BK7 Plano-Convex lens
Description
Lenses are classified by the curvature of the two optical surfaces. A lens is biconvex (or double convex, or just convex) if both surfaces are convex. If both surfaces have the same radius of curvature, the lens is equiconvex. A lens with two concave surfaces is biconcave (or just concave). If one of the surfaces is flat, the lens is plano-convex or plano-concave depending on the curvature of the other surface. A lens with one convex and one concave side is convex-concave or meniscus. It is this type of lens that is most commonly used in corrective lenses.
If the lens is biconvex or plano-convex, a collimated beam of light passing through the lens will be converged (or focused) to a spot behind the lens. In this case, the lens is called a positive orconverging lens. The distance from the lens to the spot is the focal length of the lens, which is commonly abbreviated f in diagrams and equations.
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BK7 Plano-Convex lens
Specifications |
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|---|---|
| Material: | BK7 |
| Diameter: | 25.4 mm |
| Focal Length: | 100 mm |
| Edge Thickness, Te: | 4.0 mm |
| Lens Type: | Plano-Convex |
Applications
Laser
Optical Measurment Insturments
Telescope
Safty
Medical
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How to order?
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Ships from:
China
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Sold by:
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On FindLight:
since 2015
Frequently Asked Questions
A BK7 Plano-Convex lens is a lens with one flat surface and one convex surface made from BK7 glass material.
The applications of this lens include laser instruments, optical measurement instruments, telescopes, safety, and medical devices.
The focal length tolerance of the lens is ±1%.
The surface quality of the Precision Achromatic Doublet Lenses is 40/20.
The clear aperture of the Plano-Convex Cylindrical Lenses is greater than central 80% of diameter.