Study on Light Source of Photoelectric Detection Target with Wide Field of View

In order to realize indooor measurment with a wide field of view,a line light source was designed by making use of the characteristics of indoor photoelectric detection target.Its detection performance,the function of light source and the relation of slit and screen thickness were analyzed.The infrared LED with the wavelength of 680nm was selected to design the arc line light source and the design principles were analyzed.It is proved that the line light source with a high stablility can improve the detection sensitivity of photoelectric detection target,the detection distance is 2000 multiple of the projectile,the detection field of view is 82°,and its power consumption is small.