Telescoping Light Tube and Lens Array for Variable Luminaire Beams
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Solution Overview
Problem
Existing automated luminaires lack efficient mechanisms for controlling beam angle and light distribution, particularly in luminaires with multiple light sources, leading to incomplete illumination and light obstruction issues.
Innovation Solution
A luminaire optical system featuring a telescoping light tube assembly and a lens array that moves relative to LED optical modules, allowing for adjustable beam angles and complete illumination without obstruction, combined with a display panel for visual content control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed optical system is used in luminaire, then the structure is simple, but the beam angle control is limited and light distribution is incomplete
Solution Approach 1:
The patent implements a telescoping light tube assembly that can dynamically adjust its length to change the distance between the light source and lens array, enabling variable beam angles. The system transitions from a fixed optical path to a dynamic one where the light tube can extend and retract to achieve different lighting effects and beam spreads.
Solution Approach 2:
The optical system is divided into separable components: the light tube assembly, the lens array, and the LED modules. This segmentation allows independent adjustment of each component's position and function, enabling flexible beam angle control while maintaining a relatively simple overall structure through modular design.
2Illumination intensity
If multiple LED optical modules are used, then the illumination coverage is increased, but light obstruction and uneven distribution occur
Solution Approach 1:
The light tube assembly serves as an intermediary optical element between the multiple LED modules and the lens array. It collects and redirects light from multiple sources in a coordinated manner, preventing direct obstruction between LEDs while ensuring uniform light distribution across the lens array through its telescoping and positioning mechanisms.
3Manufacturing precision
If the lens array is fixed in position, then the manufacturing is simpler, but the beam angle adjustment is less precise
Solution Approach 1:
The lens array is coupled to the telescoping light tube assembly, allowing it to move dynamically with the light tube's extension and retraction. This dynamic positioning enables precise beam angle adjustment while using standard manufacturing tolerances, as the system achieves precision through adjustable positioning rather than requiring extremely tight fixed tolerances.
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 precise control of beam angles and uniform light distribution across multiple light sources, enhancing the visual output and display capabilities of automated luminaires.
Implementation Method 1
an array of lenses, each configured to receive light emitted from an associated LED optical module
Data Source
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AI summary
A luminaire optical system comprising: a plurality of LED optical modules (302); an auxiliary LED array (406); an array of lenses (104), each configured to receive light emitted from an associated LED optical module of the plurality of LED optical modules; and a telescoping light tube assembly (106) configured to receive light emitted from the auxiliary LED array and comprising a light exit end positioned in an aperture (1008) at a center of the array of lenses, wherein the array of lenses and the light exit end of the telescoping light tube assembly are physically coupled and configured to move together closer to and farther from the plurality of LED optical modules and the auxiliary LED array.