EMITTER, AND DRIP IRRIGATION TUBE PROVIDED WITH SAME

    公开(公告)号:US20200084981A1

    公开(公告)日:2020-03-19

    申请号:US16619760

    申请日:2018-05-28

    Abstract: The present invention aims to provide an emitter and a drip irrigation tube that can suppress the variations in the discharge amount of the liquid in the drip irrigation tube. The emitter (120) of the present invention is an emitter for regulating discharge of irrigation liquid. The emitter (120) includes an intake portion for taking in the liquid in the tube (110); a regulating unit that regulates a discharge amount of the liquid; a discharge portion for discharging the liquid via a discharge port (112) of the tube (110); and a flow path communicating the intake portion and the regulating unit. The regulating unit includes a recess and a film, the film is fixed in a state of covering an inner space of the recess, a region of the film covering the inner space of the recess is a diaphragm portion, the recess has a through hole communicating with the discharge portion and a plurality of slits communicating with the through hole, and an edge portion forming an upper surface-side opening of the through hole, excluding the plurality of slits, is a valve seat portion. When the diaphragm portion of the film comes into contact with the valve seat portion, the film and the slits form communication ports to the through hole, and each slit serves as a flow path to the through hole. The emitter (120) satisfies condition (1):Condition (1): Assuming a cross-sectional area of the communication port formed by the film and the slit required when the emitter has one slit to be 1, a cross-sectional area of a communication port to the through hole formed by the film and each slit is less than 1.

    Emission device, surface light source device, display and light flux control member

    公开(公告)号:USRE47891E1

    公开(公告)日:2020-03-03

    申请号:US15161885

    申请日:2016-05-23

    Abstract: A display has a member irradiated by a surface light source device comprising a light diffusion member and emission device. The emission device is provided with a light flux control member having a recess and light control emission face which is configurated so as to satisfy Conditions 1 and 2 in a range at least covering a half-intensity-angular-range. Light emitting element(s) may be sealed. Condition 1 is that relation θ5/θ1>1 is satisfied except for light emitted from a light emitting element toward within an angular-neighbourhood of a standard optical axis of the emission device, and Condition 2 is that value of θ5/θ1 decreases gradually according to increasing of θ1, where θ1 is an emission angle of any light at being emitted from the light emitting element, and θ5 is an emission angle of that light of θ1 at then being emitted from the light control emission face of the light flux control member.

    LIGHT FLUX CONTROL MEMBER, LIGHT EMITTING DEVICE, AND A SURFACE LIGHT SOURCE DEVICE

    公开(公告)号:US20200050057A1

    公开(公告)日:2020-02-13

    申请号:US16495996

    申请日:2018-03-20

    Inventor: Kyouhei YAMADA

    Abstract: A light flux control member has: a rear surface extending in the Y-axis direction; and a first incident plane, a second incident plane, and a third incident plane disposed on the rear surface side, said third incident plane reflecting light incident to the first incident plane. The light flux control member further has: a first reflecting plane disposed on the front side and reflecting, to one direction in the Y-axis direction, light incident to the first incident plane, light incident to the first incident plane and reflected on the third incident plane, and light incident to the third incident plane; and a second reflecting plane for reflecting light incident to the second incident plane to the other direction in the Y-axis direction. The light flux control member still further has two exit planes disposed sandwiching the first reflecting plane and the second reflecting plane and facing each other.

    LUMINOUS FLUX CONTROL MEMBER, LIGHT-EMITTING DEVICE, AND METHOD FOR PRODUCING LIGHT-EMITTING DEVICE

    公开(公告)号:US20200041843A1

    公开(公告)日:2020-02-06

    申请号:US16499065

    申请日:2018-03-27

    Abstract: The present invention provides a lens (i.e., luminous flux control member) for an optical element of a backlight, capable of easily aligning the orientation in the plane direction. The luminous flux control member according to the present invention includes a lens main body and legs. The lens main body includes a light-entering area for light emitted from a light-emitting element to enter on the lower surface side and a light-emitting area for emitting the light entered from the light-entering area to the outside on the upper surface side. The legs are legs for mounting the luminous flux control member on a substrate on which the light-emitting element is mounted and are disposed on the lower surface of the lens main body so as to project downward. The luminous flux control member satisfies the following condition 1 or 2: (Condition 1) at least one of the legs is accommodated in one of two grooves having different widths, and all of the other legs are accommodated in the other groove only when the lens main body is oriented in one predetermined direction or an opposite direction thereto; and (Condition 2) the lens main body or all of the legs are accommodated in one groove only when the lens main body is oriented in one predetermined direction or an opposite direction thereto.

