Stanley Electric Co., Ltd

Toshiyuki Okuno

Hidetaka Okada

Yuki Tokieda

Hirokuni Osugi

To achieve visibility improvement and reduction of sense of incongruity in a vehicular lamp using LEDs. A lighting control device for controlling the on/off of a light source having a first and a second lamp unit each with LEDs including: a control part that generates a control signal for controlling the emitted lights of the lamp units; and a light source drive part for driving the lamp units based on the control signal; where the light emitted from the two lamp units driven by the light source driving part is such that each luminous intensity decreases from a first value to a second value which is smaller than the first value within a common period, and each luminous intensity decreases to the second value during the common period maintaining the relationship that the luminous intensity of the first lamp unit is lower than that of the second lamp unit.

Lighting control device for vehicular lamp, vehicular lamp system

A vehicle lighting unit can include LEDs and at least two long light guide bodies arranged adjacent to each other. At least two light transmitting lenses can be disposed in front of the at least two light guide bodies. The at least two light guide bodies each can include a gap portion interposed therebetween. A first end portion of the light transmitting lens can be positioned at the gap portion so that the first end portions of the light transmitting lenses overlap with each other in a front-rear direction. The first end portions of the at least two light transmitting lenses can have a surface processed portion on its front surface. The surface processed portions can be configured to direct light exiting through the respective first end portions of the at least two light guide bodies forward.

Growing community of inventors

Tokyo, Japan

Toshiyuki Okuno