Patent ID: 9518708
Filing Date: 2016-12-13
CPC Classification: B60Q,B64D,F21V,F21Y,G02B

Claim Text:
1. A lighting apparatus comprising: a plurality of LED structures having a plurality of LEDs arranged in a row; a wiring board having an elongated shape, on which the LEDs are mounted; and an optical lens that covers the LED structures, and controls distribution of light emitted from each of the LEDs, wherein each of the plurality of LED structures includes a plurality of LED types that each emit light of a different color from each other and are mounted on the wiring board in a row, and the light emitted from each LED has an optical axis orthogonal to the wiring board, the optical lens is a converging lens which has an elongated shape that covers all of the LEDs included in at least one of the LED structures, and includes a light incident surface on which the light emitted from the LED is incident, a medium that guides the light incident from the light incident surface, a light emitting surface that emits the light guided through the medium, and a diffuser that contains diffusing particles for causing the light incident from the LED to diffuse, and the concentration of the diffusing particles in the diffuser is high in the vicinity of the optical axis of the light emitted from the LED and gradually decreases as a distance from the optical axis increases, wherein the medium contains the diffusing particles to provide the diffuser.