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    OPTICAL SYSTEM, IMAGE PROJECTION DEVICE, AND IMAGING DEVICE
    3.
    发明公开
    OPTICAL SYSTEM, IMAGE PROJECTION DEVICE, AND IMAGING DEVICE 审中-公开

    公开(公告)号：EP4249981A1

    公开(公告)日：2023-09-27

    申请号：EP21894466.8

    申请日：2021-11-02

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： UCHIDA, Tsuneo ,  IMAOKA, Takuya ,  YAMADA, Katsu ,  KUZUHARA, Satoshi

    IPC分类号： G02B17/08 ,  G02B13/16 ,  G02B13/18 ,  G03B21/00 ,  G03B21/28

    摘要： The optical system (1) includes a first sub-optical system including an aperture stop (ST) and a second sub-optical system including a prism (PM). The prism (PM) has a first transmission surface (T1) located on a reduction side, a second transmission surface (T2) located on a magnification side, and at least one reflection surface (R1, R2) between the first transmission surface (T1) and the second transmission surface (T2). The first sub-optical system includes a plurality of rotationally symmetric lens elements (L1-L28). When the axis passing through at least two centers of the rotationally symmetric lens element (L1-L28) is defined as a reference optical axis (A), at least one optical surface of the prism (PM) is formed such that in a plane perpendicular to the reference optical axis (A), a maximum angle θmax and a minimum angle θmin in terms of an angle at which a principal ray of light rays having an image-forming relationship on a concentric circle centered on an intersection of the reference optical axis (A) and a reduction conjugate point of the rectangular region intersects a normal line of the plane at a position where the principal ray is made incident on the optical surface satisfy the following Expression (1): 45° > |θmax|- |θmin|> 0.014°.

    APPARATUS AND METHODE FOR A VISION SYSTEM HAVING A TRANSPARENT DISPLAY AND A DIFFRACTIVE, PLANAR LENS
    4.
    发明公开
    APPARATUS AND METHODE FOR A VISION SYSTEM HAVING A TRANSPARENT DISPLAY AND A DIFFRACTIVE, PLANAR LENS 审中-公开

    公开(公告)号：EP4174531A1

    公开(公告)日：2023-05-03

    申请号：EP22203213.8

    申请日：2022-10-24

    申请人： L3Harris Technologies, Inc.

    发明人： Burnsed, Jon D. ,  Becker, Jacob J.

    IPC分类号： G02B1/00 ,  G02B5/00 ,  G02B5/18 ,  G02B13/16

    摘要： An apparatus and method are provided for a night vision system including a transparent overlay display that transmit direct-view light representing an intensified image and emits display light representing a display image. The night vision system includes an intensifier with a flat exit face, an overlay display that is flat/planar, and planar, diffractive lens. The direct-view light and the display light exit the overlay display with the same phase curvature (e.g., a flat phase curvature). The planar, diffractive lens induces a spherical phase curvature on the light exiting the overlay display. The phase curvature induced by the planar, diffractive lens matches the phase curvature of a legacy intensifier in which the final element is fiberoptic inverting element with a curved exit face. Accordingly, the combination of the intensifier, overlay display, and planar, diffractive lens can replace the legacy intensifier while maintaining the design specifications of the night vision system.

    OPTICAL SYSTEM, IMAGE PROJECTION DEVICE, AND IMAGING DEVICE
    7.
    发明公开
    OPTICAL SYSTEM, IMAGE PROJECTION DEVICE, AND IMAGING DEVICE 审中-公开

    公开(公告)号：EP3916461A1

    公开(公告)日：2021-12-01

    申请号：EP19912101.3

    申请日：2019-11-07

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： ZHAO, Qinghua ,  IMAOKA, Takuya

