Multi-Function Light Pipe for Custom Pattern Projection
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Solution Overview
Problem
Existing lighting assemblies with light pipes lack the ability to project varying patterns, colors, and images effectively, limiting their versatility and aesthetic appeal.
Innovation Solution
A light pipe apparatus comprising a first light source, an optical sheet, a first mask, a second light source, a clear diffusion sheet, a second mask, and a light pipe, where the masks filter and project light to create patterns and images, and the second mask allows light to pass through a longitudinal slot onto the light pipe for projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light pipe assembly uses a single light source and simple optical components, then the device complexity is low, but the ability to project varying patterns, colors, and images is limited
Solution Approach 1:
The light pipe assembly is divided into multiple functional segments: a first light source for base illumination, a second light source for edge lighting, multiple masks with different patterns, and optical sheets. Each segment can be independently controlled to create different lighting effects, enabling versatile pattern projection while maintaining modular complexity
Solution Approach 2:
The light pipe assembly integrates multiple functions into a single device: it can project various patterns through different masks, display different colors through the second light source, create both direct and edge-lit illumination modes, and generate both uniform and patterned light effects. This multi-functionality allows one device to replace multiple separate lighting systems
2Adaptability or versatility
If multiple masks and light sources are added to create customizable patterns, then the adaptability increases, but the device complexity increases
Solution Approach 1:
The optical components are arranged in a nested configuration where the first mask is positioned between the first light source and the optical sheet, the second mask is positioned between the optical sheet and the light pipe, and the second light source edges the clear diffusion sheet. This nested arrangement allows multiple functions to be compactly integrated without excessive space requirements, managing device complexity while maintaining adaptability
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 the projection of customizable patterns and images, enhancing the aesthetic appeal and versatility of light pipe illumination.
Implementation Method 1
at least one optical sheet positioned above the first light source
Implementation Method 2
a first mask positioned above the at least one optical sheet... a second mask positioned above and coplanar with the clear diffusion sheet
Implementation Method 3
a clear diffusion sheet positioned above the first mask... the second light source is positioned to illuminate an edge of the clear diffusion sheet such that the clear diffusion sheet is edge lit
Implementation Method 4
a light pipe positioned above the second mask and aligned with the longitudinal slot such that light passing through the longitudinal slot impinges on at least a portion of the light pipe for projection from the light pipe
Data Source
AI summary
This disclosure describes a light pipe apparatus which comprises several elements: a first light source, at least one optical sheet positioned above the first light source, a first mask comprising inverted images positioned above the optical sheet, a second light source, at least one clear diffusion sheet, a second mask comprising a slot positioned above the second mask, and a light pipe. Light in the form of an image from the first mask illuminates and passes through the clear diffusion sheet. An edge of the clear diffusion sheet is aligned with the second light source. The second mask is aligned with the faces of the clear diffusion sheet and positioned between the clear diffusion sheet and the light pipe. Each of the first light source and the second light source may be monochromatic or vary in color. Parameters such as timing, intensity, pulsing, oscillation, etc. may be independently controlled.