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1.发明公开
公开(公告)号：EP4318077A1
公开(公告)日：2024-02-07
申请号：EP22775144.3
申请日：2022-03-10
发明人： KANO Hiroto , SUGIYAMA Takayuki
摘要： A virtual image optical system 105 includes first and second optical elements 102 and 103 each configured to guide light from a display means 101, wherein the second optical element 103 guides the light from the display means 101 to a first pupil 112 to form a first virtual image 113, and the second optical element 103 simultaneously guides the light from the display means 101 to a second pupil 115 to form a second virtual image 116, and wherein decentering of the second optical element enables switching of positions of the first pupil and the second pupil to each other.
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公开(公告)号：EP3812822A1
公开(公告)日：2021-04-28
申请号：EP19815556.6
申请日：2019-05-29
发明人： KUDO Genichiro , KIMURA Kazumi , YOSHIDA Hiroki , KANO Hiroto
摘要： An optical system 10 includes a front group 11, a light-shielding member 4, and a rear group 12 that are arranged in this order in a direction from a side of an object toward a side of an image. The light-shielding member 4 has an opening elongated in a first direction. The front group 11 has aspherical surfaces 2 and 3, does not image the object at the opening in a first section parallel to the first direction, and forms an intermediate image of the object at the opening in a second section perpendicular to the first direction. The rear group 12 has a diffractive surface 5 that splits a light beam that passes through the opening into light beams at different wavelengths in the second section and focuses the light beams on different locations in the second section. Tilt angles of the aspherical surfaces 2 and 3 in the second section change in the first direction.
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公开(公告)号：EP3978982A1
公开(公告)日：2022-04-06
申请号：EP20813221.7
申请日：2020-05-18
发明人： YOSHIDA Hiroki , KIMURA Kazumi , KUDO Genichiro , KANO Hiroto
摘要： An optical system 10 includes a front group 11, a light shielding member 4, and a rear group 12 disposed in order from a side of an object to a side of an image. The light shielding member 4 has an opening elongated in a first direction. The rear group 12 has a diffraction surface 5 that disperses a light flux that has passed through the opening into a plurality of light fluxes of mutually different wavelengths in a first section perpendicular to the first direction, and an aspherical surface 6 disposed closer than the diffraction surface 5 to the side of the image. The aspherical surface 6 in the first section has a non-circular-arc shape. The grating spacing of the diffraction surface 5 in the first section changes from a center portion toward a peripheral portion to include an extremum value at the center portion. In the first section, the shape of at least one of a base surface of the diffraction surface 5 and an optical surface disposed closer than the diffraction surface 5 to the side of the object is asymmetric with respect to a normal line at a vertex thereof.
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公开(公告)号：EP3812821A1
公开(公告)日：2021-04-28
申请号：EP19815189.6
申请日：2019-05-31
发明人： KUDO Genichiro , KANO Hiroto , KIMURA Kazumi , YOSHIDA Hiroki
摘要： An optical system 10 includes a front group 11, a light-shielding member 4, and a rear group 12 that are arranged in this order in a direction from a side of an object toward a side of an image. The light-shielding member 4 has an opening elongated in a first direction. The front group 11 has an aspherical surface 3, does not image the object at the opening in a first section parallel to the first direction, and forms an intermediate image of the object at the opening in a second section perpendicular to the first direction. The rear group 12 has a diffractive surface 5 that splits a light beam that passes through the opening into light beams at different wavelengths in the second section and focuses the light beams on different locations in the second section. The curvature radius of the aspherical surface 3 in the second section at an on-axis position in the first direction differs from that at an outermost off-axis position in the first direction.
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