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.
Patent No.:
Date of Patent:
May. 17, 1994
Filed:
Nov. 25, 1992
Johannes A Bjorner, Woodbury, CT (US);
Kevin Y Hamada, Danbury, CT (US);
Kenneth A Lais, Danbury, CT (US);
United Parcel Service of America, Inc., Atlanta, GA (US);
Abstract
An apparatus for providing uniform illumination to a surface includes a chamber defined by a wall, the wall having an opaque wall portion and a partially transparent wall portion. A light source such as a flash lamp, is mounted in the chamber. The interior surface of the chamber wall is light-reflective. The partially transparent wall portion has transparent apertures which permit light to exit the light chamber. The partially transparent wall portion has a first section with a first average transparency and a second section with a second average transparency. In operation, the apparatus completely covers a target surface while light generated by the light source either directly exits the light chamber through the transparent apertures or is reflected off the reflective interior surfaces of the light chamber before exiting the light chamber through the transparent apertures, uniformly illuminating the target surface.