UV Fused Silica Bi-Concave Lenses/Fused Silica Biconcave Lens/Bi-Concave Lens

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: UV Fused Silica Bi-Concave LensesAlias: 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,etcLens Substrates:UV FUSED SILICAOptional I:UV FUSED SILICAfrom CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,ETCOptional II:Equivalent UV FUSED SILICAMade in China, C-laser own brands Coating Type:Coating Code:Coating TypeWavelength RangeAR.14Visible Multilayer430-700 nmAR.16NIR Multilayer650-1000 nmAR.18IR Multilayer1000-1550 nmAR.33Laser Line V-Coat Multilayer1064 nm-Uncoated-Main Applying: Applying Fields I:Negative lensImaging lensBeam expander lensBeam collimating lensDivergent collimated beamCollimating divergent beamApplying Fields II:Laser beam expansionOptical readerObserverProjection system***** Main Characters:1).UV grade fused silica substrates2).≤λ/8 surface irregularity, 20-10 scratch-dig3).Double-concave shape for beam expansion applications4).Standardized focal lengths across different lens sizesProducts Highlights:1).Different grades materials for option.2).High precision & high surface roughness;3).Sizes can be customized as per the customers' request4).Quick lead time and delivery time.5).Matching super optics custom and processing capacity, including Moulding, CNC machining, Polishing, Particle beam processing, Magnetic flux conversion processing, Grinding, Coating, Lightweighting, Custom Shaping, Counterbores, Drilling & Coring, Edge & Bevel Polishing,3D Contouring, Bevels & Chamfers, Steps & Slots, Laser Cutting & Marking, Metrology & Inspection, Precision Pitch Polishing, Double-Sided Polishing, Optical Assembly, Measuring, etc.6).Excellent post-sale quality warranty, with "3R"-return, replace & refund policyMain Optical Tech Specification:Tech DataDescriptionLens ShapeBi-Concave (Double Concave)MaterialUV FUSED SILICASurface Quality20-10 scratch-digSurface Flatnessλ/8Surface Accuracy, Irregularityλ/8Surface Accuracy, Power1.5 λCentration≤3 arc minChamfers0-0.8 mm face widthChamfers Angle Tolerance45° ±15°, typicalFocal Length Tolerance±1 %Clear Aperture≥central 90% of diameterEffective Focal Length(EFL)From -50mm to -1000mmPopular Physical Size Specification:Size6.35mm/12.70mm/25.40mm/50.8mm,orDesign & custom manufacturing as per demand.Size Tolerance+0/-0.1 mmThickness-Thickness Tolerance-Main Cooperation Materials Manufacturers:CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETCMain 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. /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1