Liquid Screen Projection System for 3D Depth Perception
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Solution Overview
Problem
Existing projection systems struggle to display three-dimensional images with a cubic effect due to their inability to effectively project plane images that correspond to sectional shape data, resulting in a lack of depth perception in projected images.
Innovation Solution
A projection system comprising a screen forming device with nozzles that eject liquid onto the optical path of image light, a projection device with a light modulating mechanism to form and project image light, and a control device that generates sectional shape data from three-dimensional shape data to synchronize the ejection of liquid and image projection, allowing for the accurate projection of cubic images by correlating coordinates and timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a projection system uses a fan to blow mist generated by an ultrasonic transducer to form a screen, then a screen can be formed for projecting images, but it is difficult to display images with cubic effect or depth perception
Solution Approach 1:
The invention divides three-dimensional shape data into multiple sectional shape data along the optical axis direction. Each sectional shape corresponds to a specific depth position, allowing the projection system to display three-dimensional images by sequentially projecting these sections onto screens at different depths, thereby achieving cubic effect and depth perception
Solution Approach 2:
The invention adds the depth dimension (optical axis direction) to the traditional two-dimensional projection. By forming screens at multiple positions along the optical axis and projecting corresponding sectional images to these screens, the system transforms plane image projection into three-dimensional image display, enabling cubic effect
2Device complexity
If the projection system projects plane images obtained by developing image data on video RAM, then image projection is simple, but it is difficult to display images having cubic effect
Solution Approach 1:
The invention segments three-dimensional shape data into multiple two-dimensional sectional shapes along the optical axis. This segmentation allows the system to process and project each section separately while maintaining the overall three-dimensional structure, achieving cubic effect without requiring completely new projection technology
Solution Approach 2:
The invention performs preliminary processing of three-dimensional shape data by dividing it into sectional shape data before projection. This pre-processing step organizes the three-dimensional information into a format suitable for sequential projection onto multiple screens, enabling efficient three-dimensional display
3Manufacturing precision
If the nozzles are disposed side by side on an X-Y surface and liquid is ejected to form screens, then screens can be formed at specific positions, but coordinating the ejection timing with image projection requires precise matching
Solution Approach 1:
The invention implements a coordinate matching mechanism that correlates the positions of nozzles on the X-Y surface with the positions of pixels in the projection device. This feedback system ensures that liquid ejection timing and position are precisely synchronized with image projection, maintaining accurate screen formation at the intended positions
Solution Approach 2:
The invention replaces complex mechanical coordination with a data-based matching system. By correlating coordinates of sectional shape data with pixel coordinates and nozzle positions through software processing, the system achieves precise synchronization without requiring complex mechanical linkages
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 stereoscopic images with a rich cubic effect by accurately forming and projecting plane images that correspond to sectional shape data, enhancing depth perception and visual recognition of three-dimensional shapes.
Implementation Method 1
a screen forming device including a plurality of nozzles and configured to form the screen by ejecting liquid onto an optical path of the image light from the nozzles
Data Source
AI summary
A projection system includes a screen forming device configured to form a screen by ejecting liquid from a plurality of nozzles and a projector, acquires three-dimensional shape data formed by a three-dimensional coordinate system having an X axis, a Y axis, and a Z axis, divides the three-dimensional shape data in an X-axis direction to generate sectional shape data, acquires coordinates of the sectional shape data, executes matching processing for correlating the coordinates of the sectional shape data, pixels with which the projector draws an image, the nozzles of the screen forming device, and heights in an ejection space of the liquid ejected from the nozzles, and projects an image onto the screen according to the correlation by the matching processing.