LED Lamp Cover with Protrusion for Omni-Directional Light
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Solution Overview
Problem
Conventional LED lamps are not suitable for achieving an omni-directional light pattern, which is required in some applications, and there is a need for a lighting solution that can efficiently distribute light in all directions.
Innovation Solution
The illumination apparatus features a cover with a protrusion and a thickness difference between its first and second portions, along with a reflective coating and diffuser particles, to achieve an omni-directional light pattern by reflecting and scattering light emitted from the light source, ensuring more than 80% of the light is directed within a 135° to −135° range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional LED lamps are used, then the structure is simple and easy to manufacture, but they cannot achieve an omni-directional light pattern
Solution Approach 1:
The cover is divided into two distinct portions: a first portion with a protrusion that reflects light, and a second portion without a protrusion that allows light transmission. This segmentation enables different optical functions in different regions, achieving omni-directional light distribution while maintaining a relatively simple overall structure that can be manufactured as an integrated component.
Solution Approach 2:
The cover exhibits local quality differences through the protrusion feature that is present in the first portion but absent in the second portion. This local structural variation creates different optical properties (reflection vs. transmission) in different areas, enabling the cover to direct light in multiple directions while maintaining manufacturing simplicity through a unified component design.
2Shape
If a cover with protrusion and thickness difference is used to achieve omni-directional light pattern, then light distribution is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent merges multiple optical functions (light reflection, light transmission, and light direction control) into a single integrated cover component. The cover simultaneously performs these functions through its designed protrusion structure and thickness variations, eliminating the need for separate reflective surfaces or diffusers, thereby achieving omni-directional light distribution without proportionally increasing manufacturing complexity.
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 solution effectively achieves an omni-directional light distribution, ensuring that over 90% of the light is reflected and less than 10% is transmitted through the thicker portion, providing a uniform illumination pattern across a wide angle.
Implementation Method 1
The illumination apparatus features a cover with a protrusion and a thickness difference between its first and second portions, along with a reflective coating and diffuser particles, to achieve an omni-directional light pattern by reflecting and scattering light emitted from the light source
Implementation Method 2
The illumination apparatus features a cover with a protrusion and a thickness difference between its first and second portions, along with a reflective coating and diffuser particles, to achieve an omni-directional light pattern by reflecting and scattering light emitted from the light source
Data Source
AI summary
This disclosure discloses an illumination apparatus. The illumination apparatus comprises an inner cover comprising a top surface having a first length; a pedestal on which the inner cover is disposed comprising a top surface having a second length; and a holder supporting the pedestal; wherein the first length is greater than the second length.