Portable Light Rotating Mechanism for Dual Lighting Modes
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Solution Overview
Problem
Dual mode portable lights that provide both omni-directional and unidirectional lighting effects typically require separate light sources, leading to high manufacturing costs.
Innovation Solution
A portable light design featuring a single light source rotatably mounted within a housing, utilizing a light guide and rotating mechanism to direct light between different orientations, allowing the same light source to produce either omni-directional or unidirectional lighting modes by switching between two distinct lighting members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate light sources are used for each lighting mode, then lighting performance for each mode is optimized, but manufacturing costs increase
Solution Approach 1:
The patent applies universality by making a single light source serve multiple functions through different lighting members. The first lighting member (omni-directional reflector) and second lighting member (unidirectional reflector) allow one light source to provide both omni-directional and unidirectional lighting modes, eliminating the need for separate light sources and reducing manufacturing costs.
Solution Approach 2:
The patent applies dynamics by making the lighting members rotatable relative to the light source. The rotating mechanism allows dynamic switching between different lighting modes by changing the orientation of the lighting members, enabling the system to adapt between omni-directional and unidirectional lighting as needed.
2Ease of manufacture
If a single light source is used for both lighting modes, then manufacturing costs are reduced, but lighting performance for each mode may be compromised
Solution Approach 1:
The patent applies local quality by designing specialized lighting members with specific optical properties for different directions. The first reflector is designed with characteristics optimized for omni-directional light distribution, while the second reflector is designed for unidirectional beam formation, ensuring each lighting mode receives locally optimized optical treatment.
Solution Approach 2:
The rotating mechanism allows the system to dynamically position the appropriate lighting member in the optimal position relative to the light source, ensuring that the light source's output is properly directed according to the selected lighting mode, thereby maintaining lighting performance reliability.
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 cost-effective production of dual mode portable lights by using a single light source, providing flexible lighting options while maintaining performance and reducing manufacturing costs.
Implementation Method 1
the light passage member is in parabolic shape with a smaller end, a larger end, an axis of symmetry and a reflective inner surface; the first reflector and the second reflector are both parabolic reflectors
Implementation Method 2
the larger end of the light passage member is circumjacent to the first light inlet position so that the light passage member and the first reflector form an integral parabolic reflector to collimate light from the light source
Data Source
AI summary
A portable light with light directing mechanism for providing different light modes includes a light source, a housing, a first lighting member, a second lighting member, a rotating means and a light guide. The light guide together with the light source is rotatable by the rotating means along a light guide axis between a first position where the light passage member provides a light passage from the light source to the first light inlet of the first lighting member and a second position where the light passage member provides a light passage from the light source to the second light inlet of the second lighting member.