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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 5387960 | Camera apparatus A camera system having a lens unit provided with an actuator for changing the state of an optical system by driving a driving part and a driving circuit which drives the actuator on the basis of a driving control instruction signal supplied in a given per... | 02/07/1995 |
| 5369430 | Patter correlation type focus detecting method and focus detecting apparatus A focus detecting method includes the step of projecting the real image of an observation object including a plurality of object patterns onto an image pickup device through an optical system and producing image data from an output of the image pickup dev... | 11/29/1994 |
| 5349382 | Image pickup apparatus with image light focus prevention An image pickup apparatus photoelectrically converts image light from an object. The image light incident on the photosensing plane of the image pickup apparatus is optically controlled by a zoom lens and a focus lens. A controller drives the zoom lens to... | 09/20/1994 |
| 5337084 | Automatic focusing device utilizing a trend of variation and degree of reliability of a focusing evaluation value signal to improve image focusing An automatic focusing device including a lens group by which movement of a focused field of an object changes, a drive motor for moving the lens group, a luminance processing circuit for image-sensing the object through the lens group to extract a luminan... | 08/09/1994 |
| 5329109 | Photoelectric converting device having a plurality of monitoring means for detecting point of focus with high precision for focusing area lying over a plurality of blocks A photoelectric converting device includes plurality of charge storage type photoelectric converting elements which are divided into a plurality of groups. A plurality of monitoring sections are respectively provided for the divided photoelectric converti... | 07/12/1994 |
| 5296970 | Zoom lens system A compensator lens is driven by a second driving means such that the rear end of the focal depth of an object image at infinity coincides with a surface of image-formation irrespective of the movement of a variable lens when the object image is photograph... | 03/22/1994 |
| 5287223 | Lens drive controlling apparatus A lens drive controlling apparatus includes a zooming lens, a focusing lens driven in follow-up relation to a movement of the zooming lens on the basis of a predetermined characteristic, a speed sensor for detecting a driving speed of the zooming lens, an... | 02/15/1994 |
| 5282045 | Depth-of-field control apparatus and image pickup apparatus having the same therein An image pickup apparatus for a television and a depth-of-field control apparatus used in the same. Image signals corresponding to a plurality of picture images different in focal point or length position are obtained by a mechanism for changing a focal p... | 01/25/1994 |
| 5253064 | Video camera apparatus with electronic zoom control and method therefor A video camera apparatus including a control circuit for producing an inverse number of /ଲ as control data based on an inputted arbitrary zooming ratio of ଲ/ a sensor for outputting a sensor read signal which has been enlarged by arb... | 10/12/1993 |
| 5225862 | Visual axis detector using plural reflected image of a light source An optical apparatus which detects a visual axis using plural reflected images of a light source includes an observation device with which an observer observes an object. An image sensor is provided for generating a signal and response to an image. Optica... | 07/06/1993 |
| 5202718 | Focus detection apparatus A focus detection apparatus includes two photoelectric conversion units for outputting electrical signals corresponding to light receiving amounts, an optical unit for splitting an object image into two images to cause the two images to be respectively fo... | 04/13/1993 |
| 5200828 | Autofocusing device for use in a video camera and an autofocusing method thereof A method for autofocusing a video camera, adjusting the focus by defining the focus range in which the contrast signal is extracted, generating the control clock pulse having higher frequencies than the video signal during the occurrence period of horizon... | 04/06/1993 |
| 5173807 | Optical instrument This specification discloses an optical instrument comprising a focusing lens, a zooming lens, first detecting means for detecting the focus state of the focusing lens, and control means for moving the zooming lens in conformity with the output of the fir... | 12/22/1992 |
| 5166718 | Finder optical system A finder optical system suited to the electronic camera of the single lens reflex type, the camera having the movable mirror for making a finder optical axis (second optical axis) from the optical axis (first optical axis) of the photographic light beam, ... | 11/24/1992 |
| 5164756 | Camera A camera comprises a first lens group which is arranged to perform a power varying action, a second lens group arranged to adjust focus and to correct a change occurring in an image forming position according to the movement of the first lens group, a foc... | 11/17/1992 |
| 5159469 | Moire removing device for image scanner An image scanner including a camera portion which is provided with a lens, a CCD sensor and an optical glass component having a uniform thickness and refractive index greater than 1. The optical glass component is movable into and out of an optical path e... | 10/27/1992 |
| 5146340 | Image data reading and processing apparatus An image reading system observes a field of view and forms electrical signals indicating the presence of objects within the field as to location and movement. After ascertaining the area of the field in which an object is located, the system is speeded up... | 09/08/1992 |
| 5134468 | Optical apparatus for varying the lengths of optical path of color component light beams An optical apparatus comprising an objective lens for producing a light bundle, a color separation prism receptive of the light bundle for producing two or more component light beams, two or more solid-state image sensors arranged behind the respective sp... | 07/28/1992 |
| 5121152 | Autofocus system for cameras The present invention relates to an autofocus system for cameras with a separator (4) to split the object (2) in an autofocus measuring field (3) viewed through the camera lens (1) into two beams to determine the distance of the object (2) from the film p... | 06/09/1992 |
| 5097282 | Automatic focusing apparatus The disclosure relates to an automatic focusing apparatus for use in a photographic camera and, in a particular video-camera. The apparatus includes a defocus amount detecting device such as charged coupled devices (CCD) array for detecting the defocus am... | 03/17/1992 |
