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CreatorOptics Bi-concave Lens, Double-concave Lens, Custom

CreatorOptics Bi-concave Lens, Double-concave Lens, Custom
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CreatorOptics Bi-concave Lens, Double-concave Lens, Custom

Product catalog summary
Overview of Bi-Concave/Double Concave Lenses:
The Bi-Concave or Double Concave Lens is designed to have a focal length that diverges collimated incident light, forming only virtual images. These lenses are typically used to expand light beams or increase focal length in optical systems and are often combined with other lenses. They are preferred over single plano-concave lenses when magnification is a consideration.

Materials:
The primary materials used for double concave lenses include BK7 glass, Sapphire crystal, Quartz crystal, UV Fused Silica, Germanium monocrystal, Silicon monocrystal, ZnSe, Barium Fluoride (BaF2), Calcium Fluoride (CaF2), ZnS, Pyrex, BOROFLOAT, and float glass.

Specifications and Quality Grades:
  • Dimensions: Precise: Diameter 3 to 150mm, customizable; Standard: Diameter 1 to 300mm, customizable.
  • Tolerance of Diameter (D): Precise: +/-0.05mm; Standard: +/-0.1mm.
  • Thickness Tolerance: Precise: +/-0.05mm; Standard: +/-0.1mm.
  • Centering: Precise: <1 arc min.; Standard: <3 arc min.
  • Chamfer/Bevel: 0.25x45°, fine ground for both grades.
  • Surface Accuracy: Precise: 1/0.5 @633nm; Standard: 3/1 @633nm.
  • Surface Quality: Precise: 40/20, 20/10; Standard: 60/40.
  • Clear Aperture: Greater than 85% for both grades.
  • Coating: Anti-reflective coatings available, customizable.

Shapes:
Available in circular/round, special cutting, rectangular, square, or step shapes.

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 Bi-concave Lens, Double-concave Lens, Custom-1

Nanjing Creator Optics Co., Ltd. Bi-concave Lenses / Double Concave Lenses (DCV) The Bi-Concave / Double-concave Lens has a focal length, diverges collimated incident light, and forms only virtual images that are seen through the lens. It's often used to expand light beams or to increase focal length in existing systems, and is normally used in combination with other lenses, In a single lens application you should consider using them in preference to a single plano-concave lens if the magnification lies in the region. The main material of double concave lens are as follows: BK7 glass and all catalog optical glass, Sapphire crystal, Quartz crystal, UV Fused Silica, Germanium monocrystal (Ge), Silicon monocrystal, ZnSe, Barium Fluoride (BaF2), Calcium Fluoride (CaF2), ZnS, Pyrex, BOROFLOAT, float glass, etc. Characteristic & Quality Grade Selection Chart Specifications/Grade Diameter 3 to 150mm, customized available Diameter 1 to 300mm, customized available Thickness Tolerance Surface Quality Clear Aperture Chamfer/Bevel Surface Accuracy Anti-reflective coatings, customized available ● Circular / Round Double Concave Lens, Bi-concave Lens ● Special Cutting, rectangular or square, step

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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.