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.

Date of Patent:
Dec. 23, 1986

Filed:

Jun. 11, 1985
Applicant:
Inventors:

Koji Imabayashi, Toyonaka, JP;

Hiroshi Kawamura, Toyonaka, JP;

Shigeru Takeuchi, Moriyama, JP;

Masayoshi Shinobu, Kyoto, JP;

Shinobu Kawajiri, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358231 ; 358237 ; 358 60 ; 313478 ;
Abstract

A projecton device wherein a viscous body of transparent liquid is inserted between a CRT and an enlarging projection lens, which comprises: a ring-shaped spacer for determining the positional relation between the CRT and the lens unit provided therebetween; a ring-shaped packing provided between the CRT and the lens of the lens unit at the internal side of the spacer; a thin film section having elasticity provided as part of the packing; and a space provided between the spacer and the thin film section of the packing.


Find Patent Forward Citations

Imabayashi, Koji. (1986). Projection device (U.S. Patent No. 4631594). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4631594

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…