Convex+lens
91Myopia — For other uses, see Myopia (disambiguation). Myopia Classification and external resources ICD 10 H …
92Newton's rings — observed through a microscope. The smallest increments on the superimposed scale are 100μm …
93Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of …
94Glasses — Glasses, also called eyeglasses or spectacles, are frames bearing lenses worn in front of the eyes, normally for vision correction, eye protection, or for protection from UV rays.Modern glasses are typically supported by pads on the bridge of the …
95Optical telescope — Eight Inch refracting telescope (Chabot Space and Science Center) An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for… …
96glass — Synonyms and related words: CM glass, CR glass, achromatic lens, adobe, aerological instrument, agate glass, alabaster, aneroid barometer, aneroidograph, astigmatic lens, barograph, barometer, barometrograph, beaker, bifocals, bijouterie,… …
97Hyperopia — Hypermetropia Classification and external resources ICD 10 H52.0 ICD 9 367.0 Hyperopia, also known as farsig …
98Eyeglass prescription — Using a phoropter to determine a prescription for eyeglasses An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist or ophthalmologist, that specifies the value of all parameters the prescriber has deemed… …
99Schmidt camera — A Schmidt camera, also referred to as the Schmidt telescope, is an astronomical camera designed to provide wide fields of view with limited aberrations. Other similar designs are the Wright Camera and Lurie Houghton telescope.Invention and… …
100Timeline of telescope technology — Timeline of telescope technology* c.2560 BC c.860 BC Egyptian artisans polish rock crystal, semi precious stones, and latterly glass to produce facsimile eyes for statuary and mummy cases. The intent appears to be to produce an optical illusion.… …
