Vehicle Interior Lamp with Movable Light Unit
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Solution Overview
Problem
Conventional vehicle interior lamps require separate installations for indirect illumination mood lamps and direct illumination reading lamps, leading to increased costs and space requirements, as well as limited functionality for concentrated light applications.
Innovation Solution
A multifunctional lamp with a housing containing a light source and an indirect illumination diffusing lens, where a concentrated illumination light emitting unit moves back and forth to selectively provide either indirect or direct illumination by shielding or exposing the diffusing lens, allowing for simple operation between mood and reading lamp modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate mood lamp and reading lamp are installed in vehicle interior, then illumination functionality is improved, but device complexity and installation space increase
Solution Approach 1:
The patent combines a mood lamp and a reading lamp into a single integrated lamp unit. The housing contains both an indirect illumination diffusing lens for mood lighting and a direct illumination light emitting unit for reading, merging two separate functions into one device that can be installed in a single location.
Solution Approach 2:
The integrated lamp unit is designed to perform multiple functions: it can operate as an indirect illumination mood lamp using the diffusing lens, and as a direct illumination reading lamp using the light emitting unit. This multi-functional design allows a single lamp to replace what would traditionally require two separate lamps.
2Illumination intensity
If concentrated illumination reading lamp is used, then reading illumination is improved, but adaptability for other applications deteriorates
Solution Approach 1:
The light emitting unit is designed to be movable relative to the housing, allowing it to shift position. This dynamic capability enables the reading lamp to provide concentrated illumination when needed, while also allowing the unit to be repositioned for different lighting scenarios, thus maintaining versatility alongside strong reading illumination capability.
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
Enables the reduction of installation space and costs by allowing a single lamp to function as both a mood lamp and a reading lamp, enhancing marketability and usability without the need for separate fixtures.
Implementation Method 1
An indirect illumination diffusing lens is disposed in front of the housing to diffuse and emit light of the light source
Implementation Method 2
The concentrated illumination light emitting unit emits the light of the light source toward a front side of the housing through an internal passage of the concentrated illumination light emitting unit
Data Source
AI summary
A multifunctional lamp for a vehicle interior includes a housing having a light source installed therein. An indirect illumination diffusing lens is disposed in front of the housing to diffuse and emit light of the light source. A concentrated illumination light emitting unit moves back and forth while passing through the light diffusing lens. The concentrated illumination light emitting unit emits the light of the light source toward a front side of the housing through an internal passage of the light emitting unit in the form of concentrated illumination and shields the light diffusing lens from the light when concentrated illumination light emitting unit moves to surround a periphery of the light source.