N-BK7 & Fused Silica & CaF2 Plano Concave Lens

Plano Concave Lens

Crysmit have more than 10 years of experience in lens manufacturing, design, and optical precision assembly. CRYSMIT provide these lenses with the material of N-BK7, fused silica, sapphire, CaF2, and other glass raw material.
A Plano Concave Lens is a simple optical lens with one flat (plano) and one concave surface. Its primary function is to diverge, or spread out, light rays. They form virtual images and have a negative focal length, indicating they diverge light rather than focusing it. These lenses can also reduce the spherical aberration caused by other lenses.

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CAF2 Spherical Lenses

UVFS Spherical Lenses

N-BK7 Spherical Lenses

Overview

Part NO.

Material

Construction

Diameter

Thickness

Flatness

EFFL(587.6nm)

Coated

Delivery

Price

Add to CART

Part NO.	Material	Construction	Diameter	Thickness	Flatness	EFFL(587.6nm)	Coated	Delivery	Price	Add to CART
UV Fused Silica PCV Lenses U01	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-25 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U02	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-50 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U03	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-60 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U04	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-75 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U05	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-80 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U06	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-90 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U07	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-100 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U08	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-125 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U09	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-150 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U10	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-175 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U11	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-200 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U12	UVFS	Plano-Concave	12.7 mm	3 mm	λ/8	-250 mm	Uncoated	1 Weeks	$30
UV Fused Silica PCV Lenses U13	UVFS	Plano-Concave	25.4 mm	9.3 mm	λ/8	-30 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U14	UVFS	Plano-Concave	25.4 mm	5.5 mm	λ/8	-50 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U15	UVFS	Plano-Concave	25.4 mm	5.4 mm	λ/8	-75 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U16	UVFS	Plano-Concave	25.4 mm	4.7 mm	λ/8	-100 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U17	UVFS	Plano-Concave	25.4 mm	4.4 mm	λ/8	-125 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U18	UVFS	Plano-Concave	25.4 mm	4.2 mm	λ/8	-150 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U19	UVFS	Plano-Concave	25.4 mm	4 mm	λ/8	-200 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U20	UVFS	Plano-Concave	25.4 mm	4 mm	λ/8	-250 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U21	UVFS	Plano-Concave	25.4 mm	4 mm	λ/8	-300 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U22	UVFS	Plano-Concave	25.4 mm	4 mm	λ/8	-400 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U23	UVFS	Plano-Concave	25.4 mm	4 mm	λ/8	-500 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U24	UVFS	Plano-Concave	25.4 mm	4 mm	λ/8	-750 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U25	UVFS	Plano-Concave	25.4 mm	4 mm	λ/8	-1000 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U26	UVFS	Plano-Concave	25.4 mm	4 mm	λ/8	-2000 mm	Uncoated	1 Weeks	$40
UV Fused Silica PCV Lenses U27	UVFS	Plano-Concave	25.4 mm	2 mm	λ/8	-5000 mm	Uncoated	1 Weeks	$50
UV Fused Silica PCV Lenses U28	UVFS	Plano-Concave	38.1 mm	6.4 mm	λ/8	-100 mm	Uncoated	1 Weeks	$50
UV Fused Silica PCV Lenses U29	UVFS	Plano-Concave	38.1 mm	5.5 mm	λ/8	-150 mm	Uncoated	1 Weeks	$50
UV Fused Silica PCV Lenses U30	UVFS	Plano-Concave	38.1 mm	4.9 mm	λ/8	-200 mm	Uncoated	1 Weeks	$50
UV Fused Silica PCV Lenses U31	UVFS	Plano-Concave	38.1 mm	5.6 mm	λ/8	-300 mm	Uncoated	1 Weeks	$50
UV Fused Silica PCV Lenses U32	UVFS	Plano-Concave	50.8 mm	11.9 mm	λ/8	-100 mm	Uncoated	1 Weeks	$60
UV Fused Silica PCV Lenses U33	UVFS	Plano-Concave	50.8 mm	7.9 mm	λ/8	-150 mm	Uncoated	1 Weeks	$60
UV Fused Silica PCV Lenses U34	UVFS	Plano-Concave	50.8 mm	5.7 mm	λ/8	-250 mm	Uncoated	1 Weeks	$60
UV Fused Silica PCV Lenses U35	UVFS	Plano-Concave	50.8 mm	5.8 mm	λ/8	-300 mm	Uncoated	1 Weeks	$60
UV Fused Silica PCV Lenses U36	UVFS	Plano-Concave	50.8 mm	6 mm	λ/8	-500 mm	Uncoated	1 Weeks	$60
UV Fused Silica PCV Lenses U37	UVFS	Plano-Concave	50.8 mm	6 mm	λ/8	-2000 mm	Uncoated	1 Weeks	$60

Part NO.

