Define Principal ray. Principal ray synonyms, Principal ray pronunciation, Principal ray translation, English dictionary definition of Principal ray. the line drawn through the point of sight perpendicular to the perspective plane. See also: Principal We
8, the entrance surface 61a and the exit surface 61b of the first scanning lens 61 and the entrance surface 62a and the exit surface 62b of the second scanning lens 62 are concave toward the light deflector (polygon mirror) 5 in the sub-scanning section. However, exemplary embodiments ...
8, the entrance surface 61a and the exit surface 61b of the first scanning lens 61 and the entrance surface 62a and the exit surface 62b of the second scanning lens 62 are concave toward the light deflector (polygon mirror) 5 in the sub-scanning section. However, exemplary embodiments ...