Desk Lighting and Projection Control for Uniform Illuminance
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Solution Overview
Problem
Existing lighting equipment with both illumination and image projection functions is inadequate for providing uniform illuminance over a wide range, making it unsuitable for student and office desks where varied illuminance is needed.
Innovation Solution
A lighting system with an integrated illumination and image projection section, controlled by a section that adjusts brightness to maintain appropriate illuminance levels, allowing the image projection section to function as auxiliary illumination and being detachable for compactness, with an adjustable arm for flexible placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same light source is used for both illumination and image projection, then the device complexity is reduced, but the illuminance distribution over a wide range becomes uneven
Solution Approach 1:
The patent divides the illumination system into two independent light sources: a first light source for general illumination and a second light source for image projection. This segmentation allows each light source to be optimized for its specific function, with the first light source providing uniform illuminance across the desk surface and the second light source enabling image projection without compromising the overall illumination quality.
2Adaptability or versatility
If the image projection section is used for illumination, then the device versatility is improved, but the image quality and illumination uniformity deteriorate
Solution Approach 1:
The patent implements multi-functionality by providing both a first light source for illumination and a second light source for image projection within the same device. The control unit enables the device to switch between different operational modes (illumination mode, projection mode, and combined mode), allowing the lighting equipment to serve multiple purposes while maintaining optimal performance for each function through independent light source control.
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 uniform and adjustable illuminance suitable for various tasks, eliminating the need for additional sensors and maintaining image quality by dynamically adjusting brightness, while being user-friendly and versatile for different applications.
Implementation Method 1
an illumination section (100) capable of illuminating a surface to be an illumination object
Implementation Method 2
a light modulation element for modulating the light from the light source based on the image information to be projected
Implementation Method 3
a projection lens for projecting the image emitted from the light modulation element in an enlarged manner
Data Source
AI summary
A lighting equipment has a configuration including an illumination section capable of illuminating a surface to be an illumination object, an image projection section making it possible to project an image on the surface to be the illumination object, and a control section adapted to electrically control the illumination section and the image projection section.