Assignee: Tamron Co., Ltd.

Location: Saitama, JP
No. of patents: 33

Number	Title	Issue Date
8169718	Wide-angle zoom lens The present invention is directed to wide-angle zoom lenses dedicated to single-lens reflex digital cameras, which attains zoom ratio greater than 2. Such a wide-angle zoom lens has four groups of lens pieces, namely comprising the leading or foremost 1st lens group...	05/01/2012
8139291	Image blur prevention actuator and lens unit and camera equipped therewith An actuator for moving an imaging lens to prevent blurring of an image includes a fixed portion; a movable portion attached to the imaging lens; a plurality of spherical bodies sandwiched between the movable portion and the fixed portion, supporting the movable port...	03/20/2012
8090248	Anti-vibration actuator and lens unit/camera equipped therewith To provide an anti-vibration actuator with which a high drive force can be obtained without increasing size. The present invention is an anti-vibration actuator, including a fixed portion, a movable portion, movable portion support means, first drive means having a ...	01/03/2012
8049968	Zoom lens The invention is directed to inner-focusing zoom lenses that include multi groups of lens pieces, namely, the first lens group or the leading lens group of positive refractivity, the second lens group of negative refractivity, and the remaining trailing groups of po...	11/01/2011
8049782	Image blur correction device and imaging device furnished therewith Provides an image blur correction device capable of accurately moving an imaging element, and an imaging device equipped therewith. The image blur correction device of the present invention includes a fixed plate (12); a moving base (14) to which an im...	11/01/2011
8031418	Lens driving mechanism and image pickup apparatus using the same A lens driving mechanism for an image pickup apparatus capable of being reduced in size, and having excellent driving accuracy and tranquility is provided. The lens driving mechanism is characterized in that vibration of a piezoelectric vibration motor is used as a ...	10/04/2011
8018666	Lens-driving unit Provided is a lens-driving unit reduced in size and improved in durability. A first flexible printed wiring board of the lens-driving unit has a terminal on one side connected to a first piezoelectric motor and lead in parallel to an optical axis, and the other side...	09/13/2011
8014081	Chromatic aberration compensating image optics An imaging optics capable of compensating for chromatic aberration is provided with a light shielding means in a surface peripheral area of a certain lens element in a lens system so as to block a light flux of a specified wavelength range, thereby eliminating chrom...	09/06/2011
7934875	Method for arranging flexible printed wiring board in lens barrel of an imaging device, and imaging device using flexible printed wiring board arranged by the same method An object of the present invention is to provide a method for arranging an FPC in a lens barrel of an imaging device which allows installation of new function to an imaging device without eliminating function installed and size up. To solve the problem, the FPC elec...	05/03/2011
7924513	Lens barrel There is provided a lens barrel including: a rear barrel to which an imaging device is attachable, an imaging optical system leading a subject image to the imaging device, and an image blur correcting unit moving a shift lens forming the imaging optical system in a ...	04/12/2011
7889438	Large-aperture zoom lens The invention is directed to a large-aperture zoom lens that provides an aperture ratio as small as 2.8 as strongly desired, facilitates implementation with a vibration compensating mechanism, and successfully downsizes in more compact lens. The large-aperture zoom ...	02/15/2011
7773308	Wide-angle zoom lens The present invention is directed to a wide-angle zoom lens that attains the field of view ranging from 80 to 115 degrees in field angle with the zooming power of 2× or even higher, and that is capable of approximately compensating for various types of aberration s...	08/10/2010
7768722	Lens barrel There is provided a lens barrel including an imaging optical system, and an image blur correction unit moving a shift lens forming the imaging optical system in a plane perpendicular to an optical axis of the imaging optical system. The image blur correction unit in...	08/03/2010
7755666	Actuator, and lens unit and camera with the same An actuator that has a simple mechanism capable of locking a movable member, and a lens unit and a camera with the same. The actuator (10) includes a fixed member (12), a movable member (14) having a locking element (14a), a movabl...	07/13/2010
7679847	Lens-barrel and image pickup apparatus A lens barrel and an image pickup apparatus include a flow path (70) that is provided at a position (A) where a first fixed lens frame (22) faces a movable lens frame (32) and a position (B) where the movable lens frame (32) faced the fir...	03/16/2010
7599124	Telephoto zoom lens The present invention is directed to a compact large-aperture-ratio inner-focusing telephoto zoom lens of the reduced total lens extension where minimizing a photo-shooting distance down to as short as 1 meter does not cause the lens optics to displace accordingly g...	10/06/2009
