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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/040808
Kind Code:
A direct-type vehicle headlamp module comprises a heat sink (2), an LED chip (4), and a lens (3). The heat sink (2) and the lens (3) are fixed to form an accommodation cavity accommodating the LED chip (4), and the LED chip (4) is fixed on the heat sink (2). Light emitted by the LED chip (4) directly passes through the lens (3) and is emitted from the lens (3). The outer surface of the lens (3) is divided into three regions. The shapes of the outer curved surfaces corresponding to the regions are different from each other. The curved surface corresponding to the first region (31) is configured to form a cut-off line. The curved surface corresponding to the second region (32) is configured to increase the brightness of a central region of a beam. The curved surface corresponding to the third region (33) is configured to broaden the beam. A vehicle headlamp comprising the module is further comprised. The module and the headlamp control the transmission direction and the emission direction of the light via the three regions having differently-shaped curved surfaces to form the shape of the cut-off line. Since the light only passes through the lens, light efficiency is higher, and the cost is lower.

XIE, Le (No.767 Yecheng Road, Jiading District, Shanghai 1, 201821, CN)
Application Number:
Publication Date:
March 08, 2018
Filing Date:
July 26, 2017
Export Citation:
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SHANGHAI KOITO AUTOMOTIVE LAMP CO., LTD. (No.767 Yecheng Road, Jiading District, Shanghai 1, 201821, CN)
International Classes:
Attorney, Agent or Firm:
J.Z.M.C. PATENT AND TRADEMARK LAW OFFICE (YU Mingwei, Room 5022No.335, Guo Ding Road, Yangpu District, Shanghai 3, 200433, CN)
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