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1. (CN101223829) High voltage discharge lamp operation method, operation device, light source device, and projection type image display device

Office : China
Application Number: 200680025830.3 Application Date: 11.07.2006
Publication Number: 101223829 Publication Date: 16.07.2008
Grant Number: 101223829 Grant Date: 07.09.2011
Publication Kind : B
Prior PCT appl.: Application Number:PCTJP2006313744 ; Publication Number:2007010781 Click to see the data
IPC:
H05B 41/24
H05B 41/288
G03B 21/14
H04N 5/74
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
41
Circuit arrangements or apparatus for igniting or operating discharge lamps
14
Circuit arrangements
24
in which the lamp is fed by high-frequency ac
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
41
Circuit arrangements or apparatus for igniting or operating discharge lamps
14
Circuit arrangements
26
in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
28
using static converters
288
with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21
Projectors or projection-type viewers; Accessories therefor
14
Details
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
74
Projection arrangements for image reproduction, e.g. using eidophor
CPC:
H05B 41/38
G03B 21/2026
H04N 9/3114
H04N 9/3155
H05B 41/2882
H05B 41/2928
Y02B 20/208
Applicants: Matsushita Electric Ind Co., Ltd.
松下电器产业株式会社
Inventors: Ikeda Masaru
池田胜
Ono Syunsuke
小野俊介
Ozasa Minoru
小笹稔
Yamamoto Masahiro
山本匡宏
Yamada Go
山田刚
Agents: wangyue liuzong jie
中国专利代理(香港)有限公司 72001
中国专利代理(香港)有限公司 72001
Priority Data: 207414/2005 15.07.2005 JP
Title: (EN) High voltage discharge lamp operation method, operation device, light source device, and projection type image display device
(ZH) 高压放电灯的点亮方法、点亮装置、光源装置以及投射型图像显示装置
Abstract: front page image
(EN) There is provided a method for operating a high voltage discharge lamp capable of increasing the service life of the discharge lamp. The operation method for turning ON the high voltage discharge lamp and maintaining the ON state is as follows. When the time elapse after the turning ON of the high voltage discharge lamp is within a predetermined condition (for example, 5 minutes or less have elapsed after turning ON), constant current control is performed if the lamp voltage is lower than switching voltage (here, a first voltage value V1) and constant power control is performed to maintain the lamp power at a power value W1 if the lamp voltage is equal to or above the switching voltage. After the predetermined condition (time elapse after turning ON is 5 minutes) is exceeded, the constant power control is performed by lowering the value of the switching voltage from the first voltage value V1 to the second voltage value V2. If the lamp voltage is equal to or above the switching voltage lowered. the lamp power is maintained at power value W1.
(ZH)

本发明提供一种能使高压放电灯长寿命化的点亮方法。使高压放电灯点亮开始并使其点亮维持的点亮方法是,从高压放电灯的点亮开始点亮经过时间在规定条件(例如,点亮经过时间是5分钟)以内的情况下,当灯电压未满切换电压(在此是第1电压值(V1))时进行恒流控制,当灯电压为切换电压以上时进行将灯功率维持在功率值(W1)的恒功率控制,在超过上述规定条件(点亮经过时间是5分钟)之后,使切换电压值从第1电压值(V1)降到第2电压值(V2),当灯电压为上述下降后的切换电压以上时,进行将灯功率维持在功率值(W1)的恒功率控制。


Also published as:
JPWO2007010781US20090115974JP4682202WO/2007/010781