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Plano-concave rectangular Cylindrical Lenses

Plano-concave rectangular cylindrical lenses provide uni- axial negative imaging for anamorphic beam expansion and a wide range of applications.These lenses may also be used as mirror blanks if a concave cylindrical surface mirror is required.


  • product origin:

    China
  • shipping port:

    Fuzhou China
  • lead time:

    4 working weeks
  • payment:

    T/T Payment, Western Union
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  • description

Plano-concave rectangular cylindrical lenses provide uni-axial negative imaging for anamorphic beam expansion and a wide range of applications.These lensesmay also be used as 

mirror blanks if a concave cylindrical surface mirror is required.



1、Why is cylindrical lens used?


A cylindrical lens is typically used to focus, condense or expand incoming light. A cylindrical lens has one cylindrical surface, causing light to be focused in a single dimension or axis.

 

2、Which defect of the eye can be corrected by using a cylindrical lens?


The defect of the eye that can be corrected by using cylindrical lens is Astigmatism. Astigmatism is caused due to uneven curvature of the eye lens.

 

3、How do concave and convex lenses correct vision?


Concave Lenses Are for the Nearsighted, Convex for the Farsighted. Concave lenses are used in eyeglasses that correct nearsightedness. ... Placing concave lenses in front of a nearsighted eye reduces the refraction of light and lengthens the focal length so that the image is formed on the retina.



Specifications:


Material: Optical glass,Fused silica
Design wavelength: 546.1nm
Diameter tolerance: +0/-0.05mm
Focal tolerance: +/-2%
surface quality : 40-20 S/D
Centration: 3 arcmin
Surface flatness: N=5 △N=0.5
Clear aperture: 90%
Bevel: Protective
Coating Optional



Plano-concave rectangular Cylindrical Lenses  Plano-concave rectangular Cylindrical Lenses


Part NO. Material  W x H F(mm) R(mm) Tc(mm) Te(mm) Fb(mm)
ULYPV1010127 BK7 10.0X10.0 -12.7 -6.54 2 4.3 -14.0
ULYPV1010020 BK7 10.0X10.0 -20 -10.29 2 3.3 -21.1
ULYPV1010025 BK7 10.0X10.0 -25 -12.87 2 3.0 -26.3
ULYPV2010127 BK7 20.0X10.0 -12.7 -6.54 2 4.3 -14.0
ULYPV2010020 BK7 20.0X10.0 -20 -10.29 2 3.3 -21.1
ULYPV2010025 BK7 20.0X10.0 -25 -12.87 2 3.0 -26.3
ULYPV2020050 BK7 20.0X20.0 -50 -25.73 2 4.0 -51.3
ULYPV2020075 BK7 20.0X20.0 -75 -38.6 2 3.3 -76.3
ULYPV2020100 BK7 20.0X20.0 -100 -51.47 3 4.0 -102.0
ULYPV2020150 BK7 20.0X20.0 -150 -77.2 3 3.7 -152.0
ULYPV2020200 BK7 20.0X20.0 -200 -102.93 3 3.5 -202.0
ULYPV2020250 BK7 20.0X20.0 -250 -128.67 3 3.4 -252.0
ULYPV2020300 BK7 20.0X20.0 -300 -154.4 3 3.3 -302.9
ULYPV2020500 BK7 20.0X20.0 -500 -257.33 3 3.2 -502.0
ULYPV4020050 BK7 40.0X20.0 -50 -25.73 2 4.0 -51.3
ULYPV4020075 BK7 40.0X20.0 -75 -38.6 2 3.3 -76.3
ULYPV4020100 BK7 40.0X20.0 -100 -51.47 3 4.0 -102.0
ULYPV4020150 BK7 40.0X20.0 -150 -77.2 3 3.7 -152.0
ULYPV4020200 BK7 40.0X20.0 -200 -102.93 3 3.5 -202.0
ULYPV4020250 BK7 40.0X20.0 -250 -128.67 3 3.4 -252.0
ULYPV4020300 BK7 40.0X20.0 -300 -154.4 3 3.3 -302.9
ULYPV4020500 BK7 40.0X20.0 -500 -257.33 3 3.2 -502.0

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Substrate Materials: N-BK7, Fused silica, Pyrex;Float glass

Dimensional tolerance: +/-0.1mm

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