To reduce the astigmatism occurring in the light deflected by light deflection means.SOLUTION: An optical scanner that deflects the light coming from a light source and optically scans a scanned region 15 includes: light deflection means 13 for deflecting the light coming from the light source; and a tabular light transmission member 61 disposed on an optical path from the light source to the light deflection means. The tabular light transmission member is disposed in a state inclined to the optical axis L0 direction of the optical path so that the astigmatic difference due to the astigmatism occurring in the light deflected by the light deflection means becomes small.SELECTED DRAWING: Figure 16
【課題】光偏向手段によって偏向された光に生じている非点収差を低減することを課題とする。【解決手段】光源からの光を偏向して被走査領域15を光走査する光走査装置であって、前記光源からの光を偏向する光偏向手段13と、前記光源から前記光偏向手段へ至る光路上に配置される平板状光透過部材61とを有し、前記平板状光透過部材は、前記光偏向手段によって偏向された光に生じている非点収差による非点隔差が小さくなるように、前記光路の光軸L0方向に対して傾斜して配置されている。【選択図】図16
OPTICAL SCANNER, IMAGE PROJECTION DEVICE, MOVING BODY, AND MANUFACTURING METHOD OF OPTICAL SCANNER
光走査装置、画像投写装置、移動体、及び、光走査装置の製造方法
2019-09-26
Patent
Electronic Resource
Japanese
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B81B Mikrostrukturbauelemente oder -systeme, z.B. mikromechanische Bauelemente , MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES / G01S RADIO DIRECTION-FINDING , Funkpeilung / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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