Patent · US Expired

Diffusion device for flash gun

US4539624A · kind A · utility

9Cited by
4References
4Claims
0Family size

Inventor

Key dates

Filing dateAug 10, 1984
Grant dateSep 3, 1985
Priority date
Expiry dateAug 10, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B2215/0546
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A diffusion device for a flash gun is provided in the form of a translucent box-like structure which fits on the end of a commercial flash gun. In accordance with one embodiment of the invention, opaque shields are provided for the front and back of the diffusion device which can be selectively added or removed to produce special effects. In accordance with another aspect of the invention, a slot is provided in the top of the diffusion device for retaining a reflector.

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