Title:
REFLECTOR OF VEHICULAR LAMP
Document Type and Number:
Japanese Patent JP3122833
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To achieve both formation of sharp cutlines and diffusion of light in the horizontal direction, in the reflector of a vehicular lamp whose width is greater in the vertical direction than in the horizontal direction as seen from the front.
SOLUTION: This reflector 1 has a front shape that is greater in width in the vertical direction than in the horizontal direction, and the area 4 of its reflecting surface 2 which is located above a horizontal plane containing the main optical axis of the reflector 1 is divided into two areas 5, 6 along the vertical direction. The first uppermost area 5 is such that a filament image projected thereby contributes to the formation of cutlines. The second area 6 located immediately below the area 5 is such that a filament image formed thereby contributes to the formation of a pattern of projection that is most diffused in the horizontal direction. The area 9 of the reflecting surface 2 which is below the horizontal plane containing the main optical axis of time reflector 1 is such that the enlargement in the horizontal direction of its pattern of projection is made smaller than that of the pattern of projection formed by the second area 6. A circular hole 3 for inserting an electric bulb is formed across the second area 6 and the area 9 therebelow so as not to affect the first area 5.
Inventors:
Naoki Uchida
Application Number:
JP19412995A
Publication Date:
January 09, 2001
Filing Date:
July 07, 1995
Export Citation:
Assignee:
Koito Manufacturing Co., Ltd.
International Classes:
F21S8/10; F21V7/00; F21V7/09; (IPC1-7): F21S8/10; F21V7/09
Domestic Patent References:
| JP658761B2 | ||||
| JP241124B2 |
Attorney, Agent or Firm:
Yuji Komatsu