an apochromatic lens or instrument
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AnswerCrossword Clue
apochromatan apochromatic lens or instrument
apochromatsAPOCHROMAT, an apochromatic lens or instrument
periscopic(of a lens or an optical instrument) Giving a wide field of view
microscopean optical instrument consisting of a lens or combination of lenses for making enlarged images of minute objects
microscopesMICROSCOPE, an optical instrument consisting of a lens or combination of lenses for making enlarged images of minute objects
eyepiecethe lens nearest the eye in an optical instrument
eyepiecesEYEPIECE, the lens nearest the eye in an optical instrument
ocularan eyepiece (the lens nearest the eye in an optical instrument)
focometeran instrument for measuring the focal length of a lens also FOCIMETER
ocularsOCULAR, an eyepiece (the lens nearest the eye in an optical instrument)
focimeteran instrument for measuring the focal length of a lens also FOCOMETER
focimetersFOCIMETER, an instrument for measuring the focal length of a lens also FOCOMETER
focometersFOCOMETER, an instrument for measuring the focal length of a lens also FOCIMETER
binocularsAn optical instrument with a lens for each eye, used for viewing distant objects
gonioscopean instrument used for examining the structures of the eye between the cornea and the lens that are not directly visible
gonioscopesGONIOSCOPE, an instrument used for examining the structures of the eye between the cornea and the lens that are not directly visible