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. 25, 2013
Filed:
Mar. 18, 2011
Hitoshi Fujino, Tajimi, JP;
Yoshifumi Nakamura, Nagoya, JP;
Hiroyuki Ominato, Nagoya, JP;
Hiroki Yukawa, Nagoya, JP;
Hitoshi Fujino, Tajimi, JP;
Yoshifumi Nakamura, Nagoya, JP;
Hiroyuki Ominato, Nagoya, JP;
Hiroki Yukawa, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
Abstract
A scanning optical apparatus includes: a light source; a first optical element configured to convert light emitted from the light source into a beam of light; a second optical element configured to convert the beam of light having passed through the first optical element into a linear image extending in a main scanning direction; a deflecting mirror configured to deflect the beam of light having passed through the second optical element in the main scanning direction; and a third optical element configured to convert the beam of light having been deflected by the deflecting mirror into a spot-like image and focus it on a target surface to be scanned. The third optical element is a single lens having a pair of opposite lens surfaces, and each of the pair of lens surfaces is aspheric in a main scanning plane to satisfy the formula: