Patent ID: 9476567
Filing Date: 2016-10-25
CPC Classification: E04B,E06B,F21S,F21V,F21Y,G02B

Claim Text:
1. An optical element for use in front of a light source comprising a light emitting surface, the optical element being configured to obtain a skylight appearance including a direct sunlight effect and a bluish light emission, said optical element comprising: a plate configured to be arranged parallel to the light emitting surface, the plate being opaque and comprising a plurality of holes, the plate further comprising a reflective surface configured to be arranged parallel to the light emitting surface, the reflective surface being light reflective in a predetermined spectral range for obtaining a blue light emission, and a plurality of collimating means for obtaining a collimated light beam in a specific direction by transmitting a part of the light received from the light source, wherein said part has a light emission angle substantially in the specific direction, each one of the collimating means comprising one of the plurality of holes of the plate, wherein said optical element is configured such that, when said plate and said reflective surface are arranged parallel to the light emitting surface, light emitted from a side of said plate outputting said collimated light beam appears to have a first color along said specific direction and appears more bluish than said first color along a direction that is different than said specific direction.