Double Holder Patents (Class 396/526)
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Patent number: 6954311Abstract: Lenses 1, 2, and 4 as an optical element having a power are cemented together in an optical axis direction. An optical filter 3 is sandwiched between the lenses 2 and 4. Optical elements neighboring each other are cemented together such that a positioning section which is disposed on a side surface of the optical element disposes an appropriate space in an optical axis direction and optical axes of optical elements align in a direction orthogonal to the optical axis. The cemented optical element arrays are cemented together and cut at a line in a cutting operation. By doing this, it is possible to manufacture a small image pickup lens unit, which can be used in an image pickup device, by mass-production and at a low cost.Type: GrantFiled: June 24, 2003Date of Patent: October 11, 2005Assignee: Olympus CorporationInventor: Takahiro Amanai
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Patent number: 6934096Abstract: There is provided an optical device which comprises a fixed barrel, a movable cam ring, and collars and abutments. The movable cam ring is shifted relative to the fixed barrel to move an optical unit, the movable cam ring being fitted to the fixed barrel. Collars and abutments can be engaged with each other when the movable cam ring is in a predetermined positional relationship with respect to the fixed barrel. The collars and abutments preventing the movable cam ring from being disengaged from the fixed barrel and displaced in a direction along an optical axis relative to the fixed barrel.Type: GrantFiled: July 22, 2003Date of Patent: August 23, 2005Assignee: Canon Kabushiki KaishaInventors: Shigeru Takeshita, Toshiyuki Yasuda
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Patent number: 6791766Abstract: A flange portion is provided to at least a part of the periphery at the center position in the direction of the optical axis of a lens. The lens is held with clamping members and a lens holding metallic part, with the flange portion pressed by the clamping members. The portion where the flange portion is provided, suffers no compressive strain and tensile strain due to the bending of the lens, and is a part of the periphery of a neutral plane, which is the farthest plane from the optical surface of the lens. Therefore, the influence of the clamping force on the flange portion acting on other portions of the lens is reduced to the utmost, and the deformation of the optical surface due to the force acting on the flange portion is reduced to a minimum. As a result, the deterioration of the optical properties of the lens can be suppressed to the utmost.Type: GrantFiled: September 30, 2002Date of Patent: September 14, 2004Assignee: Nikon CorporationInventor: Jin Nishikawa
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Patent number: 6735025Abstract: An image-forming device, especially an optical magnifying device, e.g., binoculars or a telescope, has an image influencing optical component, more specifically an eyepiece. The same is held by means of a holding device in such a way that the optical component is axially displaceable along the optical axis of the image-forming device. The holding device comprises a component holding element that is attached to and cannot move relative to the optical component, said component holding element having an adjustment marking, e.g., a dial with a plurality of individual markings reflecting the current axial position of the optical component. The holding device additionally has a marking member to accentuate at least one individual marking on the adjustment marking. With the aid of the marking member the axial position of the optical component can be marked prior to an axial readjustment of the same so that the axial readjustment can easily be reversed.Type: GrantFiled: January 29, 2003Date of Patent: May 11, 2004Assignee: Steiner-Optik GmbHInventor: Carl Steiner
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Patent number: 6721111Abstract: A lens guide mechanism includes a lens frame which supports a photographing lens group, the lens frame including a plurality of guide holes extending in a direction parallel with an optical axis; a support barrel in which the lens frame is provided; a gear holding member which is provided at a front end of the support barrel; a gear train which is held between the support barrel and the gear holding member, the gear train constituting a drive mechanism for the lens frame; and a plurality of linear movement guide rods provided in the gear holding member, which extend through the guide holes of the lens frame and support the lens frame to move linearly in the optical axis direction relative to the support barrel.Type: GrantFiled: March 20, 2002Date of Patent: April 13, 2004Assignee: PENTAX CorporationInventors: Hiroshi Nomura, Takamitsu Sasaki, Kazunori Ishizuka, Maiko Takashima
