Position sensitive detectors and distance measuring apparatus using them
AssigneeHamamatsu Photonics K.K.
InventorsTatsuo Takeshita, Masayuki Sakakibara
Life of this patent
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Abstract
In an apparatus a photosensitve surface of PSD is provided with a conductive trunk region extending in a base line direction and a plurality of conductive branch regions arranged in the base line direction and each connected to the trunk region, and each branch region makes an angle of 45° to the base line direction. An LED is arranged to be able to project slit light extending at the angle of 45° to the base line direction.
Claims22
A position sensitive detector in which electric currents outputted from two ends of a conductive trunk region vary according to a light incidence position on a photosensitive surface comprising a plurality of conductive branch regions extending from the trunk region, wherein the branch regions extend substantially obliquely relative to a position detection direction.
Dependencies are inferred from the claim text.