JPH0431203U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a perspective view of a headlamp according to a first embodiment of the present invention with the lens removed, Figure 2 is a perspective view of a shade member and movable reflector of the same embodiment, and Figure 3 is a headlamp of the same embodiment. FIG. FIG. 4 is a longitudinal sectional view of a headlamp according to a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Lamp body, 12... Reflector, 12A... Upper side of the reflector which is an effective reflecting surface, 12B... Lower side of the reflector which is an effective reflecting surface, 12a... Predetermined area of the effective reflecting surface of the reflector, 12E... Predetermined concave portion which is a non-reflective surface area formed in the region, 20...discharge bulb, 21...discharge part which is a light emitting source, 30...shade member, 40
...Movable reflector, 40a...Front surface of the movable reflector, 40b...Rear surface of the movable reflector.

Claims (1)

[Claims for Utility Model Registration] (1) In the lamp body, a parabolic reflector, a discharge bulb having a discharge portion serving as a light emitting source near the focal position of the reflector, and a reflector located near the discharge portion; a shade member movable back and forth in the optical axis direction, and when the shade member moves rearward, a part of the light directed from the discharge part of the discharge bulb toward the reflector is blocked by the shade member to form a sub-beam. and when the shade member moves forward, the headlamp for an automobile is configured such that when the shade member moves forward, light directed from the discharge part of the discharge bulb toward the reflector is not blocked by the shade member and a main beam is formed, wherein the effective reflection surface of the reflector is A non-reflective surface area is formed in a predetermined area, and the shade member is provided with a movable reflector that moves together with the shade member, and this movable reflector
A headlamp for an automobile, characterized in that when the shade member moves rearward, it is located in front of the non-reflective surface area of the reflector and functions as an effective reflective surface in place of the non-reflective surface. (2) Inside the lamp body, a paraboloid-shaped reflector, a discharge bulb whose discharge portion, which is a light emitting source, is located near the focal point of the reflector, and a discharge bulb that is movable back and forth in the optical axis direction of the reflector near the discharge portion. A shade member is provided, and when the shade member moves backward, a part of the light directed from the discharge part of the discharge bulb toward the reflector is blocked by the shade member to form a sub-beam, and the shade member moves forward. In this case, the headlamp for an automobile is such that light directed from the discharge part of the discharge bulb toward the reflector is not blocked by the shade member and a main beam is formed, and the shade member includes a movable reflector that moves together with the shade member. The movable reflector is positioned in front of the reflector and functions similarly to the effective reflective surface of the reflector when the shade member moves backward, and the movable reflector functions in a predetermined area of the effective reflective surface of the reflector when the shade member moves forward. An automobile headlamp that blocks reflected light.