Simulation and investigation of parameters for light beam concentrators
Now, in many fields of applied optics, the focusing Fresnel lenses are used. Mostly, such devices are created for tracking different objects; they are used also for forming the precise visual images, even with a changing focal distance, for solar concentrators, and for many other applications. Diffe...
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Інститут проблем реєстрації інформації НАН України
2020
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drspiprikievua-article-2188032020-12-23T11:16:52Z Simulation and investigation of parameters for light beam concentrators Моделювання та дослідження параметрів концентраторів світлових променів Petrov, V. V. Antonov, E. E. Zenin, V. N. Manko, D. Yu. Shanoilo, S. M. мікрорельєфна структура гомогенізація світлових променів коефіцієнт пропускання кутовий розподіл інтенсивностей моделювання фокусуючої оптики microrelief structure light beam homogenization transmission coefficient light intensity angular distribution simulation of focusing optics Now, in many fields of applied optics, the focusing Fresnel lenses are used. Mostly, such devices are created for tracking different objects; they are used also for forming the precise visual images, even with a changing focal distance, for solar concentrators, and for many other applications. Different methods have been proposed for designing such optics. The flat focusing Fresnel structures were manufactured by the photolithography methods or by the adjustable direct laser recording with photoresists. Such methods allow the formation of known stepped structures [10–15] but the optical quality of images obtained with such aspherical surfaces is not very good. The high-quality images are not practically realized due to the defects of created aspherical surfacesHowever, for some light signal processing systems it is necessary to convert a parallel circular light beam into a uniformly illuminated light circle instead of focusing. Such transforming Fresnel lenses are often used in the optical sensor systems for imaging and optoelectronic integration or in the monitoring devices for automatically adjusting the output signal from the four-quadrant photodetectors. These structures can be easily made by a diamond cutting method [16–17]. This method provides a manufacture of Fresnel optics with refractive surfaces having minimum of optical defects due to the almost mirror-like quality of the working surfaces of the diamond cutting tools. The quality of formed images, in turn, is also very high.However, the refractive angles for sequential microprisms in the lens made but a diamond cutting can be changed only discretely, and only the discrete images can be formed. The value of above discreteness is determined by the width of the circular focusing zones, so the size of such zones should not be too large. It is proposed the method for simulating microrelief structures with the flat conical working faces for creating transforming Fresnel devices that form an almost uniformly illuminated light circle in the focal plane. The geometrical parameters of the relief for circular light beam concentrators are calculated. Some samples of such focusing microprismatic devices having been manufactured according to our simulation results were investigated experimentally. Fig.: 13. Refs: 8 titles. Розроблено метод моделювання мікрорельєфних структур для створення концентраторів світлових потоків із заданими граничними кутами заломлення променів. Розраховано геометричні параметри рельфу кругового концентратора світлових потоків, який формує у фокусі лінзи рівномірно освітлене коло. Експериментально досліджено виготовлені за результатами моделювання деякі зразки фокусуючих кільцевих пристроїв. Інститут проблем реєстрації інформації НАН України 2020-10-27 Article Article application/pdf http://drsp.ipri.kiev.ua/article/view/218803 10.35681/1560-9189.2020.22.3.218803 Data Recording, Storage & Processing; Vol. 22 No. 3 (2020); 3-13 Регистрация, хранение и обработка данных; Том 22 № 3 (2020); 3-13 Реєстрація, зберігання і обробка даних; Том 22 № 3 (2020); 3-13 1560-9189 uk http://drsp.ipri.kiev.ua/article/view/218803/220153 Авторське право (c) 2021 Реєстрація, зберігання і обробка даних |
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Data Recording, Storage & Processing |
| baseUrl_str |
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| datestamp_date |
2020-12-23T11:16:52Z |
| collection |
OJS |
| language |
Ukrainian |
| topic |
microrelief structure light beam homogenization transmission coefficient light intensity angular distribution simulation of focusing optics |
| spellingShingle |
microrelief structure light beam homogenization transmission coefficient light intensity angular distribution simulation of focusing optics Petrov, V. V. Antonov, E. E. Zenin, V. N. Manko, D. Yu. Shanoilo, S. M. Simulation and investigation of parameters for light beam concentrators |
| topic_facet |
мікрорельєфна структура гомогенізація світлових променів коефіцієнт пропускання кутовий розподіл інтенсивностей моделювання фокусуючої оптики microrelief structure light beam homogenization transmission coefficient light intensity angular distribution simulation of focusing optics |
| format |
Article |
| author |
Petrov, V. V. Antonov, E. E. Zenin, V. N. Manko, D. Yu. Shanoilo, S. M. |
| author_facet |
Petrov, V. V. Antonov, E. E. Zenin, V. N. Manko, D. Yu. Shanoilo, S. M. |
| author_sort |
Petrov, V. V. |
| title |
Simulation and investigation of parameters for light beam concentrators |
| title_short |
Simulation and investigation of parameters for light beam concentrators |
| title_full |
Simulation and investigation of parameters for light beam concentrators |
| title_fullStr |
Simulation and investigation of parameters for light beam concentrators |
| title_full_unstemmed |
Simulation and investigation of parameters for light beam concentrators |
| title_sort |
simulation and investigation of parameters for light beam concentrators |
| title_alt |
Моделювання та дослідження параметрів концентраторів світлових променів |
| description |
Now, in many fields of applied optics, the focusing Fresnel lenses are used. Mostly, such devices are created for tracking different objects; they are used also for forming the precise visual images, even with a changing focal distance, for solar concentrators, and for many other applications. Different methods have been proposed for designing such optics. The flat focusing Fresnel structures were manufactured by the photolithography methods or by the adjustable direct laser recording with photoresists. Such methods allow the formation of known stepped structures [10–15] but the optical quality of images obtained with such aspherical surfaces is not very good. The high-quality images are not practically realized due to the defects of created aspherical surfacesHowever, for some light signal processing systems it is necessary to convert a parallel circular light beam into a uniformly illuminated light circle instead of focusing. Such transforming Fresnel lenses are often used in the optical sensor systems for imaging and optoelectronic integration or in the monitoring devices for automatically adjusting the output signal from the four-quadrant photodetectors. These structures can be easily made by a diamond cutting method [16–17]. This method provides a manufacture of Fresnel optics with refractive surfaces having minimum of optical defects due to the almost mirror-like quality of the working surfaces of the diamond cutting tools. The quality of formed images, in turn, is also very high.However, the refractive angles for sequential microprisms in the lens made but a diamond cutting can be changed only discretely, and only the discrete images can be formed. The value of above discreteness is determined by the width of the circular focusing zones, so the size of such zones should not be too large. It is proposed the method for simulating microrelief structures with the flat conical working faces for creating transforming Fresnel devices that form an almost uniformly illuminated light circle in the focal plane. The geometrical parameters of the relief for circular light beam concentrators are calculated. Some samples of such focusing microprismatic devices having been manufactured according to our simulation results were investigated experimentally. Fig.: 13. Refs: 8 titles. |
| publisher |
Інститут проблем реєстрації інформації НАН України |
| publishDate |
2020 |
| url |
http://drsp.ipri.kiev.ua/article/view/218803 |
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