Elevator Ceiling Light Reflectors for Blinding Prevention
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Solution Overview
Problem
Existing elevator cage lighting systems face issues with intense light blinding passengers, poor ventilation, dust accumulation, and reduced ceiling height due to shield panels, and require labor-intensive installation of non-standardized lighting components.
Innovation Solution
A prefabricated light reflecting system with standardized corner reflectors and modular design, featuring arched reflective surfaces and snap-fitting mechanisms, which eliminates the need for shield panels, ensures high reflectivity, and allows for easy installation and adjustment to fit various elevator sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If shield panels are mounted on the ceiling to prevent direct light from blinding passengers, then passenger comfort is improved, but the ceiling height is reduced and dust accumulation occurs
Solution Approach 1:
The ceiling is segmented into multiple zones with light bulbs mounted at different positions and angles. Instead of using a continuous shield panel, individual light sources are strategically positioned to direct light toward walls and floors, eliminating the need for overhead shielding while maintaining full ceiling height
Solution Approach 2:
The shield panel component is completely removed from the system. The function of preventing direct light exposure is achieved through alternative means (indirect lighting arrangement) rather than physical barriers, thus eliminating the height reduction and dust accumulation problems associated with shields
2Object-affected harmful factors
If shield panels are used to reflect light indirectly, then direct light blinding is prevented, but ventilation is blocked and dust accumulates on the panels
Solution Approach 1:
The lighting system is segmented into multiple independent light sources positioned throughout the elevator interior. Each light bulb is oriented to illuminate specific surfaces (walls, floors) rather than using a single shielded overhead source, allowing air to flow freely around all lighting components without obstruction
Solution Approach 2:
The shield panel is extracted from the system entirely. Indirect lighting is achieved by orienting light sources toward reflective surfaces rather than using physical shields, thereby eliminating the ventilation blockage and dust accumulation issues while maintaining protection from direct light exposure
3Length of stationary object
If light bulbs are mounted directly on the ceiling without shields, then ceiling height is maintained, but direct light blinds passengers and incandescent lamps increase interior temperature
Solution Approach 1:
Different lighting characteristics are applied to different locations within the elevator. Light bulbs are positioned and oriented to illuminate specific zones (walls, floors) with appropriate intensity, creating locally optimized lighting conditions that maintain ceiling height while preventing direct light exposure to passengers
4Adaptability or versatility
If non-standardized light bulbs are manually mounted separately to correspond to elevator cage sizes, then lighting can be customized to fit, but installation becomes extremely labor intensive
Solution Approach 1:
A universal mounting system is designed with standardized components that can be configured for different elevator sizes. The system uses uniform light bulb holders and mounting brackets that adapt to various ceiling dimensions through modular arrangement rather than custom fabrication, enabling rapid installation across different elevator models
Solution Approach 2:
Lighting kits are pre-assembled with all necessary components (bulbs, holders, mounting hardware) configured for specific elevator sizes before delivery to the installation site. This preliminary preparation eliminates on-site customization work and enables quick installation by simply mounting the pre-configured kits
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 system provides effective light distribution without blinding passengers, maintains high reflectivity, simplifies cleaning, and enhances space utility by preventing dust accumulation and allowing for flexible sizing, while reducing manufacturing and installation costs through standardized components.
Implementation Method 1
light emitted from the light bulbs 1 is reflected from the ceiling and wall surface of an elevator cage in directions designated by arrows B and C
Data Source
AI summary
Disclosed herein is a prefabricated light reflecting system having standardized reflectors to be mounted to corners of the ceiling of an elevator cage. Here, a required number of reflectors are successively connectable to correspond to the size of the elevator cage. The light reflecting system includes a corner reflector, a bulb mounting plate, and an end reflector. If necessary, one or more intermediate reflectors may be added.