Prismatic Type Patents (Class 362/337)
  • Patent number: 10345611
    Abstract: An illumination system including at least one light source such as an electroluminescent element, e.g. a light emitting diode (LED), and at least one optical element whose surface is structured by diffraction and/or refraction type optical microstructures. In order to shape the beam, the optical element includes at least two sections whose optical microstructures and therefore optical properties are different from one another. The pattern of the microstructures in each of the at least two sections is, at least over a predetermined angular range, rotationally symmetric with respect to the optical axis or another symmetry axis.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: July 9, 2019
    Assignee: ams Sensors Singapore Pte. Ltd.
    Inventors: Daniel Dias, Ville Kettunen, Markus Rossi
  • Patent number: 10323823
    Abstract: The lighting device, in particular the fog light for motor vehicles comprises a lighting unit for emitting light beams and a lens on which the light beams fall, configured as a Fresnel lens to form light paths in the plane (zy), which is perpendicular to the axis (x) passing through the center of the lens and located at a distance in front of the lens. The lens is not axially symmetrical with respect to the axis (x) and its zones are configured to form a light path whose height (v) is smaller than its width (s).
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: June 18, 2019
    Assignee: VARROC LIGHTING SYSTEMS, S.R.O.
    Inventors: Tomas Gloss, Jakub Hruska
  • Patent number: 10302275
    Abstract: A light transmissive structure includes a light transmissive substrate having first and second opposing faces and array of microprism elements on the first face. A respective microprism element includes at least one ring comprising a plurality of microstructure pyramids that is rotated randomly and/or pseudorandomly on the first face about an axis that is orthogonal to the substrate relative to at least one other microprism element. The light transmissive structure is configured to receive light from a light source facing the first face and distribute the light emerging from the second face in a 2D batwing distribution.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 28, 2019
    Assignee: Bright View Technologies Corporation
    Inventor: Ken G. Purchase
  • Patent number: 10190744
    Abstract: Provided is a vehicular marker lamp including a planar light emitter; and a lens including an incident portion formed on a surface facing the planar light emitter. A plurality of cross-sectionally triangular prisms are arranged in the incident portion in a state where the vertexes of triangular prisms face the planar light emitter side. Each of the prisms includes an incident surface formed on one surface in the arrangement direction to make a light from the planar light emitter is incident and a light-shielding portion formed on a surface opposite to the incident surface to shield incidence of the light from the planar light emitter.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 29, 2019
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Masaya Shido, Toru Ito
  • Patent number: 9874663
    Abstract: An optical element has a first surface and a second surface, wherein a tooth structure having a multiplicity of teeth oriented in a second direction is arranged on the first surface, a stepped lens having a multiplicity of steps oriented in a first direction is arranged on the second surface, and the tooth structure forms a total internal reflection lens.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: January 23, 2018
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Ulrich Streppel
  • Patent number: 9690034
    Abstract: An illumination device (10) is provided with the following: light sources (11); a light-guide member (12 (13)) that includes a light entry region (Is) and a light exit region (Os) which emits planar light; light entry portions (13a) that are formed in the light entry region (Is) and that oppose the light sources (11); and bright line suppression portions (20) that are formed in the areas between the light entry portions (13a) at the front side of the light entry region (Is), and that include bright line suppression prisms (21) which have a shape that changes the angle of the light emitted in a direction spreading out from the light sources (11) to a direction closer to the optical axes.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: June 27, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ichiro Umekawa, Hirofumi Oosawa, Takeshi Ishida, Ryuzo Yuki, Masaki Kageyama, Shugo Yagi
  • Patent number: 9534765
    Abstract: A light fixture with coextruded components is disclosed. Embodiments of the present invention provide a solid-state light fixture suitable for use in commercial environments. A light fixture according to example embodiments of the invention includes an LED light source and a coextruded optical assembly. In some embodiments, the reflector portion of the assembly includes a thin skin of reflective material. In some embodiments, the assembly includes an interlocking mechanical interface between the reflector and lens portions of the assembly. In some embodiments, the lens portion of the assembly includes two lens plates. In some embodiments, a longer fixture can be assembled by using two, coextruded portions of an optical assembly, where these portions are adapted to be joined end-to-end. Reinforcing members can be used in the reflector and lens assembly.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: January 3, 2017
    Assignee: Cree, Inc.
