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periscopic
 periscopeLight enters the top lens of a periscope, reflects off a mirror set at a 45 degree angle, travels down the periscope tube, and reflects off a second mirror, also set at a 45 degree angle. Light that reflects off the second mirror exits through the bottom lens and into the eye of the user.per·i·scope P0196700 (pĕr′ĭ-skōp′)n. Any of various tubular optical instruments that contain reflecting elements, such as mirrors and prisms, to permit observation from a position displaced from a direct line of sight.
per′i·scop′ic (-skŏp′ĭk), per′i·scop′i·cal (-ĭ-kəl) adj.periscopic (ˌpɛrɪˈskɒpɪk) adj(of a lens) having a wide field of view ˌperiˈscopically advper•i•scop•ic (ˌpɛr əˈskɒp ɪk)
adj. 1. (of certain lenses in special microscopes, cameras, etc.) giving distinct vision obliquely, or on all sides. 2. pertaining to periscopes or their use. [1795–1805] Translations
EncyclopediaSeeperiscopeperiscopic
periscopic [per″ĭ-skop´ik] affording a wide range of vision.per·i·scop·ic (per'i-skop'ik), Denoting that which gives the ability to see objects to one side as well as in the direct axis of vision. [peri- + G. skopeō, to view] per·i·scop·ic (per'i-skop'ik) Denoting that which gives the ability to see objects to one side as well as in the direct axis of vision. [peri- + G. skopeō, to view] |