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Patent number: 6717753Abstract: There is provided an optical element which can be handled with ease and mounted on a supporting means for supporting it with high precision and efficiency in the course of manufacturing it, and also there is provided a method for manufacturing such an optical element as described above. A lens element 100 is an optical element which is mounted on a supporting substrate provided with a groove for mounting the lens element. The lens element 100 includes a handling portion 120, a side wall 162a which are brought into contact with the groove for mounting use, and a lens portion 180a. The thickness of the lens portion 180a in the optical axis direction thereof is able to be set arbitrarily.Type: GrantFiled: December 31, 2002Date of Patent: April 6, 2004Assignee: OKI Electric Industry Co., Ltd.Inventor: Hironori Sasaki
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Patent number: 6710947Abstract: A set of lens elements is assembled to form a lens by adjusting a first and a second lens element in a spaced apart optical relationship with respect to each other, then affixing the two elements in the spaced apart optical relationship by affixing a lens element holder to at least the second lens element. Further lens elements are assembled in turn and affixed in spaced apart optical relationship to the preceding lens elements to form a finished lens.Type: GrantFiled: February 10, 2003Date of Patent: March 23, 2004Assignee: Electro Optical Sciences, Inc.Inventors: Tomasz Momot, Adam Jacobs
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Patent number: 6693751Abstract: Disclosed is a member mounting structure and a member mounting apparatus for mounting a member such as a solid state image input unit in which mounting of the solid state image input unit can be achieved with high accuracy after positioning adjustment along five axes, yield of production can be increased, and at the same time, decrease of fixing force of the solid state image input unit after production (after adhesive material has been hardened) does not occur by means that positioning adjustment of the solid state image input unit along five axes is easily performed before adhering and fixing of the solid state image input unit.Type: GrantFiled: February 20, 2002Date of Patent: February 17, 2004Assignee: Ricoh Company, Ltd.Inventors: Yoshihiro Morii, Shigeru Fujita, Shigeo Kobayashi, Tatsuya Tsuyuki, Hiroshi Takemoto, Jun Ando
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Patent number: 6674584Abstract: An apparatus and method for housing an optical element are provided. A ring is configured with a symmetry that corresponds to that of the optical element and for bonding with the optical element on an optical surface at a periphery of the optical element. An axial retaining spring may be provided for securing the optical element within an optical-system assembly. The axial retaining spring includes axial constraint fingers to engage a subsequent optical component and structures adapted to apply a point load at selected locations on the optical element.Type: GrantFiled: July 3, 2001Date of Patent: January 6, 2004Assignee: PTS CorporationInventor: David Paul Anderson
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Patent number: 6671108Abstract: There is disclosed an optical apparatus in which a lens holding frame is assembled on a frame member so that the lens holding frame can move along a plane substantially vertical to the optical axis of first and second lenses, a pair of gaps is formed between the outer periphery of the lens holding frame and the inner periphery of the frame member via the optical axis in the X- and Y-axis directions, adjustment members are selectively inserted in the gaps, and the position of the lens holding frame to the frame member in the plane substantially vertical to the optical axis is set.Type: GrantFiled: May 13, 2002Date of Patent: December 30, 2003Assignee: Olympus Optical Co., Ltd.Inventors: Tamotsu Koiwai, Ai Midorikawa
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Patent number: 6667839Abstract: A device is used to hold an optical element, in particular one made of a crystalline material, in particular of CaF2, while the optical element is being coated, in particular by the vapor-deposition of at least one functional layer in a vacuum coating plant. The latter has a device for mounting the optical element, it being possible for the optical element to be heated in the vacuum coating plant via suitable radiation, in particular infrared radiation. An intermediate element which has a lower thermal absorption than the device for mounting the optical element is arranged between the device for mounting the optical element and the optical element.Type: GrantFiled: December 27, 2001Date of Patent: December 23, 2003Assignee: Carl Zeiss SMT AGInventors: Jürgen Hartmaier, Dietrich Klaassen, Thure Boehm, Bernhard Wergl, Michael Gerhard, Jens Spanuth, Ralf Kuschnereit, Peter Vogt, Harry Bauer
