Patent · US Expired

Case and case holder

US7044295B2 · kind B2 · utility

7Cited by
15References
6Claims
0Family size

Inventor

Key dates

Filing dateNov 18, 2002
Grant dateMay 16, 2006
Priority date
Expiry dateNov 18, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11B33/0427
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A case that makes visible the surface of an object kept therein through one of its sides is provided.The case, which comprises a top (1), a bottom (2) and at least one side (101, 201, 202), is a case for keeping an object therein, and at least one of the sides (101, 201, 202) has a transparent member which performs at least one of the functions of converging, diverging, or bending the path of, the light reflected from the object inside the case. As the transparent member, a convex lens, a concave lens or a prism can be used. Where a lens is to be used, particularly a non-central part of the lens can be suitably utilized.

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