Title:
FLUORESCENT LAMP AND LUMINAIRE
Document Type and Number:
Japanese Patent JP3424566
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fluorescent lamp and a laminaire, capable of irradiating with a lighting light having 3,700 K or less for correlated color temperature capable of improving the vividness of a color, even in a low color temperature area by improving the color of an article to be lighted more vividly.
SOLUTION: This fluorescent lamp is provided with a phosphor layer, mainly composed of a blue phosphor having 440-470 nm for light emission peak wavelength, a green phosphor having 505-530 nm for the light emission peak wavelength, a green phosphor having 540-570 nm for the light emission peak wavelength and a red phosphor having 600-670 nm for the light emission peak wavelength. A ratio I1/I2 of the peak height I1 of the light emission at 505-530 nm and the peak height I2 of the light emission at 540-570 nm is set at 0.06 or more, and the correlated color temperature is set at 3,700 K or less.
Inventors:
Toshio Mori
Hiromi Tomioka
Toru Higashi
Kenji Mukai
Tetsuji Takeuchi
Hiromi Tomioka
Toru Higashi
Kenji Mukai
Tetsuji Takeuchi
Application Number:
JP27491898A
Publication Date:
July 07, 2003
Filing Date:
September 29, 1998
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
C09K11/64; C09K11/78; C09K11/80; C09K11/81; H01J61/44; (IPC1-7): H01J61/44; C09K11/64; C09K11/78; C09K11/80; C09K11/81
Domestic Patent References:
| JP4324241A | ||||
| JP9161724A | ||||
| JP613045A | ||||
| JP9120797A | ||||
| JP855610A | ||||
| JP636746A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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