Including Diverse Refracting Elements On One Surface Patents (Class 362/336)
  • Patent number: 10663141
    Abstract: An illumination device includes a radiation-emitting optoelectronic component and Fresnel optics including a Fresnel structure having annular ridges and annular grooves, wherein the ridges are configured as closed rings, the ridges and the grooves enclose an optical midaxis of the Fresnel structure, at least one first section of a ridge has a different shape in a predetermined angle range in relation to the midaxis than a second section of the ridge in a second angle range, and the ridges of the Fresnel structure include an inner face and an outer face in cross section through a plane of the midaxis, the inner face facing toward the midaxis in the radial direction, the outer face facing away from the midaxis in the radial direction, the outer face of at least one ridge having different angles in relation to the midaxis in two predetermined angle ranges in relation to the midaxis.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 26, 2020
    Assignee: OSRAM OLED GmbH
    Inventor: Ulrich Streppel
  • Patent number: 10209566
    Abstract: A light-emitting device includes: a base having an upper surface; a plurality of light sources located on the upper surface of the base; a first lenticular lens sheet disposed to face the base with the light sources between the first lenticular lens sheet and the base, the first lenticular lens sheet including a first plurality of grooves; a half mirror located on an upper surface side of the first lenticular lens sheet; and a second lenticular lens sheet disposed on an upper surface side of the half mirror, wherein the second lenticular lens sheet includes a second plurality of grooves extending in a direction that intersects a direction in which the first plurality of grooves of the first lenticular lens sheet extend.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: February 19, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Ryohei Yamashita, Shimpei Sasaoka, Toshiyuki Hashimoto
  • Patent number: 9674407
    Abstract: A guidance system (10) is provided for interactive image capture for use with a device (12) having a camera (14) with a camera lens(s) 16. The system (10) includes a housing (20) configured to be mounted on the device (12), and a light source (22) mounted in the housing (20). The housing (20) and the light source (22) are configured to project a lighted boundary (24) onto a surface (26) in response to a control signal, with the boundary (24) defining a region of image capture (27) by the camera (14). The light source (22) is configured to selectively project the boundary (24) in a first color and to selectively project the boundary (24) in a second color, with the first and second colors providing feedback information to a user regarding the statue of image capture by the camera.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: June 6, 2017
    Assignee: Honeywell International Inc.
    Inventors: Kartavya Mohan Gupta, Lalitha M. Eswara, Gowrisankar M R, Charles Cameron Brackett
  • Patent number: 9416939
    Abstract: Methods and apparatus related to a textured lens (30, 130). The textured lens includes a textured portion (40, 140) having plurality of unique textures. The lens may be utilized in a LED-based lighting fixture (10, 110) to, for example, reduce the presence of color banding and/or color shadows present in the light output of the lighting fixture. The textured portion may extend across all or portions of the lens surface.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: August 16, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Eric Anthony Roth, Luc Guy Louis Lacroix
  • Patent number: 9039252
    Abstract: The invention relates to an optical device for imparting an asymmetrical light beam. The optical device comprises a lens (10) having an exit diopter (12) having an exit surface consisting of a convex surface (16) defining a curved rear portion (18) having a first curvature and a curved front portion (19) having a second curvature different from the first curvature. Furthermore the lens (10) comprises an entry diopter (11) including at least one concave lodging (13) for lodging at least one light source, the surface of the concave lodging (13) facing at least partly the curved rear portion (18).
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: May 26, 2015
    Assignee: Koninklijkle Philips N.V.
