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Optics Other Optics Lenses

Lenses have many applications ranging from the simple collection of the scanning of laser beams to precise imaging and image transfer. Claser provide these lenses for different application.

Lenses Materials Illustration Property and Application
Plano-convex Sapphire
Fused Silica
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 Sapphire
Fused Silica
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 Sapphire
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
Fused Silica
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.

Specification for lenses (Cylindrical Lenses)

Material: BK7 ( Or Fused Silica)
Design Wavelength: 546.1nm (632.8 nm for Cylindrical lenses )


l/4@632.8nm (x: l/2; y: 2l for Cylindrical lenses)

Diameter Tolerance:

+0.0, -0.15mm

Thickness tolerance :


Clear Aperture:


Surface Quality:

20-10 scratch and dig


0.25 mm x 45°

Paraxial Focal Length:



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