Stereoscopic Imaging Optical System Assembly with Variable Focus Vergence
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Solution Overview
Problem
Conventional stereoscopic imaging optical systems have limitations in achieving a wide angle of view and high resolution while maintaining a compact size, often resulting in image distortion and requiring complex mechanical linkages or large optical systems.
Innovation Solution
A stereoscopic imaging optical system assembly comprising a first and second optical system, both rotationally symmetric with respect to their respective center axes, and a variable optical system that includes a variable optical element capable of changing focus and vergence, allowing for compact and distortion-free stereoscopic imaging with a wide angle of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stereoscopic imaging optical systems use two imaging optical systems arranged in parallel, then stereoscopic images can be captured, but the system size becomes large and mechanical linkages become complex
Solution Approach 1:
The patent merges two separate imaging optical systems into a single integrated optical system that uses beam splitting to achieve stereoscopic imaging. Instead of maintaining two independent optical paths with complex mechanical linkages, the invention combines the optical paths after a single objective lens, using a beam splitter to direct light to two imaging devices, thereby simplifying the mechanical structure while preserving stereoscopic capability
Solution Approach 2:
The patent segments the optical path after the objective lens using a beam splitter, dividing the single optical path into two separate paths for the left and right imaging devices. This segmentation allows independent adjustment of each imaging path while sharing the common objective lens, reducing overall system complexity
2Area of moving object
If conventional stereoscopic imaging optical systems are designed for wide angle of view, then field coverage is improved, but image distortion increases
Solution Approach 1:
The patent employs aspheric lenses with specifically optimized surface parameters to correct image distortion while maintaining a wide angle of view. The aspheric surfaces allow for broader field coverage without the pin-cushion or barrel distortion typical of conventional spherical lenses, achieving both wide angle and high image quality
3Measurement precision
If conventional stereoscopic imaging optical systems use high resolution imaging, then image quality is improved, but system size increases
Solution Approach 1:
The patent combines two imaging optical systems into one integrated system that serves both stereoscopic viewing and high-resolution imaging functions. The shared objective lens and beam splitting architecture allow high-resolution capture without requiring two separate large optical systems, thereby maintaining compact size while achieving high measurement precision
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 capture of stereoscopic images with a wide angle of view and high resolution without image distortion, facilitating normal stereoscopic observations of objects as close as 100 mm, and allows for simple focus and vergence adjustments, improving the performance and size efficiency of the imaging system.
Implementation Method 1
a variable optical system that is located in such a way as to intersect the respective optical paths through said first optical system and said second optical system, characterized in that: said variable optical system includes at least one variable optical element capable of changing at least either one of focus and vergence
Data Source
AI summary
A stereoscopic imaging optical system assembly including a first optical system at least including, in order from an object side to an image plane side, a negative lens and an aperture, the first optical system being rotationally symmetric with respect to a first center axis, a second optical system that is rotationally symmetric with respect to a second center axis parallel with the first center axis, and that has the same construction as, and is located in parallel with, the first optical system, and a variable optical system located in such a way as to intersect the respective optical paths through the first optical system and the second optical system. The variable optical system effects a change of at least either one of focus and vergence.