Vehicle Lamp Camera Hood for Whiteout-Free Aiming Adjustment
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Solution Overview
Problem
Existing vehicle lamp designs face issues with light emitted from the lamp unit being incident on the imaging device, leading to whiteout and limited aiming adjustment flexibility, and the effectiveness of preventing external light from passing through the translucent cover is unclear.
Innovation Solution
A vehicle lamp design featuring a tiltable imaging device with a light control unit, such as a light-shielding lens hood or a light emitting portion on the translucent cover, to prevent direct light from the lamp unit and external light from being incident on the imaging device, while allowing for increased aiming adjustment flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a hood portion is added to surround the camera to prevent light incident from the lamp unit, then whiteout is reduced, but the structure becomes more complex and the camera's aiming adjustment freedom is limited
Solution Approach 1:
The harmful light is extracted and blocked by a light-shielding member positioned between the lamp unit and the imaging device. The light-shielding member is a separate component that can be independently designed and adjusted, rather than integrating the shielding function into the camera housing itself.
Solution Approach 2:
The imaging device is made tiltable relative to the lamp housing, allowing dynamic adjustment of the camera's aiming direction. This tilting mechanism enables the camera to be adjusted independently without being constrained by a fixed hood structure, thereby maintaining aiming adjustment freedom while still preventing light incident.
2Device complexity
If a light-shielding member is positioned close to the lamp unit to prevent light incident, then the structure is simplified, but the imaging device's aiming adjustment freedom is reduced
Solution Approach 1:
The imaging device is configured to be tiltable relative to the lamp housing, enabling dynamic aiming adjustment. This tilting capability allows the camera to be repositioned to different angles while the light-shielding member remains in its simplified position close to the lamp unit, thus maintaining both structural simplicity and aiming flexibility.
3Ease of manufacture
If the camera is fixed in the lamp housing to simplify the structure, then manufacturing is easier, but the aiming adjustment capability is lost
Solution Approach 1:
The imaging device is designed with a tilting mechanism that allows it to be adjusted relative to the lamp housing while maintaining a relatively simple overall structure. The tilting function is achieved through a straightforward mechanical linkage or mounting mechanism that does not significantly complicate the manufacturing process, yet provides the necessary aiming adjustment capability.
4Object-affected harmful factors
If a reflected light reducing portion is formed on the extension surface to reduce light reflectance, then light incident on the camera is reduced, but additional manufacturing steps are required
Solution Approach 1:
Instead of trying to reduce light reflectance through special coatings or treatments on the extension surface, the design uses the reflected light itself as a beneficial element. The extension surface is positioned and shaped to reflect light away from the camera's optical path, converting what would be harmful reflected light into a useful directional control mechanism that does not require additional manufacturing steps.
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 prevents whiteout and enhances the design appearance by ensuring that light is not incident on the imaging device, allowing for improved light distribution control and increased aiming adjustment freedom.
Implementation Method 1
a light control unit provided on at least one of the translucent cover and the imaging device, and configured to prevent light emitted from the lamp unit from being incident on the imaging device
Implementation Method 2
light emitted from a headlamp of an oncoming vehicle passes through a translucent cover and is incident on a lamp housing
Data Source
AI summary
A lamp unit and a camera are disposed in a lamp housing including a translucent cover, and an aiming adjustment of the camera is enabled. The camera is provided with a lens hood for preventing light emitted from the lamp unit from being incident on the camera. The lens hood has a required gap with respect to the translucent cover and allows the camera to tilt.