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Applications
Published in Akihiro Miyauchi, Nanoimprinting and Its Applications, 2019
Akihiro Miyauchi, Hiroshi Sato
A microlens is an important component of optical sensors, LEDs, cameras, and other electronic devices. By using the antireflection technology described in Section 10.1.1, the optical characteristic of a microlens can be enhanced.
Microlens
Published in Kenichi Iga, Yasuo Kokubun, Encyclopedic Handbook of Integrated Optics, 2018
A microlens is defined as a lens with relatively small dimensions ranging from a few microns to several millimeters [1] for its use in microoptics [2]. Wide applications of microlens arrays for arrayed device coupling and parallel optical image processing have been developed [3]. The arrayed microoptics technology would be very helpful for advanced ultra-parallel optical systems. This concept has become important in order to avoid complexities in optical coupling between various optical components. A key component is a microlens and several methods to realize this has been developed.
Microoptics
Published in Christoph Gerhard, Optics Manufacturing, 2018
In the last decades, microoptical components and systems have gained in importance in a number of different fields of applications in which pure microoptical, optoelectronic, or optomechanical systems are required. For example, microoptical elements are essential key devices of daily-used convenience goods such as multimedia terminals, safety devices, and medical equipment. Microlenses are used in fiber couplers for telecommunication, in CD, DVD, and blue-ray players, in micro cameras for safety monitoring or park assistance devices, as well as in endoscopes for diagnosis and surgery applications. Moreover, microoptics is of essential relevance in both industrial manufacturing and vision, as well as research. Here, microlens arrays allow the homogenization of laser beams and the legalization of light-sections for scanners or microscopic analysis systems.
Binocular microlens imaging system based on micro fabrication technology and its application in vein-enhanced display
Published in International Journal of Optomechatronics, 2019
In this article, a binocular microlens was developed by micro-fabrication process contains photolithography, coating, and thermal reflow.[4,5] After that, a smart binocular microlens imaging system is set up. By this system, the NIR image with venous distribution and visible light image with actual skin color can be obtained at the same time. Besides, a new algorithm is also proposed to fuse the two images. The experiment result shows that the venous distribution can be clearly displayed and the background color of the hand can be well preserved. As the smart structure and effective algorithm, the proposed imaging system can be applied to the venipuncture assisting device such as intelligent glasses.