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.
Patent No.:
Date of Patent:
Mar. 07, 1989
Filed:
Jan. 05, 1988
Nobufumi Mori, Kanagawa, JP;
Takayuki Katoh, Kanagawa, JP;
Junji Miyahara, Kanagawa, JP;
Tetsuo Oikawa, Tokyo, JP;
Yoshiyasu Harada, Tokyo, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Jeol Ltd., Tokyo, JP;
Abstract
A transmission-type electron microscope using a sensitive two-dimensional sensor in its micrograph-taking section acts as a recording medium for an electron beam. When the sensor is illuminated with an electron beam, it stores the energy of the beam. When the sensor is subsequently illuminated with light, it releases the stored energy as light. In accordance with the invention, at least a portion of the micrograph-taking section includes a member for reducing the amount of x-rays produced or a member for absorbing x-rays to shield the sensor from x-rays.