Double-Concave Spheric Lens
Description
FOCtek provides five kinds of spheric lens forms, or shapes, that determine the imaging Characteristics of the lenses, they are plano-convex, plano-concave, Double-convex, Double-concave and Meniscus.
Double-Concave Spheric Lens
Specifications |
|
|---|---|
| Material: | BK7, FS, CaF2, Si |
| Diameter: | 20.0 mm |
| Focal Length: | -- mm |
| Edge Thickness, Te: | -- mm |
| Lens Type: | Bi-Concave |
Features
Plano-convex lens has a positive focal length, which makes it ideal for collecting and focusing light for many imaging applications.
Plano-concave lens has a negative focal length and is used for image reductinon or to spread light.
Double-convex lens has a positive focal length and is useful for 1:1 imaging and in multielement systems. also known as biconvex or equiconvex.
Double-concave lens has a negative focal length and is useful for 1:1 imaging and in multielement systems. also known as biconcave or equiconcave.
Meniscus lense has a positive or negative focal length, it forms a real or virtual image of objects.
Applications
For pricing, technical or any other questions please contact the supplier
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How to order?
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Ships from:
China
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On FindLight:
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Frequently Asked Questions
FOCtek provides five kinds of spheric lens forms, or shapes, that determine the imaging characteristics of the lenses. They are plano-convex, plano-concave, double-convex, double-concave, and meniscus.
Plano-convex lens has a positive focal length, which makes it ideal for collecting and focusing light for many imaging applications.
Plano-concave lens has a negative focal length and is used for image reduction or to spread light.
Double-convex lens has a positive focal length and is useful for 1:1 imaging and in multielement systems. It is also known as biconvex or equiconvex. Double-concave lens has a negative focal length and is useful for 1:1 imaging and in multielement systems. It is also known as biconcave or equiconcave.
Meniscus lens has a positive or negative focal length, and it forms a real or virtual image of objects.