    Inventors: Paul Kenneth Pickard, Dong Lu, James Michael Lay, Joe Janisch
  • Patent number: 9022616
    Abstract: The disclosure relates to a lighting fixture having a base, a solid-state light source, and a lens assembly. The optic has a body with a cavity and a proximal opening. The lens assembly is coupled to the base at the proximal opening. The solid-state light source is mounted to the base and is configured to direct light into the cavity via the proximal opening. At least a portion of an interior surface of the body includes a number of elongated prisms. At least a portion of the exterior surface of the body includes a number of diffusers.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Cree, Inc.
    Inventor: David N. Randolph
  • Patent number: 8979328
    Abstract: An optical lens for increasing viewing angle of light from a light emitting diode includes a bottom surface, a reflective surface, and a side surface connected between the bottom surface and the reflective surface. The light emitting diode is received in the bottom surface. The reflective surface defines a cone-shaped recess and is concaved from a top of the optical lens towards the bottom surface. A vertex angle of the cone-shaped recess defined by the reflective surface is less than or equal to 60 degrees.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: March 17, 2015
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Li-Ying Wang He
  • Patent number: 8894250
    Abstract: In an illuminating device, when exiting lights come out from a lens sheet, the optical paths of the exiting lights are deflected in a direction opposite to an optical axis of a light source by means of a plurality of prisms which are included in a first lens group arranged on an inward side of the lens sheet located adjacent to the optical axis of the light source and each of which has a inclined face facing toward the optical axis of the light source, wherein the exiting lights from the light source via the first lens group of the lens sheet are adapted to mix with exiting lights from the light source via a second lens group located outside the first lens group, whereby the degree of color unevenness is reduced, that appears inherently when a pseudo white LED is used as the light source of the illuminating device.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: November 25, 2014
    Assignee: Minebea Co., Ltd.
    Inventors: Masaki Asai, Koji Sakai, Ryohei Takayama
  • Patent number: 8870409
    Abstract: A light tube includes a tube body, at least one light emitting diode, and a transparent cover. The light emitting diode is assembled with the tube body. The transparent cover is disposed on the tube body to cover the light emitting diode and has a roof portion and two side arm portions. A first microstructure region and a second microstructure region are formed on a surface of the roof portion corresponding to the light emitting diode. The second microstructure region extends from two ends of the first microstructure region. A third microstructure region is formed on a surface of each side arm portion corresponding to the light emitting diode. A microstructure density of the second microstructure region is less than or equal to a microstructure density of the first microstructure region, and is greater than or equal to a microstructure density of the third microstructure region.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: October 28, 2014
    Assignees: Dongguan Masstop Liquid Crystal Display Co., Ltd., Wintek Corporation
    Inventors: Zhi-Ting Ye, Ming-Chuan Lin, Hung-Pin Chang, Wen-Chieh Wu
  • Patent number: 8803105
    Abstract: An optical field enhancement device which includes a transparent substrate having a transparent fine uneven structure on a surface and a metal film formed on a surface of the fine uneven structure on the surface of the substrate and allows projection of excitation light and detection of detection light either from a front surface side of the metal film or from a back surface side of the transparent substrate.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: August 12, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Masayuki Naya, Shinya Hakuta
  • Patent number: 8727581
