Vehicular lamp
AssigneeIchikoh Industries, Ltd.
InventorKiyohiro Akiyama
Life of this patent
Estimating the term…
Abstract
A lens (2) disposed in front of a lamp housing (11) has a light transmitting portion (2a) thereof zoned at the rear side into a central section (X) and lateral sections (Y) at both sides thereof, the central and lateral sections (X, Y) being additionally divided into blocks (A, B, C, D, E, F, G), respectively, and prism elements (p) in the blocks are configured so that those (p) in the central section (X) control reflected light from a reflector (12) as reference light, and those (p) in the lateral sections (Y) control direct light from a light source bulb (10) as reference light, thereby providing illumination ranges (J, K) within a light distribution range (LDR) conforming to a light distribution specification (S).
Claims4
A vehicular lamp comprising:
- a light source bulb;
- a reflector for reflecting light from the light source bulb;
- and
- a lens provided with a light transmitting portion formed with a set of prism elements for reflected light from the reflector and direct light from the light source bulb to strike thereto, the set of prism elements being configured for controlling the reflected light and the direct light to give a distribution of required luminous intensities in a prescribed light distribution range.
Dependencies are inferred from the claim text.