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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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Custom Truncated Doublet and Singlet Lenses
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Custom Truncated Doublet and Singlet Lenses from UNI Optics


We offer an extensive custom truncated doublet lens service. With our 30 year heritage of experience in the industry means we can always find the right product and specification for you, whether you require exotic materials, or exceptionally tight tolerances, we are confident in our ability to supply to your complete satisfaction. The table below is a brief overview of our doublet lens  and is not an exhaustive list. If your individual requirements are not met, then please contact our technical sales team who will be happy to advise.es and is n’t an exhaustive list. If your individual requirements are not met, then please contact our technical sales team who will be happy to advise.


Typical Specifications:


Typical materials: Flint (N/F2) and Crown (BK7)
                             Flint (SF6) and Crown (N-LAK22)
                             UV & IR materials on request
Diameter: 3mm to 200mm+
Focal length: 3mm to 1000mm+
Centration: < 3 arcseconds
Surface figure: < 0.1 fringe
Surface quality: < 10/5 Scratch/dig
Coating options: Single layer and BBAR coatings for UV/VIS/NIR with R.avg.<0.25%

More information on the achievable specifications for your individual application can be found by contacting our technical sales team. 

UN-TFA3520X-12MP
UN-TFA3520X-12MP

Taurus Series 4/3 Format FA Lens(12MP)

Model

UN-TFA3520X-12MP

Focal length

35mm

  


Aperture

F2.0-F22

Image Format

4/3(23mm)

Mount

C

 

Field Angle

D x H x V (°)

 

4/3

1

1/2"

D

36.8°

26.0°

13.2°

H

29.7°

20.8°

10.6°

V

22.5°

15.8°

7.9°

Optical Distortion

-0.52%@

y=11.5mm

-0.42%@

y=8.0mm

-0.12%@

y=4.0mm

M. O. D.

0.2m

Dimension

Φ48.5*64.3mm

Back Focal Length

18mm

Design Wavelength

420~1000nm

Operation

Manual  Iris

Manual  Focus

Filter Thread

M46×P0.75

Weight

207g

Work Temperature

-20℃+60℃

  

UN-TFA1628L-20MP
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· High relative illumination and high contrast

· Low distortion and excellent corner brightness

· High resolution

· Compatible with 1'' and 1.1'' 20MP camera

UN-TFA5020C
UN-TFA5020C

Product Features:


1. Compatible for 2/3'' Format Sensor

2. Ultra-compact Design

3. Ultra Low Distortion

4. High Relative Illumination

5. High Cost Performance

6. Supply with Focus and Iris locking screws.


Product information: Custom designs are available upon request.

Download the datasheet of UN-TFA5020C


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