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| Number | Title | Issue Date |
| 7626760 | Top angle focus scope A rifle scope has a front end receiving light and a rear end passing light to the user eye. The rifle scope has an elevation adjustment; an inside body is hollow and tubular and fitting inside a middle body which is also hollow and tubular shaped and a top angle foc... | 12/01/2009 |
| 7372637 | Focusing unit and optical device A focusing mechanism allowing a user to adjust the focus from infinity to a close distance rapidly and precisely, and an optical device utilizing such a focusing mechanism. The focusing unit includes an optical member movable along an optical axis of an optical syst... | 05/13/2008 |
| 7369306 | Image reversion system, ancillary ophthalmoscopy module and surgical microscope The invention relates to an image reversion system (500) which enables an image reversion and beam transposition of a plurality of observation beam paths (503a, 503b, 504a and 504b) to be carried out sim... | 05/06/2008 |
| 7359114 | Clip-on night vision device A night viewer (10) is adaptable to generate an enhanced image suitable for viewing through an optical scope (16). An input end (18) of the viewer (10) receives the image to be enhanced through an objective lens (20). An image enha... | 04/15/2008 |
| 7342647 | Compact laser altimeter system A laser-based altimeter for use on-board an aircraft comprises: a first housing including a hollow cavity and an exit aperture, and a second housing including a hollow cavity and an entrance aperture. A laser source and a plurality of first optical elements are fixe... | 03/11/2008 |
| 7277223 | Apparatus and methods for focusing and collimating telescopes A telescope capable of motorized focus and/or collimation. The telescope includes control electronics capable of correcting the focus and/or collimation based on identified information, such as, for example, information about optical or other elements of the telesco... | 10/02/2007 |
| 7259910 | Focal device for a telescope A focal device for a telescope includes an eyepiece tube, a main body, a fixing washer, a direction restricting member, a focus adjusting ring, a focus adjusting tube, an eyepiece, an eyepiece clamping member and a tightening ring. The eyepiece-clamping member is fi... | 08/21/2007 |
| 7251073 | Pair of binoculars The invention aims at providing a pair of binoculars making it possible to easily perform a focusing operation and a diopter adjustment, and efficiently perform an assembling operation. The present invention provides a pair of binoculars having a pair of supporters ... | 07/31/2007 |
| 7125126 | Eye cup adjustment device for optical apparatus such as binoculars An eyepiece member comprises an eye cup provided on the outer circumference of an eyepiece barrel that holds an eyepiece lens, the eye cup being movable relative to the eyepiece barrel along the direction of the optical axis of the eyepiece lens, and a positioning m... | 10/24/2006 |
| 7088506 | Compact spotting scope with side focus control A compact spotting scope includes a housing with an outer surface having a grasping region sized and shaped to fit in the palm of a user's hand so that the spotting scope can be held at eye level with one hand in an ergonomic arm and wrist position for steady suppor... | 08/08/2006 |
| 7031057 | Binoculars Binoculars. First and second posts are movably disposed in first and second guide slots respectively. A first resilient member is disposed between a first abutting surface and a cover, and the first post slides in the first guide slot facilitating a first barrel to ... | 04/18/2006 |
| 7012692 | Photothermal conversion spectroscopic analysis method, and photothermal conversion spectroscopic analysis apparatus for carrying out the method It is an object to provide a photothermal conversion spectroscopic analysis method that enables measurement to be carried out with high sensitivity, and a photothermal conversion spectroscopic analysis apparatus that carries out the method. The photothermal conversi... | 03/14/2006 |
| 6960749 | Automatic focusing mechanism for mounting on measuring device An automatic focusing mechanism for mounting on a measuring device has a telescope for sighting a leveling rod with pattern marks marked thereon at an equal pitch between each mark, and a photoelectric device for converting an image sighted by the telescope into an ... | 11/01/2005 |
| 6945657 | Surveying instrument A surveying instrument includes a sighting telescope having an objective lens and an eyepiece; an erecting optical system functioning so that an image formed by said objective lens is viewed as an erect image through the eyepiece; and a light shield device, position... | 09/20/2005 |
| 6891141 | Surveying instrument having an optical distance meter and an autofocus system, and a surveying instrument having a detachable autofocus system A surveying instrument includes a sighting telescope optical system, a distance measuring system which outputs first data, a phase detection autofocus system which and outputs second data, and an AF driver which moves a focusing lens of the sighting telescope optica... | 05/10/2005 |
| 6734410 | Surveying instrument having an optical distance meter and an autofocus system, and a surveying instrument having a detachable autofocus system A surveying instrument includes a sighting telescope optical system, a distance measuring system which outputs first data, a phase detection autofocus system which and outputs second data, and an AF driver which moves a focusing lens of the sighting telescope optica... | 05/11/2004 |
| 6580555 | Adjustable eyepiece for a viewing device An adjustable eyepiece for a viewing device includes a diopter ring with at least one cam follower mounted to the diopter ring and a cam sleeve axially aligned with the diopter ring. The cam sleeve is positioned around a tubular portion of the diopter rin... | 06/17/2003 |
