COLLIMATOR


Meaning of COLLIMATOR in English

noun Date: 1865 a device for producing a beam of parallel rays (as of light) or for forming an infinitely distant virtual image that can be viewed without parallax, a device for obtaining a beam (as of particles) of limited cross section

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.