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:
Sep. 11, 2018
Filed:
Jun. 16, 2016
Masataka Uehira, Kanagawa, JP;
Kohji Sakai, Tokyo, JP;
Tomoyasu Hirasawa, Kanagawa, JP;
Tomomi Ishimi, Shizuoka, JP;
Masataka Uehira, Kanagawa, JP;
Kohji Sakai, Tokyo, JP;
Tomoyasu Hirasawa, Kanagawa, JP;
Tomomi Ishimi, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A light irradiation apparatus includes an irradiation unit including a light source to emit light to a process-target object, a light source driving circuit to drive the light source, a light source controller to control the light source driving circuit to change a light output level of the light source, and a light spot controller to control energy or energy density of a beam spot of the light on the process-target object depending on an operation mode, and a transition mode that one operation mode is being changed to another mode. The light spot controller sets the energy or energy density during the transition mode lower compared to either of the energy or energy density during the one operation mode before the transition mode and the energy or energy density during the another mode after the transition mode.