OPTICAL SCANNER

• Main Authors: NISHINO TOSHIHARU, FURUYAMA MASAKI
• Format: Patent
• Language: English; Japanese
• Published: 02.04.2020
• 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 capable of improving reception intensity.SOLUTION: An optical scanner comprises: a light source 12 including a light-emitting element emitting a laser beam; a deflector 14 arranged on a direction of travel of the laser beam emitted from the light source 12, and capable of deflecting the incident laser beam in a direction substantially parallel to the first direction for emission; a first optical member 16 reflecting the laser beam emitted from the deflector 14 at an angle β greater than an emission angle θo of the deflector 14; and a second optical member 18 reflecting the laser beam reflected by the first optical member 16 such that a reflection angle in a direction substantially parallel to the first direction is a reflection angle β of the first optical member and a predetermined reflection angle φ in a direction substantially parallel to a second direction different from the first direction.SELECTED DRAWING: Figure 1 【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】 実施形態による光走査装置は、レーザ光を発光する発光素子を備えた光源１２と、光源１２から出射されたレーザ光の進行方向に配置され、入射したレーザ光を第１方向と略平行な方向に偏向して出射可能な偏向装置１４と、偏向装置１４から出射されたレーザ光を、偏向装置１４の出射角θｏよりも大きな角度βで反射する第１光学部材１６と、第１方向と略平行な方向における反射角が第１光学部材での反射角βであって、第１方向と異なる第２方向と略平行な方向において所定の反射角φとなるように、第１光学部材１６にて反射されたレーザ光を反射する第２光学部材１８と、を具備する。【選択図】 図１