LIGHT DETECTION DEVICE AND MANUFACTURING METHOD THEREOF

• Main Authors: IMAI YUSUKE, OGAWA AKIRA, ASAMI HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 28.06.2023
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

To provide a light detection device that ensures desired optical characteristics.SOLUTION: A light detection device comprises: a base 11 that defines reference directions Y and X which are orthogonal to each other; a light projection holder 61 that is positioned in the reference directions Y and X with respect to the base 11; a light projection unit 21 that has a light projector 22 which is held by the base 11 and a light projection lens system 26 which is held by the light projection holder 61 on a light projection optical axis POA which is orthogonal to the reference directions Y and X, and that guides a light projection beam from the light projector 22 by the light projection lens system 26; a first light projection shim 64 that is exchangeably interposed in a first light projection gap 63a which expands along the reference direction Y between the base 11 and the light projection holder 61; a second light projection shim 66 that is exchangeably interposed in a second light projection gap 63c which expands along a light projection intersection direction PD intersecting the reference directions Y and X between the base 11 and the light projection holder 61; and a light projection screw 68 that fixes the light projection holder 61 to the base 11 by screwing in the reference direction Y.SELECTED DRAWING: Figure 5 【課題】所期の光学特性を確保する光検出装置の提供。【解決手段】光検出装置は、互いに直交した基準方向Ｙ，Ｘを規定するベース１１と、ベース１１に対して基準方向Ｙ，Ｘに位置決めされる投光ホルダ６１と、ベース１１により保持される投光器２２並びに投光ホルダ６１により保持される投光レンズ系２６を基準方向Ｙ，Ｘに直交した投光光軸ＰＯＡ上に有し、投光器２２からの投光ビームを投光レンズ系２６により導光する投光ユニット２１と、ベース１１及び投光ホルダ６１間において基準方向Ｙに沿って広がる第一投光隙間６３ａに交換可能に介装される第一投光シム６４と、ベース１１及び投光ホルダ６１間において基準方向Ｙ，Ｘとは交差した投光交差方向ＰＤに沿って広がる第二投光隙間６３ｃに交換可能に介装される第二投光シム６６と、ベース１１に対して投光ホルダ６１を基準方向Ｙに沿った螺子止めにより固定する投光螺子６８とを備える。【選択図】図５