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CreatorOptics Crescent Lens, Meniscus Lens, custom

CreatorOptics Crescent Lens, Meniscus Lens, custom
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CreatorOptics Crescent Lens, Meniscus Lens, custom

Product catalog summary
Crescent / Meniscus Lenses Overview
The Meniscus or Crescent lens features concave-convex spherical polished surfaces. These lenses are particularly effective when used in combination with other optical components to adjust the focal length of an assembly without significantly increasing axial aberrations. They are ideal for shortening the focal length of a doublet or a plano-convex lens operating at an infinite conjugate ratio.
Materials
The primary materials used for crescent lenses include BK7 glass, all catalog optical glass, Sapphire crystal, Quartz crystal, Germanium (Ge) monocrystal, Silicon monocrystal, ZnSe, Barium Fluoride (BaF2), Calcium Fluoride (CaF2), ZnS, Pyrex, BOROFLOAT, and float glass.
Specifications & Quality Grades
  • Dimensions: Precise grade ranges from 3 to 150mm in diameter, with customization available. Standard grade ranges from 1 to 300mm, also customizable.
  • Tolerance of Diameter (D): Precise grade is +/-0.05mm, while standard grade is +/-0.1mm.
  • Thickness Tolerance: Precise grade is +/-0.05mm, standard grade is +/-0.1mm.
  • Centering: Precise grade is less than 1 arc minute, standard grade is less than 3 arc minutes.
  • Chamfer/Bevel: Both grades have a 0.25x45° bevel with no chips and fine ground.
  • Surface Accuracy: Precise grade is 1/0.5 @633nm, standard grade is 3/1 @633nm.
  • Surface Quality: Precise grade is 40/20, 20/10, while standard grade is 60/40.
  • Clear Aperture: Greater than 85% for both grades.
  • Coating: Anti-reflective coatings are available and can be customized.
Contact Information
Nanjing Creator Optics Co., Ltd.
Phone: +86 25 8342 7907
Fax: +86 25 8342 6285
Email: [email protected]
Website: http://www.creatoroptics.com
See more

Catalog excerpts

CreatorOptics Crescent Lens, Meniscus Lens, custom-1

Nanjing Creator Optics Co., Ltd. • i reator Optic^ Crescent / Meniscus Lenses (Concave Convex) The Meniscus / Crescent lens has concave-convex spherical polished surfaces. If these meniscus / crescent lenses are used in combination with other components, it is possible the focal length of assembly, without significantly increasing the axial aberrations. These lenses are employed to greatest advantage to they are used to shorten the length the focal length of a doublet or a plano-convex lens already working at an infinite conjugate ratio. The main material of crescent lens are as follows: BK7 glass and all catalog optical glass, Sapphire crystal, Quartz crystal, Germanium (Ge) monocrystal, Silicon monocrystal, ZnSe, Barium Fluoride (BaF2), Calcium Fluoride (CaF2), ZnS, Pyrex, BOROFLOAT, float glass, etc. Specifications/Grade Dimensions Tolerance of “D” Thickness Tolerance Centering Chamfer/Bevel Surface Accuracy Surface Quality Clear Aperture Coating Precise Diameter 3 to 150mm, customized available +/-0.05mm +/-0.05mm <1 arc min. 0.25x45° (no-chips) fine ground 1/0.5 @633nm 40/20, 20/10 >85% Diameter 1 to 300mm, customized available +/-0.1mm +/-0.1mm <3 arc min. 0.25x45°(no-chips) fine ground 3/1 @633nm 60/40 >85% Anti-reflective coatings, customized available

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.