Beam Splitter with Diffraction Grating for Multi-Sensor Imaging
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Solution Overview
Problem
Multi-frame imaging techniques face challenges when capturing multiple images of the same scene with different optical properties, as they require time intervals between captures, leading to issues with movement within the scene or device, and using multiple image sensors results in spatial separation and alignment complexities.
Innovation Solution
An optical apparatus utilizing a beam splitter with diffraction gratings to split a beam of light into multiple equivalent beams, which are then incident on different imaging sensors, allowing for simultaneous capture of images with varying exposure, focal lengths, and optical properties without the need for spatial alignment correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple images are captured by the same imaging sensor with time intervals, then different optical properties (exposure, focus) can be achieved, but scene or device movement causes misalignment between images
Solution Approach 1:
The system segments the single light beam into multiple separate beams using a beam splitter, directing each beam to a different imaging sensor. This allows simultaneous capture of multiple images with different optical properties (exposure times, focal lengths) without time delays, eliminating misalignment caused by scene or device movement between captures
Solution Approach 2:
The patent transitions from temporal separation (capturing images at different times) to spatial separation (using multiple sensors positioned at different locations). The beam splitter creates spatially separated image paths, allowing simultaneous capture across different spatial dimensions while maintaining scene consistency
2Reliability
If multiple image sensors are used to capture images simultaneously, then movement issues are avoided, but spatial separation of sensors requires complex alignment correction
Solution Approach 1:
The patent merges multiple image paths at the beam splitter into a single consolidated image. The beam splitter combines light from multiple optical paths (with different exposures and focal lengths) onto a single imaging sensor or sensor array, eliminating the need for complex post-capture alignment corrections that would be required with completely separate sensor systems
Solution Approach 2:
The beam splitter acts as an intermediary optical element that receives light from the scene and distributes it to multiple imaging sensors with different optical configurations. This intermediary component manages the spatial relationships between sensors and light paths, simplifying the overall alignment requirements compared to direct multi-sensor arrangements
3Reliability
If a beam splitter with multiple imaging sensors is used for simultaneous capture, then image alignment is improved, but the device complexity increases
Solution Approach 1:
The beam splitter is designed as a universal optical component that simultaneously handles multiple functions: splitting light into multiple paths, directing beams to different sensors, and maintaining proper optical alignment. This multi-functional design consolidates what would otherwise require separate alignment mechanisms for each sensor, reducing overall system complexity despite the multiple sensors involved
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 simultaneous capture of multiple images with different optical properties, reducing the impact of scene or device movement and simplifying image combination, while maintaining image quality and focus across the scene.
Implementation Method 1
a beam splitter configured to split a beam of light into at least two split beams, such that the at least two split beams are incident on different imaging sensors, wherein the beam splitter comprises at least one diffraction grating
Data Source
AI summary
An apparatus and method wherein the apparatus includes a beam splitter configured to split a beam of light into at least two split beams, such that the at least two split beams are incident on different imaging sensors, wherein the beam splitter includes at least one diffraction grating; and at least two imaging sensors configured to detect the at least two split beams.