    Inventor: Vincent Treanton
  • Patent number: 8960960
    Abstract: The present invention provides an illumination beam shaping system, which enables the emergent surface of a lighting system of light excitation chips to emit a light beam of uniform illumination brightness. The present invention uses a dividing device, structured from curved lenses arranged in an array, to effect a pre-dividing operation on the total quantity of light from a light excitation chip, after which post-diffusion is carried out to form a light beam with uniform illumination brightness. A plurality of conical light beams in an array are shaped and emerge from an output side, and the bottom portion of each of the conical light beams form an actual optical surface, which act on an optical diffusing component for refraction and diffusion processing, thereby enabling the emergent face of the system to obtain uniform illumination brightness.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: February 24, 2015
    Inventor: Ching-Wei Wei
  • Patent number: 8905596
    Abstract: An optical lens for adjusting viewing angle of and diffusing light emitted from a light emitting diode includes a light incident surface and a light emitting surface. The light incident surface is cone-shaped and concave towards the light emitting surface. The light emitting surface is cone-shaped and concave towards the light incident surface. A plurality of annular protrusions is formed on the light incident surface. The annular protrusions are coaxial and a center of each of the annular protrusions is located at an optical axis passing through a vertex of the light emitting surface and a vertex of the light incident surface. A lighting device having the optical lens and the light emitting diode is also provided.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: December 9, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Li-Ying Wang He
  • Patent number: 8899794
    Abstract: A pear-shaped light-emitting diode (LED) light bulb housing is provided with a plurality of light-dispersing thickness variations in the bulb envelope. Dimples, bumps, or v-shaped grooves are provided in a middle portion of the bulb envelope in order to uniformly disperse light from LEDs as the light passes through the bulb envelope.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 2, 2014
    Assignee: BBY Solutions, Inc.
    Inventors: Farhad Nourbakhsh, Xiyuan He, Dave Carroll, Wendell Carroll
  • 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: 8888333
    Abstract: Light redirecting film is disclosed. The light redirecting film includes a first major surface that includes a plurality of first microstructures that extend along a first direction. The light redirecting film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is in a range from about 4% to about 20% and an optical clarity that is in a range from about 20% to about 60%. The light redirecting film has an average effective transmission that is not less than about 1.55.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: November 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Robert A. Yapel, Mitchell A. F. Johnson, Tri D. Pham, Joseph T. Aronson, Steven D. Solomonson, Scott R. Kaytor, Steven J. McMan, Fei Lu, Steven H. Kong, Slah Jendoubi, Gary T. Boyd
  • Patent number: 8864344
    Abstract: The present invention relates to a secondary optical lens for a light emitting diode (“LED”) light projector, comprising at least one lens unit, wherein the lens unit consists of a refraction portion in the centre and a total internal reflection portion on the outer ring; the central refraction portion has a convex surface on the bottom and is attached with a plurality of micro lenses; the bottom attached with a micro lens array; the total internal reflection portion on the outer ring of the lens unit comprises a cylindrical light incident surface with a slight draft angle, and a total internal reflection surface on the outer side, which adopts a diamondoid polyhedral flake design; and the top of the lens unit is a smooth plane surface used as the light emitting surface.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: October 21, 2014
    Assignee: Huizhou Light Engine Limited
    Inventors: Jin Bo Jiang, Tin Po Chu, Wa Hing Leung
  • Patent number: 8814391
    Abstract: A light guiding structure includes a light transmissive body and microstructures; the light transmissive body includes an upper conical groove and a lower accommodating groove, and the upper conical groove has a curved surface with a continually varied slope; the microstructures are disposed on the light transmissive body. A lighting device includes a circuit board, a light source and the aforesaid light guiding structure; the light source and the light guiding structure are disposed on the circuit board, and the light source is accommodated within the lower accommodating groove.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: August 26, 2014
    Assignee: Luxingtek, Ltd.
