Projection Display Shelf Layout for Wire-Free Article Illumination
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Solution Overview
Problem
Existing display shelves require electric wiring for lighting, which can be aesthetically unappealing and pose logistical challenges in hiding wires within the shelf structure.
Innovation Solution
A display shelf system that uses transmission-type screens and a projector to project image light onto the screens from the back side, with optical systems to direct partial image light to both the screens and the placing spaces, eliminating the need for internal lighting and wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If electric lights are arranged inside the display shelf to illuminate articles, then the articles are illuminated and visible to customers, but electric wires have to be hidden inside the display shelf or behind placing tables which complicates the structure and reduces aesthetic appeal
Solution Approach 1:
The patent extracts the lighting function from traditional electric light sources and relocates it to a projector positioned outside the display shelf. The projector projects light through transmission-type screens to illuminate articles, eliminating the need to hide electric wires inside the shelf structure while maintaining effective article illumination.
Solution Approach 2:
The patent introduces transmission-type screens as intermediary elements between the projector and the articles. These screens transmit projected light to illuminate articles placed on placing tables, enabling indirect illumination that avoids the need for internal wiring while achieving the desired lighting effect.
2Adaptability or versatility
If transmission-type screens are used to transmit projection image light from back side to front side, then the screens can display images and illuminate articles simultaneously, but the light intensity may be reduced after transmission
Solution Approach 1:
The patent utilizes the transmission property of the screens by projecting light from the back side through the screen to the front side. This dimensional approach allows the screen to simultaneously function as a display medium for images and as a light transmission medium for illuminating articles, achieving dual functionality without compromising either purpose.
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
Effectively illuminates articles on display without the need for electric wiring, enhancing aesthetics and simplifying installation by using projected image light as both display content and illumination.
Implementation Method 1
a transmission-type screen capable of transmitting a projection image light, which is projected on the screen, from a back side to a front side of the screen
Implementation Method 2
a first optical system which leads first partial image light, which is included in the projection image light, to the back sides of the screens; and a second optical system which leads second partial image light
Data Source
AI summary
Screens are positioned at front areas of respective placing tables which form placing spaces for placing an article. Each of the screens is a transmission-type screen capable of transmitting projection image light projected on a back side of the screen. A first optical system and a second optical system are arranged inside the display shelf. The first optical system leads first partial image light, which is included in projection image light projected from a projector in the display shelf, to the back sides of the screens. And the second optical system leads second partial image light, which is included in the projection image light, to at least one of the placing spaces.