| 摘要 |
Optical system comprising a Barlow amplifier and adapted to make it possible to change the magnification of an image formed by an objective without displacing the image by varying the length of the optical path travelled in dependence upon the enlargement of said image. This optical device is characterized by the fact that it comprises an assembly of reflecting plane surfaces some of which are pivotally mounted so as to permit an increase in the number of reflections undergone by said rays at the same time as said magnification. The device is particularly applicable to telescopes and to binoculars, which may be provided with means for increasing their stereoscopic effect.
|