    Inventors: Zhi-Wei Koh, Chi-Jen Kao, Wen-Chiun Ing, Wei-Hsin Hou
  • Patent number: 8810803
    Abstract: A fragmented lens system for creating an invisible light pattern useful to computer vision systems is disclosed. Random or semi-random dot patterns generated by the present system allow a computer to uniquely identify each patch of a pattern projected by a corresponding illuminator or light source. The computer may determine the position and distance of an object by identifying the illumination pattern on the object.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: August 19, 2014
    Assignee: Intellectual Ventures Holding 67 LLC
    Inventor: Matthew Bell
  • Patent number: 8777458
    Abstract: Disclosed is a light emitting device to reduce the number of components and elements of a light emitting device and a lighting device having the light emitting device, and simplify and miniaturize the structures of these devices. With this light flux controlling member (4), a total reflecting surface (12) functions like a reflecting member, light from a light emitting element (LED, for example) (3) that is incident from an input surface (13) and that arrives at the total reflecting surface (12) is total-reflected by the total reflecting surface (12) toward the output surface (11) side (including a first output surface (11a) and second output surface (11b)), and the illuminating light from the second output surface (11b) is superimposed upon the illuminating light from the first output surface (11a), so that the light from the light emitting element (LED, for example) (3) is used efficiently and illuminates the illumination target surface (6) over a wide range.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 15, 2014
    Assignee: Enplas Corporation
    Inventors: Akinobu Seki, Kyouhei Yamada, Noriyuki Kawahara, Hiroshi Takatori
  • Patent number: 8746939
    Abstract: A light assembly for motor vehicles includes a body made of a light-transmitting material. The light-transmitting material preferably includes a front light-emitting surface, and a plurality of rear surface portions that provide for inward reflection of light from a plurality of LEDs or other light sources. The reflective surface portions may be in the form of truncated parabolas having flat upper, lower, and/or side surfaces to reduce the overall height and/or width of the light assembly. The reflective surfaces can be oriented at off-axis relative to a vehicle axis to provide a specific beam intensity and direction.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: June 10, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Bruce Preston Williams, Mahendra Somasara Dassanayake
  • Patent number: 8740429
    Abstract: A vehicular lamp can include a guiding lens having a polygonal outline. The guiding lens can include divided portions around the optical axis with an equal center angle. The divided portions can each have an incidence face, a reflection face that can reflect to an optical axis direction light emitted from a light source and having passed through the incidence face, and a light-exiting face that can allow the light from the reflection face to pass therethrough to be projected in an illumination direction of the vehicular lamp. Each divided portion can have an outer-diameter end of the light-exiting face or reflection face at a position farthest from the optical axis within a plane including the maximum radius portion of the divided portion and the optical axis.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: June 3, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Hidetaka Okada, Takuya Matsumaru
  • 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: 8696156
    Abstract: A LED light bulb (10, 110, 210) having at least one LED (30a-d, 230). Light output from the LED is directed toward an offset scattering optics structure (50, 150, 250) that intersects and scatters the light output. The LED may optionally be paired with a narrow beam optical piece (32a-d, 132a-d, 232) to focus and direct the light output of the LED toward the scattering optics structure. A mounting structure (40, 140, 240a, 240b) may support the scattering optics structure and offset the scattering optics structure from the LED.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 15, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Chuan Yuan, Yun Li, Mo Shen, Zhigang Pei, Ye Liu
  • Patent number: 8672485
    Abstract: An illuminating unit and a display apparatus including the illuminating unit are provided. The illuminating unit generates and emits light to a display element of the display apparatus, and includes a light source; a uniformizing unit which uniformizes light from the light source and includes a plurality of uniformizing lenses arranged on an optical path; a condensing unit which condenses light from the uniformizing unit to emit the light to the display element and includes a plurality of condensing lenses sequentially arranged on the optical path, and the uniformizing unit and the condensing unit are arranged based on a width of one of a plurality of cell lenses forming the uniformizing lens and a width of an image displayed in the display element.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: March 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kee-uk Jeon, Sung-tae Kim, Jeong-ho Nho, Won-yong Lee, Kyoung-choul Jang, Seok-chan Hong, Jong-hoi Kim
