Patent ID: 7614774

Claim:
A light emitting diode comprising two lead-frames, one or more light-emitting chips disposed on either of the lead-frames and electrically connected to the lead-frame with a conducting wire; a casing covering upon both the lead-frames and comprising a bottom wall and a first side unit and a second side unit opposite to each other with each of the side units including two sides, the first side unit and the second side unit extending from the bottom wall in a direction that is substantially perpendicular to the bottom wall, a compartment being surrounded by the first side unit and the second side unit; the second side unit being configured to have a height that is shorter than the height of the first side unit and is not zero along the direction that is substantially perpendicular to the bottom wall, so that the light directly emitted from the one or more light-emitting chips is substantially not incident onto the second side unit; and a packaging colloid received in the compartment.