Illumination – Vehicle steering mechanism or element moves pivoted lamp or... – Tie rod element controlled
Patent
1991-11-19
1993-09-07
Cole, Richard R.
Illumination
Vehicle steering mechanism or element moves pivoted lamp or...
Tie rod element controlled
362293, F21M 305
Patent
active
052435016
ABSTRACT:
An automotive headlamp employing a discharge lamp as its light source in which the emission of harmful ultraviolet ray is eliminated in the output light beam. The headlamp includes a lamp body, a reflector mounted in the lamp body, and a discharge bulb mounted in a bulb insertion hole in the rear portion of the reflector. The discharge bulb is composed of a lamp base, a pair of long and short lead supports projecting forward from the lamp base, the discharge lamp, a pair of lead wires extending in respective forward and rearward directions from front and rear end portions of the discharge lamp, and forward and rear metal supports welded to the long and short lead supports and to respective ones of the lead wires so as to support the discharge lamp at its opposite ends on the long and short lead supports. The forward end of the longer lead support terminates at a position substantially corresponding to a front end edge of the front portion of the discharge lamp. An ultraviolet-ray shielding globe encloses the discharge lamp so as to cut ultraviolet rays from light emitted by the discharge lamp. A front end portion of the ultraviolet-ray shielding globe is tapered so as not to interfere with light reflected from a circumferential edge portion of the reflector around the bulb insertion hole.
REFERENCES:
patent: 5107405 (1992-04-01), Makita
patent: 5113330 (1992-05-01), Makita
patent: 5130904 (1992-07-01), Ohshio et al.
patent: 5132881 (1992-07-01), Wakimizu et al.
patent: 5180218 (1993-01-01), Ohshio et al.
Makita Hiroyuki
Ohshio Hirohiko
Cole Richard R.
Koito Manufacturing Co. Ltd.
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