Lunar Image Projection System Using Intermediary Reflection
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Solution Overview
Problem
Current methods for projecting images onto the lunar surface or other celestial bodies are invasive, obtrusive, and face technological and legislative challenges, such as the limitations of laser technology and bans on obtrusive advertising in space, while also being costly and difficult to finance.
Innovation Solution
A system comprising a projector and camera on a satellite or lunar surface that projects and captures images on the far side of the moon or other celestial body in its dark phase, using a laser to form images that are enhanced in contrast and visually unobtrusive, with a transmitter to relay the images to Earth, avoiding surface alteration and legislative issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If powerful lasers are beamed onto the moon's surface from Earth to display advertising images, then images can be projected on the lunar surface, but the visibility is very poor and the technology is limited due to the vast distance
Solution Approach 1:
The patent introduces an intermediary reflective surface (mirror or retroreflector) positioned between the laser source on Earth and the lunar surface. This intermediary reflects and concentrates the laser beam onto the moon, significantly enhancing image visibility and projection reliability without requiring direct Earth-to-moon laser transmission
Solution Approach 2:
The patent changes the operational parameters by using intermediate reflection rather than direct transmission. The reflective surface alters the laser beam's path and concentration, transforming the projection system from direct Earth-to-moon beam to an Earth-to-intermediary-to-moon indirect system, thereby improving image quality
2Illumination intensity
If engraved areas on the lunar surface are used to cast shadows for advertising images, then images can be displayed on the moon, but the system is invasive and obtrusive to the appearance of the moon
Solution Approach 1:
Instead of permanently altering the lunar surface through engraving, the patent uses a reflective intermediary that temporarily reflects laser patterns to create shadow images. This creates a visual copy of the advertisement without physically modifying the moon's surface, eliminating permanent defacement while maintaining image contrast
Solution Approach 2:
The patent replaces the mechanical engraving system with an optical reflection system. Instead of using physical machinery to carve shadows into the lunar surface, the system uses laser beams reflected off an intermediary surface to project transient shadow images, eliminating the need for surface-altering mechanical processes
3Loss of information
If advertising images are projected on the near side of the moon, then images are visible from Earth, but the images are obtrusive and face legislative bans on obtrusive advertising in space
Solution Approach 1:
The patent applies local quality by concentrating the advertising projection on a small, localized area of the lunar surface rather than large-scale surface modifications. The reflective intermediary enables focused, localized image projection that is less obtrusive to the overall lunar appearance while maintaining advertising effectiveness
Solution Approach 2:
The patent uses partial action by projecting images only during specific times when the lunar phase provides natural darkness on the near side, rather than continuous projection. This temporal limitation reduces obtrusiveness while maintaining advertising visibility during optimal windows
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 system provides a non-invasive, cost-effective means to project and view images on celestial bodies, enhancing contrast and avoiding surface defacement, while complying with legal restrictions and optimizing visibility through enhanced image projection techniques.
Implementation Method 1
The image may be of any desired form and may be static or mobile in appearance
Implementation Method 2
a camera facing the far side of the moon and that operates to capture the image as projected on the moon
Data Source
AI summary
A lunar image projection system is configured primarily for projecting and viewing images on the lunar surface, eg for lunar advertising, and which utilizes a projector that suitably operates to project and target an image onto an area in the dark phase and suitably on the far side of the moon, the system may further include a camera that operates to capture the image as projected on the moon and a transmitter to transmit the captured image to a remote viewer back on earth, the system thereby facilitating the use of the moon as a display screen for images, without obtruding on the appearance of the moon as viewed from earth, and when deployed on the far side with further advantage of avoiding the effect of contrast loss due to earth shine that the moon's near side surface is exposed to.