To provide a projector-type measurement device capable of measuring with high accuracy, even with respect to a comparatively large measuring object.
The projector-type measurement device includes a mounting stand 10; an illumination section 16; an image acquiring section 21 for acquiring a measurement object 5 as an image optically with a prescribed magnification; an image control section 31 for outputting and controlling as a projected image data, based on obtained image data output from the image acquiring section 21; an optical conversion section 51 for modulating a light flux emitted from a light source by a light modulation element based on the projected image data, converting it into an optical image for projection and outputting it; a projection optical section 52 for projecting the optical image for projection with a prescribed magnification; a screen 40, to which the optical image for projection is projected to form a projection image, and on which a basic shape chart sheet 6 produced with a prescribed magnification is loaded; a displacement acquiring section 36 for acquiring displacement between the projection image and the basic shape chart sheet 6 as displacement data; and a displacement calculation section 37 for calculating a displacement based on the displacement data.
Osamu Suzawa
Kazuhiko Miyasaka