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Plano Convex Lenses,    Double Convex Lenses,    Plano Concave Lenses,    Double Concave Lenses,
    Meniscus Lenses,            Cylindrical Lenses,           Achromatic Lenses ,                Ball Lenses,
     Half Ball Lenses

Plano-Concave Lenses

Lenses have many application ranging from the simple collection of the scaning of laser beams to precise imaging and image transfer. Lenses are classified as single lenses, cylindrical lenses and achromatic lenses according to the different applications. Pantotek Technologies Inc. provides these lenses with the material of BK7, fused silica, sapphire and CaF2. Special focusing systems are able to be designed by engineers upon request.

Our quality and price of big lenses are very competitive for Diameter > 50mm

Basic Specifications:

Material	BK7 grade A	Fused silica UV grade	Sapphire optical grade	CaF2 optical grade
Design wavelength	546.1nm	546.1nm	546.1nm	1.5um
Design index	1.5183+/-0.0005	1.46008+/-0.0005	1.771	1.425
Diameter tolerance	+0.0, -0.15mm	+0.0, -0.15mm	+0.0, -0.15mm	+0.0, -0.15mm
Paraxial focal length	+/-2%	+/-2%	+/-2%	+/-2%
Centration	3 arc minutes	3 arc minutes	3 arc minutes	3 arc minutes
Clear aperture	>80%	>80%	>80%	>80%
Surface figure	l/4@632.8nm	l/4@632.8nm	l/4@632.8nm	l/4@632.8nm
Surface quality	60-40	60-40	80-50	80-50
Protective bevel	option	option	option	option

Sales Office in Shanghai Live Chat
Tel: 86-21-58325141 Fax: 86-21-58329412

E-mail: sales@pantotek.com