Integrated Light Receiving Emitting Device Pixel Control
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Solution Overview
Problem
Existing light receiving and emitting devices lack the capability to capture detailed images and precisely radiate light to desired positions due to the absence of an imaging optical system and controlled light emission.
Innovation Solution
A light receiving and emitting device with a plurality of pixels for photoelectric conversion, integrated light emitting units, and an imaging optical system that forms images on the pixels, allowing independent control of light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an imaging optical system is added to enable image capture, then image capture capability is improved, but device complexity increases
Solution Approach 1:
The patent combines the imaging optical system and light emitting units into a single integrated device. The imaging unit captures images while the light emitting units radiate light to desired positions, merging two previously separate functions into one compact device, thereby improving image capture capability without proportionally increasing overall device complexity
Solution Approach 2:
The device achieves multi-functionality by integrating both imaging and light emission capabilities in one unit. This universal design allows the device to perform multiple tasks (image capture and targeted light radiation) simultaneously, resolving the contradiction by making the complex device highly versatile and justifying the complexity through enhanced functionality
2Volume of moving object
If light emitting units are integrated with pixels, then device compactness is improved, but light emission control precision deteriorates
Solution Approach 1:
The light emitting portion is divided into multiple independently controllable light emitting units corresponding to different pixel regions. Each light emitting unit can be controlled separately, maintaining precision even in the integrated compact structure. This segmentation allows precise control of which regions emit light while keeping the overall device compact
Solution Approach 2:
Different regions of the device have different functions: some regions contain pixels for image capture while others contain light emitting units for radiation. This local differentiation of quality allows the compact integrated structure to maintain precise control over light emission by assigning specific functions to specific locations
3Device complexity
If sequential light emission is used for all pixels, then device complexity is reduced, but light radiation precision to desired position deteriorates
Solution Approach 1:
The control system dynamically selects which light emitting units to activate based on the captured image and desired target position. Rather than fixed sequential emission, the system adaptively controls light emission timing and location, achieving precise radiation to desired positions while maintaining relatively simple control logic through image-based targeting
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 both precise image capture and targeted light emission with a compact configuration, suitable for various applications including optical communication and medical endoscope systems.
Implementation Method 1
a plurality of pixels that receive light and perform photoelectric conversion through which an electric signal corresponding to an amount of the light is output
Data Source
AI summary
There is provided a light receiving and emitting device including: a light receiving and emitting unit configured to have a plurality of pixels that receive light and perform photoelectric conversion through which an electric signal corresponding to an amount of the light is output and a plurality of light emitting units that emit light, the two or more light emitting units being disposed for every two or more pixels; an imaging optical system configured to form an image on the pixels of the light receiving and emitting unit; and a control unit configured to independently control light emission of the plurality of respective light emitting units.