product origin:
Chinashipping port:
Fuzhou Chinalead time:
4 working weekspayment:
T/T Payment, Western UnionUni 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.
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
Hot Tags :
Plano-Convex Rectangular Cylindrical Lenses
Optical glass Plano Convex Circular Cylindrical Lenses
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.
Custom Truncated Doublet and Singlet Lenses
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-TFA1628S-6MP
Product Features:
· Developed for 1/1.8" image format
· Low distortion
· High relative illumination
· Focus and iris fixed with screw
Product information: Custom designs are available upon request.
UN-GSWIR3514C
Product Features:
· Developed for 1" image format
· Wavelength: 900-1700nm
· Large Aperture, up to F1.4
· Compact and lightweight design
Machine Vision Bandpass Filters
A band pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range, and it’s used to selectively transmit a portion of the spectrum while rejecting all other wavelengths.
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Tel : +86-591-86395085
Email : sales@uni-optics.com
