GB2494114B - An led projector - Google Patents

An led projector

Info

Publication number
GB2494114B
GB2494114B GB1114709.7A GB201114709A GB2494114B GB 2494114 B GB2494114 B GB 2494114B GB 201114709 A GB201114709 A GB 201114709A GB 2494114 B GB2494114 B GB 2494114B
Authority
GB
United Kingdom
Prior art keywords
grating
led projector
leds
power supply
switching power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB1114709.7A
Other versions
GB201114709D0 (en
GB2494114A (en
Inventor
Yung-Fa Cheng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONGGUAN JINDIAN BRIGHT CORP
Original Assignee
DONGGUAN JINDIAN BRIGHT CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DONGGUAN JINDIAN BRIGHT CORP filed Critical DONGGUAN JINDIAN BRIGHT CORP
Priority to GB1114709.7A priority Critical patent/GB2494114B/en
Publication of GB201114709D0 publication Critical patent/GB201114709D0/en
Publication of GB2494114A publication Critical patent/GB2494114A/en
Application granted granted Critical
Publication of GB2494114B publication Critical patent/GB2494114B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Led Device Packages (AREA)

Abstract

An LED projector has a main body containing a switching power supply 1. Current entering the switching power supply 1 is rectified and then input to a process control mainboard 3 which is connected to an operating control digital board and LEDs 15 on LED substrate 9. A light variation structure 12 which may be a grating 12 or a 2D grating (17, fig 10) is set in front of LEDs 15, along with a Freznel lens (13, fig 10). The relative position between the grating 12, the 2D grating (17, fig 10) and the Freznel lens (13, Fig 10) may be changed.
GB1114709.7A 2011-08-25 2011-08-25 An led projector Expired - Fee Related GB2494114B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1114709.7A GB2494114B (en) 2011-08-25 2011-08-25 An led projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1114709.7A GB2494114B (en) 2011-08-25 2011-08-25 An led projector

Publications (3)

Publication Number Publication Date
GB201114709D0 GB201114709D0 (en) 2011-10-12
GB2494114A GB2494114A (en) 2013-03-06
GB2494114B true GB2494114B (en) 2013-08-07

Family

ID=44838716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1114709.7A Expired - Fee Related GB2494114B (en) 2011-08-25 2011-08-25 An led projector

Country Status (1)

Country Link
GB (1) GB2494114B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402719A (en) * 2016-08-30 2017-02-15 宁波凯盛电器有限公司 Candle lamp
CN110778934B (en) * 2019-11-08 2022-01-04 平行现实（杭州）科技有限公司 Ultrathin parallel light source based on one-dimensional diffraction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080239726A1 (en) * 2007-03-26 2008-10-02 Yung-Fa Cheng LED projection lamp for stage use
CN201606748U (en) * 2010-01-11 2010-10-13 东莞晶典灯饰五金有限公司 Grating projection lamp adopting light emitting diode (LED)
CN201636664U (en) * 2009-08-03 2010-11-17 东莞晶典灯饰五金有限公司 Light-emitting diode figure projection lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080239726A1 (en) * 2007-03-26 2008-10-02 Yung-Fa Cheng LED projection lamp for stage use
CN201636664U (en) * 2009-08-03 2010-11-17 东莞晶典灯饰五金有限公司 Light-emitting diode figure projection lamp
CN201606748U (en) * 2010-01-11 2010-10-13 东莞晶典灯饰五金有限公司 Grating projection lamp adopting light emitting diode (LED)

Also Published As

Publication number Publication date
GB201114709D0 (en) 2011-10-12
GB2494114A (en) 2013-03-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160825