External Rotating Beam Shaper for LED Arrays
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Solution Overview
Problem
Prior art beam shapers for automated luminaires are not suitable for optical systems using arrays of discrete emitters like LEDs, as they require internal installation and cannot smoothly adjust the angle of eccentricity of the constrained light beam.
Innovation Solution
A transmissive beam shaper mounted externally to the luminaire, comprising a disk of optically transparent material with embossed or molded ribbed or lenticular lenses, allowing continuous rotation and easy replacement, enabling adjustment of the light beam's eccentricity and shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a prior art beam shaper is installed internally within the luminaire, then the beam shaping function is integrated, but the system becomes complex and difficult to install or remove
Solution Approach 1:
The beam shaper is separated from the luminaire body into an independent external component that can be easily attached and removed. This segmentation allows the beam shaping function to be added or removed without modifying the luminaire's internal structure, significantly reducing installation complexity while maintaining adaptability.
Solution Approach 2:
The beam shaping function is extracted from the luminaire's internal optical system and implemented as an external attachment. This extraction enables easy installation and removal without interfering with the luminaire's existing light beam path, solving the contradiction between integration and installation ease.
2Shape
If a prior art beam shaper is used, then beam constriction is achieved, but the angle of eccentricity cannot be smoothly adjusted
Solution Approach 1:
The beam shaper incorporates a rotatable element that can be dynamically adjusted to change the angle of eccentricity of the constrained light beam. This dynamic adjustment mechanism allows smooth variation of beam shape parameters, transforming a static beam shaper into an adaptable optical component that responds to operational requirements.
Solution Approach 2:
The beam shaper is pre-configured with multiple lens elements arranged to provide different beam constriction effects. By pre-positioning these optical elements, the system enables smooth adjustment of the angle of eccentricity without requiring complex real-time modifications, facilitating ease of operation while maintaining precise beam shape control.
3Use of energy by moving object
If discrete LED emitters are used, then energy efficiency is improved, but traditional beam shapers cannot be applied
Solution Approach 1:
An intermediary optical element is introduced between the discrete LED emitters and the beam shaper to adapt the light output. This intermediary component bridges the gap between the specific characteristics of LED arrays and the requirements of traditional beam shapers, enabling compatibility while preserving the energy efficiency benefits of LED technology.
Solution Approach 2:
The beam shaper is designed with universal adaptability to work with discrete LED emitter arrays. By incorporating multiple lens elements and a rotatable mechanism, the device can accommodate different LED configurations and provide versatile beam shaping capabilities, making it compatible with energy-efficient LED systems while maintaining broad applicability.
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 provides a flexible and easy-to-install beam shaping mechanism that can smoothly adjust the angle of eccentricity of the light beam produced by an array of LEDs, offering a wide range of beam shapes and angles without increasing the luminaire's size or interfering with the light beam.
Implementation Method 1
A beam shaping element may comprise an asymmetric or lenticular lens or collection of lenses that constrain a light beam
Data Source
AI summary
Described is an improved automated multisource LED array luminaire with an array-wide, rotating beam shaper.