KEYWORDS: Optoelectronics, Light emitting diodes, LED displays, Sensors, Automatic tracking, Infrared radiation, Lamps, Infrared detectors, Signal processing, Control systems
Driven by the idea of students-centered, aptitude-oriented cultivation, that is to educate each student according to his natural ability, the course content of the optoelectronic technology is optimized and integrated, and the extension project is added according to the ability of different students, which involves the scientific frontier and the practical training. To ensure the final implementation of the course reform, the assessment modes are designed and students are allowed to select their assessment test according to their interest and ability, just like a set menu. No matter what kind of assessment modes the students choose, all classmates are required to give an oral presentation about their extension project. The realization of multifaceted assessment enhances students’ participation and devotion to the course.
It is noticed that more and more students in college are passionately curious about the optoelectronic technology, since optoelectronic technology has advanced extremely quickly during the last five years and its applications could be found in a lot of domains. The students who are interested in this area may have different educational backgrounds and their majors cover science, engineering, literature and social science, etc. Our course “History of the Optoelectronic Technology” is set up as an interdisciplinary lecture of the “liberal education” at our university, and is available for all students with different academic backgrounds from any departments of our university. The main purpose of the course is to show the interesting and colorful historical aspects of the development of this technology, so that the students from different departments could absorb the academic nourishment they wanted. There are little complex derivations of physical formulas through the whole lecture, but there are still some difficulties about the lecture which is discussed in this paper.
Because of the magnification chromatic aberration and the transverse chromatic aberration caused from different wavelengths of color lasers in the process of color holographic optoelectronic reconstruction based on DMD, the reconstructed holograms of three color components can not coincide. Firstly, on the reference of blue color component, the magnification chromatic aberration of the original image is eliminated. Secondly, according to the analysis of the incident angles of three lasers, the transverse chromatic aberration is eliminated by adjusting the incident angles. At last, the synthesized color hologram is obtained by means of the experiments based on DMD. The method proposed in this paper does not use any lens, so there is no axial chromatic aberration.
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