Our uncoated precision polished aspheric lenses are computer-optimized to achieve diffraction limited optical performance over high numerical apertures without requiring multiple elements. This may be used to reduce weight, complexity and cost for optical systems.
| Compare | Model | Drawings, CAD & Specs | Availability | Price | |||
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KPA10 Polished Aspheric Lens, Plano-Convex, L-BAL35, 15 mm, 22.5 mm EFL, Uncoated |
In Stock
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$347 |
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KPA11 Polished Aspheric Lens, Plano-Convex, L-BAL35, 15 mm, 18.75 mm EFL, Uncoated |
In Stock
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$347 |
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KPA12 Polished Aspheric Lens, Plano-Convex, L-BAL35, 15 mm, 15.0 mm EFL, Uncoated |
In Stock
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$359 |
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KPA13 Polished Aspheric Lens, Plano-Convex, L-BAL35, 15.00 mm, 11.25 mm EFL, Uncoated |
7 Weeks
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$367 |
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KPA14 Polished Aspheric Lens, Bi-Convex, L-BAL35, 20 mm, 20.0 mm EFL, Uncoated |
In Stock
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$389 |
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KPA15 Polished Aspheric Lens, Bi-Convex, L-BAL35, 20 mm, 15.0 mm EFL, Uncoated |
In Stock
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$411 |
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KPA16 Polished Aspheric Lens, Plano-Convex, L-BAL35, 25 mm, 37.5 mm EFL, Uncoated |
In Stock
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$395 |
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KPA17 Polished Aspheric Lens, Plano-Convex, L-BAL35, 25 mm, 31.25 mm EFL, Uncoated |
In Stock
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$397 |
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KPA18 Polished Aspheric Lens, Plano-Convex, L-BAL35, 25 mm, 25.0 mm EFL, Uncoated |
In Stock
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$417 |
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KPA19 Polished Aspheric Lens, Plano-Convex, L-BAL35, 25 mm, 18.75 mm EFL, Uncoated |
In Stock
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$433 |
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KPA20 Polished Aspheric Lens, Bi-Convex, L-BAL35, 30 mm, 30.0 mm EFL, Uncoated |
In Stock
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$506 |
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KPA21 Polished Aspheric Lens, Bi-Convex, L-BAL35, 30 mm, 22.5 mm EFL, Uncoated |
In Stock
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$529 |
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KPA22 Polished Aspheric Lens, Bi-Convex, L-BAL35, 40 mm, 40.0 mm EFL, Uncoated |
In Stock
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$640 |
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KPA23 Polished Aspheric Lens, Bi-Convex, L-BAL35, 40 mm, 30.0 mm EFL, Uncoated |
In Stock
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$662 |
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KPA24 Polished Aspheric Lens, Bi-Convex, L-BAL35, 50 mm, 50.0 mm EFL, Uncoated |
In Stock
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$772 |
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KPA25 Polished Aspheric Lens, Bi-Convex, L-BAL35, 50 mm, 37.5 mm EFL, Uncoated |
In Stock
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$836 |
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In applications that require large acceptance angles, such as light gathering for illumination, spherical lenses are unsuitable due to spherical aberration, or the effect of refractive power of a spherical surface becoming greater with increasing aperture. Aspheric lenses maintain constant focal length or very high NA, avoiding the need for multiple elements to correct spherical aberration. This simplifies system design by reducing weight and component count. It also results in less transmission loss, and less ghosting due to having fewer surfaces. The primary drawback of aspheric lenses is off-axis performance is poor. This is not a problem for coupling to and from optical fibers or collimating light sources, but aspheric lenses are not usable over a wide field of view.
Our Precision Aspheric Lenses have diffraction limited performance on axis, and are available in a range of high numerical apertures. They are ideal for applications such as coupling light into and out of optical fibers, efficiently collecting output from optical sources, or focusing beams onto small high speed detectors.
We offer a full range of optical lens mounts to meet various experimental requirements. Below lists the recommended mounts for spherical lenses of standard sizes. Please see our Lens Mount Guide for additional information.
Note: besides the diameter, please check the Edge Thickness (Te) specification of the lens and the lens mount to ensure compatibility before purchasing.
| Lens Diameter |  A-Line™ Lens Mounts |
 LT Series Lens Tubes |
 LP Series Lens Positioners |
 Optics Cage Plus Series |
|---|---|---|---|---|
| 76.2 mm | ( |
N/A | N/A | N/A |
| 50.8 mm | ( |
N/A | ||
| 38.1 mm | ( |
LT20 lens tube with |
LP-2 lens positioner with |
N/A |
| 25.4 mm | ( |
|||
| 12.7 mm | ( |
N/A | ||
| 6.35 mm | LT05 lens tube with |
LP-05 lens positioner with |
N/A |
For non-standard sizes not listed above, check out our variable size lens mounts.
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