DISTANCE MEASURING DEVICE

• Main Author: FURUYAMA MASAKI
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2018
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TESTING

To provide a distance measuring device improved in reception intensity.SOLUTION: The distance measuring device comprises: a light-emitting element 12 which emits laser light; a first deflection element 13 which has a plurality of first phase shifters, and deflects the laser light emitted by the light-emitting element 12; a second deflection element 15 which has a plurality of second phase shifters, and deflects the laser light reflected by an object; and a photodetector 16 which detects the laser light transmitted through the second deflection element 15. A first pitch of a first phase shifter is different from a second pitch of a second phase shifter.SELECTED DRAWING: Figure 4 【課題】 受信強度を向上させることが可能な距離測定装置を提供する。【解決手段】 距離測定装置は、レーザ光を発光する発光素子１２と、複数の第１フェーズシフタを有し、発光素子１２により発光されたレーザ光を屈折させる第１偏向素子１３と、複数の第２フェーズシフタを有し、対象物により反射されたレーザ光を屈折させる第２偏向素子１５と、第２偏向素子１５を透過したレーザ光を検知する受光素子１６とを含む。第１フェーズシフタの第１ピッチは、第２フェーズシフタの第２ピッチと異なる。【選択図】 図４