Patents by Inventor Shao-Han Chang

Shao-Han Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120161628
    Abstract: An LED illuminating device includes a hollow base including a first end and a second end, an LED substrate, a connector, and a driving circuit module accommodated in the base. A plurality of vents are defined in a circumferential wall of the hollow base; a space is formed between a circumferential wall of the driving circuit module and the inner surface of the circumferential wall of the hollow base. The space can communicate with the plurality of vents and serve as a hot air channel, to promote heat exchange between hot air in the base and cool air outside the base.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 28, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: SHAO-HAN CHANG, FU-QIU SHI, QING-SHAN CAO
  • Publication number: 20120161627
    Abstract: An LED illuminating device includes a housing including a first open end and a second open end, and a base including an upper base fixed on the first open end and a bottom base held inside the housing. An LED substrate is mounted on the upper base and includes a number of LEDs. A number of first vents are defined in the upper base, and a number of second vents are defined on the second open end of the housing. A space is formed between the lateral wall of the bottom base and the inside wall of the housing, and communicates with the first vents and the second vents.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 28, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: SHAO-HAN CHANG, QING-SHAN CAO, XIAO-MAN PU
  • Publication number: 20120155072
    Abstract: An LED tube lamp includes a heat sink, an LED substrate, a cover fixed to the heat sink. The cover includes a first surface, a second surface and at least one incident end facing the LEDs, each of the at least one incident end includes an incident face and a reflective face. Light beams from the LEDs enter the cover from the incident face and are reflected by the reflective face, the light beams reflected by the reflective faces are internally reflected by the first surface and the second surface until escaping outside through the cover.
    Type: Application
    Filed: May 27, 2011
    Publication date: June 21, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120127728
    Abstract: A light distribution structure for a light emitting diode includes a lens, a light distribution member, and a reflection member. The lens is fixed to the light distribution member. The reflection member is fixed to the lens and faces the light distribution member. The reflection member includes a protrusion opposing the light emitting diode. The light distribution member defines a through hole for receiving the light emitting diode. The light distribution member is formed with a plurality of reflection portions on a side facing the lens. The reflection portions are inclined relative to the bottom of the light distribution member. The protrusion is capable of reflecting the light beams with incident angle within a preset range entering the protrusion from the light emitting diode to the reflection portions. The reflection portions are capable of reflecting the light beams reaching the reflection portions to the lens.
    Type: Application
    Filed: April 10, 2011
    Publication date: May 24, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Patent number: 8177377
    Abstract: An optical plate includes a first surface and a second surface opposite to the first surface. The first surface defines a plurality of elongated, arc-shaped depressions. The second surface defines a plurality of triangular pyramidal depressions and a plurality of four-sided pyramidal depressions. Each four-sided pyramidal depression is surrounded by four triangular pyramidal depressions.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: May 15, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Shao-Han Chang
  • Publication number: 20120105308
    Abstract: A spherical display device includes a frame, a plurality of first display units and a plurality of second display units fixed on the frame. The first display panel units and the second display panel units being joined together and electrically connected to each other to cooperatively form a spherical structure with a spherical display surface. When the first display units and the second display units work together to corporately display an object, viewers can view the object in view angle of 360 degree.
    Type: Application
    Filed: June 19, 2011
    Publication date: May 3, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120106134
    Abstract: An LED ceiling lamp includes a primary illumination unit and at least one subsidiary illumination unit. The primary illumination includes a base and a connecting member to fix the base to a ceiling. Each of the at least one subsidiary illumination unit is fixed to the base and faces the ceiling. Each of the at least one subsidiary illumination unit comprises a circuit board with an LED unit, a lens and a reflector. The lens covers the circuit board. The circuit board and the lens are received in the reflector. The lens is configured for dividing the light beams from the LED units into several light groups. An aphotic area is formed between each two adjacent light groups. The reflector is configured for reflecting the several light groups on the ceiling.
    Type: Application
    Filed: March 31, 2011
    Publication date: May 3, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120106144
    Abstract: A LED tube lamp includes a heat sink, a LED substrate, a pair of connectors, and a cover fixed to the heat sink. The cover includes a first cover and a second cover, at least one optical lens is arranged on the first cover, the at least one optical lens comprises a concave lens and reflective lenses arranged on both sides of the concave lens. The concave lens is configured to refract light beams from the LEDs in a forward direction or in an approximate forward direction, the reflective lenses are configured to reflect light beams from the LEDs in a lateral direction. After the light beams are refracted by the optical lens, the light divergence angle of the LED tube lamp is increased.
