Shadow projecting device
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Solution Overview
Problem
There is a need for devices that can effectively project the symbol of a cross for faith-sharing purposes while also providing a unique and commemorative storage space for a Bible, as existing solutions do not adequately combine these functions.
Innovation Solution
A shadow projecting device with an upper receptacle containing sand and vertical projections in the shape of a cross, accompanied by a light source to create shadow projections and a horizontal shelf or drawer for storing a Bible, allowing for the display of a Bible alongside the shadow projections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the vertical projection extends high above the rear wall to create a visible shadow, then the shadow projection effectiveness is improved, but the device height and complexity increase
Solution Approach 1:
The patent applies local quality by concentrating the projection height specifically at the cross-shaped vertical elements while maintaining a compact overall device structure. The sand is contained within a controlled cavity, allowing localized vertical extension where needed for shadow projection without proportionally increasing the entire device height.
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
The device effectively projects the shape of a cross onto a background surface while providing a dedicated storage space for a Bible, serving both as a faith-sharing mechanism and a commemorative storage solution.
Implementation Method 1
A light source is associated with the front wall. A background surface is spaced rearwardly from the rear wall. Light source shines light rays generally upwardly and rearwardly towards the first vertical projection to form a shadow having a shape of the first vertical projection on the background.
Data Source
AI summary
A shadow projecting device includes a box which acts as a base. A four sided cavity is formed within the box. Sand is provided and retained within the cavity. Crosses extend upwardly through the sand above the box. Stones may be provided on the sand. A light source is provided at the front of the box. The light is directed rearward and upward to illuminate the crosses and create a shadow on a wall behind the box. The size of the shadow on the wall varies according the distance of the box from the wall.