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    • 1. 发明申请
    • Optical Element, Holding Structure Therefor, And Optical Device
    • 光学元件,保持结构及光学元件
    • US20140233116A1
    • 2014-08-21
    • US14348860
    • 2012-09-10
    • Shinichiro HaraToshiyuki MajimaHiroshi TakagiAkihiko Matsumoto
    • Shinichiro HaraToshiyuki MajimaHiroshi TakagiAkihiko Matsumoto
    • G02B7/02
    • G02B7/02B41J2/471G02B26/125G11B7/1372G11B7/1374H04N1/113
    • An optical element has a first surface, a second surface on the opposite side of the first surface, an optical surface, and a protruding part. The protruding part is held in a prescribed position by being in contact with a holding member. The protruding part comprises a first protruding part and a second protruding part, The first protruding part comprises a first contact part that is a convex circular arc shape on at least one longitudinal plane and partly comes into contact with the holding member. The second protruding part comprises a second contact part that is a convex circular arc shape on at least one longitudinal plane and partly comes into contact with the holding member. A circular arc constitutes the first contact part and a circular arc that constitutes the second contact part are present in at least one cross-section that passes through a contact point between the first contact part and the holding member as well as a contact point between the second contact part and the holding member, and the center of the circular arc that constitutes the first contact part is aligned with the center of the circular arc that constitutes the second protruding part.
    • 光学元件具有第一表面,在第一表面的相对侧上的第二表面,光学表面和突出部分。 突起部通过与保持部件接触而保持在规定位置。 突出部包括第一突出部和第二突出部。第一突出部包括在至少一个纵向平面上呈凸圆弧形状并且部分地与保持部件接触的第一接触部。 第二突出部包括在至少一个纵向平面上是凸圆弧形状并且部分地与保持构件接触的第二接触部。 圆弧构成第一接触部分,并且构成第二接触部分的圆弧存在于穿过第一接触部分和保持部件之间的接触点的至少一个横截面以及接触点之间的接触点 第二接触部和保持构件,构成第一接触部的圆弧的中心与构成第二突出部的圆弧的中心对准。