Long Focal Length With Blind Ultraviolet And Blind Ultraviolet Bifocal Lenses

Using ultraviolet imaging techniques to detect the corona discharge of the high voltage electrical equipment,its purpose is to prevent corona discharge of electrical equipment insulation accidents,ensure the normal order of the power of the transportation.Therefore,real-time detection of corona discharge,the power of the transportation has the vital significance.Day of corona detection blind ultraviolet systems have low false alarm rate,high efficiency of a reliable and effective means of detection of corona discharge.Thus,the paper designed a fixed focus and a zoom with blind ultraviolet lenses system.This paper aim at the corona detection imaging technology to carry out the research.Firstly,introduces the developing situation of the corona detection technology at home and abroad.Then tells the define of corona discharge principle,corona side of the spectrum and ultraviolet transmission characteristics in the atmosphere.Then tells the the concept of a zoom system,several important principles in the process of zoom,zoom system are classified at the same time,focus on the mechanical zoom some equation.Secondly according to the above theory,using the ZEMAX optical design software design for a fixed focus ultraviolet lens and a zoom ultraviolet lens,and then analyze the image quality evaluation.Finally,analyze the design of two lens tolerance.