| 摘要 |
<p>This heat energy is received through an entry objective of a receiving head by a detector mounted together with other components in a housing. The detector is stationary in the housing longitudinal axis, while the receiving head with the inlet objective, a prism and a mirror rotates about the axis as a bent light path. The prism rotates in addition in a plane perpendicular to the longitudinal axis, and this rotation is superposed on the main rotary motion. The mirror (3', 3") consists of two parts. The inlet objective (1) is before the mirror part (3'), and the prism (2) is before the part (3") so that an optical hinge is produced.</p> |