| 6556283 | Electronic distance meter An electronic distance meter includes a sighting telescope having an objective lens for sighting an object; a reflection member positioned behind the objective lens; an optical distance meter which includes a light-transmitting optical system for transmit... | 04/29/2003 |
| 6266911 | Autofocusing apparatus of a sighting telescope An autofocusing apparatus of a telescope, includes: a telescopic optical system which includes a focusing lens group guided along an optical axis; a focus detector which detects a focus state of the telescopic optical system; a lens driver which drives th... | 07/31/2001 |
| 6108129 | Micro focuser A secondary focuser which facilitates minute and measured incremental changes of the focal length within a limited travel distance is disclosed. The secondary focuser is used to micro focus telescopes for astro photography. A method of constructing the mi... | 08/22/2000 |
| 6057960 | Modular infrared Kepler telescope The invention is directed to an infrared Kepler telescope which includes an objective defining an optical axis and including a positive front group and a negative rear group all arranged on the optical axis. The objective further includes an interchangeab... | 05/02/2000 |
| 6014253 | Binocular including focus and diopter adjustment of different lens groups A binocular includes two telescope systems. Each telescope system includes an objective system, an erecting system, and an eyepiece system. The binocular also includes a focus adjusting actuator and a focus adjusting knob, as well as a diopter correction ... | 01/11/2000 |
| 5923468 | Surveying instrument having an automatic focusing device A surveying instrument is provided having a sighting telescope and a distance measuring device. The sighting telescope has a focusing lens group which is moveable to focus an object to be measured. The distance measuring device measures a distance between... | 07/13/1999 |
| 5886815 | Binoculars with dioptric and focus adjustment Binoculars equipped with focus adjustment nut 53 to which left object lens holder 42 of the left optical system is linked, dioptric adjustment nut 61 to which right object lens holder 41 is linked and which is attached such that it may move relative to fo... | 03/23/1999 |
| 5877892 | Focus detecting apparatus for a telescope system An automatic focus detecting telescope which offers easy maintenance and which, when applied to a surveying instrument such as an auto-level, provides easy detachment and attachment of an optical horizontal compensation system. Even if the optical horizon... | 03/02/1999 |
| 5838492 | Method and apparatus for a binocular optical system An optical system which is telecentric to an image, having an objective optical system for forming a model image based on rays from the model magnified by a predetermined ratio to an actual object. An eyepiece lens is included for observing the model imag... | 11/17/1998 |
| 5796517 | Inner focus type telescope An inner focus type telescope includes a sighting objective lens, a focusing lens, a horizon compensating optical system, a focal plane, and an eyepiece through which an object image formed on the focal plane can be viewed, arranged in this order from the... | 08/18/1998 |
| 5572361 | Binocular system with automatic diopter power adjustment In a telescope, the adjustment order is limited so that dioptric power adjustment is made after adjustment of a distance between a pair of optical systems is completed. A pupil distance and a dioptric power correction amount are stored in a memory for eve... | 11/05/1996 |
| 5329347 | Multifunction coaxial objective system for a rangefinder There is provided a multifunction coaxial objective system (16) for a laser rangefinder (10). The transmitter, receiver, and viewing optical systems have a common, coaxial optical axis (48). The multifunction coaxial objective system (16) includes lenses ... | 07/12/1994 |
| 5311354 | Telescope In a telescope according to the present invention, defocus amount of an optical system constituting the telescope is calculated; whether or not the defocus amount is within a predetermined in-focus range obtained from a focal point adjusting ability of hu... | 05/10/1994 |
| 4998357 | Binocular telescopr with radially acting compensating spring The binocular telescope has in each barrel a focusing member (internal focusing) which is joined to a support guided on a guide rod. When a control knob is actuated, this support is displaced axially by means of a transmission bar. A driving pin, which en... | 03/12/1991 |
| 4650297 | Binocular optical system with automatic focusing mechanism Auto-focus binoculars in which only the center portion of the image viewed through the ocular lenses of the binoculars is used for focusing. Light admitting windows are formed adjacent right and left objective lenses of the binoculars. Light from the ligh... | 03/17/1987 |
| 4397520 | Afocal refractor telescopes An afocal refractor telescope (10) is formed by a fixed focus achromatic objective system (11) and a fixed focus eyepiece system (12) aligned on a common optical axis (13), the objective system (11) being formed by two lens elements (C, D) and the eyepiec... | 08/09/1983 |
| 4317029 | Optics frame assembly An optics frame for use in optical character reading devices has a reflector and lens tube assembly packaged to permit the integration of the optics system and the electronic components so that they become one unit. The reflector and lens tube assembly is... | 02/23/1982 |
| 4023189 | Wide angle fundus illumination and photography apparatus A wide angle instrument for illuminating, observing and photographing the fundus of the eye is provided. The instrument has a focus tube containing spaced decollimating and objective lenses with an adjustable aperture diaphragm positioned therebetween, wh... | 05/10/1977 |
