Title:
ランプ
Document Type and Number:
Japanese Patent JP3676811
Kind Code:
B2
Abstract:
The electric lamp has a quartz glass lamp vessel (10) in which an electric element (3, 4) is accommodated. The lamp vessel locally has a light-absorbing, non reflective coating (11, 12). The coating mainly consists of 2 to 10% by weight of glass which is free of lead oxide and has a softening point between 600 DEG and 700 DEG C. Iron 50 to 60% by weight, primarily in metallic form, and manganese oxide, 30 to 55% by weight, are dispersed therein.
Inventors:
Scholar Claus
Application Number:
JP51587996A
Publication Date:
July 27, 2005
Filing Date:
November 02, 1995
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H01J61/35; H01J61/40; H01K1/32; (IPC1-7): H01J61/35; H01K1/32
Domestic Patent References:
| JP287456A | ||||
| JP2257565A | ||||
| JP6177635A |
Foreign References:
| GB1422491A | ||||
| US4794297 |
Attorney, Agent or Firm:
Kosaku Sugimura