Biconcave Lens/Double Concave Lens/Fused Silica Biconcave Lens/Bi-Concave Lens

Product Description

General Introduction:
Raytek UV fused quartz biconcave cylindrical lens can choose not to be coated, but also to be coated with a variety of multilayer antireflective coatings. All lenses are guaranteed λ/ 8 surface accuracy and 20-10 scratch-dig surface quality. UV fused silica is a highly pure synthetic amorphous silica, which can provide transmittance of 195-2100 nm. This amorphous colorless quartz glass combines very low thermal expansion coefficient, good optical quality and excellent transmittance in the ultraviolet band. Moreover, it does not emit fluorescence under ultraviolet light and is radiation resistant..

Products Name: Silica Bi-Concave Lenses
Alias: UV FUSED SILICA Bi-concave Lenses,UV FUSED SILICA Bi-concave Lenses, Optical Concave lens, UV FUSED SILICA optical concave lens, Visible UV FUSED SILICA Bi-concave Lens, Visible Bi-concave lens, IR Bi-concave lens, NIR Bi-concave lens, 1064nm Bi-concave lens, Uncoated Bi-concave lens,Double concave lens,etc

Lens Options:

Optional I:	UV FUSED SILICA from CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,ETC
Optional II:	Equivalent UV FUSED SILICA Made in China, C-laser own brands

Main Optical Tech Specification:

Tech Data	Description
Lens Shape	Bi-Concave (Double Concave)
Material	UV FUSED SILICA
Surface Quality	20-10 scratch-dig
Surface Flatness	λ/8
Surface Accuracy, Irregularity	λ/8
Surface Accuracy, Power	1.5 λ
Centration	≤3 arc min
Chamfers	0-0.8 mm face width
Chamfers Angle Tolerance	45° ±15°, typical
Focal Length Tolerance	±1 %
Clear Aperture	≥central 90% of diameter
Effective Focal Length(EFL)	From -50mm to -1000mm

Main Cooperation Materials Manufacturers:
CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC

Main Export Countries & Areas:
Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.


Raytekoptics Extra value added services offered:
1). Optical workcraft & process solution design;
2). Rough processing raw materials;
3). Semi finishing raw materials;
4). Fabricate custom sizes and shapes;
5). Design and supply custom coatings;
6). Modify and resurface customer supplied materials;
7). Drill holes, notch glass and provide beveled substrates;
8). Precision polish optics with non-standard aspect ratios;

Payment Method: by T/T or Western Union.
Delivery time: 7-10 days.
Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offers quality warranty for our optics products with "3R" policy. For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.