Focal Modulation Tuning Assembly for Variable Depth Display
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Solution Overview
Problem
Prior art image display technologies present unrealistic images due to a constant focal point of light throughout the image, failing to accurately represent depth by maintaining a single focal length and focal point, which does not align with human perception of objects at varying distances.
Innovation Solution
The system employs a tuning assembly to modify the focal point of light within an image, allowing for multiple focal points and depths within a single displayed image by using tunable lenses, movable lenses, or deformable mirrors to adjust the focal length, enabling the creation of subframes that correspond to different depth regions, thereby simulating realistic depth perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If prior art image display technologies use a constant focal point throughout the image, then the display system is simple and easy to manufacture, but the images appear unrealistic and do not accurately represent depth
Solution Approach 1:
The patent applies dynamics by making the focal point variable rather than constant. The tuning assembly dynamically adjusts the focal length for different depth regions within the image, allowing the system to adapt to represent objects at varying distances realistically. This transforms the static optical system into a dynamic one that can modulate focus in real-time.
Solution Approach 2:
The patent segments the image into multiple depth regions, each with its own focal point. The tuning assembly divides the optical field to apply different focal lengths to different portions of the image corresponding to different depth planes, enabling realistic depth representation through spatial segmentation.
2Manufacturing precision
If prior art 3D technologies present separate images to each eye, then depth illusion is created, but the focal distance of all objects remains the same making the image unrealistic
Solution Approach 1:
The patent applies local quality by giving different focal properties to different regions of the image. Each depth region has its own optimized focal length, allowing the system to provide accurate focal distance for specific areas while maintaining overall image coherence. This enables realistic depth perception for objects at various distances within the same view.
Solution Approach 2:
The system dynamically adjusts focal length based on the depth region being displayed, allowing the focal distance to vary throughout the image rather than remaining constant. This dynamic focal modulation enables viewers to experience realistic focus changes as if viewing objects at different actual distances.
3Manufacturing precision
If prior art technologies blur background or foreground images to enhance depth illusion, then depth perception is improved, but viewers cannot shift focus to the blurred area
Solution Approach 1:
The patent makes the focal point dynamic and adjustable, allowing it to be shifted to different depth regions as needed. Unlike static blurring techniques, this system can dynamically reposition the focal plane, enabling viewers to shift focus to previously blurred areas by adjusting the tuning assembly to the appropriate focal length for the desired depth region.
Solution Approach 2:
The system changes the focal length parameter to control which depth region is in focus. By varying this optical parameter, the system can shift focus between different depth planes, allowing viewers to examine objects at various distances by adjusting the focal length to match the desired depth region.
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
This approach enhances the realism of displayed images by allowing viewers to focus on objects at varying distances, similar to real-world interactions, by dynamically varying the focal points within the image, creating multiple depth regions that can be adjusted based on viewer attention and eye tracking, resulting in a more immersive and realistic visual experience.
Implementation Method 1
a tuning assembly (700) that modifies a focal point (870) of the light (800)
Data Source
AI summary
A system (100), apparatus (110), and method (900) for displaying an image (880). The light (800) in the image (880) is modified by a tuning assembly (700) to possess more than one focal point (870). Thus a single image (880) can include multiple depth regions (860). Each depth region (860) can be comprised of light (800) possessing a distinct focal point (870). The tuning assembly (700) can be implemented in the form a tunable lens (710), a tunable lens array (720), a movable lens (730), or a deformable mirror (740).