LED Optical Assembly Layout for Low-Loss Glare Control
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Solution Overview
Problem
Existing LED lighting technologies suffer from high light loss, increased cost due to the use of light guide plates and grilles, and glare issues, which affect efficiency and cost control.
Innovation Solution
An LED lighting device design featuring a seat with a baseplate and sidewall, an optical assembly including LED arrays and optical members, and a power source positioned in a redundant space, with optical components fixed directly to the base for improved reliability and simplified installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light guide plate and diffuser plate are used in planar lamps, then light can be distributed evenly, but light loss increases and cost increases
Solution Approach 1:
The patent removes the light guide plate and diffuser plate from the traditional planar lamp structure. Instead of using these separate optical components, the invention directly positions LED modules on the base frame with grilles, eliminating the light loss and cost associated with the light guide plate while maintaining light distribution through the grille structure itself.
Solution Approach 2:
The grille structure serves multiple functions simultaneously: it acts as both the light-distributing element and the protective cover, eliminating the need for separate light guide plates and diffuser plates. This multi-functional design reduces component count and associated light loss.
2Loss of energy
If a light guide plate is used, then light can be guided efficiently, but cost increases
Solution Approach 1:
The patent eliminates the light guide plate entirely, replacing it with a grille structure that directly covers the LED modules. This removal of the expensive light guide plate component directly reduces manufacturing cost while the grille maintains light guiding functionality through its own structural design.
Solution Approach 2:
The invention uses simpler, less expensive grille structures instead of costly light guide plates. The grille is a more economical component that achieves the same light guiding function without requiring the expensive optical materials and precision manufacturing of light guide plates.
3Object-affected harmful factors
If a grille is used in grille lamps, then light can be blocked from direct view, but light loss increases and dark areas occur
Solution Approach 1:
The patent employs grilles with specific local characteristics - the grille structure is designed with openings and patterns that selectively control light distribution. Different regions of the grille are optimized to block glare in certain directions while maintaining light output in others, achieving glare control without excessive light loss.
Solution Approach 2:
The grille structure incorporates curved or angled surfaces that redirect light away from direct line-of-sight viewing angles. The curved geometry of the grille openings and mounting structure helps scatter light to reduce glare while maintaining overall light output, preventing dark areas from forming.
4Illumination intensity
If a light guide plate and diffuser plate are used, then light can be distributed, but device complexity increases
Solution Approach 1:
The patent merges the functions of the light guide plate, diffuser plate, and grille into a single integrated structure. The grille is directly mounted on the base frame with LED modules, combining multiple separate components into one unified assembly that simplifies the overall device structure while maintaining light distribution capabilities.
Solution Approach 2:
By removing the light guide plate and diffuser plate from the traditional multi-component planar lamp design, the invention reduces the number of parts. The grille structure alone performs the light distribution function that previously required multiple separate components, thereby reducing device 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 design enhances light efficiency, reduces costs, and simplifies installation processes while maintaining product reliability and aesthetic appeal.
Implementation Method 1
the optical member covers the LED arrays and is located in a light-emitting direction of the LED arrays
Data Source
AI summary
A LED lighting device comprises a seat including a baseplate and a sidewall surrounding the baseplate and forming a receiving space with the baseplate; an optical assembly disposed in the receiving space, wherein the optical assembly includes a light source component and an optical member; the optical member including a plurality of optical units, each of the optical units including a first optical member and a second optical member surrounding a periphery of the first optical member; the optical member covers the light source component; and an install border including a plurality of support elements, and the install border and an outer side of the sidewall forming a redundant space, wherein the optical member is clamped by the seat and the install border, and a power source is disposed in the redundant space.