United States Patent [19] [ii] Patent Number: 4,482,228
Fujita [45] Date of Patent: Nov. 13, 1984
[54] LENS CHANGEOVER MECHANISM FOR USE IN PHOTOGRAPHIC CAMERA
[75] Inventor: Susumu Fujita, Kobe, Japan
[73] Assignee: Fuji Photo Film Co., Ltd., Kanagawa, Japan
[21] Appl. No.: 521,807
[22] Filed: Aug. 10, 1983
[30] Foreign Application Priority Data
Aug. 10, 1982 [JP] Japan 57-139533
Jan. 11, 1983 [JP] Japan 58-3044
[51] Int. CU G03B 3/00
[52] U.S. CI 354/195.12; 350/422
[58] Field of Search 354/195.1, 195.11, 195.12;
350/422
[56] References Cited
U.S. PATENT DOCUMENTS 3,887,930 6/1975 Bresson 354/195.12
3,890,626 6/1975 Ettischer 354/195.12
4,099,191 7/1978 Danan 354/195.12
4,110,005 8/1978 Bohm et al 350/422
4,119,983 10/1978 Tanaka 354/195.12
4,204,760 5/1980 Kobayashi 354/195.12
4,277,158 7/1981 Zawodny 354/195.12
Primary Examiner—A. A. Mathews
Attorney, Agent, or Firm—Sughrue, Mion, Zinn,
Macpeak, and Seas
[57] ABSTRACT
A lens changeover mechanism for use in a photographic camera, including a master lens and a conversion lens. The mechanism further includes a changeover ring, a lens barrel which is axially movably fitted into the changeover ring, a focusing member, a focus guide which is slidably supported, for focusing adjustment, by the lens barrel, a changeover member which is pivotally supported by a camera body, and an auxiliary focus guide which is supported by the changeover member.
6 Claims, 8 Drawing Figures
