LIGHT SOURCE DEVICE AND PROJECTOR
    1.
    发明公开

    公开(公告)号:EP4432653A1

    公开(公告)日:2024-09-18

    申请号:EP24163851.9

    申请日:2024-03-15

    发明人: YONEYAMA, Takuo

    IPC分类号: H04N9/31 G02B26/10

    摘要: A light source device according to the present disclosure includes a first light emitter for emitting a first light beam, a first optical part having a first plane of incidence which the first light beam enters, and a first exit surface from which the first light beam is emitted, and a second optical part having a second plane of incidence which the first light beam emitted from the first optical part enters, and a second exit surface from which the first light beam is emitted. The first optical part rotates centering on a first rotational axis a. The second optical part rotates centering on a second rotational axis. The first plane of incidence and the first exit surface are parallel to each other, and the second plane of incidence and the second exit surface are parallel to each other.

    METHOD FOR ADJUSTING SWINGING OF GALVANOMETER AND RELATED DEVICES

    公开(公告)号:EP4375003A1

    公开(公告)日:2024-05-29

    申请号:EP23169928.1

    申请日:2023-04-25

    IPC分类号: B23K26/03 B23K26/04 G02B26/10

    摘要: A method for adjusting swinging of a galvanometer is provided in implementations of the disclosure. The method includes the following operations. Guide a processing laser to a laser processing surface via a first galvanometer, and establish a first correspondence between a reference coordinate system of the laser processing surface and coordinate-ranges of swinging angles of the first galvanometer. Perform region division on the laser processing surface in the reference coordinate system to obtain P calibrating selected-regions of the laser processing surface. Determine coordinate of a swinging angle of the first galvanometer corresponding to one of target points in Q calibrating selected-regions in the P calibrating selected-regions according to the first correspondence, to obtain coordinates of Q swinging angles of the first galvanometer. Establish a second correspondence between the reference coordinate system of the laser processing surface and coordinate-ranges of swinging angles of a second galvanometer.

    SCANNING-TYPE REDUCTION PROJECTION OPTICAL SYSTEM AND LASER MACHINING APPARATUS USING SAME

    公开(公告)号:EP4375002A1

    公开(公告)日:2024-05-29

    申请号:EP21950909.8

    申请日:2021-07-20

    IPC分类号: B23K26/00

    摘要: In the present invention, micro devices on a donor substrate are subjected to LIFT onto an opposed receptor substrate with high position accuracy by a scanning reduced projection optical system that forms an image of traverse multimode pulsed laser light with a minute area size onto the donor substrate through a lens array-type zoom homogenizer, an array mask 10, a scanning mirror 4, a photomask 6, and a telecentric projection lens 8. An implementation method thereof includes steps of inspection for acquiring position information, LIFT area division, irradiation position selection, transfer, and stage moving. This configuration can provide a scanning reduced projection optical system capable of scanning a minute irradiation area having a uniform and invariable energy distribution over a wide range with high accuracy and high speed while compensating for scanner accuracy deficiencies, without using expensive fθ lenses or telecentric reduced projection lenses with large apertures, as well as a LIFT apparatus for mounting or retransfer equipped with the scanning reduced projection optical system at low costs, and an implementation method thereof.

    LASER SCANNING SYSTEM, LASER SCANNING METHOD, MOVING LASER SCANNING SYSTEM, AND PROGRAM

    公开(公告)号:EP3407089A1

    公开(公告)日:2018-11-28

    申请号:EP17744001.3

    申请日:2017-01-16

    申请人: Meiji University

    发明人: KURODA, Yoji

    IPC分类号: G01S17/89 G01S7/481 G02B26/10

    CPC分类号: G01S7/481 G01S17/89 G02B26/10

    摘要: A laser scanning system of the present invention includes a first rotation mechanism configured to perform a rotation in a predetermined first rotation axis and at a rotation speed around the first rotation axis as a rotation center; a first rotation speed control unit configured to control the rotation speed of the rotation in the first rotation axis by the first rotation mechanism, and a laser scanner device disposed on the first rotation mechanism, to be rotated together with and by the first rotation mechanism, and the laser scanner device including a laser distance measuring unit configured to emit a leaser and to measure a distance to a detection target, wherein the first rotation speed control unit is configured to make a control to the rotation speed of the rotation in the first rotation axis in a detection rotation angle range corresponding to an area in which the detection target is present and another control to the rotation speed of the rotation in the first rotation axis in a non-detection rotation angle range corresponding to another area in which the detection target is not present.

    ROTATION DEVICE, OPTICAL SCANNING DEVICE, AND IMAGE DISPLAY DEVICE

    公开(公告)号:EP3396844A1

    公开(公告)日:2018-10-31

    申请号:EP16878583.0

    申请日:2016-12-16

    摘要: A rotating apparatus includes a folded back elastically deformable portion including a first piezoelectric element 20 for deforming a first elastically deformable portion 12 and a second piezoelectric element 21 for deforming a second elastically deformable portion 13, and the rotating apparatus rotates a movable portion around a predetermined rotation axis, by respectively applying a first driving voltage signal Va and a second driving voltage signal Vb that are different from each other to the first piezoelectric element and the second piezoelectric element, to deform the first elastically deformable portion and the second elastically deformable portion; wherein a connection position 113 and a connection position 116 have a relationship of being relatively the same positions or a relationship of being symmetrical positions across all of the folded back structures, the connection position 113 being a position where a signal line 111 of the first driving voltage signal Va and the first piezoelectric element are connected in the first piezoelectric element, and the connection position 116 being a position where a signal line 115 of the second driving voltage signal Vb and the second piezoelectric element are connected in the second piezoelectric element.

    REFLECTING DEVICE
    8.
    发明公开
    REFLECTING DEVICE 审中-公开

    公开(公告)号:EP3373030A1

    公开(公告)日:2018-09-12

    申请号:EP18159287.4

    申请日:2018-02-28

    发明人: TANAKA, Fuminori

    IPC分类号: G01S7/481 G02B26/10 G02B26/08

    摘要: Provided a reflecting device in which a mirror area is large, wide angle scanning is possible, and a size thereof is reduced, and particularly a downsized reflecting device that has a suitable specification as vehicle-mounted LiDAR. The reflecting device (1) includes an oscillation part (40), and the oscillation part (40) includes a mirror part (10) supported on a support frame (20), and a hinge part (30) engaging the mirror part (10) and the support frame (20). The mirror part (10) oscillates with respect to the support frame (20), and the hinge part (30) has a tensile strength of 1500 MPa or higher. A mass M of the mirror part (10) and a resonance frequency f 0 of the oscillation part (40) satisfy a relational expression (1) below, 0.49 * f 0 + 6.23 ≤ M ≤ 68.6 * f 0 + 46.8