| 摘要 |
<p>As a walking assistive device for a walk of the blind, the present invention relates to an optical system for a photoelectronic stick designed in a Cassegrain type, and the photoelectronic stick using the optical system. More specifically, the photoelectronic stick measures a distance to a neighboring object by applying Lidar (laser radar), and comprises a laser generating portion; a laser receiving portion; an MCU; and a sound signal outputting portion. A laser discharged from the laser generating portion is a near-infrared radiation in a wavelength range of 1,550 nm.</p> |
