公开(公告)号：US20180245770A1

公开(公告)日：2018-08-30

申请号：US15757442

申请日：2016-08-30

Applicant: Enplas Corporation

Inventor： Toshihiko MOCHIDA

IPC: F21V5/04 ,  F21V3/02 ,  F21V13/04

CPC classification number: F21V5/045 ,  F21V3/02 ,  F21V13/04 ,  F21Y2105/16 ,  F21Y2115/10 ,  G02B19/0028 ,  G02B19/0061 ,  G02F1/133603 ,  G02F1/133606 ,  G02F1/133611 ,  G02F2001/133607 ,  H01L33/58

Abstract: The purpose of the present invention is to provide a light flux control member capable of suppressing brightness variation due to light refracted by an inclined surface. The light flux control member comprises: an entry surface which is an inner surface of a recess portion formed on a back side; an emission surface which is formed on a front side; and an annular groove portion which is formed on the back side and outside the entry surface. The annular groove portion includes an outside inclined surface and an inside surface. The inside surface includes a plurality of retroreflective portions.

公开(公告)号：US20210397048A1

公开(公告)日：2021-12-23

申请号：US16644512

申请日：2018-09-05

Applicant: Enplas Corporation

Inventor： Toshihiko MOCHIDA ,  Hiroaki OKUYAMA

IPC: G02F1/13357 ,  G02B3/04

Abstract: This light emitting device includes a light emitting element and a light flux controlling member. The light flux controlling member includes an incident surface, an emission surface, a back surface, a protruding portion and a scattering portion. In a cross section including a central axis, an angle formed by two beams, which are emitted from the light emitting device and have a maximum luminous intensity, is 150° or more. In a cross section including a central axis, predetermined light is made incident at an incident angle of 60° and an average angle, which is formed by, among the light reflected by the scattering portion, a light ray having a maximum light amount and a light ray having a light amount of 50% of the maximum light amount, is 5° or more.

公开(公告)号：US20210364859A1

公开(公告)日：2021-11-25

申请号：US16479644

申请日：2018-01-12

Applicant: ENPLAS CORPORATION

Inventor： Toshihiko MOCHIDA ,  Hiroshi TAKATORI ,  Takao MIYOSHI

IPC: G02F1/1335 ,  G02B13/18 ,  G02F1/13357

Abstract: A luminous flux control member has: an incident surface, an emission surface; a back surface; and a plurality of recessed or projecting first quadrangular pyramid parts placed in grid form on at least a portion of the back surface. The first quadrangular pyramid part includes: a first inclined plane that is inclined so as to face the back side as separation increases from the central axis; a second inclined plane that is inclined so as to face the front side as separation increases from the central axis; and a connecting part that connects the first inclined plane and the second inclined plane. In a cross section including the central axis and the center of the connecting part, the first inclined plane is larger than the second inclined plane.

公开(公告)号：US20200348566A1

公开(公告)日：2020-11-05

申请号：US16760048

申请日：2018-10-23

Applicant: Enplas Corporation

Inventor： Toshihiko MOCHIDA

IPC: G02F1/13357

Abstract: This light bundle control member comprises an incident surface, an exit surface, a plurality of grooves, and a plurality of ridges. At least one of the incident surface and the exit surface has an elliptical cross section perpendicular to a central axis of the light bundle control member. The grooves are arranged on the back side of the light bundle control member successively from the central axis side toward the outer edge side of the light bundle control member. Each of the grooves includes a step surface positioned on the central axis side, and an inclined surface positioned on the outer edge side. The ridges are respectively arranged on the inclined surface of each of the grooves. Each of the ridges includes a first reflecting surface, a second reflecting surface, and a ridge line arranged between the first reflecting surface and the second reflecting surface.

公开(公告)号：US20200124249A1

公开(公告)日：2020-04-23

申请号：US16629510

申请日：2018-07-10

Applicant: ENPLAS CORPORATION

Inventor： Toshihiko MOCHIDA

IPC: F21V5/04 ,  G02B3/02 ,  F21S41/25

Abstract: The present invention provides a lens for a light emitting element (a luminous flux control member) that can ensure sufficient spread of light even with a smaller number of light emitting elements. The luminous flux control member (10) of the present invention includes: a dome shaped aspherical lens body (11). The lens body (11) includes: a base surface (13); and a dome shaped curved surface (12). The base surface (13) has a base concave portion (131) centered on a central axis, a concave surface of the base concave portion (131) has a light incident region for incident light emitted from a light emitting element, the dome shaped curved surface (12) has a light emitting region for emitting incident light from the light incident region to an outside, the light emitting region of the curved surface (12) has an elliptical shape as viewed from a central axis direction centered on the central axis, in which a length (X) of an X axis orthogonal to the central axis and a length (Y) of a Y axis orthogonal to the central axis and the X axis satisfy X

公开(公告)号：US20190024855A1

公开(公告)日：2019-01-24

申请号：US15757454

申请日：2016-08-29

Applicant: Enplas Corporation

Inventor： Toshihiko MOCHIDA ,  Hiroshi TAKATORI

IPC: F21S2/00 ,  F21V5/04 ,  G02B3/00 ,  H01L33/60

Abstract: This luminous flux control member has: a plane of incidence having a first incidence plane and a second incidence plane; an emission plane; and a second concavity. The luminous flux control member satisfies the expression h1