Specification Brand : STARTNOW BulletPoint1 : Type:Dia 36-38mm BulletPoint2 : Material:JSG1 Fused Silica (Quartz) BulletPoint3 : Wavelength:1064nm BulletPoint4 : Transmittance:99.5% BulletPoint5 : Notice:"Plus-H" is for large power machine,"Plus-Hq" is for high power machine BulletPoint6 : Comes with soft bag BulletPoint7 : This item has a (4) Four mirrors angled at 62 degrees that help in viewing all quadrants of the anterior chamber without rotation. Color : 10 PCS ExternallyAssignedProductIdentifier : 6903979416572 ExternallyAssignedProductIdentifier1 : 0755462574094 ExternallyAssignedProductIdentifier2 : 755462574094 Finderscope : Reflex FocusType : Manual Focus IncludedComponents : Blue pag,Prism ItemName : Startnow Laser Protective Lens Fused Silica Quartz 35-38mm Diameter 37x7mm 10KW 15KW 20KW 30KW Laser Protection Windows (10 PCS, 37x7mm 0-10KW) ItemPackageDimensions_Height : 10 centimeters ItemPackageDimensions_Length : 18 centimeters ItemPackageDimensions_Width : 12 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-classroom-optics-kits Manufacturer : STARTNOW Material : Glass MeasurementAccuracy : N ModelNumber : Size:80x80x1.1mm 50T:50R NumberOfItems : 1 PartNumber : 30 B PhotoFilterEffectType : Infrared ProductDescription : Fiber Laser Protective Lens Type:Dia 36-39mm Material:JSG1 Fused Silica (Quartz) Wavelength:1064nm Transmittance:99.5%,Laser protective lens, also called laser window and optical window, is an optical plane lens that protects electronic components, sensors and semiconductor components in the optical path. Window plate is one of the basic optical elements in optics. It does not change the optical magnification, but only affects the optical path. Mechanical properties such as light transmittance, surface accuracy, thickness, parallelism and substrate material are important parameters of window. Laser protective lens is an optical glass plate with two parallel surfaces formed after fine grinding and polishing. They can be used as protective elements in a variety of complex environments, and their high transmittance makes them have little effect on the visible light passing through. Commonly used coatings are anti-reflection film (AR) and anti-scratch film (AS), which can also improve the effect according to the needs of customers, and can be waterproof, dustproof and anti-scratch. ProductSiteLaunchDate : 2021-06-01T14:00:00.000Z Size : 37x7mm 0-10KW SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TargetAudienceKeyword1 : For laser cutting, laser marking industries. TargetAudienceKeyword2 : For laser welding and laser engraving industries UnitCount : 1 WaterResistanceLevel : not_water_resistant