Material

Construction

Diameter

Thickness

Flatness

EFFL(587.6nm)

Coated

Delivery

Price

Add to CART

Part NO.	Material	Construction	Diameter	Thickness	Flatness	EFFL(587.6nm)	Coated	Delivery	Price	Add to CART
N-BK7 PCV Spherical Lenses B01	N-BK7	Plano-Concave	12.7 mm	3.5 mm	λ/8	-25 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B02	N-BK7	Plano-Concave	12.7 mm	3.5 mm	λ/8	-50 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B03	N-BK7	Plano-Concave	12.7 mm	3.1 mm	λ/8	-60 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B04	N-BK7	Plano-Concave	12.7 mm	3.4 mm	λ/8	-75 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B05	N-BK7	Plano-Concave	12.7 mm	3.4 mm	λ/8	-100 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B06	N-BK7	Plano-Concave	12.7 mm	3.4 mm	λ/8	-125 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B07	N-BK7	Plano-Concave	12.7 mm	3.5 mm	λ/8	-150 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B08	N-BK7	Plano-Concave	12.7 mm	3.5 mm	λ/8	-200 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B09	N-BK7	Plano-Concave	12.7 mm	3.5 mm	λ/8	-250 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B10	N-BK7	Plano-Concave	12.7 mm	3 mm	λ/8	-300 mm	Uncoated	1 Weeks	$20
N-BK7 PCV Spherical Lenses B11	N-BK7	Plano-Concave	25.4 mm	7.9 mm	λ/8	-30 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B12	N-BK7	Plano-Concave	25.4 mm	6 mm	λ/8	-40 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B13	N-BK7	Plano-Concave	25.4 mm	6 mm	λ/8	-50 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B14	N-BK7	Plano-Concave	25.4 mm	5 mm	λ/8	-75 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B15	N-BK7	Plano-Concave	25.4 mm	4.7 mm	λ/8	-100 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B16	N-BK7	Plano-Concave	25.4 mm	4.3 mm	λ/8	-125 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B17	N-BK7	Plano-Concave	25.4 mm	3.7 mm	λ/8	-150 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B18	N-BK7	Plano-Concave	25.4 mm	3.8 mm	λ/8	-200 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B19	N-BK7	Plano-Concave	25.4 mm	3.7mm	λ/8	-250 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B20	N-BK7	Plano-Concave	25.4 mm	3.6 mm	λ/8	-300 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B21	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-400 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B22	N-BK7	Plano-Concave	25.4 mm	3.9 mm	λ/8	-450 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B23	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-500 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B24	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-650 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B25	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-750 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B26	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-1000 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B27	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-1500 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B28	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-2000 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B29	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-3000 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B30	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-4000 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B31	N-BK7	Plano-Concave	25.4 mm	4 mm	λ/8	-5000 mm	Uncoated	1 Weeks	$30
N-BK7 PCV Spherical Lenses B32	N-BK7	Plano-Concave	38.1 mm	5.5 mm	λ/8	-100 mm	Uncoated	1 Weeks	$40
N-BK7 PCV Spherical Lenses B33	N-BK7	Plano-Concave	38.1 mm	5.6 mm	λ/8	-150 mm	Uncoated	1 Weeks	$40
N-BK7 PCV Spherical Lenses B34	N-BK7	Plano-Concave	38.1 mm	5.8 mm	λ/8	-200 mm	Uncoated	1 Weeks	$40
N-BK7 PCV Spherical Lenses B35	N-BK7	Plano-Concave	38.1 mm	5.6 mm	λ/8	-300 mm	Uncoated	1 Weeks	$40
N-BK7 PCV Spherical Lenses B36	N-BK7	Plano-Concave	50.8 mm	12 mm	λ/8	-75 mm	Uncoated	1 Weeks	$50
N-BK7 PCV Spherical Lenses B37	N-BK7	Plano-Concave	50.8 mm	10 mm	λ/8	-100 mm	Uncoated	1 Weeks	$50
N-BK7 PCV Spherical Lenses B38	N-BK7	Plano-Concave	50.8 mm	10 mm	λ/8	-125 mm	Uncoated	1 Weeks	$50
N-BK7 PCV Spherical Lenses B39	N-BK7	Plano-Concave	50.8 mm	9 mm	λ/8	-150 mm	Uncoated	1 Weeks	$50
N-BK7 PCV Spherical Lenses B40	N-BK7	Plano-Concave	50.8 mm	8 mm	λ/8	-200 mm	Uncoated	1 Weeks	$50
N-BK7 PCV Spherical Lenses B41	N-BK7	Plano-Concave	50.8 mm	7.5 mm	λ/8	-250 mm	Uncoated	1 Weeks	$50

Part NO.