| 5068738 | Phase-difference detector using an analog arithmetic correlation device A phase-difference detector for use with an auto-focus detecting apparatus of a camera, the detector is capable of performing an arithmetic correlation process for detecting a phase-difference at a high speed with high accuracy. This detector uses an anal... | 11/26/1991 |
| 5068735 | System for controlling the aiming direction, focus, zooming, and/or position of a television camera A system for controlling the aiming direction, focus, zooming and/or position of a television camera comprises servo-mechanisms for controlling the tilting, panning and lifting of a panning head on which a television camera is mounted, and servo-mechanism... | 11/26/1991 |
| 5047847 | Endoscope using liquid crystal devices different in the response frequency in the image forming optical system At least a part of an image forming optical system is formed of a liquid crystal assembly consisting of a plurality of liquid crystals having a refractive index anisotropy and having different response frequencies of molecule orientation so that the trans... | 09/10/1991 |
| 5032919 | Video camera focusing system To focus the video camera, the CCD image pickup device moves relative to the lens mount which is maintained fixed in relation to the camera body. The lens mount includes a cylindrical bearing surface on which symmetrically spaced carrier bearings slide wh... | 07/16/1991 |
| 5027202 | Picture transmission system of optical wave guide guided missiles The invention relates to a picture transmission system of a guided missile which is connected with a ground facility by way of an optical wave guide. This system is arranged that, without any increase of the transmission band width of the optical wave gui... | 06/25/1991 |
| 4978983 | Composite camera with automatic parallax correction A camera unit is composed of a first camera for photochemical image reproduction and a second, electronic camera. The first camera is provided with a first lens having a first image registration region. The image which is projected onto image plane of the... | 12/18/1990 |
| 4965443 | Focus detection apparatus using neural network means An optical image transmitted through a photographing lens is incident on a light-receiving unit of a two-dimensional matrix. An output from the light-receiving unit is input to a first arithmetic logic unit, and the first arithmetic logic unit calculates ... | 10/23/1990 |
| 4956714 | Image pickup apparatus An image pickup apparatus comprising: a charge storage member being movable; a photo-charge conversion unit comprising a photoconductive layer member having a transparent electrode, an electrode, and means for applying an electric field between said trans... | 09/11/1990 |
| 4953029 | Interchangeable film back or still video back still camera system A still carmera system is capable of being loaded with a film back or a still video back selectably or of changing focal length information of an objective lens in use so as to correspond to the image size of the still video back, whereby when loaded with... | 08/28/1990 |
| 4935762 | Auto/manual switching circuit An auto/manual changing switch cirucit for an auto-focus circuit which allows the changing of states by a one touch system. To change a video camera from an auto-focus state to a manual focus state, a switch is activated. While in this manual state, the a... | 06/19/1990 |
| 4935763 | Camera having a zoom lens unit When a variator lens is driven to effect zooming, focal length information of a zoom lens unit, a zooming direction and a defocus amount are detector. Integration in CCD for focus detection is regulated in a short time during zooming and a cycle of focus ... | 06/19/1990 |
| 4928170 | Automatic focus control for an image magnification system An automatic focus control system and related method of operation are provided for use in a closed circuit television system of the type designed for magnification of written images and the like, thereby permitting facilitated reading or viewing by person... | 05/22/1990 |
| 4912496 | Automatic focussing adjusting device An automatic focussing adjusting device which controls properly an integration time necessary to integrate the amount of light received by a CCD line sensor for measuring the light of an object to detect a focal position. In the automatic focussing adjust... | 03/27/1990 |
| 4912500 | Single lens reflex camera For a single lens reflex camera in which an image bearing beam from the photographic objective is reflected by a movable mirror to the finder system, techniques are disclosed that the mirror is made half-reflective, and the transmitted light of the mirror... | 03/27/1990 |
| 4882601 | Camera with an automatic focusing device A camera with an automatic focusing device has an objective lens mounted on a camera. An image formed by the objective lens is divided into a plurality of zones. In each zone, a brightness distribution is obtained so as to detect a rough focusing conditio... | 11/21/1989 |
| 4855838 | Remotely controlled pan and tilt television camera An elongated remotely controlled pan and tilt television camera, ideally suitable for inspecting pipeline interiors, is able to be constructed with extremely small transverse dimensions due to compact packaging of control mechanisms disposed in the camera... | 08/08/1989 |
| 4851698 | Telecentric image forming system with a row camera A telecentric image forming system for a linear zone on the surface of an object comprises a diode row camera with a telecentric imaging system at the object side. In the present embodiment the pupil of the normal, non-telecentric, camera objective (15) i... | 07/25/1989 |
| 4829374 | Surface inspection apparatus A surface inspection apparatus having a microscope and a television camera is disclosed. The inspection apparatus samples a signal portion from a horizontal scanning portions of the video signal produced by the television camera, compares the instantaneou... | 05/09/1989 |
| 4796090 | Reconnaissance system The invention relates to improvements in airborne, marine, and/or moving vehicle-carried, stabilized high resolution long-range surveillance systems, which are based on a stabilized platform, TV cameras and a lens with a relatively long focal length. The ... | 01/03/1989 |
| 4794417 | Photographing apparatus According to a photographing apparatus of this invention, tilt angles of a photographing optical system at least at two points on a plane and a lens position in an in-focus state or in a zooming state are prestored before a photographing operation. When a... | 12/27/1988 |
