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| Number | Title | Issue Date |
| 7473042 | Light-amount adjusting apparatus A light-amount adjusting apparatus includes two aperture diaphragms that move in such a direction that the two aperture diaphragms come close or get away with respect to an optical axis of an incident light to adjust a size of an aperture opening. At least one of th... | 01/06/2009 |
| 7316514 | Light controller and image pickup device including the same A light controller includes a substrate that has an optical path opening; at least a pair of blades that is reciprocally supported on the substrate and opens and closes the optical path opening; and a driver unit that drives the opening and closing of the pair of bl... | 01/08/2008 |
| 7189014 | Production process of light amount-adjusting member, light amount-adjusting member, light amount-adjusting device and photographing apparatus A process for producing a light amount-adjusting member, such as an ND filter, that comprises the steps of providing a transparent base material and a coloring liquid; and applying a coloring liquid to the base material by ejecting the coloring liquid to the base ma... | 03/13/2007 |
| 7172349 | Light amount control device and optical apparatus with guard portion to protect ND filter from lever member Provided is a light amount control device eliminating a deviation in image forming position over the entire area of the variable range of an aperture due to an ND filter and assuring smooth stopping operation. The light amount control device of the present invention... | 02/06/2007 |
| 7113318 | Light amount control apparatus, photographing apparatus, and filter It is an object of this invention to independently control the F-number and the number of light attenuation steps of a multi-density ND filter by using a light amount control apparatus using an iris stop and the ND filter. The iris stop mechanism made up of a plural... | 09/26/2006 |
| 7079186 | Diaphragm device of a television camera lens for a CCTV surveillance camera A diaphragm device of a lens for a CCTV camera includes a lens barrel, a diaphragm, a base plate which supports the diaphragm, a diaphragm driver for driving the diaphragm to adjust a size of an aperture formed by the diaphragm, an optical filter, and a filter drive... | 07/18/2006 |
| 7070344 | Production process of light amount adjustment member, light amount adjustment device and photographing apparatus A light amount adjustment member, which causes little deterioration of image quality by diffraction at a grain boundary between ink dots in a colored portion, can be simply produced at low production cost and high yield. The light amount adjustment member has a dens... | 07/04/2006 |
| 7053514 | Image apparatus and drive motor A drive motor is proposed, which serves as a drive source for a movement mechanism constituting an iris for an optical path of an imaging system. The drive motor has a shaft serving as a center of rotation, a magnet, two-pole magnetized and rotated around the shaft,... | 05/30/2006 |
| 6927798 | Light amount adjusting apparatus and optical apparatus having the same A light amount adjusting apparatus is constructed by a driving source, a plurality of light shielding members each having a notched portion adapted to form a light passing port, in which the light shielding member is moved by being driven by the driving source to th... | 08/09/2005 |
| 6866431 | Light amount adjustment apparatus, manufacturing method, and photographing apparatus There is disclosed a light amount adjustment apparatus for adjusting a state of a flux passed through an aperture having a predetermined aperture diameter, the apparatus comprising: a light amount adjustment member in which a first region having a predetermined tran... | 03/15/2005 |
| 6669381 | Actuator and selector mechanism for compact camera Disclosed herein is a camera having a shutter mechanism; actuating means for actuating the shutter mechanism; and, an aperture selecting assembly that is movable from an initial mode position to at least a first mode position. Also disclosed is an apertur... | 12/30/2003 |
| 6533473 | Imaging apparatus with exposure controlling mechanism An imaging apparatus with an exposure controlling mechanism being made to define an iris aperture by moving iris blades on surfaces perpendicular to an optical axis, wherein the exposure controlling mechanism includes a first iris blade to which a first N... | 03/18/2003 |
| 6467975 | Quantity-of-light adjusting device and optical apparatus having the same A quantity-of-light adjusting device includes a drive source, a base member having an opening formed therein, and a blade arranged to move by being driven by the drive source and having three openings formed therein side by side in a row in a moving direc... | 10/22/2002 |
| 6350068 | Quantity-of-light adjusting device and optical apparatus having the same A quantity-of-light adjusting device includes a drive source, a base member having an opening formed therein, and a blade arranged to move by being driven by the drive source and having three openings formed therein side by side in a row in a moving direc... | 02/26/2002 |
| 6340252 | Light-quantity controlling device and apparatus using the same A light-quantity controlling device includes a driving source, a first light-quantity controlling member driven by the driving source and having a first elongated opening extending in a direction of movement of the first light-quantity controlling member,... | 01/22/2002 |
| 5502525 | Shutter blades for increasing uniformity of oblique incident light In a photographing device of the kind having a plurality of blades disposed one after another in an overlapping manner in the direction of the optical axis of a photo-taking lens, with an exposing aperture part for high luminance included in an exposing a... | 03/26/1996 |
| 4415251 | Camera shutter having bobbin driven blades A light controlling system for photographic apparatus in which a pair of cooperating blades are defined by linear flights of a folded belt formed of an opaque film and having a central portion trained about a fixed axis guide roller with the free ends of ... | 11/15/1983 |
| 4344687 | Diaphragm and shutter mechanism In a camera, first and second blades are operable in a first mode as diaphragm and shutter blades, respectively, for effecting a first aperture-shutter speed combination and are operable in a second mode as shutter and diaphragm blades, respectively, for ... | 08/17/1982 |
| 4184760 | Scanning shutter blade arrangement with inertial wheel In a photographic camera apparatus, there is provided an exposure control system of the type embodying "scanning" shutter blade elements in which the opening shutter blade movement is slowed by way of an inertial wheel which is rotated in concert with the... | 01/22/1980 |
| 4129367 | Exposure control system A camera control and exposure system for cameras of the self-developing type includes "scanning type" shutter blade elements which can be quickly closed to terminate an exposure interval by a magnet actuated closing spring arrangement which is thereafter ... | 12/12/1978 |
| 4038674 | Shock inhibiting arrangement for latched shutter blade mechanism This invention relates to a shock inhibiting means for use with an automatic shutter latch mechanism of the type which may be released in response to initial shutter blade movement resulting from energization of the shutter drive means and which may there... | 07/26/1977 |
| 4032941 | Latched shutter system having automatic delay of latch reset An exposure control system for photographic apparatus utilizing electrically controlled shutter-diaphragm blades mechanically latched in a light-blocking condition in conjunction with a latch actuator which delays return of the released latch to the blade... | 06/28/1977 |
| 4017876 | Shutter latch system with automatic release for shock damping member This invention relates to an improvement to a photographic camera of the type having an automatic shutter latch mechanism which may be released in response to initial shutter blade movement resulting from energization of the shutter drive means and which ... | 04/12/1977 |
| 3995295 | Electro-mechanical shutter system having mechanical latch An exposure control system for photographic apparatus utilizing electrically controlled shutter-diaphragm blades and employing a latch, for holding the blades in a light-blocking condition, which is automatically released responsive to actuation of the bl... | 11/30/1976 |
| 3969738 | Exposure control system with inertial characteristic An exposure control system for photographic apparatus includes inertial means for selectively presenting an inertial characteristic to influence the movement of the exposure control system shutter blade elements. The inertial characteristic influences the... | 07/13/1976 |
| 3969739 | Exposure control system with selectively presentable inertia member An exposure control system for photographic apparatus is provided with an inertial member, the inertia characteristic of which may be selectively presented for movement in correspondence with the shutter blade elements of the exposure control system. The ... | 07/13/1976 |
