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| Number | Title | Issue Date |
| 8010414 | Method for online purchasing using printed form A method of effecting a purchasing transaction includes providing a printed form having printed thereon coded data distributed over an area; capturing an image of the form using a sensing device, the captured image showing a portion of the coded data; decoding at le... | 08/30/2011 |
| 7246364 | Optical pickup device Light from a light source is led to a condensing lens by a light leading unit and is condensed onto an optical recording medium by the condensing lens. Light reflected from the optical recording medium is led to a light sensing device through a spot adjustment lens ... | 07/17/2007 |
| 7194838 | Reticle for telescopic gunsight and method of using A gunsight reticle defines a system of dimensioned indicia spaced at specific separations to improve aiming accuracy of a gun. The indicia may include perpendicularly intersecting center vertical and center horizontal hairlines, and four (or more or less) horizontal... | 03/27/2007 |
| 7100320 | Reticule The present invention is a reticule featuring both rapid close quarters target acquisition and precise distance shooting functionality. The reticule features a broad central aiming ring and four sets of aiming point indicating dots. The lowest set comprises dots of ... | 09/05/2006 |
| 7069684 | Reticle for telescopic gunsight and method for using A gunsight reticle defines a system of dimensioned indicia spaced at specific separations to improve aiming accuracy of a gun. The indicia may include perpendicularly intersecting center vertical and center horizontal hairlines, and four (or more or less) horizontal... | 07/04/2006 |
| 6650235 | Method and apparatus for recognizing object A transmission wave is applied to a predetermined range in a width-wise direction of a subject vehicle. Objects located ahead of the subject vehicle are recognized on the basis of reflected waves which result from reflections of the transmission wave. The... | 11/18/2003 |
| 6636296 | Range finder A low-cost-of-manufacture, portable, capable-of-adjustment range finder for estimating distances between the user and one or more objects with a known width, height or other linear dimension (such as a cup on a putting green, a target for target shooting,... | 10/21/2003 |
| 6583860 | Range finder A range finder includes a light source for emitting a light beam to an object to be measured, a detector for detecting a reflected light from the object, a measuring part for calculating the distance to the object on the basis of the reflected light detec... | 06/24/2003 |
| 6526077 | Line-scan laser beam profiler Power density profile of a laser beam is characterized by scanning a thin thread across the beam and registering the intensity of radiation scattered from the thread. The diameter of the beam along the scan direction is determined by measuring the width o... | 02/25/2003 |
| 6466306 | Night convoy maneuver adapter A reticle adapter (100) for judging distance from an object (12) is used with a viewing apparatus (A) to detect relative positions of signals from at least two spaced apart marker devices (10) formed on a first object (12). An image of the relative positi... | 10/15/2002 |
| 6327028 | Night convoy maneuver system A distance judging system (S) includes at least two spaced apart marker devices (10) formed on a first object (12) and providing a signal (14). A viewer (A) is adapted to detect relative position of the signals (14) from the markers (10), and create an im... | 12/04/2001 |
| 6275337 | Method for viewing through reflections from a reflective surface without affecting point of impact Featured is a method and device that minimize the effects of reflections from a transparent surface while viewing an object or target area through such reflective surface and which accomplishes this without affecting the crucially important accuracy of sh... | 08/14/2001 |
| 6108497 | Standard measurement scale and markers for defining standard measurement scale A standard scale used in a photogrammetric measurement system has a polygonal plate having three apexes which are arranged to define a reference plane, where each of the apexes defines a reference point. Another standard scale has a light-guide plate memb... | 08/22/2000 |
| 6005656 | Flip-up range finder device A range finder for a cap for determining the distance to a golf flag. The range finder has a cap coupling portion having a thin shell portion adapted to conform with the cap and a pair of "u" shaped portions for hooking around an edge of the cap. A base i... | 12/21/1999 |
| 5822048 | Flip-up range finder device A range finder for a cap for determining the distance to a golf flag. The range finder has a cap coupling portion having a thin shell portion adapted to conform with the cap and a pair of "u" shaped portions for hooking around an edge of the cap. A base i... | 10/13/1998 |
| 5644442 | Spherical rear view mirror target marking system and method A system to overcome the visual aberration of spherical automotive rear view mirrors, related to the distance between vehicles, requires no measurement or mathematical skills. The system includes means for visually determining the curvature of a mirror, a... | 07/01/1997 |
| 5616903 | Electronic rangefinder apparatus A rangefinder for scopes and binoculars in which a transparent display has a scale or other height-determining member to determine the height of the object viewed through the display and compare with a known object height selectively displayed on the same... | 04/01/1997 |
| 5418610 | Distance indicating mirror A vehicle mirror having an image reflecting surface and a distance indicating light reflective indicia of contrasting reflectivity to the image reflecting surface, the indicia being located in such a position on the mirror that when a just passed vehicle ... | 05/23/1995 |
| 5020902 | Rangefinder with heads-up display A method and apparatus for performing range finding and a unique heads-up display for use in such apparatus are provided. Range finding is performed by viewing an object of known height at the location to which a range determination is being made through ... | 06/04/1991 |
| 4965439 | Microcontroller-controlled device for surveying, rangefinding and trajectory compensation A microcomputer-controlled optical instrument comprises an objective lens, an ocular lens, and an erector lens assembly mounted to pivot between the objective lens and the ocular lens. A first image plane is defined by the objective lens, and a second pla... | 10/23/1990 |
| 4953972 | Range dispersion sensor A range dispersion sensor operative to detect objects of a preselected height "h" operates on quarterwave interference principles. Electromagnetic energy is modulated at a first frequency f1 such that objects of the preselected height h dispose... | 09/04/1990 |
| 4893922 | Measurement system and measurement method In the measurement system for the measurement of an object (2), the object 2) is provided with two retro-reflectors (3, 4) disposed at a known spacing. A measuring device (1) exhibits a light source (5), a video camera (7, 8) and an arrangement (9) which c... | 01/16/1990 |
| 4787739 | Range finder A range finder for optically or electronically measuring distance from an object by comparison of a known curvilinear form or spectrum of points with the object being measured. The range finder, whether optical or electronic, is provided with different si... | 11/29/1988 |
| 4617741 | Electronic rangefinder for archery A rangefinding device wherein a series of movable lines are created electronically via the use of a liquid crystal display and associated circuitry. When a target of a known size, such as a deer, is "bracketed" exactly between two of these lines, the corr... | 10/21/1986 |
| 4561204 | Reticle display for small arms A separate opaque reticle display attachment for a rifle or the like equipped with a telescopic sight. The user sights through the telescopic sight with his bore axis eye while simultaneously viewing an opaque reticle display screen which is aligned with ... | 12/31/1985 |
| 4531052 | Microcomputer-controlled optical apparatus for surveying, rangefinding and trajectory-compensating functions A microcomputer controlled optical device for determining the distance to objects of known or estimable size which is programmed to control a plurality of associated electronic indicator elements the images of which are optically superimposed upon the ima... | 07/23/1985 |
| 4514907 | Bow and arrow sighting device A bow and arrow sighting device for attachment to the bow and comprised of a range finder of the type having a manually rotatable range adjustment wheel which in one embodiment is coupled by gears to a cylindrical cam in operative engagement with a cam fo... | 05/07/1985 |
| 4500169 | Cosmetic and observer line of sight mirror A cosmetic and observer line of sight mirror which includes a mirror having two sets of orthogonal lines with one set substantially horizontal and disposed over the face of the mirror or about the edge thereof to facilitate application of cosmetics to pro... | 02/19/1985 |
| 4482210 | Safety mirror An automobile safety mirror is disclosed which is fabricated of laminated safety glass construction. Front and rear glass panels sandwich a layer of colored plastic therebetween and a suitable mirror surface is applied to the rear of the rear glass panel.... | 11/13/1984 |
| 4389791 | Range-finding telescopic sight A telescopic sight provides means for determining the range of a target of known size and for compensating for predetermined bullet drop over the target range. Reticles are fixed in both the front and rear focal planes of the sight, and first screw means,... | 06/28/1983 |
| 4124299 | Method and apparatus for surveying clearances on railway tracks A method of comparing circumferential shapes, particularly the outer circumference of a desired clearance wth the real clearance between obstacles arranged alongside a railway track, for example, signalling posts, overhead structures and quay walls, where... | 11/07/1978 |
| 4044377 | Video target locator A closed circuit TV camera with a fixed focus lens, is used to measure the vertical displacement from and longitudinal distance from an industrial robot arm to checkered-row target pattern, i.e., a row of alternate black and white squares. The pattern is ... | 08/23/1977 |
| 3999853 | Optical range finder An optical range finder is described which makes use of a variable length reference line juxtaposed on a view of a distant object whose height, width or other dimension is known. The user varies the reference line until it matches the known dimension. At ... | 12/28/1976 |
| 3948587 | Reticle and telescopic gunsight system Disclosed are telescopic gunsights for aiding shooters to achieve proper "hold-over" when shooting at targets of estimatable heights at long ranges. The reticles in the preferred telescopic gunsights comprise two or more superjacent target-spanning and ai... | 04/06/1976 |