7573653	Inner focusing zoom lens barrel The present invention is directed to an inner focusing zoom lens barrel provided with cams of a well-balanced configuration for smooth zooming and/or focusing operations, which attains sufficient performances at the minimum object distance, which is capable of inhib...	08/11/2009
7573649	High variable power zoom lens The present invention is directed to a high variable power zoom lens that ensures a flange-back or a backfocal distance required for typical 35-mm film cameras while keeping an angle of view sufficient to cover the wide-angle for an APS-size imaging plane dimensione...	08/11/2009
7379244	Anti-reflection film The present invention is dedicated to a cost reduced anti-reflection film of a multi-lamination structure that is reduced in number of layers and increased in thickness of the same for the purpose of facilitating the total control of the film thickness and that can ...	05/27/2008
7321471	Lens barrel and lens system The invention is directed to a lens barrel and a compact lens system incorporating the lens barrel where notches defined in a cam barrel to serve as bolt holes and disengage the studs are reduced in dimensions both along and around the optical axis, thereby ensuring...	01/22/2008
7286303	Macro lens The invention discloses a macro lens that takes a retrofocusing function for the purpose of downsizing. The macro lens employs a floating mechanism to cover a wide photographing range from the equi-magnification to the infinity, and especially, attains a great imagi...	10/23/2007
7177090	Telecentric zoom lens The present invention is directed to provide a telecentric zoom lens capable of attaining a small numerical aperture, a wide angle of view, reduced distortion, high resolution, reduced chromatic aberration, small aperture, and yet avoiding a cost increase and also t...	02/13/2007
7101049	Projector optics and projector with light source of LEDs The invention is directed to downsized projector optics and projector both of which employ an LED light source attaining the enhanced efficiency of the quantity of the emitted light. The projector optics and the projector respectively include, in position, a polygon...	09/05/2006
7092171	Lens barrel with lock mechanism A lens barrel with a lock arranged to avoid loosening the lock and defocusing the lens barrel when vibrated during focusing and zooming. The lens barrel includes a fixed cylinder, an adjustment ring, lock screws and a lock ring, lock screws and a lock ring. The adju...	08/15/2006
7075731	Large aperture zoom lens The invention is directed to a large aperture zoom lens of the improved optical performance, serving as a standard zoom lens especially suitable to a single-lens reflex camera. The zoom lens employs a zooming system with four groups of lenses having positive, negati...	07/11/2006
6984078	Aperture diaphragm, imaging device, and method of manufacturing the aperture diaphragm Diaphragm blades move in a direction approaching to or separated from an optical axis of an incident light at the time of operation. Opening edges of the diaphragm blades are provided with neutral density (ND) filters having a predetermined transmittance to pass the...	01/10/2006
6822804	Projection lens and liquid crystal projector The present invention is directed to a projection lens that has a sufficiently long back focus to enable a wide-angle projection and has astigmatism, abaxial spherical aberration (coma), distortion, and other types of aberration satisfactorily corrected. The project...	11/23/2004
6754011	High zoom ratio lens A high zoom ratio lens with a reduced number of barrel components or elements of a telescopic barrel having a light-weight outermost diameter. The zoom lens comprises first to fourth groups of lenses, a fixed barrel, a first cam barrel inside the fixed barrel, a lin...	06/22/2004
6714358	Lens barrel, and cam barrel molding die A lens barrel having a cam barrel is disclosed. The cam barrel is molded by die-cutting in radial and other directions relative to the optical axis so as to have raised cams without undercuts if the raised cams are even partially lined up fore and behind one another...	03/30/2004
6591065	Single-lens reflex camera having a focusing detection sensor capable of calibrating, and a viewfinder A focusing detection sensor is positioned in a viewfinder in a single-lens reflex camera but is nevertheless able to determine a focal point on an image of an object with enhanced accuracy. For that purpose, a single-lens reflex camera includes a camera b...	07/08/2003
6580566	Zoom lens and zoom lens barrel A zoom lens and zoom lens barrel superior in precision and excellent in manipulability is disclosed, and they have a feature of combination of plastic cam barrel that retains a high dimensional precision and brings about decrease in a manufacturing cost, ...	06/17/2003
6567221	High zoom ratio lens device having focus and zoom cams The invention is directed to provide a high zoom ratio lens that can be configured to be efficiently downsized and to effectively attain sufficient compensation rate for focusing a lens component in any type of zoom ranges. The high zoom ratio lens compri...	05/20/2003
6437923	High zoom ratio lens The present invention is directed to a compact and lightweight high magnification zoom lens utilizing a 4-element zoom layout of positive, negative, positive, and positive in refractive property, which is approximately 75 degrees in shooting angle of view...	08/20/2002

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Assignee: Tamron Co., Ltd.