    Type: Application
    Filed: April 21, 2011
    Publication date: May 3, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Patent number: 8159633
    Abstract: An exemplary optical plate includes a transparent layer and a light diffusion layer. The transparent layer and the light diffusion layer are integrally formed. The transparent layer includes a light input interface, a light output surface opposite to the light input interface, and a plurality of curved, elongated, V-shaped micro-protrusions are formed on the light output surface. The light diffusion layer is located adjacent to the light input interface of the transparent layer. A plurality of V-shaped micro-protrusions are formed on an outer surface of the light diffusion layer. A liquid crystal display device using the optical plate is also provided.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: April 17, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Shao-Han Chang
  • Publication number: 20120087119
    Abstract: An LED lamp includes a base, a lampshade, a substrate and a light distribution board. A number of light emitting diodes are mounted on the substrate. The lampshade and the substrate are both fixed to the base. The light distribution board is positioned between the lampshade and the substrate. Opposite sides of the light distribution board respectively face the lampshade and the substrate. The light distribution board includes a number of protrusions. The base includes an oblique reflecting portion at opposite ends thereof. The reflecting portion is coated with a reflecting layer. The protrusions are configured for totally reflecting incident light with incident angle within a preset range from the light emitting diodes to the reflecting layer. The reflecting layer is configured for reflecting the reflected light to the lampshade.
    Type: Application
    Filed: April 14, 2011
    Publication date: April 12, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120075846
    Abstract: An LED illuminating device comprises a housing with a base plate, a prism sheet and a circuit board. The prism sheet is mounted in the housing and comprises a number of V-shaped micro-grooves formed thereon along four directions intersecting with each other. The circuit board is fixed on the base plate, wherein a plurality of LED units is arranged on the circuit board. Each two adjacent LED units are spaced a preset distance and emit light of different colors. Eight virtual mixed light sources are formed by reflection of the prism sheet to the circuit board when the light emitted by one of the LED units mixes with light emitted from adjacent LED units on the circuit board. Each of the virtual mixed light sources has a color different from the colors of the light emitted from the LED units.
    Type: Application
    Filed: April 20, 2011
    Publication date: March 29, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: SHAO-HAN CHANG, XIAO-MAN PU, SU-TZONG LIU
  • Publication number: 20120075845
    Abstract: An LED illuminating device comprises a housing with a base plate, a prism sheet and a circuit board. The prism sheet is mounted in the housing and comprises a number of V-shaped micro-grooves formed thereon along two directions intersecting with each other. The circuit board fixed on the base plate, wherein a plurality of LED units are arranged on the circuit board, each adjacent two of the plurality of LED units are spaced for a preset distance and emit light of different color; four virtual mixed light sources are formed by reflection of the prism sheet to the circuit board when the light emitted by a particular LED unit mixes with light emitted by adjacent LED units on circuit board, each of the virtual mixed light sources forms a desired color different from the light emitted from each LED units.
    Type: Application
    Filed: December 23, 2010
    Publication date: March 29, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120075847
    Abstract: An LED illuminating device comprises a housing with a base plate, a prism sheet and a circuit board. The prism sheet is mounted in the housing and comprises a number of V-shaped micro-grooves formed thereon along three directions intersecting with each other. The circuit board is fixed on the base plate, wherein a plurality of LED units are arranged on the circuit board, each two adjacent LED units are spaced a preset distance apart from each other and emit light of different colors. Six virtual mixed light sources are formed by reflection of the prism sheet to the circuit board when the light emitted by an LED unit mixes with light emitted from adjacent LED units on the circuit board. Each of the virtual mixed light sources has a color different from the colors of the light emitted from the LED units.
    Type: Application
    Filed: April 20, 2011
    Publication date: March 29, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: SHAO-HAN CHANG, QING-SHAN CAO, SU-TZONG LIU
  • Publication number: 20120075850
    Abstract: An LED lamp includes a base, an encapsulation, a substrate and a light distribution board. A number of light emitting diodes are mounted on the substrate. The encapsulation, the substrate and the light distribution board are all fixed to the base. Opposite sides of the light distribution board respectively face the encapsulation and the substrate. The light distribution board includes a number of protrusions. The protrusions totally reflect the incident light beams from the light emitting diodes perpendicular to or substantially perpendicular to the light distribution board.