  • Patent number: 8662715
    Abstract: An optical lens module includes a lens body and a transflective unit. The lens body has a central axis, and has an incident surface, a refractive surface and a side refractive surface. The refractive surface includes a refractive arc-surface and at least one auxiliary refractive surface on the side of the refractive arc-surface. The transflective unit covers the refractive surface. The light incident on the refractive surface is diverged away from the central axis and the diverged light on the transflective unit is partially through the transflective unit and partially reflected to travel out of the lens body through the side refractive surface. The light incident on the transflective unit is reflected to travel out of the lens body through the side refractive surface. The light incident on the side refractive surface is refracted out of the lens body through the side refractive surface.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: March 4, 2014
    Assignees: Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventors: Han-Tsung Hsueh, Jia-Chyi Feng, Shih-Feng Chen
  • Patent number: 8657472
    Abstract: A light redirecting film (100) includes a first major surface (110) that includes first microstructures (150) that extend along a first direction and a second major surface (120), which may form part of a matte layer, the second major surface being opposite to the first major surface and including second microstructures (160). The second major surface has an optical haze that is not greater than about 3% and an optical clarity that is not greater than about 85%. The light redirecting film has an average effective transmission that is not less than about 1.75. The light redirecting film (100) may comprise particles. The second microstructures may have a slope distribution.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: February 25, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Joseph T. Aronson, Slah Jendoubi, Mitchell A. F. Johnson, Scott R. Kaytor, Tri D. Pham, Robert A. Yapel, Joseph A. Zigal, Steven J. McMan, Steven D. Solomonson, Steven H. Kong, Fei Lu, Gary T. Boyd
  • Publication number: 20140043831
    Abstract: A lens has a refractive index of n, and includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip. A distance from a center of the base to a point of the curved center-edge surface is shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. The lens satisfies A1+A2<90+sin?1(1/n), where A1 an obtuse angle between a main axis and a tangent line of the curved centermost surface, and A2 is an acute angle between a straight line linking the center of the base to the point of the curved centermost surface and the main axis.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: JU-YOUNG YOON, GI-CHERL KIM, JONG-SEO LEE, CHUN-HO SONG, SE-KI PARK, SANG-GIL LEE, SEOCK-HWAN KANG
  • Patent number: 8647263
    Abstract: The invention provides lenses at low cost, which form an illumination optical system for endoscopes that has high efficiency and achieves improved light distribution. The illumination optical system for endoscopes is used in opposition to a light beam exit end 1 of a transmission means F for light emitted from a light source, and comprises, as viewed from the light beam exit end 1, a lens group 10 having positive power and an optical member 20 subsequent thereto which has a spherical surface 20a that functions as a lens, has a radius of curvature R, and satisfies the following condition: 1.48?S/?R2?4??(1) where R is the radius of curvature of the spherical surface, in mm, and S is a surface area of the spherical surface, in mm2.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: February 11, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventors: Keiji Murata, Hiroshi Tsuyuki, Daisuke Akiyama
  • Patent number: 8641238
    Abstract: A light source module includes a circuit board, a light-emitting diode, a lens, and a lamp screen. An upper surface of the lens has a first recessed portion including a flat surface and a curved side surface. The flat surface is at the center of the upper surface. The curved side surface surrounds the flat surface and stretches to the flat surface from a side surface of the lens to form the first recessed portion. A lower surface of the lens has a second recessed portion defining a recessed space and includes a curved surface and a sidewall portion. The curved surface is a convex surface and opposite to the flat surface. The sidewall portion surrounds the recessed space. An inner surface of the sidewall portion is concaved. The light-emitting diode is disposed in the recessed space. The lamp screen is used to diffuse the light passing through the lens.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: February 4, 2014
    Assignee: Beautiful Light Technology Corp.