    Abstract: Apparatus, for illuminating a feature on a transparent light transmitting substrate or window, including an optical arrangement secured to one of the surfaces of the substrate for directing light into the substrate at an incident angle selected for propagation of light via total internal reflection (TIR) along the substrate. The optical arrangement has a rotationally symmetrical optic for surrounding a light source, a planar output surface, and an input surface divided into at least one curved zone bounded by a surface discontinuity, and at least one coupling material, with a refractive index greater than air, to optically and physically couple the output surface to the substrate.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: May 20, 2014
    Inventor: Robert Saccomanno
  • Patent number: 8714770
    Abstract: A lighting device (1) is configured to include: an elongated flat substrate (2); a plurality of semiconductor light sources (3) arranged on the flat substrate in a longitudinal direction of the flat substrate; and a lens plate (4) disposed to face the semiconductor light sources, wherein the lens plate includes a lens-light-incident surface facing the semiconductor light sources and includes a lens-light-emitting surface, a first lens section (5) is formed on one of the lens-light-incident surface and the lens-light-emitting surface and distributing the light emitted by the semiconductor light source in the longitudinal direction, a second lens section (9) is formed on the other one of the lens-light-incident surface and the lens-light-emitting surface for distributing the light emitted by the semiconductor light sources in a width direction, and the first lens section has a curvature surface unit including two or more convex section curvature surfaces having different curvature radii and formed adjacent in t
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: May 6, 2014
    Assignees: Nichia Corporation, Koito Electric Industries, Ltd.
    Inventors: Masaru Kato, Kazunori Watanabe
  • Patent number: 8690395
    Abstract: The invention relates to a light emitting device (2) comprising a primary light source (10), a light converting medium (14) and an optical structure (16). The primary light source is disposed on a substrate (11). The light converting medium comprising phosphors (14) is arranged for converting at least a part of the primary light to secondary light (II) of a different wavelength. The light converting medium is in a remote phosphor configuration. The optical structure is arranged for receiving a part of the secondary light (II) from the light converting medium and is configured for redirecting the part of the secondary light in a direction towards the first plane but away for the primary light source (10). By providing an optical structure redirecting the secondary light away from the primary light source, absorption of the secondary light by the primary light source can be substantially reduced or eliminated.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: April 8, 2014
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Erno Fancsali, Willem Hendrik Smits, Pascal Jean Henri Bloemen
  • Patent number: 8668371
    Abstract: Light redirecting film comprises a thin optically transparent substrate having a pattern of individual optical elements formed as projections on a light exit surface of the film. At least some of the projections comprise a dome-shaped surface on the light exit surface.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: March 11, 2014
    Assignee: Rambus Delaware LLC
    Inventors: Jeffery R. Parker, Timothy A. McCollum, Robert M. Ezell
  • Patent number: 8633641
    Abstract: A side illumination lens for a LED is disclosed. One of the embodiments includes a bottom cavity, an incident surface, four total internal reflective surfaces, and a side refractive surface. Light beam emitted by the LED enters the lens through the incident surface. A first portion of the light beam is reflected by the total internal reflection surfaces to the refractive surface and emits out of the lens. The second portion of light beam enters the lens and exits from the refractive surface. A second one of the embodiments is to roughen the side refractive surface for diffusing the exit light beams so that a broader area can be illuminated softly.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: January 21, 2014
    Assignee: Uniled Lighting Taiwan Inc.
    Inventor: Ming-Te Lin
  • Patent number: 8628221
    Abstract: A lamp comprises a base, at least one light source arranged on the base, a cover positioned on the base and covering the light source, and a structured film arranged adjacent to the light source. The structured film has at least one micro structure configured for guiding part of the light backward emitted from the light source.
