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:
Jun. 06, 2017
Filed:
May. 12, 2016
Konica Minolta, Inc., Chiyoda-ku, Tokyo, JP;
Akira Taniyama, Toyokawa, JP;
So Yano, Ibaraki, JP;
Takahiro Matsuo, Toyokawa, JP;
Yasushi Nagasaka, Okazaki, JP;
Takaki Uemura, Seto, JP;
Masayuki Iijima, Okazaki, JP;
KONICA MINOLTA. INC., Chiyoda-Ku, Tokyo, JP;
Abstract
An optical writing device adopting a low cost and simple structure can obtain temperatures of light emitting elements. The device comprises a plurality of light emitting elements arranged linearly in a main scanning direction. The amount of light emitting of the light emitting elements changes by self-generated heat. The light emitting elements are divided into a plurality of groups. Each of the groups includes a prescribed number of light emitting elements. The device comprises a control unit for calculating the amount of heat generation of the light emitting elements for each of groups from clock time t0 to clock time t0+Δt. The control unit calculates the temperature for each of the groups at the clock time t0+Δt, based on the amount of heat generation from the clock time t0 to the clock time t0+Δt and the temperature at the clock time t0.