車両用灯具 - Koito Manufacturing Co., Ltd.

Title:

車両用灯具

Document Type and Number:

Japanese Patent JP7198712

Kind Code:

B2

Abstract:

To improve design characteristics when the light fixture is turned on in a vehicle light fixture including a plate-shaped light guide. The plate-shaped light guide (32) is configured such that light from five light sources (40A1, 40A2, 40A3, 40A4 and 40A5) is totally reflected by a plurality of reflective elements (32s) formed on a first plate surface (32a) on a rear surface side of the plate-shaped light guide, and then emitted forward of a light fixture unit from a second plate surface (32b) of the plate-shaped light guide. At that time, five light emitting regions (32A1, 32A2, 32A3, 32A4 and 32A5) are arranged at intervals in a horizontal direction in the plate-shaped light guide (32), and then the reflective elements (32s) are arranged in a state of being continuously side by side along a line L extending in a direction intersecting the horizontal direction in each of the light emitting regions (32A1 to 32A5). Each reflective element (32s) is formed in a substantially concave spherical surface shape. In addition, the light sources (40A1 to 40A5) are configured to be able to be individually turned on in a state of being respectively arranged in the light emitting regions (32A1 to 32A5).

Inventors:

Akihito Horikawa

Application Number:

JP2019075512A

Publication Date:

January 04, 2023

Filing Date:

April 11, 2019

Export Citation:

Click for automatic bibliography generation Help