Adjustable Rail-Mounted Cabin Lighting for Targeted Light Distribution
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Solution Overview
Problem
In mobility vehicles, fixed interior lighting devices cannot adjust light distribution to accommodate varying seat positions and occupant preferences, leading to inconvenient light blocking or misdirection.
Innovation Solution
A detachable lighting device with a mounting rail and a lighting unit that can be adjusted along the rail, featuring a movable outer body that locks or unlocks the inner body, allowing for flexible positioning and tilting of the lamp to optimize light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If interior lighting devices are fixed in specific positions, then the device structure is simple and stable, but the light distribution cannot be adjusted to accommodate varying seat positions and occupant preferences
Solution Approach 1:
The lighting device transitions from a fixed structure to a movable one by allowing the lighting unit to slide along the mounting rail. The outer body moves relative to the inner body, enabling dynamic adjustment of light distribution angles and positions to accommodate varying seat positions and occupant preferences while maintaining a relatively simple overall structure.
Solution Approach 2:
The lighting device is divided into separate components: a mounting rail fixed to the vehicle interior, an inner body containing the light source, and an outer body that can move independently. This segmentation allows the lighting unit to be positioned at different locations along the rail while keeping the installation structure simple and stable.
2Area of stationary object
If the angles of light distribution are excessively increased to illuminate all possible seat locations, then light coverage is improved, but light may be undesirably directed toward another occupant
Solution Approach 1:
Instead of using a single wide-angle light source that illuminates all areas indiscriminately, the invention allows the lighting unit to be positioned at multiple discrete locations along the mounting rail. Each position provides focused illumination tailored to specific seating arrangements, ensuring light is directed precisely where needed without unnecessarily illuminating areas where occupants may be present.
3Ease of manufacture
If interior lighting devices are fixed above front and rear seats, then the installation is simple, but light may be blocked by occupant bodies or illuminate unnecessary locations when seat positions change
Solution Approach 1:
The mounting rail serves multiple functions: it provides structural support for the lighting device, enables repositioning of the lighting unit to various locations, and maintains electrical connections during movement. This universal design allows the same installation structure to accommodate both fixed and movable lighting configurations, simplifying manufacturing while enhancing operational flexibility.
Data Source
AI summary
Proposed is a detachable lighting device including lighting units. The positions of the lighting units are changeable along a mounting rail within an interior space. The number of the lighting units and the mounting positions of the lighting units are adjustable. Accordingly, occupants within the interior space adjust light distribution as desired by each occupant.