Title:
MANUFACTURE OF HALOGEN ELECTRIC BULB WITH SELECTIVE TRANSMITTING FILM
Document Type and Number:
Japanese Patent JPH04370658
Kind Code:
A
Abstract:
PURPOSE: To accomplish a halogen lamp with selective transmissive film, with which the color, etc., of food appears vividly, by heating a glass powder and melting, and sintering a glass bulb with neodium oxide powder.
CONSTITUTION: A solution containing neodium oxide powder and glass powder is applied to the outer surface of a glass bulb 2 accommodating a filament, and the glass powder is heated and melted, and thus the glass bulb 2 is sintered with neodium oxide. Thereby a selective transmissive film 3 consisting of neodium oxide and glass is formed over the outer surface of the glass bulb 2, and a halogen lamp lined with such a film is achieved with which the color, etc., of food appears vividly.
Inventors:
SUZUKI SHINJI
Application Number:
JP14877591A
Publication Date:
December 24, 1992
Filing Date:
June 20, 1991
Export Citation:
Assignee:
MATSUSHITA ELECTRONICS CORP
International Classes:
H01K1/32; H01K3/00; (IPC1-7): H01K1/32; H01K3/00
Attorney, Agent or Firm:
Akira Kobiji (2 outside)