Specification Brand : STARTNOW BulletPoint1 : (2pcs/Set) Laser Collimator/Focus Lens BulletPoint2 : D37 C100(aspheric) is 1pc/set BulletPoint3 : Diameter:37mm=1.45" BulletPoint4 : Focal Length:100mm/150mm/200mm BulletPoint5 : 2pcs/set:1st Convex-Convex, 2nd Concave-convex BulletPoint6 : Application:For Raytools BM115 Laser Cutting Head Color : As Described ExternallyAssignedProductIdentifier : 7639901270453 IncludedComponents : BM115 Focusing Collimation Lens ItemName : Startnow BM115 Optical Lens Set 1.45" (37mm) Diameter Double Convex Lens & Concave Lens F100mm/150mm/200mm Focal Lengths Optical Lens for Raytools Series Laser Cutting Head (BM115-D37 F200) ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 18 centimeters ItemPackageDimensions_Width : 12 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-classroom-optics-kits Manufacturer : STARTNOW ModelName : Brrnoogp9qbmv1s8 ModelNumber : BM115-D37 F200 NumberOfItems : 1 PartNumber : BM115 Focusing Collimation Lens ProductDescription : Focusing collimating lens assembly in laser cutting head usually includes two main lenses: collimating lens and focusing lens. Collimator lens: used to recombine the scattered laser beam into a parallel beam after the laser beam is transmitted through optical fiber. Focusing lens: focuses the collimated parallel light beam on a very small point, thus producing high-density energy points when cutting materials. If the lens is damaged or contaminated, it may lead to a decrease in laser cutting efficiency or a bad cutting effect. Therefore, it is necessary to pay special attention to the cleaning and maintenance of lenses during use. ProductSiteLaunchDate : 2024-08-29T06:26:52.128Z SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 41000000