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Plano-Concave Circular 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

Uni Optics’s Plano Concave Circular Cylindrical Lens has a concave curvature in the vertical direction and has no curvature in the horizontal direction. They are edged as circular shapes so they can easily be combined with other elements in an optical system.

 

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.


Plano-Concave Circular Cylindrical Lenses  Plano-Concave Circular Cylindrical Lenses



Common specification 


Material: Schott, CDGM, Ohya, Ohara, Corning, etc.

Diameter tolerance: +0/-0.05mm

Effective Focal Length Tolerance:±2%

Centering Tolerance:≤3 arc min

Surface Quality: 40-20 S/D

Surface flatness: N=5△N=0.5

Clear aperture:  > 90 % of surface dimensions

Coating: Optional ( Uncoated / Single layer MgF2 / Broadband AR )


Part NO. Material F(mm) Φ(mm) R(mm) Tc(mm) Te(mm) Fb(mm)
ULYRPV008005 BK7 -8 5 -4.13 2 2.84 -9.34
ULYRPV092008 BK7 -9.2 8 -4.74 2 4.2 -10.53
ULYRPV010008 BK7 -10 8 -5.16 2 3.89 -11.31
ULYRPV125127 BK7 -12.5 12.7 -6.43 2 7.44 -13.8
ULYRPV025127 BK7 -25 12.7 -12.89 2 3.67 -26.33
ULYRPV050127 BK7 -50 12.7 -25.76 2 2.8 -51.33
ULYRPV075254 BK7 -75 25.4 -38.64 2 4.15 -76.34
ULYRPV100254 BK7 -100 25.4 -51.52 3 4.59 -102
ULYRPV150254 BK7 -150 25.4 -77.27 3 4.05 -151.99  



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