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EP0273353A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Automotive headlight of projector type

Assignee: Ichikoh Industries Ltd
•
Filing: 1987-12-21
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Granted: —
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Expires: 2007-12-21
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Abstract

Abstract The automotive headlight of projector type comprises a reflector (10), a lamp bulb (12) as light source disposed near the focus of said reflector, a convex lens (14) which projects frontwardly the light emitted from the lamp bulb (12), reflected by the reflector (10) and then converged to a predetermined light collecting area, and a light transmitting means (20,26) through which the light (A) projected directly from the lamp bulb frontwardly. The light (A) emitted directly from the lamp bulb frontwardly is positively projected frontwardly through the light transmitting means (20,26) without passing through the convex lens (14). So the zones surrounding the illuminated zone are blurred. The luminous intensity of the zone near the boundary between the illuminated and non-illuminated zones can be gradually decreased as going outwardly away from the projetor axis (x-x) into the non-illuminated zone witout any influence on the illumination distribution of the zone illuminated by the light projected through the convex lens (14).

Inventors

  • 👤 Yutaka Nakata

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 03:09
CPC Classifications
F; F21; F21S; F21S41/00; F21S41/20; F21S41/28

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 78 words
An automotive headlight of projector type, having a reflector, a lamp bulb disposed as light source near the focus of said reflector and a convex lens projecting frontwardly the light emitted from said lamp bulb, reflected by said reflector and then converged to a predetemined light collecting area, comprising: light transmitting means provided on a plane in which said convex lens is provided and through which the light emitted directly from said lamp bulb frontwardly can be passed.
Claim 2
Dependent Claim 78 words
An automotive headlight of projector type, having a reflector, a lamp bulb disposed as light source near the focus of said reflector and a convex lens projecting frontwardly the light emitted from said lamp bulb, reflected by said reflector and then converged to a predetemined light collecting area, comprising: light transmitting means provided on a plane in which said convex lens is provided and through which the light emitted directly from said lamp bulb frontwardly can be passed.
Claim 3
Dependent Claim 39 words
An automotive headlight according to Claim 1, said light transmitting means comprising an opaque panel disposed in the installation plane of said convex lens and surrounding the latter and at least a light transmitting area formed on said panel.
Claim 4
Dependent Claim 16 words
An automotive headlight according to Claim 2, said light transmitting area being a physically formed opening.
Claim 5
Dependent Claim 24 words
An automotive headlight according to Claim 3, said opening being provided one on each of the right and left sides of said convex lens.
Claim 6
Dependent Claim 25 words
An automotive headlight according to Claim 4, in which there are provided dispersion prisms in the paths, respectively, of the lights having passed said apertures.

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