    Type: Grant
    Filed: January 29, 2011
    Date of Patent: January 14, 2014
    Assignee: Chi Lin Technology Co., Ltd
    Inventors: Che-Wei Wang, Ji-Pin Wang, Yao-Chien Cheng
  • Patent number: 8622585
    Abstract: A lighting device has multiple light sources each having a primary optics; and a secondary optics for the multiple light sources; such that at the secondary optics the radiation patterns emitted from the multiple light sources have a substantially uniform luminance; and such that the secondary optics transforms the radiation pattern from the multiple light sources into an elliptical spot of light of substantially uniform luminance.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: January 7, 2014
    Assignee: Osram Gesellschaft mit beschraenkter Haftung
    Inventors: Alessandro Scordino, Alessandro Brieda, Giovanni Scilla
  • Patent number: 8602621
    Abstract: The present invention relates to an optical element including a light guide, into which light from one or more light-emitting diodes in a light unit arranged at one end of the light guide is injected, and a reflector arranged at the other end of the light guide capable of reflecting light incident on the reflector. The light guide further includes a prismatic surface comprising a plurality of prisms, each prism being arranged at an angle to an axial direction of the light guide, for guiding the light emitted from the light unit towards the output end of the light guide. The present invention also relates to a light source including an optical element according to the present invention, the light source being arranged for retrofitting into a luminaire employing an incandescent light source.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: December 10, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Yun Li, Ye Liu
  • Patent number: 8596818
    Abstract: An optical member includes; an incident surface on which light is incident, an exit surface which is disposed substantially opposite the incident surface and from which the light exits, a prism pattern disposed on the exit surface, and a diffusion pattern which is aligned with the prism pattern and is disposed in a total internal reflection region in which the light incident on the incident surface is totally internally reflected by the prism pattern and output through the incident surface.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang-Woo Lee, Seung-Mo Kim, Jin-Sung Choi
  • Patent number: 8545060
    Abstract: A light fixture, comprising a matrix, a plurality of electrical sockets fixedly secured to the matrix and forming a rigid matrix of electrical sockets electrically interconnected in two dimensions. One or more light emitting diode modules are individually removable and replaceable within any individual electrical socket within the matrix. Each individual light emitting diode module includes a base and a light emitting diode, wherein the base is configured and arranged for fitted electrical engagement within the electrical socket.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: October 1, 2013
    Inventor: Deloren E. Anderson
  • Publication number: 20130242567
    Abstract: A lens and a bulb-type light emitting device lamp employing the lens are disclosed. The lens for changing light distribution of incident illumination light and emitting the illumination light includes a light incident surface that is curved, a top surface that is planar and via which at least a portion of light incident via the light incident surface is emitted, and a side surface that is uneven and via which at least a portion of light incident via the light incident surface is emitted. The bulb-type light emitting device lamp includes the lens and a light emitting device package including one or more light emitting devices.
    Type: Application
    Filed: December 19, 2012
    Publication date: September 19, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Tetsuo ARIYOSHI
  • Patent number: 8491125
    Abstract: A lighting device configured to efficiently combine light beams emitted from a plurality of light sources, and to emit high output light while minimizing light loss, and a projection type display apparatus including the lighting device. The lighting device includes: a first light source and a second light source; two converging lenses for converging light beams emitted from the first and second light sources; two right-angle prisms for bending the light beams emitted from the first and second light sources; and a composite rod integrator for combining the light beams emitted from the first and second light sources. Between an exit surface of each right-angle prism and an incident surface of the composite rod integrator, a predetermined air gap is provided. The focal point of each converging lens is located on an incident surface of each right-angle prism.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: July 23, 2013
    Assignee: Panasonic Corporation
    Inventors: Shigekazu Yamagishi, Hiroki Sugiyama, Hiroshi Kitano, Yoshimasa Fushimi, Hirokazu Sakaguchi
  • Patent number: 8403539
    Abstract: A light guide guides light from a light emitter that is adjacent to an aperture of an electronic device. The light is eventually emitted from the aperture, to thereby provide lighting. The light guide can include a plurality of prisms which can thereby permit reduction in the overall thickness of the electronic device.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: March 26, 2013
    Assignee: Research In Motion Limited
    Inventors: Hsin Chin Lee, Antanas Matthew Broga
  • Patent number: 8398274
    Abstract: Light redirecting film including a thin optically transparent substrate having a pattern of individual optical elements of well-defined shape on at least one surface that are quite small relative to the length and width of the surface. At least some of the optical elements have at least one flat surface and at least one curved surface, and intersecting each other over an intersection volume of the intersecting optical elements.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: March 19, 2013
    Assignee: Rambus International Ltd.
