Patent ID: 11914151
Assignee: RICOH COMPANY, LTD.
Field: Optics (Instruments)
Classification: CPC G  A | IPC G

Claim 10:
11. A method of detecting inclination of a three-dimensional object, the method comprising:
irradiating an object with light from a light source including multiple light emitters;
detecting a position of the light reflected by the object using a detector having a photo-sensing surface, the position of the light being a position of the reflected light on the photo-sensing surface of the detector;
outputting data of a degree of inclination of the object obtained based on the position of the light on the photo-sensing surface of the detector and a prescribed parameter; and
changing the prescribed parameter based on the position of the light on the photo-sensing surface of the detector;
selecting one of the multiple light emitters to irradiate the object;
changing the selected one of the multiple light emitters to another one of the multiple light emitters when the light is not incident on the photo-sensing surface of the detector; and
repeating the changing of the selected one of the multiple light emitters until the light is incident on the photo-sensing surface of the detector.