英和和英

an {optical instrument} called spectrometer

an irreducible minimum

osmotic pressure

an optical instrument

optically distorted

(the) focal distance [length]

a chemical compound that exhibits the property of optical isomerism

fusibility

a focal plane

in geometric optics, a group of light rays

the optic (or optical) axis of the eye

cardinal points of a lens or lens system

an optical instrument, called spectroscope

a measuring instrument for determining optical or photographic density

a lens or mirror used to concentrate light on an object, called a condenser

chromatic aberration

a phenomenon in which isomers of a material differ in their effects on polarized light, called optical isomerism

an optical instrument for spectrographic analysis

in optics, a phenomenon called total reflection

an optical instrument

measuring the optical density of a substance by shining light on it and measuring its transmission

an optical device called a collimator

an optical device for viewing photographic transparencies

an optical device for viewing stereoscopic photographs

an optical device called radio telescope

an optical instrument called mineral microscope

pertaining to a kind of distorting optical system

an optical device called {etalon}

apparatus for observation and measurement of optical phenomena

an electronic optical device that measures distance based on the velocity of light