Lighting Module with Wide-Beam Optical Component and Reflector
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Solution Overview
Problem
Existing lighting modules face challenges in achieving a wide radiation characteristic with high efficiency, often resulting in poor thermal management due to the close arrangement of LED modules and limited beam angles, which can lead to reduced efficiency and service life of optical components.
Innovation Solution
A lighting module design featuring a light source, an optical component with a wide beam emission characteristic, and a reflector, where the optical component directs at least 30% of the incident light onto the reflector, and multiple sets of light sources with differently oriented optical components share a common reflector, allowing for a wide beam radiation pattern while maintaining a compact structure and reducing thermal stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a narrow emission characteristic or sharp light/dark transitions are required, then high technical effort and efficiency losses occur, but good image sharpness is achieved
Solution Approach 1:
The lighting module segments the optical system into distinct functional components: a light source, a wide-beam optical component, and a separate reflector. This segmentation allows each component to be optimized independently - the optical component handles wide beam distribution while the reflector creates sharp light/dark transitions, avoiding the efficiency losses associated with forcing a single component to perform multiple functions
Solution Approach 2:
The reflector acts as an intermediary element between the wide-beam optical component and the final light output. It receives the wide beam radiation and redirects it to create sharp transitions, mediating between the wide emission characteristic and the sharp image requirements without causing excessive efficiency loss
2Volume of moving object
If LED modules are arranged closely or chip packing is increased, then compact structure is achieved, but thermal management deteriorates
Solution Approach 1:
The invention extracts the thermal management function from the optical component by positioning it at a distance from the light source. This separation removes the optical component from the high-temperature zone near the LED, allowing compact overall design while protecting the optical element from thermal damage
Solution Approach 2:
The reflector serves as a thermal intermediary, positioned between the light source and the optical component. It allows the optical component to be located closer to the light source than would otherwise be safe, while the reflector blocks direct thermal exposure, mediating the thermal environment
3Length of stationary object
If optical component is placed close to light source, then compact design is achieved, but optical component damage from luminous flux density occurs
Solution Approach 1:
The invention extracts the optical component from the high-luminous-flux-density zone by positioning it at a controlled distance from the light source. This separation protects the optical component from damage while maintaining compact overall module design
Solution Approach 2:
The reflector provides beforehand cushioning by blocking and redirecting excessive luminous flux before it can reach and damage the optical component. This protective arrangement is built into the module design from the outset, preventing optical component degradation
4Shape
If conventional lenses are used for narrow beam angles, then narrow beam radiation is achieved, but efficiency is low
Solution Approach 1:
Instead of using a conventional lens to narrow the beam directly (which is inefficient), the invention inverts the approach: it uses a wide-beam optical component to create wide beam radiation, then uses a reflector to shape and redirect the light into a narrow beam pattern. This inverted sequence achieves narrow beam angles with high efficiency
Solution Approach 2:
The invention changes the dimensional approach to beam control by separating the wide-beam generation function from the narrow-beam shaping function. The optical component operates in one dimensional regime (wide beam), while the reflector operates in another (redirecting to narrow beam), achieving efficient narrow beam radiation through this dimensional transition
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
This design achieves a wide beam radiation characteristic with high efficiency, enabling sharp light/dark transitions and improved thermal management, suitable for applications like signaling, street lighting, and automotive lighting, while extending the service life of optical components.
Implementation Method 1
The optical component is designed and arranged to have a wide beam emission characteristic and to direct a major portion of the light incident on the optical component from the light source onto the reflector
Implementation Method 2
the optical component is designed and arranged to have a wide beam emission characteristic and to direct a major portion of the light incident on the optical component from the light source onto the reflector
Data Source
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AI summary
The invention relates to a lighting module (1) comprising at least one light source (7), at least one optical component (2) arranged at a distance to the at least one light source and at least one reflector (3). The optical component is designed and arranged to have wide-range emission characteristics and to direct a major part of the light that is incident from the light source onto the optical component to the reflector.