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Class 359/700 - Cam groove type


Subclass of Class 359 - Optical: systems and elements
Definition: Subject matter wherein the cam device is a slot.
No. of patents: 372
Last issue date: 05/15/2012


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NumberTitleIssue Date
8179612Retractable lens barrel unit
A lens barrel unit includes a lens holding cylinder, a cam cylinder, and a straightforward movement cylinder. The lens holding cylinder includes a ring-shaped step that projects outward in a radial direction. In an image pickup state, a surface of the ring-shaped st...
05/15/2012
8174775Lens barrel and imaging device
A lens barrel which allows efficient interlock between a cylindrical member such as a moving cam ring and a component such as a viewfinder cam plate or a strobe cam plate, without size-increasing. The lens barrel comprises a first cylindrical member, and a second cy...
05/08/2012
8134784Lens apparatus capable of performing extension/retraction operation with respect to image pickup apparatus body and image pickup apparatus having the same
A lens apparatus of the present invention includes a cam ring 7 having an inner circumferential surface on which first, second, and third cam groove portions 7a, 7b, and 7c with which first, second, and third cam foll...
03/13/2012
8134785Imaging apparatus
An imaging apparatus has in a first cam groove a first cam surface whose lead is lying with respect to the rotating direction of a drive ring, and a second cam surface whose lead is steep with respect to the rotating direction of the drive ring, and when transition ...
03/13/2012
8068287Lens barrel
A lens barrel includes a lens holding frame configured to hold a lens and being provided with a cam follower, a guide tube engaging with the lens holding frame and being configured to rectilinearly guide the lens holding frame in an optical axis direction, and a cam...
11/29/2011
8045277Lens barrel, camera and information device
A cam locus of the cam surface on the image plane side of the first group cam groove of the rotating cylinder has an angle to a flat surface where the optical axis crosses perpendicularly. When the cam follower engages with the cam surface on the image plane side, a...
10/25/2011
8023201Retractable lens barrel with high shock resistance
A retractable lens barrel that improves shock resistance without obstructing miniaturization. In the retractable lens barrel, pins formed in the lens barrel are engaged with grooves formed in a cam ring, and the lens barrel is caused to move in a direction of an opt...
09/20/2011
8004774Lens apparatus and image-pickup apparatus
A lens apparatus which has a small size but allows a higher magnification and an image-pickup apparatus including the lens apparatus are disclosed. The lens apparatus provides a variable magnification by moving a first lens and a second lens placed closer to an imag...
08/23/2011
7990627Lens device
A second fixed cylinder includes a lens attachment portion having straight-ahead grooves provided therein and a guide groove arrangement portion having a first guide groove and a second guide groove provided therein. A second rotating cylinder rotatably supported by...
08/02/2011
7990626Lens barrel and image capturing apparatus
Provided is a lens barrel comprising: an optical system including an optical component that moves relative to a fixed cylinder; a holding frame that holds the optical component; a guide axle that is connected to the holding frame and that extends in a direction para...
08/02/2011
7952815Lens barrel
A lens barrel includes an imaging optical system having front and rear optical elements with a spring installed therebetween; a reference barrel which includes a forward-facing limit surface and a rearward-facing limit surface; a first position control mechanism whi...
05/31/2011
7916400Compact zoom lens
A zoom lens includes a substrate, an imaging unit, a stationary lens barrel, a cam lens barrel and a guide lens barrel. The substrate defines a plurality of openings thereon. The imaging unit is attached on the substrate. The stationary lens barrel is mounted on the...
03/29/2011
7903347Lens apparatus and optical apparatus
The lens apparatus includes a guide barrel including a guide groove portion penetrating through a circumferential wall of the guide barrel, and a cam barrel disposed rotatably and including a penetrating cam groove portion penetrating through a circumferential wall ...
03/08/2011
7843648Compact zoom lens
A zoom lens includes a substrate, an imaging unit, a stationary lens barrel, a cam lens barrel and a guide lens barrel. The substrate defines a plurality of openings thereon. The imaging unit is attached on the substrate. The stationary lens barrel is mounted on the...
11/30/2010
7839579Lens barrel, camera and information device
A cam locus of the cam surface (G1) on the image plane side of the first group cam groove (27) of the rotating cylinder (21) has an angle to a flat surface where the optical axis crosses perpendicularly. In a case in which the cam follower (2...
11/23/2010
7800837Cylindrical molded article, lens barrel, camera, and injection mold
A drive frame 34 as a cylindrical molded article has a drive frame main body 34a, three first cam grooves 34c, three second cam grooves 34d, three high-density regions H, and three cam pins 43. The cam pins ...
09/21/2010
7773313Cam mechanism of a retractable zoom lens
A cam mechanism includes a cam ring having front and rear cam grooves which have a common reference cam diagram and are formed so that a front part of the front cam groove and a rear part of the rear cam groove are omitted from the reference cam diagram. A normal-wi...
08/10/2010
7733577Lens barrel
A lens barrel having a configuration lending itself to effectively reducing the size thereof and ensuring appropriate and safe operation thereof. The lens barrel includes a guiding portion provided for a lens holding member for guiding a cam follower in a radial dir...
06/08/2010
7701646Lens barrel
A lens barrel is provided. The lens barrel includes a first cylinder that includes at least one continuous groove on an interior surface thereof. The at least one continuous groove includes a trough of a helicoidal screw and a circumferential groove formed in a circ...