    Type: Application
    Filed: March 16, 2011
    Publication date: March 29, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120075851
    Abstract: An LED illuminating device comprises a housing with a base plate, a prism sheet and a circuit board. The prism sheet is mounted in the housing and comprises a number of V-shaped micro-grooves formed thereon along two directions intersecting with each other. A plurality of LED units are arranged in groups on the circuit board. Each LED illuminating group comprises three LED units. Each of the LED units emits light of a color different from those of the other two LED units. Four virtual mixed light sources are formed by the reflection of the prism sheet to the circuit board when the light emitted by a particular LED unit mixes with light emitted by adjacent LED units on the circuit board. Each of the virtual mixed light sources forms a desired color different from the colors of the light emitted from the LED units.
    Type: Application
    Filed: April 21, 2011
    Publication date: March 29, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: SHAO-HAN CHANG, XIAO-MAN PU, FU-QIU SHI
  • Publication number: 20120075852
    Abstract: An LED illuminating device comprises a housing with a base plate, a prism sheet and a circuit board. The prism sheet is mounted in the housing and comprises a number of V-shaped micro-grooves formed along two directions intersecting with each other. A plurality of LED units are arranged on the circuit board in groups, each group comprises four LED units, the four LED units totally emitting light of three colors. Two adjacent groups share a LED unit. Four virtual mixed light sources are formed by reflection of the prism sheet to the circuit board. Each of the virtual mixed light sources forms a desired color different from the colors of the light emitted from the LED units.
    Type: Application
    Filed: April 21, 2011
    Publication date: March 29, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
    Inventors: SHAO-HAN CHANG, FU-QIU SHI, SU-TZONG LIU
  • Publication number: 20120075869
    Abstract: An LED illuminating device contains a housing with a base plate, a prism sheet and a circuit board. The prism sheet is mounted in the housing and includes a number of V-shaped micro-grooves along at least two directions intersecting with each other. The circuit board arranged multiple of LED illuminating arrays is fixed on the base plate. Each LED illuminating array is made of two LED units spaced apart a third preset distance. At least four virtual light sources are formed by the reflection of prism sheet to the circuit board after the light emitted by a particular LED unit on the circuit board. The rows and the columns of the matrix are respectively spaced apart a first preset distance and a second preset distance.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 29, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120051039
    Abstract: An LED tube lamp includes a heat sink, an LED substrate, a cover fixed to the heat sink. A light gathering wall arranged between the cover and the LED substrate. The cover further includes a condenser lens, the light gathering wall is configured for reflecting and gathering the light beams emitting from the LEDs, the condenser lens is configured for gathering the light beams reflected from the light gathering wall. The light beams emitting form the LEDs can be controlled substantially in a desired illuminating range after being gathered twice.
    Type: Application
    Filed: April 28, 2011
    Publication date: March 1, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120020066
    Abstract: An LED lighting device includes a reflector, a plurality of LED light sources and a light guiding member. The light guiding member is arranged inside the reflector, and includes a plurality of plates each having a connecting end, wherein the connecting ends of the plurality of plates are connected together. Each plate includes two surfaces, one or two of which includes a plurality of accentuated portions, and one of the plates defines a light incident surface opposing the LED light sources. After entering the light guiding member from the light incident surface, the light from the LED light sources is reflected between opposite surfaces of each plate of the light guiding member. Light reaching the accentuated portions is diffused and exits the light guiding member, to be finally transmitted outside through the reflector.
    Type: Application
    Filed: March 1, 2011
    Publication date: January 26, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG
  • Publication number: 20120020108
    Abstract: An LED lighting device includes at least one circuit board, an encapsulation, a number of LED light sources, and a light guiding member. The LED light sources are distributed on the circuit board. The encapsulation is arranged around the light guiding member. The light guiding member includes two opposite surfaces, at least one of which defines a number of accentuated portions. At least one end of the light guiding member includes a light incident surface opposing the LED light sources. After entering the light guiding member from the light incident surface, the light beams from the LED light sources are reflected between the opposite surfaces of the light guiding member. The light beams reaching the accentuated portions are diffused and exit the light guiding member, and are finally transmitted to outside through the encapsulation.
    Type: Application
    Filed: March 16, 2011
    Publication date: January 26, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: SHAO-HAN CHANG