Patents by Inventor Masafumi Danno
Masafumi Danno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11966064Abstract: A light guide plate according to one or more embodiments may include an incident surface that receives light, and an optical path changer on a back surface perpendicular to the incident surface. The optical path changer may reflect light to be emitted through an emission surface parallel to the back surface. The light emitted through the emission surface may form a formed image including a plane image representing a surface. The plane image may include a near imaging portion and a distant imaging portion. The plane image may have two ends included in the near imaging portion in a cross section perpendicular to the back surface and an optical axis of a light source.Type: GrantFiled: February 14, 2022Date of Patent: April 23, 2024Assignee: OMRON CorporationInventors: Masayuki Shinohara, Yasuhiro Tanoue, Masafumi Danno
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Publication number: 20230117548Abstract: Parallel light traveling in a direction perpendicular to an outgoing surface having a curved surface is emitted. A light guide member according to one or more embodiments may include: an incident surface where light from a light source enters; at least one reflective surface that reflects the light having entered from the incident surface; and an outgoing surface that is formed of a curved surface and emits the light reflected by the reflective surface. The reflective surface reflects the light having entered from the light source in a direction in which the incident angle of the light incident on the outgoing surface is constant.Type: ApplicationFiled: January 26, 2021Publication date: April 20, 2023Applicant: OMRON CorporationInventors: Masafumi DANNO, Masayuki SHINOHARA, Norikazu KITAMURA
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Publication number: 20220390664Abstract: A display device according to one or more embodiments may be provided with: a light guide plate that guides incident light and emits the light from a light exit surface; a half mirror disposed on the light-exit-surface side of the light guide plate; and a mirror disposed on the side opposite to the light exit surface of the light guide plate. The light guide plate may form an image accompanied by a change that is made in a direction from the half mirror toward the mirror in a space different from the light exit surface.Type: ApplicationFiled: October 23, 2020Publication date: December 8, 2022Applicant: OMRON CorporationInventors: Masafumi DANNO, Shizuto YUKUMOTO, Masayuki SHINOHARA, Norikazu KITAMURA
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Publication number: 20220291521Abstract: A light guide according to one or more embodiments may include an incident surface that receives light from a light source, a first reflective surface that reflects incident light, a second reflective surface that reflects light reflected by the first reflection surface to be parallel light, and an emission surface that may allow parallel light reflected by the second reflective surface to be emitted. The first reflective surface reflects light at a reflection angle nonuniform across the first reflective surface. The second reflective surface has a saw-toothed cross section.Type: ApplicationFiled: February 17, 2022Publication date: September 15, 2022Applicant: OMRON CorporationInventors: Masayuki SHINOHARA, Gouo KURATA, Yasuhiro TANOUE, Masafumi DANNO, Yuto MORI
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Publication number: 20220291440Abstract: A light guide plate according to one or more embodiments may include an incident surface that receives light and an optical path changer on a back surface perpendicular to the incident surface. Light reflected by the optical path changer forms a stereoscopic image including a near formed image at an imaging position within a predetermined distance from the back surface and a distant formed image at another imaging position. The near formed image includes an image formation area with a larger total area than an image formation area of the distant formed image.Type: ApplicationFiled: February 15, 2022Publication date: September 15, 2022Applicant: OMRON CorporationInventors: Masayuki SHINOHARA, Yasuhiro TANOUE, Masafumi DANNO
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Publication number: 20220291439Abstract: A light guide plate according to one or more embodiments may include an incident surface that receives light, and an optical path changer on a back surface perpendicular to the incident surface. The optical path changer may reflect light to be emitted through an emission surface parallel to the back surface. The light emitted through the emission surface may form a formed image including a plane image representing a surface. The plane image may include a near imaging portion and a distant imaging portion. The plane image may have two ends included in the near imaging portion in a cross section perpendicular to the back surface and an optical axis of a light source.Type: ApplicationFiled: February 14, 2022Publication date: September 15, 2022Applicant: OMRON CorporationInventors: Masayuki SHINOHARA, Yasuhiro TANOUE, Masafumi DANNO
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Patent number: 7771100Abstract: A surface light source apparatus including a point light source, a light guide plate which spreads light introduced from the point light source into a planar shape to output the light from a light outgoing plane, and a light blocking member which covers parts of the point light source and the light outgoing plane of the light guide plate. A gap shielding member is projected toward the light outgoing plane from a surface on a side facing the light outgoing plane of the light blocking member. At least a portion facing the light outgoing plane in the gap shielding member is made of a material having a light blocking property.Type: GrantFiled: September 18, 2007Date of Patent: August 10, 2010Assignee: OMRON CorporationInventors: Takako Yamamoto, Masafumi Danno, Mamoru Yabe, Gen Sakai, Yoshihiro Ueno
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Publication number: 20080068858Abstract: A surface light source apparatus including a point light source, a light guide plate which spreads light introduced from the point light source into a planar shape to output the light from a light outgoing plane, and a light blocking member which covers parts of the point light source and the light outgoing plane of the light guide plate. A gap shielding member is projected toward the light outgoing plane from a surface on a side facing the light outgoing plane of the light blocking member. At least a portion facing the light outgoing plane in the gap shielding member is made of a material having a light blocking property.Type: ApplicationFiled: September 18, 2007Publication date: March 20, 2008Applicant: OMRON CORPORATIONInventors: Takako Yamamoto, Masafumi Danno, Mamoru Yabe, Gen Sakai, Yoshihiro Ueno