Light-Guide Illumination Device for 360-Degree Omnidirectional Bulb Replacement
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Solution Overview
Problem
Conventional energy-saving light bulbs, such as LED bulbs, often have restricted illuminating angles and produce glare, making direct replacements for conventional bulbs impractical and requiring costly changes to lighting fixtures, while also posing environmental concerns due to mercury content.
Innovation Solution
A light-guide type illumination device that uses a heat-dissipating unit, conductive unit, light-emitting unit, and light-guiding unit to convert directional LED light sources into omni-directional light sources, providing a 360-degree light-emitting range and matching the illumination pattern of conventional bulbs, allowing for direct replacement without fixture changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional LED light bulbs are used, then energy efficiency is improved, but illuminating angle is restricted and glare is produced
Solution Approach 1:
A light guide plate is introduced as an intermediary component between the LED light source and the illumination space. The light guide plate receives directional light from the LED and redistributes it through its lateral surfaces to achieve omnidirectional illumination, thereby resolving the contradiction between energy efficiency and illuminating angle.
Solution Approach 2:
The patent transitions from point-source directional illumination to surface-based omnidirectional illumination by utilizing the light guide plate's lateral surfaces. This dimensional transformation allows light to be emitted in all directions around the bulb, expanding the illuminating angle while maintaining LED energy efficiency.
2Use of energy by moving object
If conventional LED light bulbs are used, then energy efficiency is improved, but glare is produced causing user discomfort
Solution Approach 1:
The light guide plate serves as a mediator that diffuses and redistributes the concentrated LED light output. By scattering light through its lateral surfaces rather than emitting it directly from a point source, the system eliminates glare while preserving the energy efficiency benefits of LED technology.
3Use of energy by moving object
If conventional LED light bulbs with restricted illuminating angle are used, then energy efficiency is improved, but direct replacement of conventional bulbs becomes impractical
Solution Approach 1:
The light guide bulb integrates multiple functions into a single replaceable unit: it contains the LED light source, the light guide plate for omnidirectional distribution, and the bulb structure for fixture compatibility. This universal design allows the bulb to replace both conventional direct-type and lateral-type bulbs without requiring changes to the lighting fixture.
4Use of energy by moving object
If conventional LED light bulbs are used, then energy efficiency is improved, but mounting requirements differ from conventional bulbs requiring fixture changes
Solution Approach 1:
The light guide bulb is designed to replicate the external form factor and mounting interface of conventional bulbs. By copying the familiar bulb geometry and base configuration, the invention maintains compatibility with existing lighting fixtures, thereby reducing mounting complexity while incorporating energy-efficient LED technology.
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 direct replacement of conventional bulbs with a 360-degree light-emitting device, reducing glare and mercury-related environmental issues, while maintaining energy efficiency and cost-effectiveness.
Implementation Method 1
the at least one light-guiding element has a light input surface formed on a bottom side thereof for receiving the light beams and an optical surface-treated layer formed on at least one lateral surface thereof
Data Source
AI summary
A light-guide type illumination device includes a heat-dissipating unit, a conductive unit, a light-emitting unit and a light-guiding unit. The heat-dissipating unit includes a heat-dissipating body. The conductive unit and the light-emitting unit are respectively disposed on a first side and a second side of the heat-dissipating body. The light-emitting unit includes at least one light-emitting element electrically connected to the conductive unit for generating light beams. The light-guiding unit includes at least one light-guiding element disposed above the light-emitting unit. The light-guiding element has a light input surface formed on a bottom side thereof for receiving the light beams and an optical surface-treated layer formed on at least one lateral surface thereof. Hence, the instant disclosure can provide an annular 360-degree light-emitting range by matching the light-emitting unit and the light-guiding unit, thus any type of conventional energy-saving bulb can be replaced by the illumination device.