China 175mm Borosilicate Fresnel Glass Lens for Lighting, Find details about China Borosilicate Glass Fresnel Lens, Pressed Optical Borosilicate Fresnel Glass from 175mm Borosilicate Fresnel Glass Lens for Lighting
A Fresnel lens is a type of compact lens originally developed by French physicist Augustin-Jean Fresnel for lighthouses.
The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. A Fresnel lens can capture more oblique light from a light source, thus allowing the light from a lighthouse equipped with one to be visible over greater distances.
Brand name | DG OPTICS |
Material | 3.3 high borosilocate glass |
Application | Lighting and instrument |
Shape | Customized logo |
Size | 50-300mm |
Surface | Clean |
Edge | Ground |
MOQ | 1000pcs |
Diameter in stock | 50mm, 80mm, 112mm, 150mm, 175mm, 200mm, 250mm |