DETECTION APPARATUS, DETECTION PROGRAM, AND OPTICAL DEVICE

• Main Authors: IGUCHI DAISUKE, KONDO TAKASHI, SAKITA TOMOAKI
• Format: Patent
• Language: English; Japanese
• Published: 07.10.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

To suppress an influence of light other than direct light when detecting an object to be detected by detecting reflected light of light emitted to the object to be detected from a light-emitting element array including a plurality of light-emitting elements, as compared with a case where the light other than the direct light that is directly incident on and reflected by the object to be detected is not considered.SOLUTION: A detection apparatus comprises: a light-emitting element array including a plurality of light-emitting elements; a light-receiving element array including a plurality of light-receiving elements that receive reflected light of light emitted from the light-emitting element array to an object to be detected; a drive section that selectively drives the plurality of light-emitting element arrays; and a detection section that causes a light-emitting element other than the light-emitting elements which irradiate a light-receiving element with light other than direct light to emit light, and detects the object to be detected from received light amounts of light received by the light-receiving elements when there are the light-receiving elements which receive the light other than the direct light directly reflected by the light-receiving elements from the object to be detected.SELECTED DRAWING: Figure 1 【課題】複数の発光素子を備えた発光素子アレイから検出対象物に対して発光された光の反射光を検出することにより検出対象物を検出する場合に、検出対象物に直接入射して反射された直接光以外の光を考慮しない場合と比較して、直接光以外の光の影響を抑制することができる。【解決手段】検出装置は、複数の発光素子を備えた発光素子アレイと、前記発光素子アレイから検出対象物に対して発光された光の反射光を受光する複数の受光素子を備えた受光素子アレイと、複数の前記発光素子アレイを選択的に駆動する駆動部と、前記検出対象物から前記受光素子に直接反射された直接光以外の光を受光した受光素子がある場合、その受光素子に直接光以外の光を照射した発光素子以外の発光素子を発光させて受光素子が受光した光の受光量から、前記検出対象物を検出する検出部と、を備える。【選択図】図１