    Inventors: Shih-Ting Chiu, Chien-Wen Chiu
  • 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: 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: 8579485
    Abstract: A vehicular lamp includes a light source disposed on an optical axis extending in a front-back direction of the vehicular lamp; and a reflector that reflects forward light from the light source. The reflector is formed by a translucent member including a plurality of optical elements disposed continuously in a radial direction of the optical axis. Each of the optical elements includes: a surface of incidence through which light from a light emission reference point in the light source is incident into the optical element and which refracts the light into a direction away from the optical axis, a reflective surface which internally reflects forward the light which is incident into the optical element through the surface of incidence, and a surface of emission through which the light internally reflected by the reflective surface is emitted forward from the optical element.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: November 12, 2013
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Ryosuke Hara
  • Publication number: 20130286662
    Abstract: Optics and optical devices and systems are disclosed that employ a plurality of refractive and/or reflective optical elements, such as lenses and mirrors, with different shapes to achieve a desired illumination pattern. In various aspects, a plurality of lenses in which at least two of the lenses have different boundary shapes are arranged, e.g., according to a predefined pattern, to receive light from one or more light sources and to redirect the received light to form collectively a desired far-field illumination pattern. For example, the lenses can be configured such that the far-field illumination pattern has a boundary shape that is different from the boundary shape of a far-field illumination pattern that can be provided individually by the lenses.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 31, 2013
    Inventors: Michael Zollers, James Preston, Brien J. Housand
  • Patent number: 8556482
    Abstract: The invention relates to a method for producing a headlamp lens (2) for a vehicle headlamp, in particular for a motor-vehicle headlamp (1), wherein the headlamp lens (2) comprises a transparent body (3) with an optically effective surface (5), which is in particular substantially planar and can be turned towards a light source (10), and an optically effective surface (4), which is in particular convex and can be turned away from the light source (10), wherein the gradient of a light-dark boundary (25) projected by the headlamp lens (2) or a further headlamp lens is measured, and wherein a light diffusing structure (35) is produced in the transparent body (3) in accordance with the measured gradient.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: October 15, 2013
    Assignee: Docter Optics SE
    Inventor: Jens Fischer
  • Patent number: 8552627
    Abstract: A retaining frame (2) having at least one optical element (3) secured thereto by injection molding, with the at least one optical element (3) being embodied for beam shaping at least by means of total internal reflection and/or diffraction.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: October 8, 2013
    Assignee: OSRAM Gesellschaft mit beschrankter Haftung
    Inventors: Peter Frey, Thomas Reiners, Ralf Vollmer
  • Patent number: 8500310
    Abstract: Disclosed herein is an indication plate including: a plate member including a light-transmitting material; and an indication part provided at a surface on one side with respect to the thickness direction of the plate member, wherein the indication part includes a light-shielding part including a light-shielding material and covering the surface on one side, and a convex portion including the light-transmitting material, the convex portion projecting from the surface on one side and being exposed from the light-shielding part; the convex portion has a circumferential surface projecting from the light-shielding part, and an end face connecting tip portions of the circumferential surface to each other, and a metallic foil having a light-transmitting property is attached to the end face.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: August 6, 2013
    Assignee: Sony Corporation
    Inventor: Takeshi Sakamoto
  • Patent number: 8469565
    Abstract: A vehicle light includes a multi-focal lens that has a mid-level lens portion, an upper-level lens portion, and lower-level lens portion, a separator plate with a front edge positioned at or near the focal point of the mid-level lens portion, and a plurality of light emitting elements mounted on the top and bottom of the separator plate, respectively. A first elliptical reflecting surface whose first focal point is set at or near the first light emitting element and whose second focal point is set at or near the focal point of the mid-level lens portion is provided on the top of the separator plate; a second elliptical reflecting surface is provided on the bottom of the separator plate, with a first focal point set at or near the second light emitting element and the second focal point set at or near the focal point of the upper-level lens portion.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: June 25, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Yasushi Yatsuda
  • Patent number: 8465180
    Abstract: The present invention relates to an optical element (2) for collimating light from a light source (3), said optical element (2) having an in-coupling side (5) arranged to receive said light, an out-coupling side (6) arranged to allow for emission of collimated light, and an element body extending from said in-coupling side (5) to said out-coupling side (6), the element body having a cross-section perpendicular to an optical axis (z) defined by an x-5 axis and a y-axis being perpendicular to each other, wherein said optical element (2) has an x-curvature along said x-axis and a y-curvature along said y-axis, said y-curvature being greater than said x-curvature, thereby enabling for a light distribution of said collimated light emitted from said out-coupling side (6) to have a cross-section of an asymmetric shape (CE) perpendicular to said optical axis (z). The present invention also relates to a lighting system (1) comprising such an optical element (2).
