Concave, Convex Combination Patents (Class 359/366)
  • Patent number: 10649190
    Abstract: This Cassegrain reflector 200 is provided with a primary mirror 201 and a secondary mirror 202 disposed coaxially with the primary mirror 201 and laterally supported by a plurality of supporting rods. The Cassegrain reflector 200 causes the light incident through an opening 212 formed along an axial line L of the primary mirror 201 to be reflected onto the secondary mirror 202, and then causes the light to be reflected onto the primary mirror 201 in order to emit the light toward a measurement position through an opening 231 formed on the side of the secondary mirror 202. A Cassegrain reflector retention mechanism 6 for retaining the Cassegrain reflector 200 is provided with a retainer 61 for retaining the Cassegrain reflector 200, and a rotation adjustment mechanism 60 for adjusting the rotational position of the plurality of supporting rods.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: May 12, 2020
    Assignee: Shimadzu Corporation
    Inventor: Atsushi Ueda
  • Patent number: 10408765
    Abstract: A magnifying imaging optical unit serves for inspecting lithography masks which are used in EUV projection exposure. The imaging optical unit comprises at least two mirrors (M1 to M4) which can be displaced relative to one another for changing a magnification value. According to a further aspect, a magnifying imaging optical unit comprises at least one mirror (M1 to M4) and a magnification value, which can be changed by displacement of at least two mirrors (M1 to M4) relative to one another. Here, the magnification value can be changed between a minimum magnification value, which is greater than 100, and a maximum magnification value, which is greater than 200. An imaging optical unit emerges, which can be adapted to, in particular, mask structures with different sizes.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: September 10, 2019
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Hans-Juergen Mann
  • Patent number: 10386619
    Abstract: A oblique camera lens includes: a primary mirror configured to reflect a light ray to form a first reflected light; a secondary mirror located on a first path of light reflected from the primary mirror and configured to reflect the first reflected light to form a second reflected light; a tertiary mirror located on a second path of light reflected from the secondary mirror and configured to reflect the second reflected light to form a third reflected light; and an image sensor located on a third path of light reflected from the tertiary mirror and configured to receive the third reflected light; wherein each of the first reflecting surface and the third reflecting surface is a sixth order xy polynomial freeform surface; and a field of view of oblique camera lens in an Y-axis direction is greater or equal to 35° and less than or equal to 65°.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 20, 2019
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Wei Hou, Guo-Fan Jin, Shou-Shan Fan
  • Patent number: 10302939
    Abstract: The present invention is compact and inexpensive, has good light efficiency, and enables a display image having a plurality of display distances to be displayed. A display emits projection light for displaying a display image at a predetermined position, and an image formation position adjusting mirror receives the projection light emitted from the display, performs conversion into a plurality of first projection light and second projection light that have different image formation distances by changing the image formation distance of the projection light that is at least part of the incident projection light, and reflects the first projection light and the second projection light to project the first projection light and the second projection light onto a first screen and a second screen.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: May 28, 2019
    Assignee: NIPPON SEIKI CO., LTD.
    Inventors: Kazuo Morohashi, Megumi Sato, Yuichi Takahashi, Kazuya Matsuura
  • Patent number: 10261296
    Abstract: A reflective imager design that is telecentric in image space, or equivalently telecentric at an image plane, or equivalently having an exit pupil located substantially at infinity, while also having an external entrance pupil and a high throughput or fast optical speed is described.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: April 16, 2019
    Assignee: WAVEFRONT RESEARCH, INC.
    Inventor: Thomas A. Mitchell
  • Patent number: 10234331
    Abstract: The present disclosure concerns a monolithic spectrometer for spectrally resolving light. The spectrometer comprises a body of solid material having optical surfaces arranged to guide the light along an optical path inside the body. A collimating surface and focusing surface are part of a single surface having a continuous optically functional shape. The surfaces of the body are arranged to have a third or fourth part of the optical path between a grating surface and an exit surface cross with a first part of the optical path between an entry surface and a collimating surface.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: March 19, 2019
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Daniel Perez Calero, James Peter Robert Day, Tom Duivenvoorde, Marijn Sandtke
  • Patent number: 10197799
    Abstract: A method for designing a oblique camera lens comprising: step (S1), establishing an initial system, the initial system comprises a primary mirror initial structure, a secondary mirror initial structure, and a tertiary mirror initial structure; step (S2), building a new image relationship; step (S3), keeping the primary mirror initial structure and the secondary mirror initial structure unchanged; selecting a plurality of first feature rays; step (S4), keeping the secondary mirror initial structure and the tertiary mirror unchanged; selecting a plurality of fields and a plurality of second feature rays.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: February 5, 2019
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wei Hou, Jun Zhu, Guo-Fan Jin, Shou-Shan Fan
  • Patent number: 10110799
    Abstract: An imaging device includes an imaging optical system that includes a first optical system and a second optical system having independent characteristics; an imaging element that includes plural light-receiving sensors that pupil-split light passed through a corresponding optical system among the first optical system and the second optical system to receive the light; an image generation unit that generates a first captured image from an imaging signal output from the light-receiving sensors corresponding to the first optical system and generates a second captured image from an imaging signal output from the light-receiving sensors corresponding to the second optical system; a focus adjustment unit that adjusts a focus state of each of the first optical system and the second optical system in an independent manner; and a focus controller that controls the focus adjustment unit based on importance degree information.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: October 23, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Shuji Ono
  • Patent number: 10108001
    Abstract: Systems and methods for providing a wider FOV for a telescope system are disclosed. In one embodiment, a telescope includes a primary mirror having an orifice, where an optical path originates from an object positioned in front of the primary mirror and reflects off the primary mirror. A secondary mirror is disposed adjacent to the primary mirror, where the optical path reflects off the secondary mirror and passes through the orifice in the primary mirror. The telescope includes a set of extended field corrector optics disposed along the optical path, the extended field corrector optics positioned to reflect light incident from the secondary mirror, where the set of extended field corrector optics includes two corrector mirrors. A tertiary mirror is disposed along the optical path and adjacent to the extended field corrector optics, the tertiary mirror positioned to reflect the light incident from the extended field corrector optics.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: October 23, 2018
    Assignee: DRS Network & Imaging Systems, LLC
    Inventor: Harvey M. Spencer
  • Patent number: 10077971
    Abstract: An optical system and method comprising refracting light with a pair of Risley prisms and employing a line-of-sight control unit to adjust the pair.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: September 18, 2018
    Assignee: Lockheed Martin Corporation
    Inventors: Gene D. Tener, Andrew H. Hawkins
  • Patent number: 10067325
    Abstract: The present invention provides a projection optical system including a first concave reflecting surface, a first convex reflecting surface, a second concave reflecting surface, and a third concave reflecting surface, wherein the first concave reflecting surface, the first convex reflecting surface, the second concave reflecting surface, and the third concave reflecting surface are arranged such that light from an object plane forms an image on an image plane by being reflected by the first concave reflecting surface, the first convex reflecting surface, the second concave reflecting surface, the first convex reflecting surface, and the third concave reflecting surface in an order named.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 4, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Michio Kono, Kiyoshi Fukami, Ryosuke Fukuoka
  • Patent number: 10054774
    Abstract: A five-mirror all-reflective afocal anastigmat. In one example, a five mirror afocal anastigmat includes five mirrors arranged to sequentially reflect from one another electromagnetic radiation received via a system entrance pupil to produce a collimated output beam of the electromagnetic radiation at a system exit pupil, the five mirrors consisting of three positive-powered mirrors and two negative-powered mirrors, wherein optical powers of the five mirrors are balanced to achieve a flat field condition at the system exit pupil.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: August 21, 2018
    Assignee: RAYTHEON COMPANY
    Inventor: Lacy G. Cook
  • Patent number: 9864179
    Abstract: An iris recognition lens system including a first lens and a second lens disposed on an optical axis and sequentially from an object to take an image of an iris and a pupil. A front part of the first lens includes a reflecting area in a central portion and a transmitting area in a circumferential portion. A rear part of the first lens includes a concave transmitting area in a central portion and a reflecting area in a circumferential portion. The second lens is disposed at a rear of the transmitting area in the central portion of the rear part of the first lens. A plurality of reflecting areas and a plurality of transmitting areas are provided in a single lens in order to reduce the length of the lens and increase a focal length, thereby reducing the length of the entire iris recognition lens system.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: January 9, 2018
    Assignee: SEKONIX CO., LTD.
    Inventors: Soon Chul Choi, Chang S. Jegal, Yang S. Kim, Young J. Lee
  • Patent number: 9846298
    Abstract: An off-axis three-mirror optical system with freeform surfaces comprised an aperture, a primary mirror, a secondary mirror, a tertiary mirror, and a detector. The aperture is located on an incident light path. The primary mirror is located on an aperture side. The secondary mirror is located on a primary mirror reflected light path. The tertiary mirror is located on a secondary mirror reflected light path. The detector located on a tertiary mirror reflected light path. The primary mirror and the tertiary mirror have a same fifth-order polynomial freeform surface expression. The primary mirror reflected light path, the secondary mirror reflected light path and the tertiary mirror reflected light path overlap with each other.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: December 19, 2017
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Tong Yang, Guo-Fan Jin, Shou-Shan Fan
  • Patent number: 9841161
    Abstract: There is provided a lens for a light emitter which includes: a bottom surface; an incident surface connected to the bottom surface at a central region of the bottom surface and disposed on or above a light source to allow light emitted from the light source to be made incident thereto and travel in an interior of the lens; and an output surface connected to the bottom surface at an edge of the bottom surface and configured to allow the light which has traveled in the interior of the lens to be emitted outwardly therefrom, wherein the central region of the bottom surface protrudes with respect to the other region of the bottom surface.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 12, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won Soo Ji, Sung A Choi, Sang Woo Ha, Tetsuo Ariyoshi
  • Patent number: 9823453
    Abstract: A catadioptric light-field lens has a replaceable micro-mirror array including a plurality of micro-mirrors arranged in concentric rings; a light incidence region formed around the micro-mirror array; a main mirror which is configured to reflect light incident via the light incidence region and concentrate the light at the micro-mirror array; and a light exit region which is formed through the center portion of the main mirror to face the micro-mirror array.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: November 21, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-ho Lee, Tae-hee Lee, Hee-chul Han
  • Patent number: 9684227
    Abstract: A housing assembly for a panoramic camera provides a protective housing that the camera can be placed in, and removed from, and which substantially reduces or eliminates undesirable second order reflections that would otherwise occur due to the presence of the additional optical layers of a transparent housing member and the gap between the transparent housing member and the cylindrical lens of the camera. Sealing members form a seal such that the concentric gap between the transparent housing member and the cylindrical lens can be filled with transparent liquid, thereby changing the optical properties of the system formed by the cylindrical lens, gap, and transparent housing member.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: June 20, 2017
    Assignee: HOYOS VSN CORP.
    Inventors: Sybren D. Smith, Raymond Glenn Dubois, Jr., William H. Robertson, Jr.
  • Patent number: 9568718
    Abstract: A catadioptric lens system includes: a first lens group including a concave mirror and a convex mirror and having positive refractive power; a second lens group having positive refractive power; and a third lens group having negative refractive power, the first to third lens groups being provided, in order, on a light path of incident light and in a direction of travel of the incident light.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: February 14, 2017
    Assignee: SONY CORPORATION
    Inventors: Kodai Nagamatsu, Takeshi Hatakeyama
  • Patent number: 9541842
    Abstract: A reflective imaging optical system which forms, on a second plane, an image of a pattern arranged on a first plane and illuminated with light from an illumination optical system includes a plurality of reflecting mirrors including first and second reflecting mirrors by which the light reflected by the first plane is reflected first, second, respectively. An area on the first plane illuminated with the light from the illumination optical system is an illumination objective area, the illumination objective area is positioned on a predetermined side of an optical axis of the reflecting mirrors, and reflection areas of the first and second reflecting mirrors are positioned on the predetermined side of the optical axis of the reflecting mirrors; and the first and second reflecting mirrors are arranged so that an optical path of the light from the illumination optical system is positioned between the first and second reflecting mirrors.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: January 10, 2017
    Assignee: NIKON CORPORATION
    Inventor: Yoshio Kawabe
  • Patent number: 9523921
    Abstract: A lithographic projection apparatus is provided with a EUV radiation system that includes a source chamber, a supply constructed and arranged to supply a target material to a predetermined plasma formation position, an optical system formed by three or more mirrors arranged to establish a beam path extending to the target material when the target material is located at the predetermined plasma formation position, and a laser system constructed and arranged to provide a laser beam along the beam path for interaction with the target material to produce an EUV radiation-emitting plasma inside the chamber.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: December 20, 2016
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Antonius Johannes Josephus Van Dijsseldonk, Erik Roelof Loopstra
  • Patent number: 9507129
    Abstract: A camera system for a mobile device includes an array of compact catadioptric telescopes wherein at least some of the telescopes have a portion of their aperture truncated. At least some of the catadioptric telescopes in the array are tilted with respect to the system optical axis.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: November 29, 2016
    Assignee: Duke University
    Inventors: Daniel Marks, David Jones Brady, Nathan Adrian Hagen
  • Patent number: 9500958
    Abstract: An imaging optical system has a plurality of mirrors, which via a beam path for imaging light, image an object field in an object plane into an image field in an image plane. The imaging optical system has an exit pupil obscuration. At least one of the mirrors has no opening for passage of the imaging light. The fourth to last mirror in the beam path is concave, resulting in an imaging optical system having improved imaging properties without compromise in throughput.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: November 22, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Hans-Juergen Mann, David Shafer
  • Patent number: 9482853
    Abstract: An afocal telescope configured for back-scanned imagery including a three mirror anastigmat and an optical element positioned proximate an intermediate image plane of the three mirror anastigmat and configured to adjust distortion characteristics of the afocal telescope to control image wander on a focal plane array. The optical element may be a field correcting lens or mirror, for example.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: November 1, 2016
    Assignee: RAYTHEON COMPANY
    Inventor: David N. Sitter, Jr.
  • Patent number: 9482961
    Abstract: A microlithography projection optical system is disclosed. The system can include a plurality of optical elements arranged to image radiation having a wavelength ? from an object field in an object plane to an image field in an image plane. The plurality of optical elements can have an entrance pupil located more than 2.8 m from the object plane. A path of radiation through the optical system can be characterized by chief rays having an angle of 3° or more with respect to the normal to the object plane. This can allow the use of face shifting masks as objects to be imaged, in particular for EUV wavelengths.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: November 1, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Hans-Juergen Mann, Wilhelm Ulrich
  • Patent number: 9429742
    Abstract: An imaging system for use with an input light beam having power of 2 kW or greater and a predetermined intensity profile across at least on axis transverse to a propagation axis thereof, includes a mask disposed in relation to the input light beam, the mask configured to direct selected portions of the input light beam, and an optical relay disposed in relation to the mask and configured to reflectively direct the selected portions of the input light beam to a target.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: August 30, 2016
    Assignee: nLIGHT, Inc.
    Inventors: Robert J. Martinsen, Scott R. Karlsen, Scott A. Lerner
  • Patent number: 9423341
    Abstract: GEO satellites and other space objects are studied in daylight, twilight and at night using IR cameras in clusters of no more than three with programs for pointing the instruments at known locations of the GEO objects and satellites and receiving weak near IR signals. Detection instruments have minimal optical surfaces and simple optical paths directing IR through Kshort and combined Kshort and H near IR band filters in cryogenic assemblies. Large focal ratios and large apertures reduce the effect of sky brightness, lower noise and improve the target signal, increasing the noise to signal ratio. Sky background noise is reduced by co-adding hundreds of pixels, allowing for the faint IR signal integration of one second or more. Results are read after integration.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: August 23, 2016
    Assignee: Oceanit Laboratories, Inc.
    Inventors: Kevin T. C. Jim, Basil Scott
  • Patent number: 9423343
    Abstract: A membrane potential change detection device is provided with a reflection interference measurement light source, a holder which holds a transparent member on which cells are mounted, a reflection interference detection camera which images light emitted from the reflection interference measurement light source and reflected from the cells through the transparent member, to generate a reflection interference image, and an analysis unit which calculates a parameter dI about adhesion between the cells and the transparent member from the reflection interference image and detects a change of membrane potential of the cells on the basis of a change of the parameter dI.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: August 23, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Norikazu Sugiyama, Takuji Kataoka, Takahiro Ikeda
  • Patent number: 9411241
    Abstract: A facet mirror is to be used as a bundle-guiding optical component in a projection exposure apparatus for microlithography. The facet mirror has a plurality of separate mirrors. For individual deflection of incident illumination light, the separate mirrors are in each case connected to an actuator in such a way that they are separately tiltable about at least one tilt axis. A control device, which is connected to the actuators, is configured in such a way that a given grouping of the separate mirrors can be grouped into separate mirror groups that include in each case at least two separate mirrors. The result is a facet mirror which, when installed in the projection exposure apparatus, increases the variability for setting various illumination geometries of an object field to be illuminated by the projection exposure apparatus. Various embodiments of separate mirrors for forming the facet mirrors are described.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: August 9, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Udo Dinger, Martin Endres, Armin Werber, Norbert Muehlberger, Florian Bach
  • Patent number: 9409255
    Abstract: An imaging system includes a beam generating system configured to generate a light beam of 0.5 kW or greater with a predetermined intensity profile across at least one axis transverse to a propagation axis thereof and to direct the light beam along a beam path, a light modulator configured to receive the light beam and to modulate the light beam into a predetermined illumination pattern, and an optical relay configured to receive the portion of the light beam and reflectively project the beam to a target, wherein the illumination pattern is imaged at the target with substantially time-invariant spatial accuracies of 500 ?m or less in a plane transverse to the propagation axis and 1000 ?m or less parallel to the propagation axis.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: August 9, 2016
    Assignee: nLIGHT, Inc.
    Inventors: Robert J. Martinsen, Scott R. Karlsen, Scott A. Lerner
  • Patent number: 9395526
    Abstract: A quadric reflector can have an approximately conical shape. The shape can tapers from a wide base to an apex. The apex can include an aperture, a mirror, and a set of one or more optical elements. A mirror can be positioned within an overhang enclosure of the device in a plane approximately parallel to a circular cross section of the conical shape. The mirror can reflect environmental light that is reflected by the quadric reflector into the aperture or reflect light emitting from the aperture onto the quadric reflector. The overhang enclosure can have a substantially conical shape which eliminates secondary reflection resulting from the environmental light reaching the aperture twice. Using the overhang enclosure to absorb the secondary reflection eliminates or minimizes banding.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: July 19, 2016
    Inventors: Julio Abdala, Patricio Durazo, Gary Peterson, Claudio Ribeiro, William H. Robertson, Jr.
  • Patent number: 9366874
    Abstract: A beam combining device includes a plurality of separate input beam paths and an output beam path for combining a plurality of input beams to an output beam. One or a plurality of Risley prism pairs are assigned to each input beam path of the beam combining device. The prism pairs deflect the input beam in an adjustable direction. A device for deflecting a light beam includes a Risley prism pair that includes two prisms arranged one behind the other in the light beam path. At least one of the two prisms is mounted in a rotatable manner. An electromotive drive brings about a rotary movement of the rotatable prism. The electromotive drive is a piezoelectric vibration drive having a mechanical resonator and a piezoelectric element coupled thereto. The resonator bears against a friction wheel connected to the rotatable prism.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: June 14, 2016
    Assignee: TOPTICA Photonics AG
    Inventor: Marco Schneider
  • Patent number: 9268121
    Abstract: A sensor device and a method for a double telecentric optical system includes a single focusing element, such as a lens. The device and method further include a mirror element arranged at a focal point of the single focusing element to reflect incoming light rays back to the single focusing element. The incoming and reflected light rays pass through different parts of the single focusing element to allow for a spatially separated arrangement of an object and its image.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: February 23, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jacobus Maria Antonius Van Den Eerenbeemd, Jacobus Hermanus Maria Neijzen
  • Patent number: 9244257
    Abstract: A projection optical system comprises an image forming unit that forms an image; a refractive optical system including a plurality of lenses that enlarges and projects the image on a screen; and a reflecting surface, wherein an intermediate image is formed between the refractive optical system and the reflecting surface, and the projection optical system satisfies conditions of “0.6<D/Did<0.8” and “2.5<Did/F<6”, where “Did” represents a maximum paraxial image height of the intermediate image in a focusing state in which a projection image is maximum, “D” represents a maximum value of a distance between an optical axis and an intersection of a paraxial image surface and a light beam passing center of an aperture stop of the refractive optical system, and “F” represents a focal length of the refractive optical system in a focusing state in which the projection image is maximum.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 26, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventor: Yohei Takano
  • Patent number: 9239521
    Abstract: A projection optics for microlithography, which images an object field in an object plane into an image field in an image plane, where the projection optics include at least one curved mirror and including at least one refractive subunit, as well as related systems, components, methods and products prepared by such methods, are disclosed.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: January 19, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Hans-Juergen Mann
  • Patent number: 9228895
    Abstract: A multi-wavelength optical imaging system and method. In one example, an optical imaging system includes an integrated dewar assembly housing a staring detector that includes a plurality of focal plane array sensors spatially distributed over a common focal plane and aligned relative to one another, each of the plurality of focal plane array sensors being configured for a different waveband. The optical imaging system further includes foreoptics, such as a telescope, optically coupled to the integrated dewar assembly and configured to direct and focus light from an entrance pupil of the optical imaging system into an optical beam incident on at least one of the plurality of focal plane array sensors.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: January 5, 2016
    Assignee: RAYTHEON COMPANY
    Inventors: Brian K. McComas, Kent P. Pfibsen
  • Patent number: 9166686
    Abstract: A laser communications terminal configured for simultaneous two-way stabilized communications links to multiple ground sites. One example of such a laser communications terminal includes a plurality of laser channels, each including a channel transceiver configured to transmit and receive an optical signal, an afocal telescope optically coupled to each of the channel transceivers, a coelostat mirror pair optically coupled to the afocal telescope, and a plurality of beam steering mirrors, at least one beam steering mirror associated with each channel of the plurality of laser channels and configured to independently steer the corresponding optical signal within a field of view of the afocal telescope.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: October 20, 2015
    Assignee: RAYTHEON COMPANY
    Inventor: Lacy G. Cook
  • Patent number: 9110274
    Abstract: A catadioptric optical system of the present invention includes a catadioptric unit configured to condense light fluxes from an object and to form an intermediate image of the object, a field lens disposed at a position where the intermediate image are formed, and a dioptric unit configured to form the intermediate image on an image surface, and when ?cat denotes a smallest Abbe number in Abbe numbers of materials of the first and second optical elements configuring the catadioptric unit and ?dio denotes a smallest Abbe number in Abbe numbers of materials of a plurality of dioptric optical elements configuring the dioptric unit, ?dio<?cat is satisfied.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: August 18, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazuhiko Kajiyama, Masayuki Suzuki, Yuji Katashiba
  • Patent number: 8989584
    Abstract: An RF/Optical shared aperture is capable of transmitting and receiving optical signals and RF signals simultaneously. This technology enables compact wide bandwidth communications systems with 100% availability in clear air turbulence, rain and fog. The functions of an optical telescope and an RF reflector antenna are combined into a single compact package by installing an RF feed at either of the focal points of a modified Gregorian telescope.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 24, 2015
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Anthony J. Ruggiero, Hsueh-yuan Pao, Paul Sargis
  • Patent number: 8970819
    Abstract: A microlithography projection optical system is disclosed. The system can include a plurality of optical elements arranged to image radiation having a wavelength ? from an object field in an object plane to an image field in an image plane. The plurality of optical elements can have an entrance pupil located more than 2.8 m from the object plane. A path of radiation through the optical system can be characterized by chief rays having an angle of 3° or more with respect to the normal to the object plane. This can allow the use of phase shifting masks as objects to be imaged, in particular for EUV wavelengths.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: March 3, 2015
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Hans-Juergen Mann, Wilhelm Ulrich
  • Patent number: 8965193
    Abstract: Systems and methods are provided for a solid filled mirrored lens system capable of wider fields of view and wider spectra than current lens systems. The mirrored lens is used to focus light incident upon a right circular cylindrical central body comprising a substantially planar first surface and a substantially planar second surface. A primary reflecting surface is located on the second surface of the central body and shaped as an annulus with a void in the central region of the second surface. Further, a secondary reflecting surface is located in a central region of the first surface facing the primary reflecting surface.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: February 24, 2015
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Christopher B. Svec, Alan R. Greenland, Hao C. Tran
  • Patent number: 8946743
    Abstract: Disclosed is a light emitting apparatus. The light emitting apparatus includes a package body; first and second electrodes; a light emitting device electrically connected to the first and second electrodes and including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer between the first and second conductive semiconductor layers; and a lens supported on the package body and at least a part of the lens including a reflective structure. The package body includes a first cavity, one ends of the first and second electrodes are exposed in the first cavity and other ends of the first and second electrodes are exposed at lateral sides of the package body, and a second cavity is formed at a predetermined portion of the first electrode exposed in the first cavity.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: February 3, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Bong Kul Min
  • Patent number: 8947775
    Abstract: A catadioptric optical system includes, in order from an object side to an image side and arranged along an optical axis, a first catadioptric unit, a second catadioptric unit disposed in axial alignment with the first catadioptric unit and with a space therebetween; and a lens group disposed in axial alignment with the first and second catadioptric optical units. Light rays arriving from an object plane undergo a first reflection at the image-side surface of the first catadioptric optical unit, a second reflection at the object-side surface of the first catadioptric optical unit, a third reflection at the image-side surface of the second catadioptric optical unit, and a fourth reflection at the object-side surface of the second catadioptric optical unit. Advantageously, the sum the outward Petzval curvatures is cancelled out by the sum of inward Petzval curvatures.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: February 3, 2015
    Assignees: The Arizona Board of Regents on Behalf of the University of Arizona, Canon Kabushiki Kaisha
    Inventors: Jose Manuel Sasian-Alvarado, Masatsugu Nakano
  • Patent number: 8947675
    Abstract: The method for measuring profile of an aspheric surface projects an illumination light onto the aspheric surface and introduces a reflected light reflected by the aspheric surface to a sensor through an optical system. The method provides, to a wavefront of the illumination light, a curvature bringing an absolute value of an angle of the reflected light to a smaller value than a maximum value of absolute values of angles of optical system side peripheral rays, locates an exit pupil such that the absolute value of the reflected light angle is smaller than the maximum value, provides, to a sensor conjugate surface, a curvature and a position causing rays of the reflected light not to intersect on the sensor conjugate surface. The sensor conjugate surface, the wavefront of the illumination light and the aspheric surface have a same one of convex and concave surfaces toward a same direction.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: February 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshiki Maeda
  • Patent number: 8947778
    Abstract: New families of two mirror unobscured telescopes with compact Schiefspiegler, eccentric pupil Cassegrain geometries, incorporating aspheres, tilted and decentered secondaries, and tilted decentered focal surfaces. These variables allow control of focal surface tilt. All embodiments, from f/5 to f/16, are totally reflecting, fully baffled systems, with wide diffraction limited FOVs and unobscured aperture MTFs. Systems optimized with the focal plane normal to the gut ray are well suited for visual and general use. They can incorporate a variable iris for f/number control and allow focusing along the gut ray with minimal field tilt. Systems optimized with a fixed focal plane tilt are well suited for high resolution, wide field collimators and IR scene generators. Any light reflected at focus can be trapped, eliminating Narcissus or “cats eye” effects. Additionally, this reflection can be used to provide a uniform “background” irradiance field.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: February 3, 2015
    Inventor: Richard F. Horton
  • Patent number: 8947774
    Abstract: A catadioptric optical system includes a first imaging optical system that includes a catadioptric part that collects a light beam from an object to form an intermediate image of the object, and a second imaging optical system that includes a refractive part that images the intermediate image on an image plane. The first imaging optical system includes a first optical element, a second optical element, and a negative lens in an optical path between the first and second optical elements, and the first and second optical elements are disposed so that reflection parts of the first and second optical element face each other. A power ?n of the negative lens, radii of curvature R1n and R2n of lens surfaces of the negative lens at an object side and an image side, respectively, and a power ?1 of the first imaging optical system are appropriately set.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: February 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masatsugu Nakano
  • Patent number: 8913316
    Abstract: A catadioptric projection objective has a first objective part, defining a first part of the optical axis and imaging an object field to form a first real intermediate image. It also has a second, catadioptric objective part forming a second real intermediate image using the radiation from the first objective part. The second objective part has a concave mirror and defines a second part of the optical axis. A third objective part images the second real intermediate image into the image plane and defines a third part of the optical axis. Folding mirrors deflect the radiation from the object plane towards the concave mirror; and deflect the radiation from the concave mirror towards the image plane. The first part of the optical axis defined by the first objective part is laterally offset from and aligned parallel with the third part of the optical axis.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: December 16, 2014
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Aurelian Dodoc, Wilhelm Ulrich, Alexander Epple
  • Patent number: 8896938
    Abstract: A catadioptric lens system includes, in order of light travel: a first lens group that includes a concave mirror and a convex mirror and has a positive refractive power; a second lens group that is positioned on the image side of the concave mirror and has a negative refractive power; and a third lens group that has a positive refractive power, wherein the first lens group has a plurality of lenses on the image side of the concave mirror, and some lenses of the plurality of lenses are formed as a vibration-proof group so as to be movable in a direction perpendicular to an optical axis.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: November 25, 2014
    Assignee: Sony Corporation
    Inventor: Takeshi Hatakeyama
  • Patent number: 8837041
    Abstract: A magnifying imaging optical system is disclosed that has precisely three mirrors, which image an object field in an object plane into an image field in an image plane. A ratio between a transverse dimension of the image field and a transverse dimension measured in the same direction of a useful face of the last mirror before the image field is greater than 3. In a further aspect, the magnifying imaging optical system is disclosed that has at least three mirrors, which image an object field in an object plane in an image field in an image plane. A first mirror in the beam path after the object field is concave, a second mirror is also concave and a third mirror is convex. An angle of incidence of imaging beams on the last mirror before the image field is less than 15°.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: September 16, 2014
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Hans-Juergen Mann, Heiko Feldmann
  • Publication number: 20140254003
    Abstract: A reflective optical system includes: a telescope section which includes a concave primary mirror and a concave secondary mirror; and a collimator section which includes at least one concave mirror disposed in a tilted manner with respect to an optical axis of the telescope section and at least one convex mirror disposed in a tilted manner with respect to the optical axis of the telescope section and on which converged light flux is incident, the collimator section receiving light flux from the telescope section.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 11, 2014
    Inventors: Yuji Katashiba, Toru Matsuda
  • Publication number: 20140240820
    Abstract: An afocal telescope configured for back-scanned imagery including a three mirror anastigmat and an optical element positioned proximate an intermediate image plane of the three mirror anastigmat and configured to adjust distortion characteristics of the afocal telescope to control image wander on a focal plane array. The optical element may be a field correcting lens or mirror, for example.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: RAYTHEON COMPANY
    Inventor: David N. Sitter, JR.