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. 01, 2010
Filed:
Nov. 21, 2006
Kouki Hozumi, Hachioji, JP;
Takahiro Amanai, Sagamihara, JP;
Toru Miyajima, Hachioji, JP;
Masahito Watanabe, Hachioji, JP;
Masashi Hankawa, Hachioji, JP;
Kazuya Nishimura, Akiruno, JP;
Kouki Hozumi, Hachioji, JP;
Takahiro Amanai, Sagamihara, JP;
Toru Miyajima, Hachioji, JP;
Masahito Watanabe, Hachioji, JP;
Masashi Hankawa, Hachioji, JP;
Kazuya Nishimura, Akiruno, JP;
Olympus Imaging Corp., Tokyo, JP;
Abstract
A zoom lens system includes, in order from an object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. During zooming from a wide-angle end to a telephoto end, a space between the first lens unit and the second lens unit narrows, at least the second lens unit moves only toward the object side, and the third lens unit is constituted of one positive lens.