0229E | 25.4 mm | 4 mm | 300 mm | 546 nm | -(0.25) | Uncoated |
27 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0234E | 25.4 mm | 4 mm | 500 mm | 546 nm | -(0.25) | Uncoated |
36 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0240E | 25.4 mm | 4 mm | 700 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$26
|
| 111-0250E | 25.4 mm | 4 mm | 1000 mm | 546 nm | -(0.25) | Uncoated |
53 in stock
Ships in: 2–5 calendar days
$26
|
| 111-0404E | 38.1 mm | 10.5 mm | 50 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$45
|
| 111-0410E | 38.1 mm | 6 mm | 100 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$45
|
| 111-0414E | 38.1 mm | 5 mm | 150 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 58–61 calendar days
$45
|
| 111-0418E | 38.1 mm | 5 mm | 200 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$45
|
| 111-0422E | 38.1 mm | 5 mm | 250 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 58–61 calendar days
$45
|
| 111-0426E | 38.1 mm | 5 mm | 300 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$45
|
| 111-0430E | 38.1 mm | 5 mm | 400 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 58–61 calendar days
$45
|
| 111-0434E | 38.1 mm | 5 mm | 500 mm | 546 nm | -(0.25) | Uncoated |
7 in stock
Ships in: 2–5 calendar days
$45
|
| 111-0440E | 38.1 mm | 5 mm | 700 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 58–61 calendar days
$45
|
| 111-0450E | 38.1 mm | 5 mm | 1000 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$45
|
| 111-0504E | 50.8 mm | 15.6 mm | 50 mm | 546 nm | -(0.25) | Uncoated |
15 in stock
Ships in: 2–5 calendar days
$62
|
| 111-0508E | 50.8 mm | 10 mm | 75 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$58
|
| 111-0510E | 50.8 mm | 8.5 mm | 100 mm | 546 nm | -(0.25) | Uncoated |
2 in stock
Ships in: 2–5 calendar days
$58
|
| 111-0512E | 50.8 mm | 6.1 mm | 150 mm | 546 nm | -(0.25) | Uncoated |
3 in stock
Ships in: 2–5 calendar days
$57
|
| 111-0514E | 50.8 mm | 5 mm | 200 mm | 546 nm | -(0.25) | Uncoated |
7 in stock
Ships in: 2–5 calendar days
$57
|
| 111-0518E | 50.8 mm | 5 mm | 300 mm | 546 nm | -(0.25) | Uncoated |
13 in stock
Ships in: 2–5 calendar days
$57
|
| 111-0522E | 50.8 mm | 5 mm | 400 mm | 546 nm | -(0.25) | Uncoated |
2 in stock
Ships in: 2–5 calendar days
$57
|
| 111-0526E | 50.8 mm | 5 mm | 500 mm | 546 nm | -(0.25) | Uncoated |
1 in stock
Ships in: 2–5 calendar days
$57
|
| 111-0534E | 50.8 mm | 5 mm | 750 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$57
|
| 111-0544E | 50.8 mm | 5 mm | 1000 mm | 546 nm | -(0.25) | Uncoated |
8 in stock
Ships in: 2–5 calendar days
$57
|
| 111-0550E | 50.8 mm | 5 mm | 1200 mm | 546 nm | -(0.25) | Uncoated |
2 in stock
Ships in: 2–5 calendar days
$57
|
| 111-0555E | 50.8 mm | 5 mm | 1500 mm | 546 nm | -(0.25) | Uncoated |
Out of stock
Ships in: 62–65 calendar days
$57
|
We can make this for you
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
| Shape Type | Round |
| Diameter Upper Tolerance | 0 mm |
| Diameter Lower Tolerance | -0.12 mm |
| Center Thickness Upper Tolerance | 0.2 mm |
| Center Thickness Lower Tolerance | -0.2 mm |
| Edge Thickness Upper Tolerance | 0.2 mm |
| Edge Thickness Lower Tolerance | -0.2 mm |
| Focal Length tolerance %, +/- | 2 % |
| Focal Length Wavelength | 546 nm |
| Material Type | BK7 |
| Material | BK7 |
Surface 1
| Surface Shape | Convex |
| Surface quality, grind or polish | Polished |
| Power and Irregularity, fringes @633 nm | -(0.25) |
| Centration, angle | 0 deg 0 min 0 sec - 0 deg 3 min 0 sec |
| Clear Aperture, % | 90 % - 100 % |
Surface 1, Wavelength 1
| Coating | Uncoated |
Surface 2
| Surface Shape | Convex |
| Surface quality, grind or polish | Polished |
| Power and Irregularity, fringes @633 nm | -(0.25) |
| Clear Aperture, % | 90 % - 100 % |
Surface 2, Wavelength 1
| Coating | Uncoated |
Description
- Have positive focal lengths
- Converge incident light
- Form both real and virtual images
- Minimize spherical aberration as well as cancel coma and distortion at unit conjugate ratio
Biconvex lenses are all symmetrical, having equal radii on both sides. They are recommended for virtual imaging of real objects, and for positive conjugate ratios from 0.2 up to 5. Outside of this ratios range plano-convex lenses are usually more suitable. Biconvex lenses are used as magnifiers, objectives, some condensing systems.
Since both surfaces contribute to the power of biconvex lenses, they have shorter focal lengths than plano-convex lenses of equal diameter and surface radius. Lenses may be anti-reflection coated.
For required coating please refer to the Coatings section of the Optical Components catalog. We can supply custom cutting, edging, coating or complete fabrication if required.