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: June 18, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Denis Joseph Carel Van Oers, Rob Franciscus Maria Van Elmpt
  • Patent number: 8459844
    Abstract: A light assembly for a hand-held medical diagnostic instrument. The light assembly includes a substrate having a top surface and a bottom surface, a light source mounted to the top surface, and the bottom surface having first and second electrical terminals. The light assembly further includes a circuit board disposed inclined to the substrate, the circuit board having first and second electrical terminals, a first connector mounting and electrically connecting the first electrical terminal of the substrate to the first electrical terminal of the circuit board, a second connector mounting and electrically connecting the second electrical terminal of the substrate to the second electrical terminal of the circuit board, a heat sink, and a thermal conductor thermally connecting at least one of the first and second electrical terminals of the substrate to the heat sink.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: June 11, 2013
    Assignee: Welch Allyn, Inc.
    Inventors: Raymond A. Lia, Ervin Goldfain, Chris R. Roberts, Steven R. Slawson, Robert J. Wood
  • Patent number: 8449149
    Abstract: An illumination apparatus including a light-emitting unit and a lens module is described. The light-emitting unit is used for generating a light and has a light exit axis. The lens module has a light exit surface with a plurality of curved surfaces. The lens module receives the light and outputs the light from the curved surfaces. Further, the curved surfaces have at least two curvatures, each for adjusting a illumination range of the light output from the corresponding curved surface.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: May 28, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Hsuen-Chih Chang, Hung-Lieh Hu, Sheng-Pan Huang, Chiu-Ling Chen, Chen-Kun Chen
  • Patent number: 8449151
    Abstract: The present invention provides a light control film that can prevent generation of a moiré pattern when it is superimposed on another member having a regular structure while securing sufficient front luminance, and a backlight device using the same. The light control film of the present invention has a light control layer provided with an uneven pattern on a surface, and in this uneven pattern, a plurality of convexes having circular bases of approximately the same diameters are arranged so that the bases thereof should not overlap with one another and each should touch one or two or more other bases, and ratio of convexes arranged so that each of circular bases thereof should touch both bases of two convexes of which bases touch each other is controlled to be 50 to 92% among the total convexes arranged. The backlight device of the present invention is a backlight device incorporated with the aforementioned light control film.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: May 28, 2013
    Assignee: Kimoto Co., Ltd.
    Inventor: Hideki Etori
  • Patent number: 8434883
    Abstract: A LLB bulb includes a base, a LED light source configured to emit electromagnetic radiation, and a lens/cover having a light extracting rough surface pattern (LERSP) configured to reduce glare and reflection in the LLB bulb without light loss. A method for fabricating the LLB bulb includes the steps of providing the lens/cover, and forming the light extracting rough surface pattern (LERSP) on the lens/cover. The lens/cover can be fabricated with the light extracting rough surface pattern (LERSP) using a process such as bead blasting, sand blasting, etching (chemical or plasma), or molding.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: May 7, 2013
    Assignee: SemiOptoelectronics Co., Ltd.
