acrylic lens
1acrylic lens — a plastic lens used to replace the crystalline lens after cataract surgery …
2Acrylic glass — chembox new ImageFile = PMMA repeating unit.svg ImageSize = 100px IUPACName = SystematicName = OtherNames = poly(methyl methacrylate) (PMMA) methyl methacrylate resin Section1 = Chembox Identifiers Abbreviations = CASNo = 9011 14 7 EINECS =… …
3Lens — The transparent structure inside the eye that focuses light rays onto the retina (the nerve layer that lines the back of the eye, senses light and creates impulses that go through the optic nerve to the brain). The lens was named after the lentil …
4fresnel lens — F/A/V a flat glass or acrylic lens in which the curvature of a normal lens surface has been collapsed in such a way that concentric circles are impressed on the lens surface; often used for the condenser lens in overhead projectors, in rear… …
5Intraocular lens — An intraocular lens (IOL) is an implanted lens in the eye, usually replacing the existing crystalline lens because it has been clouded over by a cataract, or as a form of refractive surgery to change the eye s optical power. It usually consists… …
6Photographic lens — A photographic lens (also known as objective lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media… …
7St. Helena Island Light — Infobox Lighthouse caption = Undated USCG photo location = St. Helena Island Michigan coordinates = coord|45|51.50|N|84|52.25|W yearlit = 1873 automated = 1922 yeardeactivated = foundation = limestone construction = brick shape = conical marking …
8Kenosha Southport Light — Infobox Lighthouse caption = Kenosha (Southport) lighthouse location = Simmons Island, Kenosha, Wisconsin coordinates = coord|42|35|22|N|87|48|57|W|region:US type:landmark yearlit = 1866 automated = 1996 yeardeactivated = 1906 1996 foundation =… …
9Charlevoix South Pier Light Station — Charlevoix Lighthouse Location Charlevoix County, Michigan Coordinates …
10Haig Point Range Lights — Infobox Lighthouse caption = Haig Point Rear Range Light in 1885 location = coordinates = coord|32|08|43|N|80|50|11.2|W|type:landmark yearbuilt = 1873 yearlit = 1873 1986 Private (Rear) automated = yeardeactivated = 1924 foundation = construction …
