Rotating Prism Patents (Class 359/211.2)
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Patent number: 11981097Abstract: Multi-sided prism printing systems and processes that apply a light-blocking material (e.g., a polymer) to at least part of the surfaces of at least two sides of a prism at the same time. The multi-sided prism printing systems and processes may significantly increase throughput of prism printing when compared to conventional prism printing methods in which only one side of a prism is printed at a time. In addition, the multi-sided prism printing systems and processes may provide a more accurate alignment of the printed patterns on lateral faces of the prism when compared to conventional prism printing methods in which only one lateral face of a prism is printed at a time.Type: GrantFiled: January 7, 2021Date of Patent: May 14, 2024Assignee: Apple Inc.Inventors: Alexander Feldman, Iain Alexander McAllister
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Patent number: 11803094Abstract: According to one example, an optical element assembly includes a transparent rod, a mirror and a light emitting element. The rod transmits light of first wavelength region made incident on a first end of the rod and emits the light of the first wavelength region from a second end of the rod. The rod absorbs light of a second wavelength region falling out of the first wavelength region. The mirror is disposed on a side of the first end. The mirror transmits one of the light of the first and second wavelength regions, reflects the other. The light of the first and second wavelength regions are made incident on the first end of the rod. The light emitting element emits light of the second wavelength region made incident on the first end of the rod through the mirror.Type: GrantFiled: February 27, 2020Date of Patent: October 31, 2023Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Ohno, Takashi Usui
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Patent number: 11604260Abstract: A two dimensional (2D) LIDAR scanning system that uses a combination of a rotating polygonal mirror and a rotatable prism to scan an area of an object. The polygonal mirror and prism are rotated in combination to generate a scanning pattern. A pulsed laser is directed to the polygonal mirror and the prism is held in a fixed position. The polygonal mirror is then incremented a plurality of times to generate a scan line of LIDAR data. The prism is then incremented and a next scan line, e.g., up or down from the first scan line, is generated. An avalanche photodiode (APD) can read the reflections of objects for each scan point. Object reflections can be directed to the APD using either a polarizing beam splitter with a quarter wave plate, or a 50-50 beam splitter.Type: GrantFiled: November 19, 2018Date of Patent: March 14, 2023Assignee: BAIDU USA LLCInventors: Yang Han, Yaoming Shen, Xiangfei Zhou
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Patent number: 11454800Abstract: An optical device and a method for high-resolution image transfer are provided. The optical device includes an image-guiding element having a distal end and a proximal end, an inverting reflection prism having an entry face and an exit face, and a display element. The image-guiding element directs light beams into the inverting reflection prism, and after having passed therethrough they are directed to the display element, the image-guiding element being mounted for non-stop rotation over more than 360°. The light entry face and the light exit face of the image-guiding element define an angle ? to one another which is between 5° and 175°.Type: GrantFiled: June 5, 2020Date of Patent: September 27, 2022Assignee: SCHOTT AGInventor: Stefan Weiser
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Patent number: 10359608Abstract: Disclosed are a bifocal lens having two focal distances to enable near image capturing and far image capturing and capable of being manufactured to have a thin profile, and an imaging device including same. A bifocal lens according to disclosed embodiments may include: a refractive optical system having at least one refractive lens element and having a first focal distance; and a reflective optical system having multiple reflective surfaces and having a second focal distance that is different from the first focal distance. Because the refractive optical system and the reflective optical system have mutually different focal distances, the bifocal lens according to an embodiment may be capable of both near image capturing and far image capturing.Type: GrantFiled: January 14, 2015Date of Patent: July 23, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-chul Choi, Jin-won Lee, Chong-sam Chung
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Patent number: 10215846Abstract: A LIDAR system includes a static monolithic LIDAR transceiver, a collimating optic, and a first rotatable wedge prism. The static monolithic LIDAR transceiver is configured to transmit a laser beam and receive reflected laser light from a first target object. The collimating optic is configured to narrow the transmitted laser beam to produce a collimated laser beam. The first rotatable wedge prism is configured to steer the collimated laser beam in a direction of the first target object based on the first rotatable wedge prism being in a first position.Type: GrantFiled: November 20, 2015Date of Patent: February 26, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Daniel Nelson Carothers
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Patent number: 10108104Abstract: An anamorphic optical element and an adjustment mechanism for selectively rotating the optical element either around an axis substantially in a vertical direction, an axis substantially in an optical axis direction, an axis substantially in a plane formed by the vertical direction and the optical axis direction, or combination of axes thereof is used to vary a vertical separation between two or more spots.Type: GrantFiled: September 23, 2014Date of Patent: October 23, 2018Assignee: Hewlett-Packard Development Company, L.P.Inventors: Michael Plotkin, David Towner, Haim Livne, Peter Gysling, Craig Breen, Dale Wolin
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Patent number: 9804144Abstract: A method for laser microdissection of a laser microdissection region of a prepared specimen includes driving a holder for the specimen into a holding position using a control device. First and second digital images are captured that depict a same portion of the prepared specimen, with the first image depicting the portion under at least one first microscopic examination method and the second image depicting the portion under at least a second microscopic examination method. A live overlay image is generated of the portion of the prepared image in a live mode. The live overlay is presented on a display area with the images overlaid onto one another. A marking is generated and captured on the live overlay image so as to define the laser microdissection region.Type: GrantFiled: October 9, 2013Date of Patent: October 31, 2017Assignee: LEICA MICROSYSTEMS CMS GMBHInventors: Falk Schlaudraff, Florian Hoffmann
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Publication number: 20150029571Abstract: Optical scanning devices and systems are disclosed. In one aspect, an optical scanning device comprises a first rotatable optical component and a second rotatable optical component. The first and second optical components are configured to rotate about a common optical axis and further configured to deflect an optical path of light transmitted or received through the optical scanning device. The device further comprises a mounting bracket positioned between the first and second optical components and comprises first and second motor assemblies configured to rotate the corresponding first and second optical components about the optical axis independently of each other. An inner portion of each of the first and second optical components is mounted to an outer portion of the corresponding first and second motor assemblies such that the optical axis is configured to extend through the center of the first and second optical components and tubes.Type: ApplicationFiled: July 22, 2014Publication date: January 29, 2015Inventors: Bradley Charles Steele, Graham Cross Nelson, William Clifton
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Publication number: 20140333978Abstract: In certain embodiments, a scanning system comprises optical elements and a movement system. The optical elements comprise an optical fiber and a focusing element. The optical fiber transmits a light ray and has a fiber axis that extends to an imaginary fiber axis. The focusing element refracts the light ray and has a focusing element optical axis that is substantially aligned with the imaginary fiber axis. The movement system rotates the focusing element about the focusing element optical axis to scan the light ray. In other embodiments, a scanning system comprises optical elements and a movement system. The optical elements comprise an optical fiber, a focusing element, and a prism. The prism has a prism optical axis and receives the light ray from the focusing element. The movement system rotates the prism about the prism optical axis to scan the light ray.Type: ApplicationFiled: May 7, 2013Publication date: November 13, 2014Applicant: ALCON RESEARCH, LTD.Inventors: Tammo Hereen, Mauricio Jochinsen, Dean Y. Lin, Michael J. Papac, Kambiz Parto, Edouard G. Schmidtlin, Barry L. Wheatley, Lingfeng Yu
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Patent number: 8885239Abstract: An anamorphic optical element and an adjustment mechanism for selectively rotating the optical element either around an axis substantially in a vertical direction, an axis substantially in an optical axis direction, an axis substantially in a plane formed by the vertical direction and the optical axis direction, or combination of axes thereof is used to vary a vertical separation between two or more spots.Type: GrantFiled: February 21, 2007Date of Patent: November 11, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Michael Plotkin, David Towner, Haim Livne, Peter Gysling, Craig Breen, Dale Wolin
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Patent number: 8760562Abstract: A camera (1), in particular in a space vehicle, having a housing (2) which contains at least one optically sensitive exposure surface (7), and a base lens (9), having a first fixed focal length, connected thereto in each case, and which projects on the at least one exposure surface (7) and which is situated on a first optical axis (10) for the exposure surface (7). To provide the camera with various fields of view, in particular for the approach of two satellites toward one another over large distances, at least two afocal supplementary lenses (11, 12) which are each parallel with respect to their optical axes (15, 16) and spaced at a distance from the first optical axis (10) are situated in the housing (2), whose optical paths are alternately coupleable with the aid of a pivotable prism (17), to form further fixed focal lengths in an optical path of the base lens (9).Type: GrantFiled: May 20, 2011Date of Patent: June 24, 2014Assignee: Jena Optronik GmbHInventors: Steffen Kirschstein, Florian Kolb, Richard Wuerl, Dirk Kraemer
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Patent number: 8746888Abstract: A stereoscopic digital projection system for projecting a stereoscopic image including a left-eye image and a right-eye image, comprising: first and second light sources providing corresponding first and second light beams having spectrally-adjacent, substantially non-overlapping spectral bands falling within a single component color spectrum; a spatial light modulator having an array of pixels that can be modulated according to image data to provide imaging light; illumination optics arranged to receive the first and second light beams and provide substantially uniform first and second bands of light; beam scanning optics arranged to cyclically scroll the first and second bands of light across the spatial light modulator; a controller system that synchronously modulates the spatial light modulator pixels according to image data for the stereoscopic image; projection optics for delivering the imaging light from the to a display surface; and filter glasses for a viewer.Type: GrantFiled: October 3, 2011Date of Patent: June 10, 2014Assignee: Eastman Kodak CompanyInventor: Barry David Silverstein
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Patent number: 8634124Abstract: Provided is an optical apparatus including a filter (102) that includes a first surface (105) intersecting a rotation axis at a predetermined angle and a second surface (106) orthogonal to the rotation axis and rotates around the rotation axis, a filter (110) that is arranged adjacent to the filter (102), includes a third surface (115) and a fourth surface (116) in a spatial relationship of point-symmetry to the first surface (105) and the second surface (106) about a point on the rotation axis between the filters, and rotates in an opposite direction of the filter (102) around the rotation axis.Type: GrantFiled: September 17, 2010Date of Patent: January 21, 2014Assignee: Sony CorporationInventor: Koichi Yoshikawa
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Patent number: 8400700Abstract: A beam steering device is disclosed which includes an outer assembly rotatable about an axis by a motor assembly, and an inner assembly rotatable about the axis by another motor assembly and positioned radially within the outer assembly. The beam steering device also includes a first prism or grating connected to the outer assembly and a second prism or grating connected to the inner assembly. Both motor assemblies are axially displaced from the steering devices. The beam steering device also consists of beam expansion optics carried by either the inner assembly or the stationary assembly. In a further embodiment, an array of steerable sub-apertures are maintained within the inner and outer assemblies.Type: GrantFiled: September 15, 2010Date of Patent: March 19, 2013Assignee: Lockheed Martin CorporationInventors: Dennis J. Adams, Alan F. Lindsay, Brian L. Stamper, Charles T. Knorr, Aaron P. Seibel, Michael R. Crano
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Patent number: 8294971Abstract: An optical path delay scanner, comprising a rotatable mount, a first prism and a second prism disposed on the mount, and a radiation source aligned to project light through the first prism and the second prism. The radiation source may be arranged to project the light on a surface of the first prism at an incidence angle corresponding to the prism's minimum deviation angle. The scanner may be disposed in a reference arm of a Michaelson interferometer.Type: GrantFiled: December 18, 2008Date of Patent: October 23, 2012Assignee: Bausch • Lomb IncorporatedInventor: Ming Lai
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Patent number: 8125700Abstract: An optical scanning apparatus includes a first optical member for receiving a plurality of light beams with an interval and for causing a first group of beams to emerge with a narrower interval, the first optical member being rotatable to adjust the interval of the beams emergent therefrom; a second optical member for receiving a second light beam and the first group of beams emergent from the first optical member with an interval and for causing a third group of beams to emerge with a narrower interval, the second optical member being rotatable to change the interval between the first group of beams and the second beam; and deflecting means for scanningly deflecting a third group of beams emergent from the second optical member.Type: GrantFiled: November 23, 2010Date of Patent: February 28, 2012Assignee: Canon Kabushiki KaishaInventor: Haruhiko Nakatsu
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Patent number: 8094355Abstract: A laser projection system comprises: (i) a coherent light source including at least one laser configured to emit an output beam carrying signal data; (ii) a scanning optics, the scanning optics comprising at least one scanning reflector, the scanning reflector positioned in an optical path of the output beam; and (iii) a rotating polygon prism; wherein (a) the scanning reflector is configured to direct the output beam towards the polygon prism and scan the output beam across a projection surface; and (b) the polygon prism is configured to transmit the scanned output beam through its body, and create a virtual image of the scanning reflector, such that said virtual image of the scanning reflector is moving when said polygon prism rotates.Type: GrantFiled: April 29, 2009Date of Patent: January 10, 2012Assignee: Corning IncorporatedInventor: Jacques Gollier
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Patent number: 7933056Abstract: This invention relates in general to methods and systems of rapid focusing and zooming for the applications in the projection of volumetric 3D images and in the imaging of 3D objects. Rapid variable focusing or zooming is achieved by rapid and repeated change of the object distance or the spacing between lens groups of the projection lens or a combination of both. One preferred approach inserts thin wedge prisms into the optical path and changes their positions relative to the optical path. This changes the thickness traveled through by the optical path and results in effective optical path length change. Another approach folds an optical path by mirrors and moves the mirrors to change the optical path length. For focusing purpose, small and precise displacement is achieved by moving a wedge-shaped optical device obliquely with respect to the optical path. The wedge-shaped optical device can be a thin wedge prism or a mirror on a wedge-shaped base.Type: GrantFiled: September 24, 2008Date of Patent: April 26, 2011Inventor: Che-Chih Tsao
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Patent number: 7898712Abstract: A Risley integrated steering module is disclosed. The beam steering device consists of an outer assembly rotatable about an axis, and an inner assembly rotatable about the axis and positioned radially within the outer assembly. The beam steering device also includes a first prism connected to the outer assembly and a second prism connected to the inner assembly, and a stationary assembly, with the outer and inner assemblies being rotatable about the portion of the stationary assembly. In an alternative embodiment, the inner assembly rotates within the stationary assembly. The beam steering device also consists of beam expansion optics carried by either the inner assembly or the stationary assembly.Type: GrantFiled: June 25, 2009Date of Patent: March 1, 2011Assignee: Lockheed Martin CorporationInventors: Dennis J. Adams, Alan F. Lindsay, Brian L. Stamper, Charles T. Knorr, Aaron P. Seibel, Michael R. Crano
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Patent number: 7855817Abstract: An optical scanning apparatus includes a first optical member for receiving a plurality of light beams with an interval and for causing a first group of beams to emerge with a narrower interval, the first optical member being rotatable to adjust the interval of the beams emergent therefrom; a second optical member for receiving a second light beam and the first group of beams emergent from the first optical member with an interval and for causing a third group of beams to emerge with a narrower interval, the second optical member being rotatable to change the interval between the first group of beams and the second beam; and deflecting means for scanningly deflecting a third group of beams emergent from the second optical member.Type: GrantFiled: May 5, 2005Date of Patent: December 21, 2010Assignee: Canon Kabushiki KaishaInventor: Haruhiko Nakatsu
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Patent number: 7796340Abstract: An illumination system using, in place of a more typical beam splitter, two right angle triangular prisms that are aligned to each other along their respective hypotenuses to form a cube, but without any reflective materials being used at their interface, and with the two halves separated by some distance so as to create an open/air gap between the two halves. When the upper/lower cube faces are normal to an optical axis of the illumination system, the cube structure reflects virtually all of the illumination from a transverse illumination source using total internal reflection so that said illumination is reflected out of the cube along the system's optical axis. However, rotating the cube structure past the critical angle eliminates total internal reflection and allows the cube to transmit almost all illumination entering the cube out of the cube parallel to the system's optical axis.Type: GrantFiled: April 5, 2007Date of Patent: September 14, 2010Assignee: Quality Vision International, Inc.Inventor: Stephanie Bloch
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Patent number: 7663791Abstract: A scanning system, including a main housing, and at least one optical wedge (12) rotatable about a shaft means (40) located within the main housing (26), wherein a laser beam having an optical axis and incident on the optical wedge (12), is refracted at least once by the wedge; characterized in that the shaft means (40) passes through the center of the at least one wedge (12) and that the optical axis of the incident laser beam is substantially parallel to, but laterally offset from, the shaft means (40).Type: GrantFiled: May 6, 2004Date of Patent: February 16, 2010Assignee: ELOP Electro-Optics Industries Ltd.Inventors: Vladimir Krupkin, Naftaly Shcheranski, Boaz Lubashitz
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Publication number: 20090066926Abstract: An acousto-optic cell is used in a method and device for patterning a workpiece, for exposing a radiation sensitive layer on a workpiece such as a mask or a device substrate. The acousto-optic cell includes an array of transducers. The transducers may supply columns of ultrasound to the cell. They may produce a two dimensional modulation pattern within the cell. Electromagnetic radiation is modulated by the cell and related to a workpiece. The modulation of the cell may modulate the amplitude and/or phase of the electromagnetic radiation. In some embodiments, adjoining columns of ultrasound may be positioned so that portions of the electromagnetic radiation partially overlap and interfere, after they are modulated.Type: ApplicationFiled: November 4, 2008Publication date: March 12, 2009Applicant: Micronic Laser Systems ABInventor: Torbjorn Sandstrom