    Inventors: Trung Tri Doan, Jui Kang Yen
  • Patent number: 8405795
    Abstract: A light emitting device assembly includes: a light emitting device; and a light output member provided on the light emitting element and having an upper surface on which a curved part that outputs light from the light emitting device is provided, wherein a value of a x coordinate of a curved part center axis is a positive value, a locus of an edge of a curved part forms a circle or oval around the curved part center axis, light on a Z-axis output from an origin is output from the curved part at an angle ?0 (?0>0) formed with the Z-axis within a XZ-plane, and function F(?,??) expressed by F(?,??)=(??+??????(1) monotonously increases, takes the maximum value at ?=?0 (<0), and then, monotonously decreases as a value of ? increases from the minimum value.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: March 26, 2013
    Assignee: Sony Corporation
    Inventor: Shingo Ohkawa
  • Patent number: 8382338
    Abstract: A light-emitting diode (LED) lens for covering a LED light source includes a lens body made of a transparent material. The lens body has a light-exit surface and a light-entrance portion. The light-exit surface is configured along the longitudinal direction into a pair of convex surface areas and a concave surface area interconnecting the convex surface areas. The concave surface area has minimum dimensions smaller than maximum dimensions of each of the convex surface areas along first and second transverse directions. The light-entrance portion is adapted for receiving the LED light source, and has a light-incident surface. The light-incident surface has a pair of end portions opposite to each other along the longitudinal direction and extending inclinedly away from the light-exit surface and away from each other.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: February 26, 2013
    Assignees: Silitek Electronic (Guangzhou) Co., Ltd., Lite-On Technology Corp.
    Inventor: Chung-En Lee
  • 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: 8308337
    Abstract: A light guide plate, a backlight module and a liquid crystal display are provided. The light guide plate has a first surface at least having one first structure and one second structure formed thereon. The first structure and the second structure are adjacent arranged and are mirror reflection with each other. Each of the first structure and the second structure has a first protrusion having a cross section of eccentric triangle.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 13, 2012
    Assignee: AU Optronics Corp.
    Inventor: Yao-Chung Yeh
  • Patent number: 8269916
    Abstract: A light emitting device assembly includes: a light emitting device; and a light output member provided on the light emitting element and having an upper surface on which a curved part that outputs light from the light emitting device is provided, wherein a value of a x coordinate of a curved part center axis is a positive value, a locus of an edge of a curved part forms a circle or oval around the curved part center axis, light on a Z-axis output from an origin is output from the curved part at an angle ?0 (?0>0) formed with the Z-axis within a XZ-plane, and function F(?,??) expressed by F(?,??)=(??+????)/????(1) monotonously increases, takes the maximum value at ?=?0 (<0), and then, monotonously decreases as a value of ? increases from the minimum value.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: September 18, 2012
    Assignee: Sony Corporation
    Inventor: Shingo Ohkawa
  • Patent number: 8246200
    Abstract: An illumination device includes a light source module consisting of a substrate and a plurality of light emitting elements on the substrate in an array and an optical module array consisting of a plurality of optical modules covering the light emitting elements. Each optical module includes a first optical component and a second optical component. A first illumination distribution pattern is generated by light from the light emitting elements and modulated by the first optical components. A second illumination distribution pattern is generated by light from the light emitting elements and modulated by the second optical components. An illumination distribution pattern of the illumination device is superposition of the first illumination distribution pattern and the second illumination distribution pattern.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: August 21, 2012
    Assignee: Foxsemicon Integrated Technology, Inc.
    Inventors: Chih-Ming Lai, Tien-Pao Chen, Chiao-Ling Peng
  • Patent number: 8240886
    Abstract: An illumination device for illuminating a road includes a lamp holder and a light source. The lamp holder has an inner surface and a cavity defined by the inner surface. The light source is arranged in the cavity, and light emitted from the light source is redirected by the lamp holder to establish an illuminating area on the road. The illuminating area is consisted of a first angular range and a second angular range which are located at two opposite sides of the lamp holder along a lengthwise direction of the road. The first angular range is directed at an angle ?1 from a downward vertical line through the lamp holder, and the second angular range is directed at an angle ?2 from the downward vertical line, wherein, ?2>?1, ?1?45°.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Foxsemicon Integrated Technology, Inc.
