Intelligent Omnidirectional LED Bulb
20130315 - 20140214
Dr Enboa Wu
1) Omnidirectional emission LED bulb It aims to replace 40W incandescent bulb (or equivalent to 9W CFL lamp replacement). A non-imaging optical technology will be used to develop an omni-reflective optics for re-constructing the narrowed beam emission pattern from LED into wide angle emission of the LED bulb in both forward and backward regions. This optics, combined with "to be developed" LED driving circuit design & commercial LED components will create a LED bulb to replace 40W incandescent light bulb (or 9W CFL equivalent) that fullfils light distribution requirement of US Energy Star; luminous flux output (485lm) requirement of Japan & exceeds lamp efficiency requirement (66lm/W) according to grade 1 label in CFL's "Mandatory Energy Efficient Labeling Scheme" in Hong Kong. Deliverable Specifications: a) Lumen Output: equal to or great than 485lm b) Lamp Efficiency: equal to or greater than 66lm/W c) Input Voltage: 100 / 120 / 220 VAC d) Light Intensity distribution: Fulfills US Energy Star Criteria on Integral Lamp 2) High lumen ouptut (> 800lm), high efficient (<10W) omnidirectional emission LED bulb It aims to replace 60W incandescent bulb (or equivalent to 13W CFL lamp replacement). Chip-on-board LED packaging technology, combined with omni-reflective optics and LED driving circuit, will be used to optimize the overall lamp efficiency. "Birdcage" technology (US7701055) will be also implemented in the bulb to enhance heat dissipation capability. The resultant bulb is therefore, to replace 60W incandescent lamp that fullfils requirements in US, Japan and Hong Kong. 20 prototypes will be provided to Housing Authority for energy efficiency test in Public Rental Estates. Deliverable Specifications: a) Lumen Output: equal to or greater than 810lm b) Lamp Efficiency: equal to or greater than 80 lm/W c) Input Voltage: 100 / 120 / 220 VAC d) Light Intensity Distribution: Fulfills US Energy Star Criteria on Integral Lamp
Ms Li Zhou Mr Yang Yue Ms Yuen Yan Lam Ms Sammie WAN Mr Bruce P.S. Lam Mr Wai Kin Luk Mr Tat Delfin Mancilla Lam Mr Suet Man Yau Mr Luis Ng Mr Kai Cheong Kwan Mr Ka King, Matthew Wong Mr Tik Shun, Dickson Leung Mr Chuen Kuen, Dave Yeung Ms Xiao Zhuang, Juanna Yao Ms Man Yee, Irene Pang Mr Chi Kit Lam Dr Pau Yee Lim Mr Kin Ken Kwun Dr Yingkai Jiang Ms Yuan, Fiona Wang Dr Ou, Lindy Dong Mr Pei Chin Ryan Chung Mr Hong Xu Dr Ka Cheung, Dick Kwok Dr Chun Zhang Mr Man On, William Fu Dr Yin Ching Tony Chau Mr Shui Lung, Charles Kuan Ms Yuen Han Kwan Mr Wai Keung Tony Lo Ms Wai Kee, Vicky Lai Mr Fu Wa Eric Tong Ms Linlu Liu Mr Kam Lai Wong Mr Siu Lung Lui
Hong Kong Housing Authority LEEAN Technology Company Limited LEEAN Technology Company Limited (Technology Licensing) [Sponsor] Shenzhen Eastfield Lighting Co., Ltd. [Sponsor] Shenzhen LED Collecion Enterprises Co. Ltd. Shenzhen LED Collecion Enterprises Co. Ltd. (Technology Licensing) [Sponsor]
The objective of this project is to promote energy efficient & environmentally clean "LED bulb" replacing inefficient incandescent & mercury embedded CFL lamps in domestic application. We are proposing an “Intelligent Omni-directional LED bulb” to achieve such goal in 11 months. This project will develop a technology platform for Omni-directional light bulb with light intensity distribution closely matched to that of incandescent light bulb for replacing CFL lamp (or equivalent 60W incandescent bulb) at a lower cost. Deliverables of the project include (1) an Omnidirectional LED bulb to replace 9W (or 40W incandescent bulb equivalent) and (2) an Omnidirectional LED bulb to replace 13W CFL lamp (or 60W incandescent bulb equivalent) The major challenges in this project are (1) uniform light emission over wide angle emission and (2) exceedingly high thermal density on limited space for heat dissipation. To solve these issues, we are going to develop (1) an opto-thermal reflector situated inside the bulb so as on one hand to precisely control the light emission pattern and on the other hand, to share some of thermal loading from the housing and dissipated the heat to the ambient through thermal radiation; (2) chip-on-board LED module, with full integration on optical reflector and electrical solution so as to maximize the overall lamp efficiency. We will work with Housing Authority to test out these technologies & products in Public Rental Estates & Elderly Centre respectively for energy saving & color temperature effect tests. With such technology platform developed, Hong Kong will benefit from this replacement bulb to further save electricity consumption and reduce environment pollution issue (potentially leak out of mercury in CFL). More than that, with consistent color temperature changeable features embedded, it provides “just right” light effects to suit different user scenarios so as to create more harmony society in HK.