Patents Assigned to TOKYO VISIONARY OPTICS CO., LTD.
-
Patent number: 11947087Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of the wide field of view, the low-profileness and the low F-number. An imaging lens comprises, in order from an object side to an image side, a first lens having a convex surface facing the object side and positive refractive power near an optical axis, a second lens having negative refractive power near the optical axis, a third lens having aspheric surfaces on both sides, a fourth lens, and a fifth lens having a concave surface facing the image side and the negative refractive power near the optical axis, wherein an image-side surface of said fifth lens is formed as an aspheric surface having at least one pole point in a position off the optical axis, and predetermined conditional expressions are satisfied.Type: GrantFiled: August 2, 2021Date of Patent: April 2, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Huang Yunbai
-
Patent number: 11927827Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a low F-number. An imaging lens comprises in order from an object side to an image side, a first lens with positive refractive power having an object-side surface being convex in a paraxial region; a second lens with negative refractive power having an object-side surface being convex in a paraxial region; a third lens with negative refractive power having an object-side surface being concave in a paraxial region; a fourth lens with negative refractive power in a paraxial region; and a fifth lens with positive refractive power having an image-side surface being convex in a paraxial region, and predetermined conditional expressions are satisfied.Type: GrantFiled: January 28, 2021Date of Patent: March 12, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Masaya Hashimoto
-
Patent number: 11914113Abstract: There is provided an imaging lens with high-resolution which satisfies demand of the wide field of view, the low-profileness and the low F-number, and has excellent optical characteristics. An imaging lens comprises in order from an object side to an image side, a first lens having a convex surface facing the object side near an optical axis and positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens having a concave surface facing the image side near the optical axis and negative refractive power, wherein an image-side surface of said seventh lens is formed as an aspheric surface having at least one pole point in a position off the optical axis, said second lens has positive refractive power near the optical axis, and said sixth lens has plane surfaces both on the object side and the image side and is formed as a double-sided aspheric lens.Type: GrantFiled: August 2, 2021Date of Patent: February 27, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Hisao Fukaya
-
Patent number: 11914112Abstract: There is provided an imaging lens with high-resolution which satisfies demand of the wide field of view, the low-profileness and the low F-number, and has excellent optical characteristics. An imaging lens comprises in order from an object side to an image side, a first lens having a convex surface facing the object side near an optical axis and positive refractive power, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens having a concave surface facing the image side near the optical axis and negative refractive power, wherein an image-side surface of said seventh lens is formed as an aspheric surface having at least one pole point in a position off the optical axis, said second lens has positive refractive power near the optical axis, and said sixth lens has plane surfaces both on the object side and the image side and is formed as a double-sided aspheric lens.Type: GrantFiled: August 2, 2021Date of Patent: February 27, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Hisao Fukaya
-
Patent number: 11899187Abstract: There is provided a compact imaging lens configured to properly correct aberrations. The imaging lens includes, in order from an object side to an image side, a first lens L1 with positive refractive power, a second lens L2 with negative refractive power, a third lens L3 with positive refractive power, a fourth lens L4 with positive refractive power, a fifth lens L5, a sixth lens L6, a seventh lens L7 with positive refractive power, and an eighth lens L8 with negative refractive power. The eighth lens L8 is formed in a shape of a meniscus lens in a paraxial region, and has an aspheric image-side surface having at least one inflection point. In addition, the following conditional expressions are satisfied: ?5.00<f2/f<?2.00 10.00<f4/f<25.00 where f: a focal length of the overall optical system of the imaging lens, f2: a focal length of the second lens, and f4: a focal length of the fourth lens.Type: GrantFiled: August 2, 2021Date of Patent: February 13, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Hitoshi Hirano
-
Patent number: 11899173Abstract: There is provided a compact and high-resolution imaging lens at a low cost.Type: GrantFiled: September 30, 2020Date of Patent: February 13, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Yukio Sekine
-
Patent number: 11899174Abstract: There is provided a compact and high-resolution imaging lens at a low cost.Type: GrantFiled: September 30, 2020Date of Patent: February 13, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Yukio Sekine
-
Patent number: 11899180Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of low profile and low F-number. An imaging lens comprising in order from an object side to an image side, a first lens with positive refractive power having an object-side surface being convex in a paraxial region, a second lens with negative refractive power in a paraxial region, a third lens with negative refractive power having an object-side surface being convex in a paraxial region, a fourth lens having an object-side surface being convex in a paraxial region, a fifth lens with negative refractive power in a paraxial region, and a sixth lens with positive refractive power having an image-side surface being convex in a paraxial region, and predetermined conditional expressions are satisfied.Type: GrantFiled: August 2, 2021Date of Patent: February 13, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Masaya Hashimoto
-
Patent number: 11892606Abstract: An imaging lens which uses a larger number of constituent lenses for higher performance and features compactness and a wide field of view. The imaging lens is composed of seven lenses to form an image of an object on a solid-state image sensor. The constituent lenses are arranged in the following order from an object side to an image side: a first lens with positive refractive power; a second lens with positive or negative refractive power; a third lens with negative refractive power; a fourth lens with positive or negative refractive power as a double-sided aspheric lens; a meniscus fifth lens having a convex surface on the image side; a sixth lens with positive or negative refractive power as a double-sided aspheric lens; and a seventh lens with negative refractive power, in which an air gap is provided between lenses.Type: GrantFiled: May 3, 2021Date of Patent: February 6, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Masaya Hashimoto
