Uniform Art Lighting via Diffusing Film and Multi-Row Arrays
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Solution Overview
Problem
Conventional lighting systems for art works often create non-uniform illumination with hot spots and intensity gradients, particularly due to the use of attenuators that block or dissipate light, resulting in aesthetically undesirable lighting.
Innovation Solution
The use of diffusing films and specialized optics, such as parabolic reflectors and total internal reflection lenses, in multiple light arrays to scatter light uniformly across the art work, eliminating the need for attenuators and allowing for adjustable intensity and angle control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If attenuators are used to control light intensity, then lighting uniformity is improved, but light loss increases and efficiency decreases
Solution Approach 1:
The patent introduces a diffusing film as an intermediary element between the light source and the artwork. This diffusing film scatters light uniformly across the artwork surface without blocking or absorbing significant light, thereby achieving lighting uniformity while minimizing energy loss. The diffusing film acts as a mediator that redistributes light intensity rather than attenuating it.
Solution Approach 2:
The patent changes the optical parameters of the light transmission system by using a diffusing film with specific scattering properties. Instead of using attenuators that reduce light intensity, the diffusing film modifies the light distribution pattern through controlled scattering, achieving uniform illumination while maintaining high light transmission efficiency.
2Illumination intensity
If multiple light arrays with different intensities and angles are used, then lighting uniformity is improved, but device complexity increases
Solution Approach 1:
The patent divides the lighting system into multiple independent light arrays, each capable of being adjusted individually in terms of intensity and angle. This segmentation allows each light array to be optimized for specific zones of the artwork, achieving overall uniform lighting while maintaining manageable complexity through modular design.
Solution Approach 2:
The patent incorporates adjustable and dimmable light arrays that can dynamically change their intensity and angular orientation. This dynamic capability allows the system to adapt to different artwork sizes and configurations without requiring a completely different hardware setup, thereby managing complexity through software/control-based adjustment rather than fixed complex hardware.
3Ease of manufacture
If lights are placed immediately above the artwork, then installation simplicity is improved, but lighting uniformity deteriorates due to hot spots and intensity gradients
Solution Approach 1:
The patent places a diffusing film as an intermediary between the light source positioned above the artwork and the artwork surface itself. This intermediate element scatters the light before it reaches the artwork, eliminating hot spots and intensity gradients while allowing the light source to remain positioned simply above the artwork for easy installation.
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
Achieves substantially uniform lighting across the art work, with a 50% intensity threshold undetectable by the human eye, providing an aesthetically pleasing and efficient illumination solution without the inefficiencies of attenuators.
Implementation Method 1
Diffusing film is comprised of a thin piece of material—typically plastic—that scatters light as it passes through it
Implementation Method 2
The light sources on inner-most row—which is designated as module one or the first module—are focused by parabolic reflectors and directed towards the art work
Implementation Method 3
The outer-most row of lights (module two) preferably has total internal reflection (TIR) lenses instead of parabolic reflectors
Data Source
AI summary
A lighting system and process for lighting objects particularly art works such as paintings and sculptures, comprising a diffusing film that scatters the light such that the object is illuminated substantially uniformly. The preferred embodiment employs one row of such lighting sources for small objects, and two or more rows for larger objects. The inner row is directed towards the top portion of the object and the outer row is directed towards the bottom portion of the object. The rows need not be placed next to each other. For 3-dimensional objects, one row may be below the object and the other row above to eliminate shadows.