Product Name: Bk7 Optical Cylindrical Lens for Optical Inspection From China Model NO.: vy035 Coating: as Requested Customized: Customized Certification: RoHS, ISO9001 Lenses Color: Clear Material: Optical Glass Shape: Cylindrical Shaped Lens Transmittance: >95% Type: Convex Lens Usage: Optical Dia. 25.4mm: 1 Inch Dimension Tolerance: 0.0-0.1mm Center Thickness: +/-0.1mm Surface Quality: 20/10 Trademark: VY or OEM Transport Package: as Requested Specification: RoHS Origin: China HS Code: 9001909090 Product Description >> Product Description Cylindrical lens is used to correct astigmatism in the eye, and, in rangefinders, to produce astigmatism, stretching a point of light into a line.They are available in either plano concave or plano convex configurations. Plano-Concave Cylindrical lenses have a negative focal length and are used for image reduction or to spread light. Plano-Convex Cylindrical lenses have a positive focal length, which makes them ideal for collecting and focusing light for many imaging applications.Plano-convex cylindrical lens,plano-concave cylindrical lens,bi-convex cylindrical lens,bi-concave cylindrical lens,meniscus cylindrical lens,long cylindrical lens,special cylindrical lens etc..>> SpecificationSpecifiction of our cylinderical lens as follow:*Material BK7 or other optical materials*Dimension Tolerance +0.0 -- -0.1mm*Center Thickness +/-0.1mm*Focal Length Tolerance+/-1%*Surface Quality:20/10*Surface Figure lambda/2 at 633nm on plano side*Clear Aperture >90%*Chamfer 0.25mm at 45 degree typical*Coating OptionalRangeofdiameterDia.0.7mm-Dia.400mmRangeofcurveradiusR1.5-R∞etc.Toleranceofdiameter+/-0.1,+/-0.01,+/-0.005etc.Surfaceaccuracyλ,1/2λ,1/4λ,1/10λ etc.ToleranceofThickness+/-0.1,+/-0.05,+/-0.01etc.Centration+/-2′,+/-1′etc.ApertureN5,1etc.IrregularityΔN2,1,0.5,0.2etc.Surfacequality60/40,40/20,20/10,10/5etc.>> Company Introduction>>Related Products VY Optics could also manufacture and design other optical elements, includingachromatic lens,dome lens,filter,prism,ball lens,cylindrical lens,optical mirrors,spherical lensandrod lens, we can fabricatehigh-precision lensas per your requested.>>FAQQ:Do you provide samples? Is it free or charged?·We'd like to supply samples for free if we have it in stock, but we don't pay freight.Q:How long is your delivery time?·Regarding inventory, it is 3 working days;·For customized one, it's about 15-25 working days, depended on exact quantity and order date.Q:Is it possible to customize special lens?· Yes, to customize special optical element and coating are available here.Q:How to pay?·T/T, Alibaba online assurance payment, MoneyGram, West Union, Paypal and so on.Q:How to ensure the safety of payment?· VY Optics is a reliable supplier not only audited on Alibaba, but also on Made-in-China, reputation and quality is life of our company, and we support Alibaba Trade Assurance.Q:How do you ship goods?·Low value sample: EUB, E Express of China Post, which is cheap;·Light weight parcel: DHL, FedEx, TNT, UPS, EMS, SF Express, China Post;·Heavy cargo: by air or by sea, ship on pallet.Our company enjoy a considerable discount owing to long-term cooperation with courier company.
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