Lamp Body Light Guide Lens Half Mirror Depth
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Solution Overview
Problem
Existing lamp body configurations for vehicles, such as tail lamps, struggle to effectively express a sense of depth while maintaining a reduced size.
Innovation Solution
Incorporating a light guide body with a first and second light guide lens, a reflector, and a half mirror with a reflection and transmission area, where the light guide body is positioned between the reflector and the half mirror, allowing light to be reflected multiple times and creating a grid pattern for enhanced depth perception, and optionally including a pattern forming portion with fine cuts on the second light guide lens for additional depth and floating effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light guide reflection surfaces are disposed side by side at different heights to express three-dimensional depth, then the sense of depth is improved, but the device complexity increases
Solution Approach 1:
The light guide body is divided into multiple light guide lenses (first light guide lens and second light guide lens) with different functions. The first light guide lens guides light in a first direction, while the second light guide lens guides light in a second direction intersecting the first direction. This segmentation allows complex three-dimensional light guidance to be achieved through simpler, dedicated components rather than a single complex structure.
Solution Approach 2:
The patent introduces multiple spatial dimensions for light guidance by disposing light guide lenses at different positions and orientations. The first light guide lens operates in a first direction, while the second light guide lens operates in a second direction intersecting the first direction, creating three-dimensional light paths without increasing overall device complexity.
2Illumination intensity
If multiple light guide lenses are used to create grid patterns and floating effects, then the visual three-dimensionality is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The light guide body is segmented into multiple light guide lenses, each with specific functions. The first light guide lens creates initial light guidance, while the second light guide lens creates the grid pattern and floating effects. This functional segmentation allows each lens to be optimized independently, reducing the overall manufacturing precision requirements compared to a single integrated lens.
Solution Approach 2:
The second light guide lens includes a pattern forming portion with fine cuts that extends in the first direction, creating a grid pattern. This partial pattern formation rather than complete coverage allows for easier manufacturing while still achieving the desired visual three-dimensional effect through selective light modulation.
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 configuration allows for a more pronounced sense of depth and improved design flexibility, maintaining a compact size and enhancing the visual three-dimensionality of light emission.
Implementation Method 1
a light guide body (for example, a light guide body 6 in the first embodiment) configured to cause light (for example, light L in the first embodiment) from the light source to be guided and cause the light to be emitted from a light emitting surface
Implementation Method 2
causing light from a light emitting surface to be three-dimensionally viewed by internally reflecting light from a light source a plurality of times
Implementation Method 3
a reflector (for example, a reflector 7 in the first embodiment) configured to cause the light, which has exited from a light guide exit surface (for example, a light guide exit surface 65b or 66b in the first embodiment) of the light guide body, to be reflected toward a side of the light emitting surface
Implementation Method 4
a half mirror (for example, a half mirror 4 in the first embodiment) disposed to face the reflector and having a reflection area (for example, a reflection area A1 in the first embodiment) where the light reflected by the reflector is reflected toward a side of the reflector and a transmission area (for example, a transmission area A2 in the first embodiment) where the reflected light is transmitted
Data Source
AI summary
A lamp body includes a light source, a light guide body configured to cause light from the light source to be guided and cause the light to be emitted from a light emitting surface, a reflector configured to cause the light, which has exited from a light guide exit surface of the light guide body, to be reflected toward a side of the light emitting surface; and a half mirror disposed to face the reflector and having a reflection area where the light reflected by the reflector is reflected toward a side of the reflector and a transmission area where the reflected light is transmitted. In the light guide body, a first light guide lens causes the light to be guided in a first direction and a second light guide lens has the light guide exit surface from which the light exits in a second direction intersecting the first direction.