Patent ID: 9291816
Filing Date: 2016-03-22
CPC Classification: G02B,G09G,H04N

Claim Text:
1. A scanning mirror configured to be used with a photodetector and to reflects and scans a laser beam, the scanning mirror comprising: a mirror unit configured to reflect the laser beam; a supporter configured to cause the mirror unit to rotate and oscillate; an actuator which receives a breaking signal for causing the support to oscillate more than a breaking limit angle of the supporter as an input, and which is configured to drive the supporter; and an oscillation sensor configured to output a monitor signal indicating oscillation of the mirror unit, wherein the photodetector detects an intensity of the laser beam, and wherein, the breaking signal is input to the actuator if a value of the monitor signal falls out of a predetermined range of a normal operation and a value of the intensity detected by the photodetector fails to decrease, and the supporter is broken.