    Inventors: Jeffery R. Parker, Timothy A. McCollum
  • Patent number: 8348473
    Abstract: An illumination optical system includes a prism disposed on an incident optical axis and a lens that is disposed between the light source and an incident surface of the prism or between an emitting surface of the prism and an illuminated object, at least one of the reflection surfaces being a transmission/reflection surface. Additionally, an illumination optical system includes a prism having a surface that is disposed so as to obliquely intersect with an incident optical system, that transmits a part of the entering light to be emitted therefrom, and that deflects at least part of the rest of the light in a direction that intersects with the incident optical axis to be emitted therefrom. Furthermore, an illumination optical system has a rod lens that is disposed so that a longitudinal direction thereof is inclined with respect to an incident optical axis is provided.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: January 8, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventors: Yuji Kamo, Hideyasu Takato, Tsutomu Sasamoto
  • Patent number: 8317368
    Abstract: Light redirecting film including a thin optically transparent substrate having a pattern of individual optical elements of well-defined shape on at least one surface that are quite small relative to the length and width of the surface. At least some of the optical elements have at least one flat surface and at least one curved surface, and intersecting each other over an intersection volume of the intersecting optical elements.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: November 27, 2012
    Assignee: Rambus International Ltd.
    Inventors: Jeffery R. Parker, Timothy A. McCollum
  • Patent number: 8313218
    Abstract: A lighting device and a gap member and a lens used in a lighting device. The lens may include a circular incident surface that has a furrow surface crossing a surface and prism surfaces formed at both sides of the furrow surface; and an exit surface that reflects and transmits light traveling inside through the incident surface to the outside. The gap member may include a ring-shaped reflective portion having a declined surface toward the center; and a ring-shaped wall extending downward coaxially with the reflective portion, and has a flat ring shape. The lighting device may include a substrate; a light emitting unit including a plurality of LEDs mounted on the substrate; a case body accommodating the light emitting unit; a lens disposed on the light emitting unit; a first waterproof ring disposed around the lens; and a case cover having an opening that exposes the lens, and combined with the case body and the first waterproof ring.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: November 20, 2012
    Assignee: LG Innotek, Co., Ltd.
    Inventors: Sung Ho Hong, Hyun Min Kim, Dong Nyung Lim, Eun Hwa Kim
  • Patent number: 8303141
    Abstract: A total internal reflection (TIR) lens has an integrated lamp cover adapted to a lamp of a desired form factor (e.g., PAR-38). The size and shape of the TIR lens can be adapted to optimize the light output of the lamp with little regard to the desired form factor. The integrated lamp cover can extend the front surface of the TIR lens in a direction transverse from the optical axis.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: November 6, 2012
    Assignee: LedEngin, Inc.
