Vehicle Lamp Facet Structure for Slim Glare-Controlled Beams
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Solution Overview
Problem
Existing vehicle lamps struggle to form optimal beam patterns while maintaining a slim form factor, leading to issues with glare and reduced aesthetic appeal.
Innovation Solution
The lamp design includes a plurality of light sources and optical members with facets arranged to control light emission, forming a beam pattern with a cut-off line that prevents glare by adjusting the direction of steps between facets, using light guiding lenses and optical lenses to direct light appropriately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the lamp is designed with a slim form factor, then aesthetic appearance is improved, but beam pattern control and glare prevention deteriorate
Solution Approach 1:
The optical member is divided into multiple facets (first facet, second facet, third facet, fourth facet) with different orientations. Each facet segment controls light in specific directions, allowing precise beam pattern control within a compact structure. The segmentation enables the slim lamp to prevent glare while maintaining aesthetic appearance.
Solution Approach 2:
Different facets are assigned different functions: the first facet directs light to the driving lane, the second facet directs light to the opposite lane, the third facet blocks upward light to prevent glare, and the fourth facet controls light distribution. This local differentiation of optical properties enables effective glare prevention in a compact design.
2Illumination intensity
If light is directed to form optimal beam pattern, then visibility is improved, but light may be irradiated to undesired regions causing glare
Solution Approach 1:
The third facet is specifically designed to block light before it can reach undesired regions. By preemptively intercepting light rays that would otherwise cause glare, the design prevents harmful effects before they occur, while still allowing optimal light distribution to desired areas for visibility.
Solution Approach 2:
The facets are arranged asymmetrically with different orientations and positions. The first facet is inclined at a specific angle to direct light to the driving lane, while the second facet has a different orientation for the opposite lane. This asymmetric arrangement enables precise control of light distribution, directing illumination where needed while blocking light from undesired regions.
3Manufacturing precision
If multiple optical members are used to control beam pattern, then light control precision is improved, but device complexity increases
Solution Approach 1:
Multiple optical functions are merged into a single integrated optical member. The optical member incorporates all four facets with different orientations within one component, combining beam shaping, light blocking, and distribution functions. This integration achieves precise beam pattern control while avoiding the complexity of multiple separate optical components.
Solution Approach 2:
The optical member serves multiple functions simultaneously: it shapes the beam pattern, directs light to specific lanes, blocks light from undesired regions, and controls overall light distribution. This multi-functionality within a single component achieves high light control precision without increasing device complexity through multiple separate elements.
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 allows for the formation of a beam pattern that prevents undesired light irradiation, enhances visibility without causing glare, and improves the aesthetic appearance of the vehicle lamps.
Implementation Method 1
at least one optical member disposed in front of the at least one light source to allow light emitted from the at least one light source to be irradiated therethrough
Data Source
AI summary
A vehicle lamp includes at least one light source; and at least one optical member disposed in front of the light source to allow light emitted from the light source to be irradiated therethrough in a forward direction to form a beam pattern. The optical member includes a plurality of facets arranged in a predetermined direction to constitute a light emission surface of the optical member, and the light is emitted from the light emission surface in the forward direction. A center line vertically extends in a perpendicular manner to an optical axis of the optical member. Positions of facets belonging to at least one of both opposing areas with respect to the center line among the plurality of facets shift rearward as they go away from the center line to a side, such that a step formed between adjacent facets is directed rearward.