高圧放電ランプ点灯装置

Title:

高圧放電ランプ点灯装置

Document Type and Number:

Japanese Patent JP4639636

Kind Code:

B2

Abstract:

To provide a high-pressure discharge lamp lighting device capable of shifting to arc discharge without going out at start of lighting.

The high-pressure discharge lamp lighting device comprises a feeder system, and a high-pressure discharge lamp 10 sealed with mercury of 0.15 mg/mm3or more. It is characterized in that in a smoothing circuit 2, a small capacity capacitor Cx and a starting performance improving circuit 21 are connected in parallel with each other in an output end of a chopper circuit 1, and a large capacity capacitor C1 is connected in series with a parallel circuit of a resistor R1, a switch SW, and a diode D1.

Inventors:

Yoshikazu Suzuki
Tomoyoshi Arimoto

Application Number:

JP2004139375A

Publication Date:

February 23, 2011

Filing Date:

May 10, 2004

Export Citation:

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Assignee:

Ushio, Inc.

International Classes:

H05B41/24; H05B41/18; H05B41/282

Domestic Patent References:

JP8213180A
JP3188873B2
JP2004134162A

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