| 摘要 |
A compact dove prism, for use in the visible UV and IR range, of substantially reduced dimensions and quantity of optical material for a performance equal to that, or even better than that of equivalent size conventional dove prisms. The optical transmission is better than that of conventional prisms of equal outer dimensions. The novel dove prism is less sensitive than conventional dove prisms to a deviation of incident light beams which are not quite parallel. The dove prism comprises two optical wedges (18,19) attached to a mirror (12), with their bases parallel with each other, said adjacent bases being at a certain distance from each other. Between the wedges is air, a vacuum, or any desired gaseous medium. The dove prisms are of much smaller weight and are considerably less expensive than conventional ones. <IMAGE>
|
