Hologram Illumination Layout for Variable Color and Beam Patterns
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Solution Overview
Problem
Existing illumination apparatuses using laser beams struggle to efficiently change the illumination form of a zone with a simple configuration, lacking technical ideas for varying colors and patterns even with multiple wavelength ranges.
Innovation Solution
The use of multiple element hologram devices arranged in a first and second direction, each diffracting coherent light beams in different wavelength ranges, allowing for optimization of the illumination form by adjusting diffraction characteristics to achieve desired patterns and colors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single light source and single hologram device are used, then the apparatus configuration is simple, but the ability to change illumination form and create various colors is limited
Solution Approach 1:
The patent divides the hologram device into multiple element hologram devices (first, second, third) that are arranged in a specific pattern. Each element hologram device processes a different wavelength range (red, green, blue), allowing the system to create various illumination forms and colors by selectively activating different elements, thus achieving versatility without requiring a completely separate apparatus for each function.
Solution Approach 2:
The patent creates a universal illumination apparatus that can perform multiple functions using a single integrated configuration. By arranging element hologram devices for different wavelength ranges in a specific pattern, the system can generate various illumination forms (spot, line, area) and colors (RGB combinations) without needing separate apparatuses for each function, achieving multi-functionality with a unified structure.
2Adaptability or versatility
If multiple wavelength ranges are combined to form various colors, then color versatility is improved, but the illumination form control becomes complex
Solution Approach 1:
The patent assigns specific wavelength ranges to specific element hologram devices (red to first, green to second, blue to third). This local specialization allows each element to handle a specific color channel independently, simplifying the control logic for creating various colors and illumination forms, as each element can be activated or deactivated based on the desired output without complex interactions between different wavelength handlers.
3Area of stationary object
If element hologram devices are arranged in multiple directions, then the illumination coverage is improved, but the device structure becomes more complex
Solution Approach 1:
The patent arranges the element hologram devices in an asymmetric yet systematic pattern where the first, second, and third element hologram devices are positioned at specific locations and orientations. This asymmetric arrangement optimizes the illumination coverage by directing different wavelength ranges to complementary zones, achieving comprehensive area coverage without requiring a symmetric but overly complex multi-directional setup.
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 configuration enables the creation of various illumination forms and colors with a simple setup, improving the visual perception and efficiency of the illumination zone, reducing blurring and speckles, and allowing for adaptive illumination based on environmental information.
Implementation Method 1
element hologram devices for diffracting coherent light beams in wavelength ranges different from one another
Data Source
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AI summary
An illumination apparatus that illuminates an illumination zone having a first direction and a second direction crossing the first direction is provided with a light source to emit a coherent light beam, and a diffraction optical device to diffract the coherent light beam incident from the light source. The diffraction optical device diffracts the incident coherent light beam so that a width of the illumination zone in the second direction gradually becomes wider along the first direction of the illumination zone from a nearer side to the diffraction optical device.