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:
Dec. 17, 2013
Filed:
Dec. 07, 2011
Kenji Matsumoto, Wako, JP;
Kenji Matsumoto, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A seal member to be contacted with an observation object is provided at an open end of a lens barrel so that the observation object can be attracted to the lens barrel via the seal member and fixed in direct and close contact with the lens barrel when a vacuum is created in the lens barrel by a vacuum pump. In other words, instead of providing a sample chamber, the observation object is fixed in close contact with the lens barrel to prevent relative movement therebetween by a suction force even without a sample chamber. In this configuration, the interior of the lens barrel can be maintained in a vacuum state despite the absence of a sample chamber and no adverse effect occurs during observation because the lens barrel and the observation object are not moved relative to each other by vibration.