Display device for telescope system
AssigneeAsia Optical Co., Inc.
InventorChen-chen Liao
Life of this patent
Estimating the term…
Abstract
A display device (4) for a telescope system is disposed between a first image plane (10) and a second image plane (20) of the telescope system. The display device includes a signal emitter (41), a converging lens group (42) positioned adjacent to the signal emitter, and a dioptric imaging lens group (43) positioned adjacent to the converging lens group. The optical signal emitted by the signal emitter is first transmitted through the converging lens group, then incident onto the dioptric imaging lens group, and finally imaged onto the second image after reflection of the dioptric imaging lens group. Therefore, both the image size and brightness of the displayed signal viewed by the observer can maintain unchanged in spite of the magnification variation of the telescope system.
Claims15
A display device, being disposed between a first image plane and a second image plane of a telescope system, comprising:
- a signal emitter emitting a signal to be displayed in the form of a light beam;
- a converging lens group positioned adjacent to the signal emitter for condensing the signal light beam emitted by the signal emitter;
- and
- a dioptric imaging lens group positioned adjacent to the converging lens group, the dioptric imaging lens group comprising a dioptric prism and a trapezoidal prism, and the dioptric prism comprising a total reflection surface and a film-coating surface;
- wherein the signal light beam emitted by the signal emitter is incident into the trapezoidal prism through the converging lens group, and the total reflection surface and the film-coating surface sequentially reflect the signal light beam onto the second image plane of the telescope system for imaging.
A telescope system having a first image plane and a second image plane, comprising:
- an objective system positioned at the front of the telescope system for receiving a light beam reflected from the target to be observed and then focusing and imaging the light beam onto the first image plane;
- a magnification system positioned in the middle of the telescope system for magnifying, erecting and finally imaging the light beam from the first image plane onto the second image plane;
- an eyepiece system positioned at the rear of the telescope system for allowing the observer to view the image on the second image plane;
- and
- a display device positioned between the first image plane and the second image plane, and comprising a signal emitter for emitting a signal light beam, a converging lens group positioned adjacent to the signal emitter and a dioptric imaging lens group positioned adjacent to the converging lens group, wherein the dioptric imaging lens group comprises a dioptric prism and a trapezoidal prism, and the dioptric prism comprises a total reflection surface and a film-coating surface;
- wherein the signal light beam emitted by the signal emitter is incident into the trapezoidal prism through the converging lens group, and the total reflection surface and the film-coating surface sequentially reflect the signal light beam onto the second image plane for imaging.
Dependencies are inferred from the claim text.