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Lens
Product Description
Lenses |
Materials |
Illustration |
Property and Application |
|
Plano-convex |
BK7 |
|
Positive focus length. Most suitable where one conjugate is more than five times the other, e.g. in sensor application or for use with near collimated light. |
|
Double-convex |
BK7 |
|
Most suitable where the conjugates are on opposite sides of the lenses and the ratio of the distances is less than 5:1, e.g. as simple image relay components. |
|
Plano-concave |
Fused Silica |
|
Negative lens with the form most suitable where one conjugates is more than five times the other, e.g. producing divergent light from a collimated input beam. |
|
Double-concave |
BK7 |
|
Negative lens with the form most suited to producing diverging light or a virtual image, where the input light is converging. |
|
Meniscus |
Positive |
BK7 |
|
These lenses may be used to increase the numerical aperture of a positive lens assembly, without an undue increase in the aberrations. |
Negative |
BK7 |
|
The best lens form where one conjugates is relatively far from the lens or where both conjugates are the same size of the lens. |
|
Cylindical |
BK7 Fused Silica |
|
Used to provide focusing power in one section only. For illumination or detection of light from line sources. Also used to anamorphic compression of beams and images. |
Key words:
lens
plano convex
pcx
plano concave
pcv
double concave
meniscus
cylindrical
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Established in 2001 and located in the city of Qingdao, China. Crystech Inc. is a global supplier of Alexandrite, KTP, RTP and E-O Q-Switch, YAG crystals, Laser Optics and more.
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