Binocular viewing device
AssigneeU.S. Philips Corporation
InventorWolfgang Dietz
Life of this patent
Estimating the term…
Abstract
In a binocular viewing device for observing one image with both eyes simultaneously, the image is observed directly via a beam splitter with a first ocular, and the image is observed indirectly with a second ocular via an optical imaging system which forms an intermediate image to which the second ocular is adjusted. The optical imaging system may comprise a collimator objective, a telescope objective and an image-inverting deflecting prism.
Claims7
A binocular viewing device, for viewing a single image simultaneously with both eyes, comprising:
- a beam splitter, arranged in front of the image, for splitting the image into a first beam and a second beam;
- a first ocular, arranged in front of the beam splitter for intercepting the first beam, said ocular being adjusted for viewing the image directly through the beam splitter;
- an optical imaging system, arranged in front of the beam splitter for intercepting the second beam, said imaging system forming an intermediate image in an image plane;
- and
- a second ocular, arranged in front of the optical imaging system, said ocular being adjusted to view the image at the intermediate image plane.
A binocular viewing device, for viewing a single image simultaneously with both eyes, comprising a beam splitter, first and second oculars, and a deflection prism, CHARACTERIZED IN THAT:
- the first ocular is adjusted for viewing the image directly through the beam splitter;
- the device further comprises an optical imaging system for forming an intermediate image at an intermediate image plane, said optical imaging system comprising (i) a collimator objective having an object focal plane which corresponds substantially with the image, (ii) a telescope objective arranged in front of the collimator objective and having a focal length which is substantially the same as that of the collimator objective, said telescope objective having an image focal plane corresponding to the intermediate image plane, and (iii) the deflection prism, said deflection prism comprising an image inverting prism arranged in front of the telescope objective;
- and
- the second ocular is adjusted for viewing, via the optical imaging system, the image at the intermediate image plane.
Dependencies are inferred from the claim text.