Single Lens

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CLaser supplies various of lenses for different application, including laser cavity, laser beam shaping, image transmission, optical measurement, optical equipment etc. So we can supply different quality standard for different application. Customer mostly to use high quality for laser, imaging, optical measurement application, and low standard quality for low cost and large quantity application.
 

Lenses		Materials		Illustration                     Property and Application
Plano-convex		Sapphire BK7 Fused Silica CaF2		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.	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 BK7 Fused Silica CaF2		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.	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.	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 CaF		Negative lens with the form most suited to producing diverging light or a virtual image, where the input light is converging.	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.	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.	The best lens form where one conjugates is relatively far from the lens or where both conjugates are the same size of the lens.
Cylindrical		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.	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.

Specifications

Material:	Various optical glass
Design Wavelength:	546.1nm (632.8 nm for Cylindrical lenses )
Flatness:	l/4@632.8nm (x: l/2; y: 2l for Cylindrical lenses)
Diameter Tolerance:	+0.0, -0.15mm
Thickness tolerance :	±0.2mm
Clear Aperture:	>80%
Surface Quality:	20-10 scratch and dig
Bevel:	0.25 mm x 45°
Paraxial Focal Length:	±2%