The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 03, 2008

Filed:

Aug. 02, 2006
Applicants:

Yongtao Tan, Beijing, CN;

Chen Zhang, Beijing, CN;

Yuqing LI, Beijing, CN;

Inventors:

Yongtao Tan, Beijing, CN;

Chen Zhang, Beijing, CN;

Yuqing Li, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21K 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

With a view to providing an X-ray imaging apparatus having a projector-collimator capable of adjusting an irradiation position of a light beam easily and accurately, a first luminous flux is made a luminous flux present within an orthogonal plate orthogonal to a y-axis direction which is an orthogonal direction and a second luminous flux present within the orthogonal plane is reflected and moved within the orthogonal plane to produce a light beam. Consequently, an irradiation position of the light beam over a subject can be adjusted in an independent manner by movement Δy in the orthogonal direction with use of a first screw and movement Δx within the orthogonal plane with use of a second crew. As a result, adjustment of an X-ray irradiation field position by an operator can be effected not only easily but also with a high accuracy.


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