    IPC分类号： G02B15/167 ,  G02B13/16 ,  G02B13/18 ,  G02B15/16 ,  G03B21/14

    摘要： The present disclosure is directed to an optical system internally having an intermediate imaging position MI that is conjugated to a magnification conjugate point on a magnification side and a reduction conjugate point on a reduction side, respectively, the optical system including: a magnification optical system Op having A (A is an integer of three or more) pieces of lens elements, positioned on the magnification side with respect to the intermediate imaging position MI; and a relay optical system Ol having B (B is an integer of two or more) pieces of lens elements, positioned on the reduction side with respect to the intermediate imaging position MI. A first lens group G1 composed of β pieces (β is one or more and less than B) of lens elements positioned first from the magnification side in the relay optical system Ol has a negative power.

    OPTOELEKTRONISCHER SENSOR
    8.
    发明公开
    OPTOELEKTRONISCHER SENSOR 审中-公开

    公开(公告)号：EP3907547A1

    公开(公告)日：2021-11-10

    申请号：EP21168066.5

    申请日：2021-04-13

    申请人： SICK AG

    发明人： Nübling, Ralf Ulrich

    IPC分类号： G02B13/00 ,  G01C3/00 ,  G02B13/16 ,  G02B13/18 ,  G02B5/20

    摘要： Optoelektronischer Sensor (1) mit einem Empfangselement (2) und mindestens einer Empfangslinse (3) und einem optischen Filterelement (4), wobei das Filterelement (2) spaltfrei zwischen einer ersten Teillinse (5) und einer zweiten Teillinse (6) angeordnet ist, wobei die Teillinsen (5, 6) eine der Empfangslinsen (3) oder die Empfangslinse (3) bilden, wobei das optische Filterelement (4) mindestens eine konvexe oder konkave Form aufweist und empfangene Lichtstrahlen das Filterelement (2) an jeder Eintrittsstelle in gleichem Winkel durchlaufen oder ein optoelektronischer Sensor (1) mit einem Empfangselement (2) und einer Empfangslinse (3) und einem optischen Filterelement (4), welches zwischen dem Empfangselement (2) und der Empfangslinse (3) angeordnet ist, wobei das optische Filterelement (4) mindestens eine gekrümmte Freiformoberfläche aufweist, so dass die empfangenen Lichtstrahlen das Filterelement (4) an der Oberfläche (9) des optischen Filterelements (4) an jeder Eintrittsstelle in gleichem Winkel durchlaufen.

    LENS HAVING TWO LENS BARRELS, LENS MODULE, AND ASSEMBLING METHOD
    9.
    发明公开
    LENS HAVING TWO LENS BARRELS, LENS MODULE, AND ASSEMBLING METHOD 审中-公开

    公开(公告)号：EP3865924A1

    公开(公告)日：2021-08-18

    申请号：EP20848931.0

    申请日：2020-08-18

    申请人： JIANGXI LIANYI OPTICS CO., LTD.

    发明人： DENG, Binquan ,  XIONG, Xinyu

    IPC分类号： G02B7/02 ,  G02B13/16 ,  G03B19/02

    摘要： The disclosure provides a double barrels lens, a lens module and an assembling method therefor. The double barrels lens includes a first barrel and a second barrel. The first barrel comprises a first end, a second end and a lens group received in the first barrel, and external screw threads are provided on an outer surface of the second end. The second barrel includes a first end surface, a second end surface and an inner surface, internal screw threads are provided on the inner surface. The internal screw threads of the second barrel are engaged with the external screw threads of the first barrel. A distance H between an optical center of the lens group and the second end surface of the second barrel, a focal length f of the lens group, and a correction coefficient α meet the expression: H = f + α, the correction coefficient is configured to correct a distance between the second end surface and an image sensor assembly, thereby enabling the focus of the lens group to be coincided with the center of an image sensor included in the image sensor assembly. The double barrels lens of the disclosure has a simple structure and a small EFL tolerance, and can accurately and quickly realize the coincidence of the focus of the lens with the center of an image sensor, thereby improving product yield after assembling with an image sensor assembly.