Patent Number: 6,670,764

Title: Discharge lamp unit with noise shields and noise control method fordischarge lamp unit

Abstract: A discharge lamp unit with noise shields includes a discharge lamp, adischarge lamp control circuit, a filter circuit, the first and the secondshield cases, and a power supply. The first shield case shields adischarge lamp control circuit and a filter circuit. The second shieldcase exclusively shields the filter circuit. Further, a ground wire of thefilter circuit and the first shield case are electrically connected. Stillfurther, a ground wire of the control circuit and the second shield caseare electrically connected.

Inventors: Aida; Kenji (Kariya, JP)

Assignee:

International Classification: H05B 41/292 (20060101); H05B 41/285 (20060101); H05B 41/28 (20060101); H01J 013/46 (); H01J 029/88 ()

Expiration Date: 12/32016