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Patent number: 6665132Abstract: The invention relates to an optical lens system (39) which is suitable for use in an optical scanning device (15) for reading and/or writing an optically scannable record carrier (9). The lens system comprises a first lens or objective lens (45) and a second lens or auxiliary lens (47) which is small in comparison with the first lens and which, in operation, is positioned between the first lens and the record carrier. The lenses are arranged in a lens holder (61). According to the invention, the lens holder (61) and one of the two lenses (45, 47) are manufactured as one integrated part (63) from a transparent synthetic material by means of a moulding process, and the other lens is arranged in the integrated part as a separate component, with a chamber (85) enclosed by the lens holder and the two lenses communicating with the environment of the lens system via an air vent connection (93). The lens system thus comprises only two parts to be assembled, so that the assembling process is considerably simplified.Type: GrantFiled: April 15, 2002Date of Patent: December 16, 2003Assignee: Koninklijke Philips Electronics N.V.Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Fransiscus Christiaan Van Dorst, Fransiscus Marinus Andrea Maria Van Gaal, Cornelius Antonius Nicolaas Maria Van Der Vleuten
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Patent number: 6657798Abstract: A method for selecting parts for N similar assemblies, each assembly comprising M parts, is presented. A number pm of physical characteristics for each part of the at least M×N parts is recorded, and a value that a group of parts would have if assembled into an assembly is computed until N groups of parts are selected, each group consisting of one part from each of the M groups of parts, and wherein no part is a member of more than one of the N groups of parts, and wherein the value for each group meets a criterion. The method is particularly useful in constructing lenses.Type: GrantFiled: February 10, 2003Date of Patent: December 2, 2003Assignee: Electo Optical Sciences, Inc.Inventors: Nikolajs Kabelevs, Tomasz Momot
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Patent number: 6639741Abstract: A holder (2) of projector lens (1) is provided with openings through which springs (3) pass. The shorter arm (4) of said spring (3) presses said lens (1) against said holder (2), the longer arm (5) is pressed to the circumferential mantle of said holder (2) and secured in this position by a bent cutout (7).Type: GrantFiled: May 15, 2002Date of Patent: October 28, 2003Assignee: Autopal s.r.o.Inventor: Josef Wagner
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Patent number: 6606206Abstract: There is provided an optical device which comprises a fixed barrel, a movable cam ring, and collars and abutments. The movable cam ring is shifted relative to the fixed barrel to move an optical unit, the movable cam ring being fitted to the fixed barrel. Collars and abutments can be engaged with each other when the movable cam ring is in a predetermined positional relationship with respect to the fixed barrel. The collars and abutments preventing the movable cam ring from being disengaged from the fixed barrel and displaced in a direction along an optical axis relative to the fixed barrel.Type: GrantFiled: May 15, 2001Date of Patent: August 12, 2003Assignee: Canon Kabushiki KaishaInventors: Shigeru Takeshita, Toshiyuki Yasuda
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Patent number: 6603613Abstract: A reflection mirror support structure, applied to support a reflection mirror of an optical scanner. Using three points or a single point and a line to construct a plane, projecting rib and projecting point are formed on a carrier to hold the reflection mirror. The image distortion caused by bending the reflection mirror and twist deformation because of structures not being parallel to each other is improved.Type: GrantFiled: August 27, 2001Date of Patent: August 5, 2003Assignee: Umax Data Systems, Inc.Inventor: Tsung-Yin Chen
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Patent number: 6590721Abstract: A lens support structure includes a tubular holding frame a flat holding surface orthogonal to a center axis of the frame, and a lens held within the holding frame with a planar part, orthogonal to the optical axis of an optically functioning surface, abutting the holding surface. Since the planar part of the lens abuts the flat holding surface, the lens can be moved in directions orthogonal to the optical axis to enable optical axis adjustment.Type: GrantFiled: March 25, 2002Date of Patent: July 8, 2003Assignee: Fuji Photo Optical Co., Ltd.Inventor: Kazuhiko Onda
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Patent number: 5980125Abstract: This invention relates to large, ie view-cameras and supplants the fixed conventional viewing screen by using instead a focusing frame partly or totally geometrically congruent with the sheetfilm holder for such a camera, said frame being temporarily inserted into this camera for focusing, the conventional sheetfilm-holder partition being replaced in the focusing frame of the invention by a transparent viewing screen of which the focusing surface faces the lens. In this manner the invention achieves coincidence, within a desired and optionally zero tolerance, of film emulsion plane and focusing surface and eliminates the errors related to uncertain positioning of the conventional viewing screen of a large-format camera.Type: GrantFiled: June 22, 1998Date of Patent: November 9, 1999Inventor: Harry Julich