Plano-Concave Lenses

Plano-Concave Lenses

A plano-concave lens is a versatile optical element that has a negative focal length. Unlike other lenses that converge light rays and focus them to a single point, plano-concave lenses diverge light rays, dispersing them in different directions. This characteristic of plano-concave lenses allows them to be used in beam expanders, projection systems, and more.

In addition to beam expanders and projection systems, the plano-concave lens offers a range of other applications. In optical instruments, it is often used to collimate light sources. Collimation is the process of aligning parallel rays of light. By employing a flat-concave lens, it diverges the incident light to produce a parallel output that enables precise measurements in devices such as spectrometers, optical sensors, and astronomical telescopes.


CLZ Optical Co., Ltd. stocks plano-concave lenses ranging from 10mm to 250mm in diameter with a full range of focal lengths to meet your needs. We can also customize optical components to meet your requirements using a variety of optical materials, such as optical glass, fused silica, silicon.

Please contact our sales team.

For a quote on your custom requirements please send us your drawing or specification.

CUSTOM OPTIONS >

CUSTOM COATING OPTIONS >

EDGING & BLACKEN OPTION >

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Materials:                 Optical glass, Fused Silica and Silicon

Dimensions:            Diameters 10mm to 250mm

Edge Finish:             Blackened

Surfaces:                  80-50 to 20-10 Scratch dig

Centration:               To 30 seconds

Irregularity:              To 1/10 waves

Coating Options:     Single & multi layer AR coatings


-Single layer magnesium fluoride coating

-Broadband anti-reflection (BBAR)

-Single wavelength AR coating (V-coating)

-Dual-band AR coating (W-coating)


We can modifying diameter of lenses and blacking edge in stock optics to meet your requriments.

This can achieve:

The stock optics diameter from large to small and tighter diameter tolerance.

Coated Area is a continuous coating  extending to the edges of the optical component. (Edge after coating)

Edge-blackened lenses, or inked lenses, minimize the stray light within an optical system.


Please contact us for discount pricing for stock parts over 10+ and volume/OEM quantities

Type No. Data sheet MaterialDiameter (mm)CoatingEFL (mm)BFL (mm)CT (mm)

Now Shopping by

EFL (mm)

1 2000

Diameter (mm)

1 200

Material

BK7 or equivalent
UVFS
H-F4
H-K51

Coating

Uncoated
MgF2@550nm
Ravg<0.5%@400-700nm