    Inventor: Wu Jiang
  • Patent number: 8297802
    Abstract: An optical film includes a body and a plurality of first linear protrusions. The body has a first surface and a second surface opposite to the first surface. The first linear protrusions are disposed on the first surface, and each first linear protrusion is extended along a first direction and has a first curvy ridge line departing from the first surface, wherein the first curvy ridge lines are concave towards a fixed direction. When the first curvy ridge line is located on a suppositional plan, the suppositional plan is not parallel to the first surface. A ratio of a maximum distance between each of the first curvy ridge line and the first surface over a minimum distance between the corresponding first curvy ridge line and the first surface is greater than 1 but less than 8.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: October 30, 2012
    Assignee: Wintek Corporation
    Inventors: Zhi-Ting Ye, Chun-Chih Huang
  • Patent number: 8186838
    Abstract: The invention discloses an optical lens for a light-emitting device. The optical lens includes a translucent body which has a concave inner surface to which light is incident. The inner surface includes a first region and a second region opposite to the first region. The first region and the second region are both substantially straight planes and extend inclinedly from the edge of the inner surface to the center of the inner surface respectively, so as to connect with each other. Thereby, the optical lens of the invention is capable of contributing to an elliptic light field.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: May 29, 2012
    Assignee: Edison Opto Corporation
    Inventor: Pin-Chun Chen
  • Patent number: 8167462
    Abstract: An illumination lens including a first part being free of prismatic patterns, a second part including prismatic patterns on both sides of the first part and configured to increase light distribution in the both sides of the first part, and a lens cover covering the first and second parts with the first and second parts being disposed on a substantially same plane under the lens cover.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: May 1, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Eun Hwa Kim, Dong Nyung Lim, Hyun Min Kim, Sung Ho Hong
  • Patent number: 8134780
    Abstract: A prism includes a light incident portion that has first and second convex portions, the first and second convex portions each are a convex portion that refracts rays of light incident to a prism body and reduces a spread angle after incidence to the prism body via the convex portion to be smaller than that before the incidence, the spread angle is an angle between a given two of the rays, a first reflecting surface, provided on the prism body, that can reflect a first ray of light that has entered the prism body via the first convex portion, a first emitting portion, provided on the prism body, that emits, to the outside, the first ray reflected by the first reflecting surface, and a second emitting portion that emits, to the outside, a second ray of light that has entered the prism body via the second convex portion.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: March 13, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Ominato, Takeshi Kitakata, Shunsuke Ichizawa
  • Patent number: 8128260
    Abstract: A spread lens including a first lens surface through which the emitted light from the light emitting device is inputted; a second lens surface spreading the inputted light to an outside; refraction parts which extend between both side ends of each of the first and second lens surfaces, are formed in a concave-convex shape, and refract the emitted light from the light emitting device; and support parts which extend at both side ends of the second lens surface and separate the refraction parts and the light emitting device from each other.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: March 6, 2012
    Assignee: Samsung LED Co., Ltd.
    Inventor: Tetsuo Ariyoshi
  • Patent number: 8079734
    Abstract: A lighting device includes a light source, first and second beam-directing prism elements, and a transmission device. The light source emits a light beam. The first beam-directing prism element is arranged in a first direction. The second beam-directing prism element is arranged in a second direction and partially overlapped with the first beam-directing prism element. When the light beam passes through different regions of the first and second beam-directing prism elements, different bending angles are resulted. The transmission device is connected to the first and second beam-directing prism elements for driving movement of the first beam-directing prism element in the first direction and movement of the second beam-directing prism element in the second direction. Accordingly, the light beam emitted by the light source simultaneously passes through one of the regions of the first beam-directing prism element and one of the regions of the second beam-directing prism element.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: December 20, 2011
    Assignee: Lite-On IT Corporation
    Inventor: Sheng-Fa Hou
  • Patent number: 8068288
    Abstract: A secondary illumination optic, principally directed toward managing light from light emitting diode illumination sources having a primary optical element, is provided comprising a lens combination arranged along the optical axis, a central convex lens portion being centrally positioned on the optical axis, and a surrounding total internal reflection lens portion, with the central optic having a first and incident surface and a second and exiting surface, both comprising refractive faceted optical lens elements, and the total internal reflection optic lens portion having a cylinder shaped aspheric first and incident surface, a second and internal total reflection surface, and a third and exiting surface comprising refractive faceted optic lens elements, wherein, being constructed of resin having optical characteristic, the central and total internal reflection lens portions are molded as an integrated assembly from an optical resin providing a stepped tulip type lens, thinner and higher yielding than prior ar
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: November 29, 2011
    Assignee: Triformix, Inc.