Material

Construction

Diameter

Thickness

Flatness

EFFL(587.6nm)

Coated

Delivery

Price

Add to CART

Part NO.	Material	Construction	Diameter	Thickness	Flatness	EFFL(587.6nm)	Coated	Delivery	Price	Add to CART
CAF2 PCV Spherical Lenses C01	Calcium Fluoride	Plano-Concave	12.7 mm	1.9 mm	λ/2	-25 mm	Uncoated	1 Weeks	$60
CAF2 PCV Spherical Lenses C02	Calcium Fluoride	Plano-Concave	12.7 mm	2 mm	λ/2	-50 mm	Uncoated	1 Weeks	$60
CAF2 PCV Spherical Lenses C03	Calcium Fluoride	Plano-Concave	12.7 mm	2.4 mm	λ/2	-75 mm	Uncoated	1 Weeks	$60
CAF2 PCV Spherical Lenses C04	Calcium Fluoride	Plano-Concave	12.7 mm	2.5 mm	λ/2	-100 mm	Uncoated	1 Weeks	$60
CAF2 PCV Spherical Lenses C05	Calcium Fluoride	Plano-Concave	12.7 mm	2.7 mm	λ/2	-150 mm	Uncoated	1 Weeks	$60
CAF2 PCV Spherical Lenses C06	Calcium Fluoride	Plano-Concave	12.7 mm	1.8 mm	λ/2	-200 mm	Uncoated	1 Weeks	$60
CAF2 PCV Spherical Lenses C07	Calcium Fluoride	Plano-Concave	12.7 mm	1.8 mm	λ/2	-250 mm	Uncoated	1 Weeks	$60
CAF2 PCV Spherical Lenses C08	Calcium Fluoride	Plano-Concave	12.7 mm	1.9 mm	λ/2	-500 mm	Uncoated	1 Weeks	$60
CAF2 PCV Spherical Lenses C09	Calcium Fluoride	Plano-Concave	25.4 mm	2.5 mm	λ/2	-40 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C10	Calcium Fluoride	Plano-Concave	25.4 mm	2.7 mm	λ/2	-50 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C11	Calcium Fluoride	Plano-Concave	25.4 mm	2.8 mm	λ/2	-75 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C12	Calcium Fluoride	Plano-Concave	25.4 mm	3 mm	λ/2	-100 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C13	Calcium Fluoride	Plano-Concave	25.4 mm	2.7 mm	λ/2	-150 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C14	Calcium Fluoride	Plano-Concave	25.4 mm	3 mm	λ/2	-200 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C15	Calcium Fluoride	Plano-Concave	25.4 mm	3.2 mm	λ/2	-250 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C16	Calcium Fluoride	Plano-Concave	25.4 mm	3.4 mm	λ/2	-300 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C17	Calcium Fluoride	Plano-Concave	25.4 mm	3.5 mm	λ/2	-400 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C18	Calcium Fluoride	Plano-Concave	25.4 mm	2.6 mm	λ/2	-500 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C19	Calcium Fluoride	Plano-Concave	25.4 mm	2.8 mm	λ/2	-1000 mm	Uncoated	1 Weeks	$70
CAF2 PCV Spherical Lenses C20	Calcium Fluoride	Plano-Concave	50.8 mm	3.6 mm	λ/2	-200 mm	Uncoated	1 Weeks	$80
CAF2 PCV Spherical Lenses C21	Calcium Fluoride	Plano-Concave	50.8 mm	3 mm	λ/2	-300 mm	Uncoated	1 Weeks	$80
CAF2 PCV Spherical Lenses C22	Calcium Fluoride	Plano-Concave	50.8 mm	4 mm	λ/2	-500 mm	Uncoated	1 Weeks	$80

Know about the Features and application of Plano Concave Lens ?

A Plano Concave Lens is a simple lens with one flat (plano) surface and one concave surface. This type of lens is primarily used to diverge, or spread out, light rays. Here are some key features:

Diverging Light: Plano Concave Lenses are designed to diverge light. They take parallel light rays and spread them out.

Forming Virtual Images: Unlike Plano Convex Lenses, which can form real images, Plano Concave Lenses form virtual images that appear to be located on the same side of the lens as the light source. This makes them useful in applications such as beam expanders and projection systems.

Negative Focal Length: These lenses have a negative focal length, which refers to the fact that the lens diverges light rather than focusing it.

Reduction of Spherical Aberration: When used appropriately, a Plano Concave Lens can be used to reduce the spherical aberration produced by other lenses.

Material Variety: Similar to Plano Convex Lenses, Plano Concave Lenses can be made from a wide range of materials, including N-BK7, Fused Silica, CaF2 and various types of plastic.

Attribute	Specification
Material	N-BK7, Fused Silica, N-SF10, Silicon, CaF2, Sapphire, etc.
Typical Diameter (Фmm)	10.0, 12.7, 15.0, 20.0, 25.4, 30.0, 50.8, etc.
Diameter Tolerance (mm)	+0.0/-0.02 (High Precision)
Paraxial Focal Length Tolerance (mm)	±2%
Centration	<3 arc min
Clear Aperture	>90%
Surface Figure (@632.8nm)	λ/4 (High Precision)
IRR ( @632.8nm)	λ/10 (High Precision)
Surface Quality	10/5 (High Precision)
Bevel (face width x 45°)	<0.25mm
Coating	uncoated, AR, HR, PR Coating, etc.