aplanatic device

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microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… … Universalium
Nonimaging optics — (also called anidolic optics)[1][2] is the branch of optics concerned with the optimal transfer of light radiation between a source and a target. Unlike traditional imaging optics, the techniques involved do not attempt to form an image of the… … Wikipedia
photography — I (New American Roget s College Thesaurus) Picture taking Nouns 1. photography, picture taking; aerial, architectural, available light, candid, digital, fashion, fine art, infrared, laser, paper negative, print, product, scenic, still, stereo… … English dictionary for students
Lens — 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 … Medical dictionary

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