Patent ID: 9188432
Filing Date: 2015-11-17
Classification: B25J,G01B

Abstract:
1. A profile measuring apparatus which measures a profile of an object, comprising: a light source device configured to irradiate a projection light to the object, the projection light having a light amount changing with lapse of time in a first period and having a predetermined spatial distribution; an imaging element which is displaced at a different position from the light source and is configured to take an image of the object to which the projection light is irradiated; a second period setting section configured to set a second period including at least a part of the first period; and a profile information obtaining section which is communicatably connected with the imaging element so that the profile information obtaining section obtains an information with respect to the profile of the object based on an image data taken by the imaging element in the second period; wherein the second period setting section is configured to set the second period based on a light amount of a light which comes into the imaging element at the time of an imaging performed before the imaging performed in the second period, and based on a light amount change pattern of the projection light changing with lapse of time in the first period.