Patent · US Expired

Optical apparatus

US6270266A · kind A · utility

10Cited by

2References

11Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Tsuyoshi Fukuda · Cincinnati, US
Tatsuo Konno · Yokohama, JP
Toshio Matsumoto · Tenri, JP

Key dates

Filing date	Sep 16, 1991
Grant date	Aug 7, 2001
Priority date	—
Expiry date	Sep 16, 2011

Classification

Technology area (CPC G)Physics
CPC primaryG03B17/14
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In an optical apparatus having a mount adapted to be rotated to be attached to and detached from a mount of another apparatus, the mount of the optical apparatus is molded by plastic material, and concave and convex portions are provided on an abutment surface of the mount of the optical apparatus to reduce the sliding area, thereby making the scratches caused by the sliding inconspicuous.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.