Design of Elliptic Reflective LED Surgical Shadowless Lamps Using Mathematical Optical Tracing Algorithms
المؤلفون المشاركون
Chen, Y. C.
Pan, C. T.
Hsieh, C. C.
Yang, Tsung-Lin
Lin, Po-Hsun
Lin, Po-Hung
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-09-29
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Traditional surgical shadowless halogen lamps are generally designed as projection type with many light bulbs, which can produce not only mercury pollution but also heat radiation that are serious problems to patient.
The study utilized Runge-Kutta methods and mathematical algorithms to design and optimize the freeform lens.
The LED (light-emitting diode) was adopted to replace the traditional halogen lamp.
A uniform lens was designed and fabricated based on the energy conservation.
At first, the light field of LED is concentrated through the freeform lens to improve the optical efficiency.
Second, the three-shell elliptic curves are applied to the reflective surgical shadowless lamps, where only few LED chips are needed.
Light rays emitting from different directions to the target plane can achieve the goal of shadowless.
In this study, the LED’s luminance flux is 1,895 lm.
The shadow dilution on the target plane is 54%.
Ec (central illuminance) is 114,900 lux, and the d50/d10 is 57% which is higher than the regulation by 7%, whereas the power consumption is only 20 W.
The energy of reflective surgical shadowless lamps can save more than 50%, compared with the traditional projective one.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Pan, C. T.& Chen, Y. C.& Yang, Tsung-Lin& Lin, Po-Hsun& Lin, Po-Hung& Hsieh, C. C.. 2014. Design of Elliptic Reflective LED Surgical Shadowless Lamps Using Mathematical Optical Tracing Algorithms. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1044355
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Pan, C. T.…[et al.]. Design of Elliptic Reflective LED Surgical Shadowless Lamps Using Mathematical Optical Tracing Algorithms. Mathematical Problems in Engineering No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1044355
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Pan, C. T.& Chen, Y. C.& Yang, Tsung-Lin& Lin, Po-Hsun& Lin, Po-Hung& Hsieh, C. C.. Design of Elliptic Reflective LED Surgical Shadowless Lamps Using Mathematical Optical Tracing Algorithms. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1044355
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1044355
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر