Particular Condenser Patents (Class 353/102)
  • Patent number: 10732425
    Abstract: There is provided a light source device including a first light source that emits light in a first wavelength region, a second light source that emits light in a second wavelength region different from the first wavelength region, a wavelength conversion unit including a fluorescent material and emits fluorescent emission light in a different wavelength region upon irradiation with the light in the first wavelength region, and a combining unit that has wavelength selectivity to a specific wavelength region corresponding to the second wavelength region and combines the light in the first wavelength region from the first light source, the light in the second wavelength region from the second light source, and the fluorescent emission light which are incident on the combining unit with one another.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: August 4, 2020
    Assignee: SONY CORPORATION
    Inventor: Shinichiro Tajiri
  • Patent number: 10627053
    Abstract: An illumination device (10) includes: a light diffusion device (50) including element diffusion devices (55) that diffuse incident light; a coherent light source (15) that emits coherent light; a shaping optical system (20) that shapes the coherent light; a scanner (30) that adjusts a traveling direction of the coherent light so as to allow the coherent light to scan the light diffusion device; and a light condensing optical system located on a light path of the coherent light from the shaping optical system up to the light diffusion device. The light condensing optical system condenses the coherent light such that a spot area on the light diffusion device is smaller than the element diffusion device. Each element diffusion device diffuses the coherent light incident thereon so as to illuminate an element illumination area corresponding to the element diffusion device.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: April 21, 2020
    Assignee: Dai Dippon Printing Co., Ltd.
    Inventor: Makio Kurashige
  • Patent number: 10545395
    Abstract: The present invention provides an illumination optical system that illuminates a surface to be illuminated by using a light beam from a light source, comprising: an optical element configured to transmit the light beam from the light source; and a member that has an incident surface on which the light beam transmitted through the optical element is incident, wherein the optical element has a first region including a central portion of the optical element, and a second region outside the first region, and wherein the optical element is formed so as to overlap a part of a light beam which is transmitted through the first region and a part of the light beam which is transmitted through the second region, on the incident surface.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: January 28, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuji Nakamura, Daisuke Kobayashi
  • Patent number: 10466578
    Abstract: A projection optical system consists of, in order from the magnification side, a first optical system, which consists of one convex mirror and a plurality of lenses disposed on the reduction side of the convex mirror, and a second optical system. The lens closest to the magnification side in the first optical system is a negative lens. Assuming that a paraxial radius of curvature of the convex mirror is Mr and a focal length of the negative lens closest to the magnification side in the first optical system is fL1, Conditional Expression is satisfied: 0<Mr/fL1<4.5.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: November 5, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Masaru Amano
  • Patent number: 10451962
    Abstract: A projection optical system forms an intermediate image at a position conjugate to a reduction side imaging surface, and forms a final image conjugate to the intermediate image on a magnification side imaging surface. The projection optical system includes a convex mirror disposed to be closer to the magnification side than the intermediate image and at least one lens that has a positive or negative refractive power and is disposed in an optical path so as to be closer to the magnification side than the convex mirror.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: October 22, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Masaru Amano
  • Patent number: 10260716
    Abstract: The invention relates to an illumination unit that encompasses two light sources arranged one behind another in a channel . A cooling unit is provided respectively at the two ends of the channel. The invention further relates to an energy supply unit for supplying the illumination unit with electrical energy. The energy supply unit encompasses two energy sources arranged in a channel. Respective cooling units are arranged at the two ends of the channel.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 16, 2019
    Assignee: Leica Instruments (Singapore) Pte. Ltd.
    Inventors: Manfred Kuster, Marco Schutz, Ralf Körber
  • Patent number: 10244202
    Abstract: The present invention provides an image processing method, system for laser TV and the laser TV set thereof, which receives a TV signal before converting into ultra high definition images sequences; whose each image is then segmented and converted into two frames of image, and two sequences of image will then be obtained; which are then driven by two DMD driving chips and displayed in a time share and diagonal staggered way during a period satisfying a visual persistence. The present invention utilizes a principle of visual persistence, since two frames of image segmented from a frame of ultra high definition image may be processed at a same time by two existing DMD driving chips being able to process FHD images, and both frames of image may be displayed at different positions on the screen at different time, forming one frame of ultra high definition image in a human's vision.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 26, 2019
    Assignee: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD.
    Inventors: Yaoling Xu, Zhilong Hou, Jinkui Liang
  • Patent number: 10126589
    Abstract: A virtual curved surface display panel, a method of manufacturing the same, and a display device are provided. A set of vertical lenticular lens and horizontal lenticular lens fitted tightly and orthogonally is arranged on a light exit surface of a pixel in the flat display panel, which forms an equivalent spherical lens. The focal lengths of the equivalent spherical lenses are symmetrically distributed with a central pixel as a symmetry axis, and focal lengths of the equivalent spherical lenses in the columns located on the same side of the symmetry axis are not equal to each other. Therefore, the equivalent spherical lenses enable the images of the pixels to form a curved surface, thereby realizing virtual curved surface display.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 13, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Zhang, Yafeng Yang, Jian Gao, Can Wang, Xinli Ma, Wei Wang, Jifeng Tan
  • Patent number: 10094958
    Abstract: According to the present invention, there is provided a light diffusion film for diffusing incident light into an elliptical shape, which contains, inside the film, a structure composed of a plurality of flaky-shaped objects with comparatively high refractive index arranged in multiple rows in a region with comparatively low refractive index along any one arbitrary direction along the film plane. If T50 (?m) is the width of the flaky-shaped objects at a position of 50 ?m below the upper end of the flaky-shaped objects in the direction of the thickness of the light diffusion film, and if L50 (?m) is the length of the flaky-shaped objects in the above-mentioned arbitrary one direction, the following relation (1) is satisfied: 0.05?T50/L50<0.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: October 9, 2018
    Assignee: LINTEC Corporation
    Inventors: Baku Katagiri, Kentaro Kusama, Tomoo Orui
  • Patent number: 10088126
    Abstract: A symbol display element for a vehicle interior is proposed, which comprises a front cover formed by a diffusing lens. A shadow mask is arranged in the optical path between the diffusing lens and a plurality of point light sources which can be activated separately, and includes for each point light source an associated symbol which is projected in an enlarged manner onto the rear side of the diffusing lens upon activation of the corresponding point light source. With this easily realizable configuration of the display element, the different symbols share a common display surface on the diffusing lens which acts as a rear projection screen.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: October 2, 2018
    Assignee: TRW Automotive Electronics & Components GmbH
    Inventors: Ulrich Backes, Harald Koehnlein
  • Patent number: 9903819
    Abstract: According to an embodiment of the invention, an apparatus to detect fluorescence from a sample is disclosed. The apparatus comprises a sample plane onto which the sample is arranged, an excitation light unit including at least a light source to illuminate the sample, and a detection unit comprising at least a detector having at least 100,000 active detection elements to detect a fluorescence signal from the sample.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: February 27, 2018
    Assignee: ChemoMetec A/S
    Inventors: Søren Kjaerulff, Mette Elena Skinderso, Helle Frobose Sorensen, Frans Ejner Ravn, Martin Glensbjerg
  • Patent number: 9891507
    Abstract: A system including a light source configured to illuminate light onto an image modulation element; a projection optical system including at least a first lens system and a second lens system configured to project the image modulated by the modulation element; and circuitry configured to shift a position of the first lens system in a direction perpendicular to an optical axis of the projection optical system based on an optical zoom factor, wherein a position of the image modulation element is unchanged when the circuitry shifts the position of the first lens system.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: February 13, 2018
    Assignee: SONY CORPORATION
    Inventor: Jun Nishikawa
  • Patent number: 9800847
    Abstract: A light source unit includes a laser diode and a collimator lens having an entrance portion and an exit portion, with light emitted from the laser diode being incident light which is caused to enter the collimator lens. The laser diode is disposed so that a direction of a major axis of an elliptic cross section which intersects an axis of the incident light at right angles is defined as a direction of a first axis, and the entrance portion includes an elongated recess portion which is formed into a recess shape which is curved inwards towards a direction in which the incident light exits. In addition, a recessed edge of the elongated recess portion in a cross section, which intersects the first axis at right angles, is formed into an arc shape, and the incident light which enters the entrance portion is caused to exit from the exit portion.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: October 24, 2017
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Hideyuki Kurosaki
  • Patent number: 9766438
    Abstract: There is provided a projection optical system capable of projecting an image formed on an image forming unit on a projection plane, which has an extremely short projection distance and a small size.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: September 19, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Takano, Hibiki Tatsuno, Nobuyuki Arai, Hirotoshi Nakayama
  • Patent number: 9753360
    Abstract: To provide a heat dissipating device which enables the fabrication of a small and highly bright light source unit and a light source unit and a projector which include this heat dissipating device, a heat dissipating device is provided which includes a fixing portion which fixes a first light source, a first heat dissipating portion having a plurality of fins provided on a rear surface side of the fixing portion, a flat plate portion erected from the fixing portion and a second heat dissipating portion having a plurality of fins provided on the flat plate portion.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: September 5, 2017
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Kiyohiko Inoue
  • Patent number: 9715117
    Abstract: The present invention is an improvement in glasses-free autostereoscopic three dimensional image viewing systems. In particular, it comprises transmissive front projection and reflective rear projection screens with high optical efficiency and precision that facilitate the use of multiple low-cost digital projectors to display multiple perspective views of the displayed scene in well defined virtual apertures in the viewing region. In certain applications the invention facilitates indefinitely wide three dimensional displays that accommodate large groups of observers.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: July 25, 2017
    Inventor: G. B. Kirby Meacham
  • Patent number: 9645371
    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: December 8, 2015
    Date of Patent: May 9, 2017
    Assignee: Ricoh Company, Ltd.
    Inventor: Yohei Takano
  • Patent number: 9588434
    Abstract: In general, in one aspect, the invention features a system that includes an illumination system of a microlithography tool, the illumination system including a first component having a plurality of elements. During operation of the system, the elements direct radiation from a source along an optical path to an arc-shaped object field at an object plane of a projection objective, and at least one of the elements has a curved shape that is different from the arc-shape of the object field.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: March 7, 2017
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Jens Ossmann, Martin Endres, Ralf Stuetzle
  • Patent number: 9581313
    Abstract: A lighting apparatus has a light source emitting primary light; a reflector device with first and second focal points; a rotatable light wheel with two functional regions; a primary light device irradiated by the light source and having functionally assigned to it one of the functional regions as a primary light functional region, the first focal point being located at the primary light device; a utility light device to which is functionally assigned another of the functional regions as a utility light functional region, the second focal point being located at the utility light device; a primary light functional region having in a first rotational position of the light wheel at least one phosphor sensitive to the primary light; and a utility light functional region being transmissive to the light whose wavelength is converted by the primary light functional region.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: February 28, 2017
    Assignee: OSRAM GmbH
    Inventors: Klaus Finsterbusch, Ulrich Hartwig
  • Patent number: 9575402
    Abstract: An illumination optical system includes a first compression system configured to compress a light flux on each of first and second sections, a second compression system configured to compress the light flux on the first section, a polarization converter arranged so that a section that contains a normal of the second polarization splitting surface and the optical axis becomes the second section, and configured to convert non-polarized light into linearly polarized light, a first lens array arranged in front of the polarization converter along an optical path, and a second lens array arranged between the first lens array and the polarization converter along the optical path. Both of the first lens array and the second lens array have no optical power on the second section.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuuki Maeda, Takashi Sudo, Hiroyuki Kodama, Yu Yamauchi
  • Patent number: 9574735
    Abstract: A luminaire has a light source and a shell integrator. The shell integrator has a transparent dome over the light source, with inner and outer surfaces formed as arrays of lenslets. Each lenslet of the inner surface images the light source onto a respective lenslet of the outer surface, and each lenslet of the outer surface images the respective lenslet of the inner surface as a virtual image onto the light source. The dome may be substantially hemispherical. The light source and the integrator may be at an input of a collimator.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: February 21, 2017
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Pablo Benitez, Oliver Dross, Maikel Hernandez, Juan Carlos Minano
  • Patent number: 9400432
    Abstract: A lithography method and apparatus is disclosed herein. In a described embodiment, the method comprises (i) providing a first mask having an exposure pattern for forming a three dimensional structure; (ii) exposing the first mask to radiation to form the exposure pattern on a radiation-sensitive resist; the exposure pattern defined by irradiated areas and non-irradiated areas of the resist; (ii) providing a second mask; and (iii) during exposure, changing relative positions between the first mask and the second mask to shield selected portions of the irradiated areas from radiation to enable varying depth profiles to be created in the three dimensional structure.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: July 26, 2016
    Assignee: National University of Singapore
    Inventors: Sascha Pierre Heussler, Herbert O. Moser
  • Patent number: 9348207
    Abstract: An illuminating optical system suppresses deterioration in utilization efficiency of illuminating light and generation of fluctuations in light emission without increasing apparatus size. The illuminating optical system includes a plurality of light sources of different types, a light combining optical system that combines light beams output from each of the light sources such that they converge at a single position, and a rod integrator that uniformizes the light intensity distributions of the light beams which are converged at the single position that enter a first end thereof and outputs the light beams, of which the light intensity distribution has been uniformized, from a second end thereof. The light combining optical system includes relay optical component sets corresponding to each of the light sources, and the relay optical component sets have relay magnification ratios different from each other.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 24, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Chikara Yamamoto
  • Patent number: 9261767
    Abstract: There is provided a projection optical system capable of projecting an image formed on an image forming unit on a projection plane, which has an extremely short projection distance and a small size.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 16, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Takano, Hibiki Tatsuno, Nobuyuki Arai, Hirotoshi Nakayama
  • Patent number: 9223194
    Abstract: An illumination light beam forming device, including a first light source unit projecting a ring shaped light beam group, a second light source unit projecting light beams including a case the light beams being group, a combining unit for combining the light beam group projected from the first light source unit and light beams projected from the second light source unit, in which the combing unit includes a reflecting part formed to reflect one of the light beam groups, a transmitting part disposed able to transmit the other one of the light beam groups, and light beams projected from the second light source unit are disposed at an internal side of the light beam groups projected from the first light source unit when the two light beam groups are viewed from a plane including the reflecting part.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: December 29, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kazuhiro Fujita, Ikuo Maeda, Toshiharu Murai, Tatsuya Takahashi, Takehiro Nishimori
  • Patent number: 9170474
    Abstract: A projector can include a projection lens that is positioned substantially one focal length away from a spatial light modulator. The projector may also include a non-imaging optic configured to illuminate the spatial light modulator. The non-imaging optic may include a light emitter and an etendue-preserving reflector. The projector can be configured to project an image created by the spatial light modulator at a distance using light from the non-imaging optic.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: October 27, 2015
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Robert Holman, Matthew Brian Sampsell
  • Patent number: 9134591
    Abstract: A projector can include a projection lens that is positioned substantially one focal length away from a spatial light modulator. The projector may also include a non-imaging optic configured to illuminate the spatial light modulator. The non-imaging optic may include a light emitter and an etendue-preserving reflector. The projector can be configured to project an image created by the spatial light modulator at a distance using light from the non-imaging optic.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: September 15, 2015
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Robert Holman, Matthew Brian Sampsell
  • Patent number: 9039189
    Abstract: A projection apparatus includes a light source, a light valve, a light uniforming device, and a lens module. The light source provides an illumination beam. The light valve on a transmission path of the illumination beam converts the illumination beam into an image beam. The light valve has an active surface with a rectangular shape. The light uniforming device is between the light source and the light value. The lens module is between the light uniforming device and the light value. A refractive power of the lens module along a first direction is different from a refractive power of the lens module along a second direction. An f-number of the illumination beam along a direction parallel to a long side of the active surface of the light valve is greater than an f-number thereof along a direction parallel to a short side of the active surface of the light valve.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: May 26, 2015
    Assignee: Young Optics Inc.
    Inventors: Jui-Ping Chang, S-Wei Chen
  • Patent number: 9033521
    Abstract: A projection device having an image beam and an off-state light is provided, which includes a camera module, a condensing element, a digital micromirror device (DMD) and a shading element, wherein the DMD allows the image beam to enter the camera module, and the shading element is configured between the DMD and the condensing element to block the off-state light.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: May 19, 2015
    Assignee: Young Optics Inc.
    Inventors: Hui-Ping Chen, Cheng-Wei Tien
  • Patent number: 8985788
    Abstract: A support stand made of sheet metal is cooperated with an optical module and a reflective module. The support stand includes a base and a back frame. The optical module is disposed on the base. To enhance its structural rigidity, the base substantially has a “” or inverted “U” shape as viewed from an optical axis. The back frame is connected with the base, and the reflective module is disposed on the back frame. An optical apparatus with the above support stand is also disclosed.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 24, 2015
    Assignee: Delta Electronics, Inc.
    Inventors: Zhong-Ren Zhu, Mao-Shan Hsu
  • Publication number: 20150070899
    Abstract: A light emitting device includes a first layer that generates light by an injection current, the first layer is provided with a first optical waveguide extending from a first light emitting section disposed on a first side surface to a first light reflecting section disposed on a second side surface, a second optical waveguide extending from the first light reflecting section to a second light reflecting section disposed on a third side surface, and a third optical waveguide extending from the second light reflecting section to a second light emitting section disposed on the first side surface, and an element of the group II or the group XII is diffused in the first light reflecting section and the second light reflecting section.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 12, 2015
    Inventor: Masamitsu MOCHIZUKI
  • Publication number: 20150036108
    Abstract: To provide an illumination device and a projection type image display device that illuminate an area to be illuminated (image formation area) under conditions where speckle noise is less noticeable. An illumination device according to the present invention includes: a light source 11 that emits coherent light; an optical scanning section 15 that scans the coherent light emitted from the light source 11; and an optical path conversion system 21 configured to allow the coherent light scanned by the optical scanning section 15 to illuminate an area to be illuminated sequentially in an overlapping manner. An incident angle of the coherent light that enters respective points of the area to be illuminated changes with time.
    Type: Application
    Filed: April 22, 2012
    Publication date: February 5, 2015
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yukio Taniguchi, Makio Kurashige, Yasuyuki Ooyagi
  • Publication number: 20150029474
    Abstract: A projective optical system comprises: a lens optical system including lenses; and a transmissive optical element having an anamorphic surface and being provided in an optical path between the lens optical system and a projected surface, wherein the transmissive optical element has a curvature with respect to a direction corresponding to a long side of a display screen of the image display element, and on a cross-sectional surface being perpendicular to the long side of the display screen, and with respect to light being emitted from the lens optical system and being incident to the transmissive optical element, a light intensity of a first light flux being incident to the transmissive optical element at a first incident angle is lower than a light intensity of a second light flux being incident to the transmissive optical element at a second incident angle being larger than the first incident angle.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventor: Hibiki TATSUNO
  • Publication number: 20150015849
    Abstract: Disclosed is a projector, the projector including a light source, an illumination unit illuminating light incident from the light source, and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit.
    Type: Application
    Filed: February 18, 2014
    Publication date: January 15, 2015
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Eunsung Seo, Seungman Jeong, Hyunho Choi, Sanghun Lee
  • Patent number: 8894212
    Abstract: A projector optical system is provided, the system including an illumination unit including illumination lenses illuminating light downwards, a display device receiving light illuminated from the illumination lenses to enable to realize an image, projection lenses downwardly projecting light emitted from the display device to a screen, and a field lens changing an optical angle of the light illuminated from the illumination lenses and emitting the light to the display device, and changing an optical angle by receiving an image light of the display device and emitting the light to the projection lenses.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: November 25, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Eunsung Seo, Seungman Jeong, Hyunho Choi, Sanghun Lee
  • Patent number: 8894219
    Abstract: An optical projection system for projecting an enlarged image on a projection surface is provided. The optical projection system includes an image forming element, a coaxial optical system and a concave mirror. The coaxial optical system and the concave mirror are arranged in this order on an optical path from the image forming element to the projection surface. The coaxial optical system includes lens groups and an aperture stop that share an optical axis. The lens groups include a first lens group and other lens groups. The first lens group has negative refractive power and independently moves in an optical axis direction for adjusting the focus of the optical projection system. The aperture stop is arranged at a position closer to the image forming element than the first lens group that is arranged closest to the concave mirror among the lens groups having the negative refractive power.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: November 25, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Hibiki Tatsuno
  • Patent number: 8882279
    Abstract: An illumination system and a projection device comprising the same are provided. The projection device comprises an imaging system and the illumination system. The illumination system comprises a first light source, a dichroic element, at least one condensing element, a rotary wheel and a light integrating element. The first light source provides a first wave band light, and the rotary wheel has at least one wave band transforming area and a reflecting area. After passing through the dichroic element and the at least one condensing element, the first wave band light will be focused onto the at least one wave band transforming area to be transformed into a second wave band light or be focused onto the reflecting area that will be reflected. The second wave band light and the reflected first wave band light will be focused on the light integrating element by the at least one condensing element.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: November 11, 2014
    Assignee: Delta Electronics, Inc.
    Inventor: June-Jei Huang
  • Patent number: 8872985
    Abstract: Some embodiments provide for a modular video projector system having a light engine module and an optical engine module. The light engine module can provide narrow-band laser light to the optical engine module which modulates the laser light according to video signals received from a video processing engine. Some embodiments provide for an optical engine module having a sub-pixel generator configured to display video or images at a resolution of at least four times greater than a resolution of modulating elements within the optical engine module. Systems and methods for reducing speckle are presented in conjunction with the modular video projector system.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: October 28, 2014
    Assignee: RED.COM, Inc.
    Inventors: James H. Jannard, Stuart J. English, Gregory Alan Prior, Edmund Sandberg, Ryan Newham
  • Patent number: 8870379
    Abstract: A 3D image convertible projection system for viewing an image broadcasted as a 3D image or an image from a 3D DVD, etc., using a general projector in which a general projector receives a left-eye image and a right-eye image for the 3D image in one frame and projects them toward a projection lens. The 3D image projection system is configured so that the left-eye image and the right-eye image having a 2D form, which are projected from a general projector, are magnified so that a vertical magnification rate is 0 and a horizontal magnification rate is 1.5-2.5 times and at the same time divides the images into leftward and rightward directions. The optical system includes a first and second curved surface mirrors or a left and right symmetric eccentric curved surface lens, and a second set of mirrors for reflecting and magnifying the images to be projected toward a screen.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: October 28, 2014
    Inventor: Hae-Yong Choi
  • Patent number: 8864319
    Abstract: An imaging optical system includes a lens unit that includes a plurality of optical elements, and an optical path combining portion that includes a flat plate disposed so as to be inclined with respect to an optical axis of the lens unit, and the lens unit includes a correction portion that has a shape asymmetric with respect to the optical axis in a cross section that is parallel to both a normal of the flat plate and the optical axis.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: October 21, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuhiro Inoko
  • Patent number: 8857996
    Abstract: An illumination optical system include a first lens array including multiple lens cells that split a light beam emitted from a light source into multiple light beams, a second lens array including lens cells that the light beams split by the lens cells of the first lens array are incident thereon, and an optical element configured to illuminate an image display element by superposing light beams emerging from the second lens array on the image display element. At least one of the first lens array and the second lens array includes at least two lens cells each having a curved surface that is formed so as to be continuous with a curved surface of an adjacent lens cell, the at least two lens cells being decentered, and at least two lens cells of the first lens array have different radii of curvature.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: October 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takehito Kawasumi
  • Publication number: 20140300873
    Abstract: A laser light source apparatus includes: a laser light source that emits a laser beam; a condenser lens that converges the laser beam emitted from the laser light source; and a light guide unit that propagates and outputs the laser beam converged by the condenser lens, and the laser beam converged by the condenser lens is made incident at an angle other than perpendicular to an incident end face of the light guide unit.
    Type: Application
    Filed: December 12, 2011
    Publication date: October 9, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Noriyuki Miyamoto, Takayuki Yanagisawa, Shuhei Yamamoto, Mitoru Yabe, Yoko Inoue
  • Patent number: 8851682
    Abstract: A display module includes a light emitting element array and a lens array. The light emitting element array includes a plurality of light emitting elements arranged on a substrate and driven by driving signal to emit light. A lens array is configured to focus light emitted by the respective light emitting elements. The lens array includes a plurality of first lens pillars respectively provided on the light emitting elements, a plurality of second lens pillars respectively provided on the first lens pillars and having curved surfaces at tops thereof, and a plurality of lens portions formed so as to cover the first lens pillars and the second lens pillars, the lens portions having curved surfaces at tops thereof. A driving circuit is provided on the substrate.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: October 7, 2014
    Assignee: Oki Data Corporation
    Inventors: Kenichi Tanigawa, Minoru Fujita
  • Patent number: 8820946
    Abstract: A projection optical system substantially consists of a first optical system composed of a plurality of lens groups and a second optical system composed of one reflection mirror having a convex aspherical surface arranged in this order from the reduction side, in which all optical surfaces constituting the first and second optical systems are formed so as to have rotationally symmetrical shapes around one common axis, the projection optical system is configured such that focus adjustment is performed by individually moving two lens groups in the first optical system along the common axis, and the lens disposed on the most magnification side in the reduction side lens group of the two lens groups is a lens having a convex surface on the magnification side, thereby magnifying and projecting an image formed on a conjugate plane on the reduction side to a conjugate plane on the magnification side.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: September 2, 2014
    Assignee: Fujifilm Corporation
    Inventor: Masaru Amano
  • Patent number: 8801198
    Abstract: The light source device includes: a first support that supports one of a light source and a collimator lens condensing; a second support that supports the other of the light source and the collimator lens; and a fixing member that fixes the first support to the second support. The first support includes a first protruding portion that protrudes from the first support toward the second support, the first protruding portion having a through hole therethrough. The second support includes a second protruding portion that protrudes from the second support toward the first support, the second protruding portion having: a receiving portion that receives the first protruding portion; and a receiving hole. A rod portion of a locking member is inserted into the through hole and the receiving hole, and a head portion of a locking member is sealed with a sealant.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 12, 2014
    Assignee: Casio Computer Co., Ltd.
    Inventor: Shigeru Hirosawa
  • Patent number: 8801189
    Abstract: There is provided a laser projector, including: a laser source section for emitting laser beams; a spatial light modulator which modulates the laser beams to generate image light; a projector lens from which the image light is emitted; a beam shaper which shapes the laser beams into a shape of the spatial light modulator; and a pupil uniformizer which makes a light intensity distribution uniform at an exit pupil of the projector lens, wherein the pupil uniformizer is situated between the laser source section and the beam shaper.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: August 12, 2014
    Assignee: Panasonic Corporation
    Inventors: Tetsuro Mizushima, Tatsuo Itoh, Kenichi Kasazumi, Kenji Nakayama
  • Patent number: 8794770
    Abstract: A projection display includes at least one light source, at least one reflective image generator configured to represent frames in a two-dimensional distribution of subareas of same, a projection optics arrangement having a two-dimensional arrangement of optical projection elements and being configured to image an associated subarea of the at least one image generator onto an image plane in each case, so that images of the frames superimpose within the image plane to form an overall picture, and at least one beam splitter arranged within an optical path between the at least one reflective image generator and the two-dimensional arrangement of optical projection elements, on the one hand, and the optical path between the at least one light source and the at least one reflective image generator, on the other hand.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: August 5, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Marcel Sieler, Peter Schreiber, Erik Foerster
  • Publication number: 20140204347
    Abstract: A message display that produces a visible message by projecting an image on a surface such as a wall or floor. A bright light source is provided, preferably including an array of light emitting diodes (“LED's”). The light from this bright source is passed through one or more lenses in a condenser assembly to make it more uniform. The light then passes through an image plate that contains a small version of the image to be displayed. Once the light passes through the image plate it next passes through a focusing assembly. The focusing assembly creates a desired projected image on a target surface such as a wall or floor. The projected image is a representation of the image contained on the image plate.
    Type: Application
    Filed: January 22, 2013
    Publication date: July 24, 2014
    Inventor: Brenda Murphy
  • Patent number: 8777424
    Abstract: A projection display having at least one light source and also regularly-disposed optical channels. The optical channels comprise at least one field lens, to which respectively one object structure to be imaged and also at least one projection lens are assigned. The distance of the projection lenses from the assigned object structures corresponds to the focal distance of the projection lenses while the distance of the object structures to be imaged from the assigned field lens is chosen such that a Köhler illumination of the assigned projection lens is made possible. Then the individual projections are superimposed to form the total image.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: July 15, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Peter Schreiber, Marcel Sieler, Erik Foerster
  • Patent number: RE45258
    Abstract: In a projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light source, the projection optical system includes first and second optical systems arranged along an optical path defining an upstream-downstream direction in the order described from upstream to downstream on the downstream side of the image display panel. The first optical system includes at least one dioptric system and has positive power. The second optical system includes at least one reflecting surface having power and has positive power. The image formed by the image display panel is formed as an intermediate image in the optical path, and the intermediate image is magnified and projected.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 25, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Atsushi Takaura, Kazuhiro Fujita, Nobuo Sakuma