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:
Feb. 19, 2019
Filed:
May. 02, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Yasunori Kimura, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image pickup apparatus which is able to obtain images with high sharpness by improving circulation of air in the image pickup apparatus to prevent formation of condensation and frost on a cover, which protects a lens unit, while ensuring imperviousness to light. An illumination unit provided around a lens unit emits illumination light toward a subject through the cover placed on a subject side of the lens unit. An annular light-shielding member between the lens unit and the cover prevents the illumination light from reflecting on the cover to enter the lens unit and shields reflected light of the illumination light. The light-shielding member has a circulation path that enables circulation of air between a space on the subject side of the lens unit and on an inner peripheral side of the light-shielding member and a space on an outer peripheral side of the light-shielding member.