LASER ANNEALING DEVICE AND LASER ANNEALING METHOD

    公开(公告)号:US20240157471A1

    公开(公告)日:2024-05-16

    申请号:US18418291

    申请日:2024-01-21

    IPC分类号: B23K26/06 B23K26/352

    摘要: Laser annealing device (1) irradiates amorphous silicon film (W1) with laser beam (Li) to perform an annealing process. The laser annealing device includes: a plurality of laser oscillators (2i) that emit laser beams having mutually different wavelengths (λi); diffraction grating (3) that diffracts the laser beams emitted from the laser oscillators; and controller (6) that switches on and off states of emission of the laser beams by the laser oscillators. The laser oscillators are disposed at mutually different positions, and the laser beams emitted from the laser oscillators are diffracted on identical optical axis (A) by the diffraction grating. The controller can select at least one or more of the laser oscillators for turning on emission of the laser beams from among the plurality of laser oscillators in accordance with any crystal grain size of the amorphous silicon film.

    LASER DEVICE, AND LASER PROCESSING DEVICE IN WHICH SAME IS USED

    公开(公告)号:US20220334367A1

    公开(公告)日:2022-10-20

    申请号:US17810841

    申请日:2022-07-06

    摘要: Laser device (100) includes first and second laser oscillators (1), (2) that respectively emit first and second laser lights (LB1), (LB2) having first and second wavelengths, and first and second optical systems (10), (20). First optical system (10) is configured to couple first and second laser lights (LB1), (LB2) to transmit the first and second laser lights to second optical system (20), and second optical system (20) is configured to condense first laser light (LB1) at first condensing position (FP1) and second laser light (LB2) at second condensing position (FP2). A maximum angle formed by an optical axis and an outermost component of first laser light (LB1) emitted from first optical system (10) is different from a maximum angle formed by an optical axis and an outermost component of the second laser light (LB2).

    MEMBRANE ELECTRODE ASSEMBLY, FUEL CELL PROVIDED WITH SAME, AND METHOD FOR PRODUCING MEMBRANE ELECTRODE ASSEMBLY

    公开(公告)号:US20190181480A1

    公开(公告)日:2019-06-13

    申请号:US16274237

    申请日:2019-02-13

    摘要: Provided is a membrane electrode assembly capable of keeping contact resistance between a catalyst layer and a gas diffusion layer (GDL) low. The membrane electrode assembly includes an electrolyte membrane and a pair of electrode layers disposed to sandwich the electrolyte membrane. The pair of electrode layers includes a pair of catalyst layers disposed to sandwich the electrolyte membrane, and a pair of GDLs disposed on opposite sides of the electrolyte membrane on the respective pair of catalyst layers. Each of the pair of GDLs includes a plurality of GDL protrusions that protrude on a catalyst layer side from the GDL and enter in the catalyst layer, and a gas flow path formed on an opposite side of the catalyst layer. Each of the pair of catalyst layers has a plurality of catalyst layer recesses in contact with the respective plurality of GDL protrusions.

    IMAGING OPTICAL SYSTEM, IMAGING APPARATUS, AND CAMERA SYSTEM

    公开(公告)号:US20180299657A1

    公开(公告)日:2018-10-18

    申请号:US15936518

    申请日:2018-03-27

    IPC分类号: G02B15/177

    CPC分类号: G02B15/177

    摘要: An imaging optical system includes, in order from an object side to an image side, a first lens group having negative optical power, a second lens group having positive optical power, a third lens group having negative optical power, and a fourth lens group with negative optical power. A lens disposed closest to the object side in the second lens group has a concave surface directed toward the object side, and a lens disposed closest to the object side in the fourth lens group has positive optical power. Each distance between the lens groups changes when zooming from a wide-angle end to a telephoto end on photographing.