Multi-Source Theatre Light Projector for Seamless Beam Blending
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Solution Overview
Problem
Theatre light projectors with multiple light sources often have a 'fly eye' appearance due to non-seamlessly integrated output lenses, which is undesirable for a unified light source effect.
Innovation Solution
A theatre light projector design incorporating a housing with a lens system comprising parallel sectors, a diffusion system, and a central integrating mask to create a blended light beam with reduced artifacts, using adjustable heat sinks and nano-coated apertures for improved light integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple light sources with discrete output lenses are used in a theatre light projector, then the light output can be increased and color mixing is improved, but the lenses are not seamlessly integrated creating a 'fly eye' appearance that is undesirable
Solution Approach 1:
The patent merges multiple discrete output lenses into a single integrated lens assembly that appears as one unified optical element. The lens system combines light from multiple LED sources through a common optical path, creating a seamless appearance that eliminates the 'fly eye' effect while maintaining the benefits of multiple light sources for increased output and color mixing capability.
2Illumination intensity
If multiple light sources are used to increase light output, then illumination intensity is improved, but light scattering from theatrical fog increases creating undesirable artifacts
Solution Approach 1:
The patent applies local quality control by optimizing the optical characteristics in different regions of the light beam. The integrated lens system is designed to control light distribution patterns, creating a more uniform beam profile that reduces hot spots and minimizes scattering artifacts when light interacts with theatrical fog, while still delivering high overall illumination intensity.
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 achieves a seamless integration of light sources, reducing undesirable artifacts and enhancing the appearance of a unified light source, with improved light blending and reduced scattering from theatrical fog.
Implementation Method 1
a lens system comprised of a plurality of sectors... Each of the first lens sector and the second lens sector may have a positive spherical optical power
Implementation Method 2
a diffusion system, and a central integrating mask to create a blended light beam with reduced artifacts
Implementation Method 3
the first heat sink is comprised of an adjustment mechanism for altering the direction of the first light path
Data Source
AI summary
A theatre light projector including a housing, a plurality of light sources, a first aperture device and a lens system. The lens system may include a first lens sector and a second lens sector, each of which may have a positive spherical optical power. The first lens sector may have a first radii, and the second lens sector may have a second radii, wherein the first radii and the second radii are substantially parallel to each other. The first aperture device may be comprised of a first aperture comprised of a color filter and/or a pattern. The plurality of light sources may be comprised of a first light source and a second light source and each may be comprised of a white solid state light source, which may be a light emitting diode. The white solid state light source may be a laser diode.