-
Patent number: 11885936Abstract: An imaging lens which uses a larger number of constituent lenses for higher performance and features compactness and a wide field of view. The imaging lens is composed of seven lenses to form an image of an object on a solid-state image sensor. The constituent lenses are arranged in the following order from an object side to an image side: a first lens with positive refractive power; a second lens with positive or negative refractive power; a third lens with negative refractive power; a fourth lens with positive or negative refractive power as a double-sided aspheric lens; a meniscus fifth lens having a convex surface on the image side; a sixth lens with positive or negative refractive power as a double-sided aspheric lens; and a seventh lens with negative refractive power, in which an air gap is provided between lenses.Type: GrantFiled: May 3, 2021Date of Patent: January 30, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Masaya Hashimoto
-
Patent number: 11874440Abstract: There is provided a compact and high-resolution imaging lens at a low cost.Type: GrantFiled: September 30, 2020Date of Patent: January 16, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Yukio Sekine
-
Patent number: 11874433Abstract: There is provided a compact and high-resolution imaging lens at a low cost.Type: GrantFiled: September 30, 2020Date of Patent: January 16, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Yukio Sekine
-
Patent number: 11867878Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a low F-number. An imaging lens comprises in order from an object side to an image side, a first lens with positive refractive power having a convex object-side surface in a paraxial region, a second lens with negative refractive power in a paraxial region, a third lens with positive refractive power in a paraxial region, a fourth lens, a fifth lens with negative refractive power in a paraxial region, a sixth lens with positive refractive power having a convex object-side surface in a paraxial region, and a seventh lens with negative refractive power having a concave image-side surface in a paraxial region, and predetermined conditional expressions are satisfied.Type: GrantFiled: June 8, 2020Date of Patent: January 9, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Huang Yunbai
-
Patent number: 11867976Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having negative refractive power; a fourth lens having negative refractive power; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens having negative refractive power, arranged in this order from an object side to an image plane side. The ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape having an inflection point.Type: GrantFiled: August 2, 2021Date of Patent: January 9, 2024Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Hitoshi Hirano
-
Patent number: 11852788Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a low F-number. An imaging lens comprises in order from an object side to an image side, a first lens with negative refractive power having an object-side surface being convex in a paraxial region, a second lens with positive refractive power in a paraxial region, a third lens with the negative refractive power in a paraxial region, a fourth lens with the positive refractive power in a paraxial region, a fifth lens having a flat object-side surface and a flat image-side surface that are aspheric, and a sixth lens with the negative refractive power having an image-side surface being concave in a paraxial region.Type: GrantFiled: June 8, 2020Date of Patent: December 26, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventors: Koji Nitta, Masaya Hashimoto
-
Patent number: 11841499Abstract: An object is to provide an optical element and an imaging lens that reproduce clear images by restraining ghosting, flare, and/or similar occurrences caused by unwanted light reflected by the outer circumference surface of an edge of the optical element. An optical element 100 includes an optical effective portion 101 and an edge 102. The edge 102 is located around the optical effective portion 101 and has an outer circumference surface 103. The outer circumference surface 103 includes roughened portions 200. An imaging lens uses the optical element 100.Type: GrantFiled: July 6, 2021Date of Patent: December 12, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventors: Tatsuya Oouchi, Shigeru Endo
-
Patent number: 11835687Abstract: There is provided an imaging lens with excellent optical characteristics which satisfies demand of a low profile and a low F-number.Type: GrantFiled: November 3, 2020Date of Patent: December 5, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventors: Kenichi Kamada, Masaya Hashimoto
-
Patent number: 11828909Abstract: An imaging lens which uses a larger number of constituent lenses for higher performance and features compactness and a wide field of view. The imaging lens is composed of seven lenses to form an image of an object on a solid-state image sensor. The constituent lenses are arranged in the following order from an object side to an image side: a first lens with positive refractive power; a second lens with positive or negative refractive power; a third lens with negative refractive power; a fourth lens with positive or negative refractive power as a double-sided aspheric lens; a meniscus fifth lens having a convex surface on the image side; a sixth lens with positive or negative refractive power as a double-sided aspheric lens; and a seventh lens with negative refractive power, in which an air gap is provided between lenses.Type: GrantFiled: May 3, 2021Date of Patent: November 28, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Masaya Hashimoto
-
Patent number: 11829007Abstract: An imaging lens includes a first lens having positive refractive power; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having positive refractive power; a fifth lens; a sixth lens; a seventh lens; an eighth lens; and a ninth lens having negative refractive power, arranged in this order from an object side to an image plane side. The ninth lens is formed in a shape so that a surface thereof on the image plane side has an aspherical shape having an inflection point.Type: GrantFiled: August 2, 2021Date of Patent: November 28, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventor: Hitoshi Hirano
-
Patent number: 11829006Abstract: An imaging lens includes a first lens; a second lens; a third lens having negative refractive power; a fourth lens; a fifth lens; a sixth lens; and a seventh lens, arranged in this order from an object side to an image plane side. The sixth lens is formed in a shape so that a surface thereof on the image plane side is concave at a paraxial region thereof. The seventh lens is formed in a shape so that a surface thereof on the image plane side is aspheric. The first lens and the second lens have a specific composite focal length. The third lens have a specific focal length.Type: GrantFiled: December 3, 2020Date of Patent: November 28, 2023Assignee: TOKYO VISIONARY OPTICS CO., LTD.Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Tomohiro Yonezawa