    INJECTION-MOLDED IMPELLER
    75.
    发明申请

    公开(公告)号:US20200016800A1

    公开(公告)日:2020-01-16

    申请号:US16335454

    申请日:2017-09-12

    Inventor: Tetsuo YAMAGUCHI

    Abstract: An injection-molded impeller includes a center shaft portion and a plurality of vanes. The plurality of vanes are formed at a peripheral area of the center shaft portion at regular intervals. The injection-molded impeller is rotated around an axial center CL of the center shaft portion to flow out a fluid flowed in between the adjacent vanes from a direction along the axial center CL of the center shaft portion toward a radially outer side. The vanes include non-deflecting shape portions and arc-shaped flow deflecting portions. The non-deflecting shape portions linearly extend from the center shaft portion along a radial direction. The flow deflecting portions extend from the non-deflecting shape portions to radially outward ends. The vanes are formed in a spiral pattern from one end side to another end side along the axial center CL of the center shaft portion.

    LIGHT-EMITTING DEVICE, PLANAR LIGHT SOURCE DEVICE AND DISPLAY DEVICE

    公开(公告)号:US20200012153A1

    公开(公告)日:2020-01-09

    申请号:US16488951

    申请日:2018-02-26

    Inventor: Takuro MOMOI

    Abstract: This light-emitting device has a light-emitting element and a light flux control member. The light flux control member has an entry surface, a light control surface, a back surface, and a ring-shaped groove. The light control surface includes a first transmission portion, a total reflection portion, and a second transmission portion. The ring-shaped groove includes a first inner surface and a second inner surface. A second light beam, which is a light beam that is part of the light beam emitted from the light-emitting center of the light-emitting element, enters the interior of the light flux control member at the entry surface, is totally reflected at the total reflection portion, then internally reflected at the second inner surface, and exits from the second transmission portion to the exterior of the light flux control member.

    MARKER MOUNTING UNIT
    78.
    发明申请

    公开(公告)号:US20190337258A1

    公开(公告)日:2019-11-07

    申请号:US16473993

    申请日:2018-01-12

    Abstract: The present invention provides a marker mounting unit for mounting, for example, a marker such as a RAS marker, which can accurately detect the detection reference portion. A marker mounting unit (1) according to the present invention includes an upper substrate (10) and a lower substrate (11). The marker mounting unit (1) is a laminate in which the upper substrate (10) is stacked on the lower substrate (11). The upper substrate (10) has a through hole (102). The lower substrate (11) has a bump (112) serving as a detection reference portion at a position corresponding to the through hole (102) of the upper substrate (10). The bump (112) of the lower substrate (11) is inserted into the through hole (102) of the upper substrate (10). In the laminate, an upper surface (112a) of the bump (112) of the lower substrate (11) is positioned at the same height as or higher than an upper surface of the upper substrate (10).

    MARKER AND MARKER SET
    80.
    发明申请

    公开(公告)号:US20190302319A1

    公开(公告)日:2019-10-03

    申请号:US16346443

    申请日:2017-10-19

    Inventor: Tomohiro SAITO

    Abstract: The present invention provides a marker that allows a viewing direction to be determined from a detected image. A marker (100) according to the present invention includes: a lens main body (110) including a plurality of lens units (121) and a plurality of non-lens units (122). The plurality of lens units (121) and the plurality of non-lens units (122) are arranged alternately in a planar direction. Each of the lens units (121) includes, on one surface side of the lens main body (110), a light-condensing convex-shaped lens portion (121a) provided along an arrangement direction in which the lens units (121) and the non-lens units (122) are arranged. Each of the non-lens units (122) includes, on the one surface side of the lens main body (110), a non-light-condensing non-lens portion (122a). The lens main body (110) includes, on the other surface (140) side of the lens main body (110), a plurality of detectable portions (141) that can be detected from the one surface side.

Patent Agency Ranking