X-ray photographing apparatus and collimator

Patent metadata

Field	Value
Publication number	US-9820705-B2
Application number	US-201514941922-A
Country	US
Kind code	B2
Filing date	Nov 16, 2015
Priority date	Nov 14, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

Provided is an X-ray photographing apparatus including an X-ray source for generating and irradiating an X-ray; a collimator for controlling an X-ray photographing area to which an X-ray is irradiated by the X-ray source; a projector for generating and projecting a visible ray image by using image signals; a reflection mirror for reflecting the visible ray image projected by the projector to an X-ray photographing area; and a main controller for controlling the projector to match a light irradiation field corresponding to the visible ray image projected to the X-ray photographing area to the X-ray irradiation field.

First claim

What is claimed is:

1. An X-ray imaging apparatus comprising:
an X-ray source configured to generate and irradiate an X-ray to an X-ray imaging area;
a collimator configured to control the X-ray imaging area;
a projector configured to generate and project a visible image using image signals;
a reflection mirror configured to reflect the visible image projected by the projector to the X-ray imaging area;
an optical apparatus in optical communication with the reflection mirror and configured to focus an imaging light corresponding to the visible image projected to the X-ray imaging area;
an image sensor configured to receive the imaging light focused at the optical apparatus; and
a main controller configured to control the projector to match a light irradiation field corresponding to the visible image projected to the X-ray imaging area to an X-ray irradiation field corresponding to the X-ray irradiated to the X-ray imaging area.

2. The X-ray imaging apparatus of claim 1 , wherein the projector comprises:
an image generator configured to generate the visible image using the image signals;
a plurality of lenses configured to focus the visible image generated by the image generator; and
a projector controller configured to control at least one of the image generator and at least one of the plurality of lenses.

3. The X-ray imaging apparatus of claim 2 , wherein the image generator comprises:
a display device configured to convert the image signals to a projection image at an active area; and
a light source configured to generate a visible image from the projection image,
wherein the active area is a portion of the display device.

4. The X-ray imaging apparatus of claim 3 , wherein the projector controller is further configured to control a location of the active area of the display device, thereby controlling a location of the visible image projected by the projector.

5. The X-ray imaging apparatus of claim 2 , wherein the projector controller is further configured to control a distance between each lens of the plurality of lenses, thereby controlling a size of the visible image projected by the projector.

6. The X-ray imaging apparatus of claim 2 , wherein the projector controller is further configured to control a distance between each lens of the plurality of lenses, thereby controlling a focus of the visible image projected by the projector.

7. The X-ray imaging apparatus of claim 3 , wherein the display device is a deformable mirror device (DMD).

8. The X-ray imaging apparatus of claim 3 , wherein the display device is a liquid crystal on silicon (LCoS).

9. The X-ray imaging apparatus of claim 3 , wherein the display device is an organic light emitting diode (OLED).

10. The X-ray imaging apparatus of claim 1 , wherein the visible image comprises information regarding a imaging operation of the X-ray imaging apparatus or information regarding a target object to be photographed by the X-ray imaging apparatus.

11. The X-ray imaging apparatus of claim 1 , wherein the main controller is configured to adjust an orientation of the optical apparatus.

12. The X-ray imaging apparatus of claim 1 , wherein the optical apparatus is a revolving mirror.

13. The X-ray imaging apparatus of claim 1 , wherein the optical apparatus is a beam splitter.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Dong-Hwan

Classifications

• G21K1/04

  using variable diaphragms, shutters, choppers · CPC title

• A61B6/461

  Displaying means of special interest · CPC title

• A61B6/467

  characterised by special input means · CPC title

• A61B6/542

  involving control of exposure · CPC title

• A61B6/06 Primary

  Diaphragms · CPC title