Specification Brand : Six Seasons BulletPoint : gonio lens for static and dynamic gonioscopy that features four precisely angled mirrors providing a full 360° view of the anterior chamber. All glass design provides superior clarity and durability compared to acrylic lenses. Available in Flanged or No Flange (nf) contact options. No Flange (nf) contact design does not require interface solution allowing quick eye contact, reducing patient discomfort and facilitating the examination. No Flange version not rated for use with ophthalmic laser treatments. This item has a (4) Four mirrors angled at 62 degrees that help in viewing all quadrants of the anterior chamber without rotation. BulletPoint1 : 1PCS/Pack acrylic large fresnel lens, linear focal BulletPoint2 : Size:750x360mm, Focal length:300mm, Thickness:3mm, Material: PMMA (Acrylic) BulletPoint3 : Great for Physics Classroom, Optical Education, Solar Project, Scientific Research BulletPoint4 : High Light Transmittance, High Efficiency in Focusing, High Precision, Lightweight, Flexible, Durable BulletPoint5 : Six Seasons is a Professional Manufacturer of Fresnel Lens and Optical Lens, If you have size customization needs, welcome to leave a message to us BulletPoint6 : Tips: Wear sunglasses when using, so that the light is not too strong to damage the eyes Color : (4.0")W/Nozzle ExternallyAssignedProductIdentifier : 4153983013935 ExternallyAssignedProductIdentifier1 : 0762736143054 ExternallyAssignedProductIdentifier2 : 762736143054 ExternallyAssignedProductIdentifier3 : 9382603947083 ExternallyAssignedProductIdentifier4 : 9382603946598 ExternallyAssignedProductIdentifier5 : 9382603947021 IncludedComponents : fresnel lens ItemDisplayDimensions_Length : 0.83 centimeters ItemForm : Sheet ItemName : Linear Fresnel Lens 750x360mm, Focal Length 300mm, for Physics Classroom, Optical Education,DIY Project ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 29.52 inches ItemPackageDimensions_Width : 14.2 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : science-classroom-optics-kits ItemVolume : 1 cubic_centimeters Manufacturer : Six Seasons Material : Quartz glass disc ModelNumber : 24-1mm(10) NumberOfBoxes : 1 NumberOfItems : 1 NumberOfLithiumMetalCells : 1 PackageLevel : unit PartNumber : liner750 ProductDescription : Size 750x360mm; Focal Length:300mm;Usage: Optical, Structure: Plano-convex, Material: PMMA (acrylic) ProductSiteLaunchDate : 2024-07-19T15:42:42.457Z Size : 750x360mm SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TargetAudienceKeyword : Professional Audience UnitCount : 1