| 摘要 |
An optical position detecting apparatus for optically detecting a position of a target object in a detection region includes: a light source device for position detection that emits position detection light to the detection region and forms an intensity distribution of the position detection light in the detection region; a photodetector that receives the position detection light reflected on the target object; and a position detecting device that detects the position of the target object on the basis of a light reception result in the photodetector, wherein the light source device for position detection includes: a linear light source unit extending along an outer peripheral edge of the detection region and including a light emitting section that emits the position detection light to the detection region; and a light-source driving unit that drives the linear light source unit. |