    Inventor: David S Pitou
  • Patent number: 7972041
    Abstract: A light emitting diode (LED) package includes a base, a body and several LED chips. The body having an end surface is disposed on the base. A peripheral recess is formed in the end surface. The LED chips are disposed on a bottom of the peripheral recess for providing sidelight of the LED package. The LED package is connectable to a light guide pipe including a column having an external circumferential surface and an internal reflection surface, and a plurality of prism structures disposed between or on at least one of the external circumferential surface and the internal reflection surface for scattering light received by the light guide pipe from the LED package.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: July 5, 2011
    Assignee: Chimei Innolux Corporation
    Inventor: Chen-Pin Hung
  • Publication number: 20110080745
    Abstract: The invention discloses an optical lens for a light-emitting device. The optical lens includes a translucent body which has a concave inner surface to which light is incident. The inner surface includes a first region and a second region opposite to the first region. The first region and the second region are both substantially straight planes and extend inclinedly from the edge of the inner surface to the center of the inner surface respectively, so as to connect with each other. Thereby, the optical lens of the invention is capable of contributing to an elliptic light field.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 7, 2011
    Inventor: Pin-Chun CHEN
  • Patent number: 7866855
    Abstract: A reflector (14) for a luminaire comprises a generally parabolic wall (28) having series of main right-angled prisms (16) and an interleaved series of transition prisms (18). The main and transition prisms have essentially the same shapes and follow the same overall curvature to control the illumination. The transition prisms transition into the main prisms by merging a peak of a transition prism into the valley between adjacent main prisms in a short transition zone (20). Thus, the transition zone has only a small effect on the overall lighting pattern.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: January 11, 2011
    Assignee: ABL IP Holding LLC.
    Inventor: Yaser S. Abdelsamed
  • Patent number: 7841749
    Abstract: A backlight assembly includes a light source and an optical member disposed over the light source and including a surface that has a plurality of lens-shaped portions and at least one prism-shaped portion.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: November 30, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Soo Kim, Jung-Wook Paek, Byung-Yun Joo, Ju-Hwa Ha, Jin-Sung Choi
  • Patent number: 7837359
    Abstract: An optical device for distributing light produced by a white LED or other light-producing device includes a lens portion that refracts the light to provide a desired light intensity distribution, and a collimating portion that internally reflects light from the white LED. The optical device may be molded from an acrylic polymer material or the like. The reduced thickness of the device facilitates low cycle times and reduces warpage or other distortion that would otherwise be generated during the molding process.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: November 23, 2010
    Assignee: Innotec Corporation
    Inventors: Joshua M. Danek, Thomas J. Veenstra
  • Patent number: 7815346
    Abstract: A method for calculating out an optimum arrangement pitch between each two LED chip package units, including: providing a backlight module with a predetermined brightness value and a predetermined material information that a customer needs; determining what brightness level and amount of LED chip package units need to be used by a designer according to the brightness value and the material information of the backlight module; and dividedly arranging the LED chip package units determined by the designer on a light-entering area of the backlight module in order to define what the optimum arrangement pitch between each two LED chip package units is.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: October 19, 2010
    Assignee: Harvatek Corporation
    Inventors: Bily Wang, Shih-Yu Wu, Wen-Kuei Wu
  • Patent number: 7800709
    Abstract: An exemplary prism sheet according to a preferred embodiment includes a transparent main body. The transparent main body includes a light input surface and a light emitting surface opposite to the light input surface. A plurality of curved elongated V-shaped protrusions are formed on the light emitting surface. Each of the curved elongated V-shaped protrusions extends along a circular arc. The circular arcs have a same curvature, and centers of the circular arcs are aligned apart and in a straight line. A liquid crystal display device using the prism sheet is also provided.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: September 21, 2010
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Shao-Han Chang
  • Patent number: 7784958
    Abstract: The invention provides a novel lens sheet that can control a visual field range with high brightness while reducing side lobe generated in a conventional prism sheet, a low-profile, high-strength, high-display-quality optical sheet in which the lens sheet and a diffuser plate are optically integrated, and a backlight unit and display apparatus, in which the optical sheet is used.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: August 31, 2010
    Assignee: Toppan Printing Co., Ltd.
