Mathematical Instruments: Optical instrumentsLockwood & Company, 1871 |
Загальні терміни та фрази
achromatic adjustment angular aperture aperture arrangement attached axis binocular parallax body camera centre chromatic aberration chromatic dispersion circular cloth boards colours concave condensing construction convex convex lens crystal diameter diaphragm direction disc distance distant object distinct vision Ditto ditto divergent draw-tube edge Edition Engineering enlarged equal eye-glass eye-lens eye-piece field of view fixed focal length focus goniometer ground glass horizontal inch inclination instrument lantern lens lenses magic lantern magnifying power micrometer milled head mirror motion mounted moved negative Newtonian telescope object-glass object-piece object-speculum oblique opaque objects optical paper parallel pass pencils of light photographed piece pillar placed plane reflector plano-convex lens plate portion position Practical prism produced rack and pinion rectangle ruled reflected refracting refracting telescopes right angles round scale screen screw side slides speculum spherical aberration stage stand stereoscopic surface telescope tion Treatise tube vertical Woodcuts
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