Vehicle Lighting Device Brightness Controller
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Solution Overview
Problem
Existing vehicle lighting devices with five light-emitting elements, including one at the central axis and four rotationally symmetric on a circumference, face challenges in achieving sufficient light emission and desired brightness distribution.
Innovation Solution
A vehicle lighting device with a socket, five light-emitting elements, and a brightness controller that includes light-shielding and light-transmitting parts. The brightness controller faces the central light-emitting element and does not face the circumferentially positioned elements, with light-shielding parts strategically placed to control brightness distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If five light-emitting elements are provided (one at central axis and four on circumference), then the amount of light emitted is increased, but the desired brightness distribution cannot be obtained
Solution Approach 1:
The brightness controller is provided with different structures at different locations: a light-shielding part at the central axis position and light-transmitting parts at the circumferential positions. This local differentiation allows the central light-emitting element to have its brightness controlled while the circumferential elements maintain their light output, achieving the desired brightness distribution across the entire lighting device
Solution Approach 2:
The brightness controller is segmented into functionally distinct regions: a light-shielding part corresponding to the central axis position and light-transmitting parts corresponding to the circumferential positions. This segmentation enables independent control of brightness for different light-emitting elements, resolving the contradiction between increasing light output and maintaining proper brightness distribution
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively increases the amount of light emitted and achieves a desired brightness distribution, ensuring optimal optical performance in vehicle lamps.
Implementation Method 1
a brightness controller, provided on a light-emitting side of the light-emitting elements and having a plurality of light-shielding parts and a light-transmitting part
Data Source
AI summary
The disclosure provides a vehicle lighting device and a vehicle lamp. The vehicle lighting device includes: a socket; five light-emitting elements, provided on one end side of the socket; and a brightness controller, provided on a light-emitting side of the light-emitting elements and having a plurality of light-shielding parts and a light-transmitting part. One of the light-emitting elements is provided at a position on a central axis of a vehicle lighting device. Four of the light-emitting elements are provided at positions that are rotationally symmetric on a circumference centered on the central axis, respectively. The brightness controller faces the one light-emitting element provided at a position on the central axis. The brightness controller does not face the four light-emitting elements provided at a position on the circumference. The plurality of light-shielding parts provided in the brightness controller are not provided at positions on the central axis.