04/20/2010
7623302Cam drive mechanism, lens barrel and camera
A cam drive mechanism includes: a cylinder in which a cam groove is formed from one end face of an inner circumferential surface toward another end with a forming mold; a drive target object that comprises a cam follower to engage in the cam groove and is linearly d...
11/24/2009
7595937Lens apparatus and image-pickup apparatus
A lens apparatus which has a small size but allows a higher magnification and an image-pickup apparatus including the lens apparatus are disclosed. The lens apparatus provides a variable magnification by moving a first lens and a second lens placed closer to an imag...
09/29/2009
7548382Lens barrel and imaging device
A lens barrel which allows efficient interlock between a cylindrical member such as a moving cam ring and a component such as a viewfinder cam plate or a strobe cam plate, without size-increasing. The lens barrel comprises a first cylindrical member, and a second cy...
06/16/2009
7542216Zoom lens system
The present invention is directed to improve prior art zoom lens systems that have groups of lens pieces moved within a lens barrel for the zooming and the focusing and to provide an improved zoom lens system that is simplified and robust in configuration so as to w...
06/02/2009
7532413Lens barrel
A lens barrel includes a lens group having an optical axis associated therewith, a fixed barrel and a rotatable barrel receives the fixed barrel. The fixed barrel has the lens group received therein and has a plurality of projections extending radially from the oute...
05/12/2009
7436602Lens barrel
A lens barrel includes a helicoid ring provided with a helicoid; a retractable rotational ring which is guided by the helicoid to move along an optical axis while rotating, wherein the retractable rotational ring includes a pair of split retractable rotational rings...
10/14/2008
7420747Lens drive and projector comprising lens drive
This lens drive is a lens drive for moving a lens arranged in a housing, and comprises a rotating knob located out of the optical axis of the lens with a rotation axis unparallel to the optical axis of the lens and arranged outside the housing, a knob-side cam pin p...
09/02/2008
7420748Lens apparatus and optical apparatus
A lens apparatus includes a supporting member including a parallel engaging portion parallel to an optical axis direction and a circumferential engaging portion extending in the circumferential direction on a plane orthogonal to the optical axis direction; a lens su...
09/02/2008
7417804Collapsible lens barrel and imaging device
A lens barrel has a base, a second lens holder frame holding a second lens group, a first lens holder frame holding a first lens group, a cam ring, and a fixed ring. The second lens holder frame has three guides projecting axially from an outer circumferential porti...
08/26/2008
7408722Cam mechanism of a zoom lens
A cam mechanism of a zoom lens, includes a cam ring including cam grooves having different reference cam diagrams on at least one of inner and outer peripheral surfaces of the cam ring; and movable frames which include cam followers respectively engaged in the cam g...
08/05/2008
7391965Lens apparatus and image-taking apparatus
A lens apparatus is disclosed, which is capable of keeping the engagement of a protruding portion of a first member and a cam groove portion of a second member even if an external force acts on the apparatus. The lens apparatus comprises: a first member including fi...
06/24/2008
7372638Lens barrel
There is disclosed a lens barrel including a fixed frame, a rotary frame rotatable with respect to the fixed frame to advance or retract in an optical axis direction, and a rectilinear guide frame rotatable relative to the rotary frame to displace integrally with th...
05/13/2008
7365915Optical module
An exemplary optical module (100) includes a lens barrel (20), a lens group (40), a spacer (60), and a filter (80). The lens barrel has an inner wall (201), and at least two securing grooves (206) formed on the inner ...
04/29/2008
7356251Assembly-stage focus adjustment mechanism of a zoom lens
An assembly-stage focus adjustment mechanism of a zoom lens barrel including a plurality of lens groups which are moved while distances therebetween are changed to perform a zooming operation, the assembly-stage focus adjustment mechanism including two lens fixing f...
04/08/2008
7356252Auto-focusing zoom lens mechanism
An auto-focusing zoom lens mechanism includes a base unit forming a space; an auto-focusing (AF) lens unit located in the base unit and having a trajectory bar engaged therewith; a zoom lens unit located in the base unit and mounted on the AF lens unit and having a ...
04/08/2008
7352516Lens apparatus and camera
A lens apparatus is disclosed which allows a reduced overall length when it is put into a barrel body while a high magnification of taken images is realized. The lens apparatus includes a first holding member which holds a first lens unit; a second holding member wh...
04/01/2008
7345836Zoom lens driving apparatus
A zoom lens driving apparatus achieves the object of driving multiple lens groups by a single motor and low production cost. When a first lens group, which includes a first lens, moves along guide rods, a leading cam of a leading member drives a leading pin of a fol...
03/18/2008
7342606Zoom lens system for camera
A zoom lens system includes a zoom base to which an image pickup device can be coupled, a driving source for generating rotational force in accordance with a control signal of a control unit disposed in the electronic facility, plural power transmission gears dispos...
03/11/2008
7330317Lens system and image capturing apparatus
A lens system 3 is provided with a plurality of lens units including a first lens unit 9, and has a condition changing structure 6 that is capable of changing the condition of the first lens unit 9 without changing the position of the fir...
02/12/2008
7327527Lens supporting frame of lens device and method of adjusting the same
A lens supporting frame is provided and includes a lens holder supporting a lens and a moving frame which is fitted to a cylindrical part of the lens holder to support the same. Ribs are provided at equal intervals in a rotation direction on a rear end face of the l...
02/05/2008
7321471Lens 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
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