Plano Concave Lens Synthetic Fused Silica 50.8mm Diameter −300mm Focal Length

SLSQ-50.8-300N

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These simple negative lenses have many uses. Alone they form a virtual image of a distant object or collimated light source. Used in combination with other optics they reduce the power of the system. Sharp edges which are common in negative lenses are removed by beveling in order to reduce the likelihood of chipping.

Details

◦There are three types of plano concave lenses available; synthetic fused silica for wavelengths less than 350nm ultraviolet light, and synthetic fused silica lens for excimer laser wavelengths such as KrF (248nm) and ArF (193nm).
◦Our lenses are listed by outside diameter and focal length to assist your selection according to required specifications.

More Information

More Information
Name	Plano Concave Lens Synthetic Fused Silica 50.8mm Diameter −300mm Focal Length
Weight	0.0500kgs
Standard Coatings Available	Yes
Guide	Lenses are available in a large selection and in custom sizes and focal lengths. In addition to our standard coating we offer custom anti-reflective coating at specific wavelengths.
Remark	-
Attention	Plano concave lenses are negative lenses that diverge collimated incident light and are primarily used in conjunction with plano convex lenses to shape beams. The plano-concave lens has chromatic aberration, the focal length will vary depending on the wavelength. Please check the “wavelength characteristic of the focal length data” on “Technical Data” for the focal lengths of each wavelength. The plano concave lenses are designed for parallel light to be incident to the concave surface. Transmissions losses due to reflection off the front and rear surfaces of the lens can be minimized by coating the surfaces. Consult our Sales Division for anti-reflection coatings suitable for your application. Sharpe edges are common in negative lenses are removed by beveling in order to reduce chipping may result in smaller then edge thickness. Thicknesses listed in tables are to theoretical sharp edge.
Diameter φD	50.8mm
Focal length	300mm
Material	Synthetic fused silica
Design Wavelength	546.1nm
Refractive index n<sub>e</sub>	1.46
Coating	Uncoated
Clear aperture	90% of the diameter
Surface Quality (Scratch-Dig)	20-10
Diameter φD	φ50.8mm
Focal length f	−300mm
Edge thickness te	5.4mm
Center thickness tc	3mm
Back focal length fb	−302.1mm
Radius of curvature r	138mm
Centration	＜1′

In stock

SKU

SLSQ-50.8-300N

$259.00

Plano Concave Lens Synthetic Fused Silica 50.8mm Diameter −300mm Focal Length

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