    Inventor: Chih-Ming Lai
  • Patent number: 8240888
    Abstract: An LED unit includes an LED and a lens receiving the LED. The LED includes a chassis, a base on the chassis and an envelope fixed on the base. The lens has two crossed grooves, a hole and a chamber sequentially defined in a bottom face the lens, along an upward direction thereof. The chassis of the LED can be selected to fit in one of the two grooves. The base of the LED is engaged in the hole of the lens, and the envelope of the LED is received in the chamber of the lens.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: August 14, 2012
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Hai-Wei Zhang, Yi-San Liu, Chin-Chung Chen
  • Patent number: 8210714
    Abstract: An Illuminant module includes an optical film and a light source array. The optical array includes a plurality of concave surfaces and a plurality of convex surfaces alternatively arranged along at least one direction, wherein each concave surface has a concave surface width along the at least one direction, and each convex surface has a convex surface width along the at least one direction. The light source array includes a plurality of light emitting diodes, wherein the concave surface width is not equal to the convex surface width, and the light from the light source array penetrates the optical film.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: July 3, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Chiang Chao, Po-Ling Shiao, Yu-Tsan Tseng, Mei-Chun Lai
  • Publication number: 20120140483
    Abstract: A light emitting diode (LED) unit having a lens is disclosed. The lens comprises a base, the base comprising a bottom face configured to a light incident face for light entering the lens, and a top face; a first member and a second member, wherein the first and second members curve outward from the top face of the base, wherein the first member comprises a first light emergent face, the first light emergent face has a Fresnel lens surface curved outward from the top face, and light emitted from the first light emergent face illuminates areas far away from the lens, and wherein the second member comprises a second light emergent face, the second light emergent face has a rough surface finish, the second light emergent face is at first angle from the top face, and light emitted from the second light emergent face illuminates areas near the lens.
    Type: Application
    Filed: November 22, 2011
    Publication date: June 7, 2012
    Applicant: FOXSEMICON INTEGRATED TECHNOLOGY, INC.
    Inventor: HSIU-PING CHANG
  • Patent number: 8193703
    Abstract: An OLED display includes a first substrate including a thin film transistor and an OLED, and a second substrate on the first substrate and including a corner-cube pattern facing the first substrate.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: June 5, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Hee-Chul Jeon, Woo-Suk Jung, Soon-Ryong Park, Eun-Ah Kim, Chul-Woo Jeong, Hee-Seong Jeong, Noh-Min Kwak, Joo-Hwa Lee
  • Publication number: 20120106168
    Abstract: An illuminating lens includes: a light entrance surface through which light emitted from a light source enters the lens; and a light exit surface through which the light that has entered the lens exits the lens. The light exit surface has: a concave portion intersecting the optical axis; and a convex portion provided around the concave portion to extend continuously from the concave portion. The light exit surface is formed in a shape such that a curvature C of micro-segments of the light exit surface in a cross section including the optical axis has a maximum value at a position outward from the midpoint of the convex portion.
    Type: Application
    Filed: December 30, 2011
    Publication date: May 3, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Daizaburo MATSUKI, Syunsuke KIMURA, Tomoko IIYAMA
  • Publication number: 20120106165
    Abstract: A lens comprises a base, the base comprising a bottom face facing a light emitting side of a light source, and a top face; a first member comprising a convex part curved outward from a first portion of the top face, and a first light emergent face formed on a top of the convex part; wherein light emitted from the first light emergent face illuminates areas far away from the lens; and a second member connecting to the first member on a second portion of the top face, the second member comprising a second light emergent face; wherein the second light emergent face is at an angle from the top face, the second light emergent face is located at a lower elevation than the first light emergent face in relation to the top face, and light emitted from the second light emergent face illuminates areas near the lens.
    Type: Application
    Filed: October 20, 2011
    Publication date: May 3, 2012
    Applicant: FOXSEMICON INTEGRATED TECHNOLOGY, INC.
    Inventor: HSIU-PING CHANG