Cylindrical Lenses
Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, stretching a point of light into a line, they are widely used in bar code scanning, projectio..
ProductsOptical ComponentsLensesCylindrical Lenses
Cylindrical Lenses
Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, stretching a point of light into a line, they are widely used in bar code scanning, projection optics systems, laser measurement systems and holography.
Cylindrical lenses are available in either plano-concave or plano-convex configurations from UPT.
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LENSES
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MATERIALS
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ILLUSTRATION
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PROPERTIES AND APPLICATIONS
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CYLINDRICAL LENS
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BK7/ Fused Silica/CaF2 /other optical glass
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Used to provide focusing power in one section only. For illumination or detection of light from line sources. Also used for anamorphic compression of beams and images.
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Plano-Concave Cylindrical Lens
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Plano-Convex Cylindrical Lens
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Specification:
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General
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HIGH PRECISION
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Material
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Schott N-BK7, CDGM H-K9L, Fused silica, CaF2, Sapphire
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Design wavelength
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546.07nm
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Design index (bk7)
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1.51680 for BK7, 1.45846 for Fused Silica
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Diameter tolerance
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+0.0, 0.15mm
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+0.0, 0.05mm
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Paraxial focal length
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±2%
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±0.5%
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Centration
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<3'
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<1'
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Clear aperture
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80%
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90%
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Surface quality
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60-40 scratch and dig
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10-5 scratch and dig
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Surface irregularity
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< λ/4
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< λ/8
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Protective bevel
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0.25 + 0.25, -0.0mm
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0.2 ± 0.1mm
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Coating
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Uncoating ，AR or Single layer MgF2 coating upon request
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Note for Lens:
(1). Lens made from materials such as N-BK7, Fused Silica, Sapphire, CaF2, Borofloat, or other optical glass supplied by Schott and Chinese CDGM are available upon request.
(2). Custom-made Lens at any size from Φ3.0mm to Φ200mm clear aperture are available.Besides round, Lens at shape of square are available.
(3). 90% clear aperture is available upon request.
(4). Better bevel is available upon request.
(5). Windows with Anti-Reflective (AR), High-Reflective (HR), Partial-Reflective (PR) coating are available.
(2). Custom-made Lens at any size from Φ3.0mm to Φ200mm clear aperture are available.Besides round, Lens at shape of square are available.
(3). 90% clear aperture is available upon request.
(4). Better bevel is available upon request.
(5). Windows with Anti-Reflective (AR), High-Reflective (HR), Partial-Reflective (PR) coating are available.