hiroshi kumai

・Collecting various design data, taking images, and documenting them for quantitative evaluation of digital cameras/lenses ・Digital camera image quality tuning ・Performance and quality evaluation of digital cameras/lenses ・Benchmark comparison evaluation of our own and other companies' cameras and lenses ・Verifying design tools required for design and development ・Image quality design

Engineer, optoelectronic devices, application development of KTN crystals [Responsibilities] Support for application technology and product development of optoelectronic devices and KTN crystals - Evaluation of FSO communication devices using KTN crystals - Evaluation of laser ranging devices applied to optical modulators & phase modulators - Measurement work of EO effects using lasers - Construction and operation of automatic measurement bench using LabVIEW/Python -Hardware control by Raspberry Pi OS - Appearance of optical crystals ・Characteristic inspection, analysis of measurement data and report writing Support verification of practical application of next generation optical communication technology through optimization study of optical modulation speed and drive voltage. Job Keywords] EO effect / electro-optical modulation / FSO communication / KTN crystal / laser ranging / optical evaluation / high-speed modulator / wavelength control / fiber optics / phase control / waveform analysis / optical communication technology

Evaluation engineer, research and development of new CMOS MEA sensors, new business development [Dispatch source] Staff Service Engineering Co., Ltd. Contract employee Permanently dispatched to Sony Semiconductor Solutions Co., Ltd. [Responsible duties] ・Evaluation, analysis, inspection, test report, and related support services for microelectrode arrays and biosensors ・Construction of an evaluation environment compatible with integrated biosensor MEMS development ・Data analysis using Python R language Matlab SQL ・Investigation of mass data compression and processing algorithms ・Time series data analysis using Fourier transform, etc. ・Study of temperature control regarding test equipment ・Examination of experimental equipment [Environment/Tools] ・Excel VBA, Python, MATLAB, R,SQL ・PID temperature control Proportional-Integral-Differential Controller ・Sony sensor evaluation board, PC application software for evaluation ・Optical microscope ・Experimental equipment

Resident dispatch from Quest Global Japan K.K. (Temporary staffing agency) [Affiliation] Mobile Systems Division [Product] CMOS Image Sensors for Chinese Smartphone Makers Duties] Product evaluation and analysis of image sensors, development of measurement specifications, optimization of characteristics, testing and defect verification, etc. Optimization of CIS internal register settings CIS image quality evaluation, noise reduction tuning, ADC timing adjustment Image noise analysis, electrical noise analysis Image quality design simulation work, parameter tuning (noise), quantitative evaluation measurement Creation of test programs for measurement equipment Planning, creation, implementation, and improvement of evaluation items Environment/Tools Excel VBA, Python, VISA library Sony's in-house image sensor evaluation board, PC application software for evaluation Sony's image quality evaluation software, image quality simulation software Sony's image quality evaluation software, image quality simulation software ・Oscilloscopes, digital multimeters, and other electrical characteristics measurement equipment Resigned due to a gap between the desired job and the company due to company integration and organizational changes at the client company.

【Affiliation】Japan R&D Center Products] CMOS image sensors for smartphones, PCs, surveillance cameras, automobiles, etc. 【Job】Product evaluation and analysis of image sensors. Product evaluation and analysis of image sensors, development of measurement specifications, optimization of characteristics, testing and failure verification, etc. Optimization of internal register settings (sensitivity irregularity, band noise reduction, PSRR improvement, etc.) Image noise analysis, circuit noise analysis, power consumption measurement Creation of test programs for measuring instruments, operation of measuring instruments in conjunction with each other Planning, creation, implementation, and improvement of evaluation items Environment/Tools In-house image sensor evaluation board, PC application software for evaluation Electrical characteristics measurement equipment such as oscilloscopes and digital multimeters Excel VBA, Octave, VISA library Resigned because evaluation and wages did not increase even though work efficiency was improved.

■Development and Evaluation Department [Number of members] 5 Position] Chief Products] CMOS image sensors for smartphones, PCs, surveillance cameras, automobiles, medical equipment, etc. Responsibilities] [Job Title] Senior Manager Product evaluation and analysis of image sensors, formulation and optimization of measurement specifications, testing and defect verification, etc. Create and implement in-house evaluation rules based on the Standard Mobile Imaging Architecture (SMIA) standard. Product evaluation and analysis of Transmissive Diffraction Mask 3D image sensors Planning, design, and production of measurement devices Evaluation of light incidence angle characteristics Evaluation of general characteristics of back-illuminated BSI image sensors Evaluation of phase detection AF (PDAF) performance of image sensors Evaluation of semiconductor noise immunity Image noise analysis, electrical noise analysis Performance analysis and comparison of image sensors of other companies' products Creation of test programs for measuring instruments Planning, creation, implementation, and improvement of evaluation items Environment/Tools In-house image sensor evaluation board Electrical characteristics measurement devices such as oscilloscopes and digital multimeters Evaluation boards provided by image sensor manufacturers Image processing software, analysis software, Imatest Master, ImageJ Microsoft Office, MS-DOS, Linux, Java Equipment related to image evaluation, optical measurement equipment, and environmental equipment Efforts, Results, and Evaluations Establishment and improvement of evaluation methods Contribution to efficiency improvement of development process Contributed to the efficiency of the development process. ＜Knowledge and Skills Acquired Extensive knowledge of CMOS image sensors Knowledge of camera shooting conditions and image quality evaluation Basic knowledge of optics such as lenses, light sources, filters, etc. RAW and JPEG image analysis techniques

Image Communication Business Unit [number of members] 20 Products] Digital SLR cameras, Digital compact cameras Products] Digital SLR cameras, digital compact cameras Responsible for image quality examination, evaluation of characteristics, and development of evaluation technologies for digital cameras. Characteristics evaluation of large image sensors (35mm, APS-C) for digital SLR cameras Characteristic evaluation of stacked CMOS sensors Analysis of temperature-dependent characteristics of image noise Investigation of lightweight technology for sensor mounting boards Evaluation and Analysis of Image Sensor Mounting Evaluation of Dual Pixel CMOS autofocus. Investigation of AWB effects on images due to various types of artificial and natural lighting Devised ideas for development study tools (hardware and software) Developed test programs for camera evaluation. Developed a test program for camera evaluation. Measurement of noise, color variation, shading, temperature characteristics, etc. Study and evaluation of noise image correction technology Evaluate the effect of magnetic noise on CMOS image sensors Comparison of CCD and CMOS image sensor image quality among semiconductor manufacturers Comparison and investigation of image quality performance of competing camera models Simulation of RAW image data development and JPEG evaluation Comparative study of AF pixel array Comparative study of infrared filter performance Comparative study of image sensor driving methods (still image, moving image) Comparative study of image sensor drive methods (still and moving images) ・Study of data analysis methods (statistical processing, macro tabulation) Environment/Tools In-house evaluation board, evaluation board provided by sensor manufacturer Canon's in-house image processing and analysis software