    Inventor: Tomohiro Nakagome
  • Patent number: 7771074
    Abstract: The invention concerns a device for projecting a linear optical marking onto at least one boundary of a room, such as floor surface for example, comprising a light source (12) that emits laser radiation along an optical axis (16) as well as a cuboid lens (14) connected in series with the light source, penetrated by the optical axis and reflecting as well as refracting the radiation. To facilitate fanning and reflecting of light originating from the light source through constructively simple means, the invention proposes that provided in the frontal surface (20) is a channel-shaped depression (40) and provided in the rear surface (22) is a projection (24), both of which are geometrically designed and arranged so that the radiation can be totally reflected and that totally reflected radiation striking the depression can be fanned out, where the optical marking runs to both transverse surfaces of the lens.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: August 10, 2010
    Assignee: Stabila Messgerate Gustav Ullrich GmbH
    Inventors: Gabriel Kallabis, Daniel Busam
  • Patent number: 7766515
    Abstract: A light transforming method and device that includes a lens having one or more specifically shaped surfaces designed to generate an output image by directing the appropriate amount of electromagnetic energy from a substantially collimated beam to the required regions of the output image for the purpose of recreating the output image. The lens has one or more non-imaging radiant energy distribution surfaces that is of a non-uniform. shape.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: August 3, 2010
    Assignee: Dragonfish Technologies, LLC
    Inventors: Patrick Jeffery Condon, Mark Bryan Pruss
  • Patent number: 7744235
    Abstract: In a lighting device, suppose a distance between centers of linear light sources is D and a distance between the linear light sources and a light control member is H and a function representing an outgoing light intensity toward a normal direction at a position coordinate X (light source position shall be X=0) and f(X?D)+f(X)+f(X+D), in a range of ?D/2?X?D/2, a ratio between g(X)min and g(X)max is 0.6 or more, a minimum value Xmin is in a range of ?3.0D?Xmin??0.5D, a maximum value Xmax is in a range of 0.5?Xmax?3.0D, and a cross-sectional shape of a given convex portion in X direction is formed of areas with (2N+1) number of different gradients represented by a certain relationship obtained from D, H and X.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: June 29, 2010
    Assignee: KURARAY Co., Ltd.
    Inventors: Satoko Horikoshi, Ikuo Onishi, Shigeki Kikuyama, Yoshiki Mukoo, Tsuyoshi Kanda
  • Patent number: 7731366
    Abstract: An optical system is provided. The optical system comprises a first polarizing beamsplitter (PBS), a first reflecting image-forming device, and a first quarter-wave retarding element. An optical system is also provided that comprises an image-forming device, a reflective polarizing layer, at least a first birefringent element disposed on an optical path between the image-forming device and the polarizing layer, and a quarter-wave retarding element. Further provided is an optical system comprising a color combiner unit, at least two polarizing beamsplitters (PBSs), and a first quarter-wave retarding element. The present application also provides methods of compensating for birefringence in an image projection system.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: June 8, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: David J. W. Aastuen, Charles L. Bruzzone, Jiaying Ma
  • Publication number: 20100128489
    Abstract: An apparatus and method is characterized by providing an optical transfer function between a predetermined illuminated surface pattern, such as a street light pattern, and a predetermined energy distribution pattern of a light source, such as that from an LED. A lens is formed having a shape defined by the optical transfer function. The optical transfer function is derived by generating an energy distribution pattern using the predetermined energy distribution pattern of the light source. Then the projection of the energy distribution pattern onto the illuminated surface is generated. The projection is then compared to the predetermined illuminated surface pattern to determine if it acceptably matches. The process continues reiteratively until an acceptable match is achieved.
    Type: Application
    Filed: January 20, 2010
    Publication date: May 27, 2010
    Applicant: ILLUMINATION MANAGEMENT SOLUTIONS INC.
    Inventors: Ronald G. Holder, Greg Rhoads