18742015. DETECTION DEVICE simplified abstract (The University of Tokyo)
Contents
DETECTION DEVICE
Organization Name
Inventor(s)
Takashi Nakamura of Tokyo (JP)
DETECTION DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18742015 titled 'DETECTION DEVICE
The patent application describes a detection device with multiple photodiodes sensitive to different light wavelengths.
- The device includes a first detection circuit with two photodiodes sensitive to different lights, and a second detection circuit with a third photodiode sensitive to another light.
- The first and second photodiodes are connected in series in opposite directions to form a detection element.
- The first detection element is connected to a signal line via a transistor and supplied with a drive signal.
- The third photodiode is connected to another signal line via a transistor and supplied with a different drive signal.
Potential Applications: - This technology can be used in various optical sensing applications where different light wavelengths need to be detected separately. - It can be applied in color sensing devices, light intensity measurement tools, and optical communication systems.
Problems Solved: - The device allows for the separate detection of multiple light wavelengths efficiently and accurately. - It simplifies the design of optical sensing systems by integrating multiple photodiodes in a single device.
Benefits: - Improved accuracy in detecting different light wavelengths. - Simplified circuit design for optical sensing applications. - Enhanced performance in color sensing and optical communication systems.
Commercial Applications: Title: Multi-Wavelength Detection Device for Optical Sensing Applications This technology can be commercialized in industries such as: - Consumer electronics for color sensing in displays and cameras. - Industrial automation for quality control and sorting based on light wavelengths. - Telecommunications for optical signal processing and data transmission.
Questions about the technology: 1. How does the device differentiate between different light wavelengths for detection? 2. What are the advantages of using multiple photodiodes in series for optical sensing applications?
Original Abstract Submitted
According to an aspect, a detection device includes: a first detection circuit including a first photodiode sensitive to first light and a second photodiode sensitive to second light; and a second detection circuit including a third photodiode sensitive to third light. The first photodiode and the second photodiode are coupled in series and in opposite directions to form a first detection element. One end side of the first detection element is coupled to a first signal line via a first transistor. Another end side of the first detection element is configured to be supplied with a first drive signal. A cathode of the third photodiode is coupled to a second signal line via a second transistor. An anode of the third photodiode is configured to be supplied with a second drive signal.
