Afocal telescope converter attachment for a binocular or similar article

Description

FIG. 1 is a front elevational view of an afocal telescope converter attachment for a binocular or similar article showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof showing a binocular in broken lines for illustrative purposes only;

FIG. 4 is a side elevational view thereof; and

FIG. 5 is a cross-sectional view thereof, taken along line 5--5 of FIG. 3.

Referenced Cited
U.S. Patent Documents
D194129 November 1962 Baab et al.
D271698 December 6, 1983 Shishido
D275496 September 11, 1984 Condon
2428719 October 1947 Nemeth
4448500 May 15, 1984 Marling et al.
4749271 June 7, 1988 Nagler
Other references
  • Sky and Telescope Magazine, Feb. 1983, bottom of p. 106, Diagonal Prism Attachment on Questar.RTM. Telescope. Clave Beamsplitter Attachment, Brochure. 1985 Spectrum Catalog, top of p. 11, Star Diagonal #02373. 1985 Spectrum Catalog, bottom of p. 16, Tele-Lens to Spotting Scope Converter. 1985 Spectrum Catalog, p. 21, Kenko Spotting Scopes. Sky and Telescope Magazine, Oct. 1985, back cover, Diagonal Mirror and Prism Attachments on Celestron.RTM. Telescope and Finder Scope. 1981 Celestron Catalog, p. 43, center of page, Off-Axis Guide Body.
Patent History
Patent number: D312087
Type: Grant
Filed: Nov 25, 1988
Date of Patent: Nov 13, 1990
Inventor: Jeffrey R. Charles (Camp Verde, AZ)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris V. Coles
Application Number: 7/276,147
Classifications