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Product Name: Flat or Dome Sapphire Watch Crystal Glass Model NO.: VY0071 Coating: as Request Customized: Customized Certification: RoHS, ISO9001 Lenses Color: Clear Material: Sapphire Shape: Single-lens Transmittance: >95% Type: Flat Lens Usage: Lighting, Medical, Optical, Photography, Watch Surface Quality: 40-20 MOQ: 10 Tolerance: +/-0.1 Flatness: as Request Trademark: VY or OEM Transport Package: as Request Specification: sapphire Origin: China HS Code: 9001909090 Product Description >> Product Description Optical lens is a transmissive optical device that affects the focus of a light beam through refraction. A simple lens consists of a single piece of material, while a compound lens consists of several simple lenses (elements), usually along a common axis. Lenses are made from transparent materials such as glass, ground and polished to a desired shape. A lens can focus light to form an image, unlike a prism, which refracts light without focusingWe supply optical lens for optical instrument.Main optical lenses include optical cylindrical lens,optical spherical lens,optical aspherical lens,optical prism,optical filter lens,optical grating,optical windows,optical mirror,optical components,camera lens,fisheye lens,wide angle lens,telephoto lens,projector lens,adapter ring,adapter tube,custom lens,OEM etc..>> specificationSpecification of our optical 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 OptionalRange of diameterDia.0.7mm-Dia.400mmRange of curve radiusR1.5-R∞ etc.Tolerance of diameter+/-0.1, +/-0.01, +/-0.005 etc.Surface accuracyλ , 1/2λ , 1/4λ , 1/10λ etc.Tolerance of Thickness+/-0.1, +/-0.05, +/-0.01 etc.Centration+/-2′,+/-1′ etc.Aperture N5, 1 etc.Irregularity ΔN2, 1, 0.5, 0.2 etc.Surface quality60/40, 40/20, 20/10, 10/5 etc.>> 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.
