| 摘要 |
Disclosed is a bar-shaped LED lighting device consisting of a plurality of light emitting units. Each light emitting unit includes an LED (110) to emit light, a semi-oval reflector (120) to reflect and collimate the light, emitted laterally from the LED (110), so as to direct parallel light forward, and a lens (220, 230 or 240) configured to be inserted into the reflector (120) and having a center light source hole (226) for receiving the LED (110) and a cylindrical hole (227) defined in a front portion thereof. The light source hole (226) has a convex portion (224) defined at a position thereof opposite the LED (110) to refract and collimate the light, emitted forward from the LED (110), so as to direct parallel light to the outside through the cylindrical hole (227). A front surface of the lens (220, 230 or 240) takes the form of a flat-plane-shaped front surface (225), convexly-curved front surface (235), or concavely-curved front surface (245).
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