Polarizer, light emitting device, and light emitting apparatus

A light emitting device, comprising:

• an epitaxial stack having a light emitting surface for at least a part of light generated by said epitaxial stack emitting outwardly therefrom;
• and
• a polarizer disposed on said light emitting surface of said epitaxial stack and including
• a light-transmissible substrate having a mounting surface;
• a plurality of metal wires parallelly arranged on said mounting surface of said light-transmissible substrate, each of said metal wires extending in a direction parallel to said light emitting surface, and having an upper surface which is distal from said mounting surface of said light-transmissible substrate and a peripheral surface which extends from a periphery of said upper surface to said mounting surface of said light-transmissible substrate;
• and
• a protective layer having a first portion and a plurality of second portions, said first portion covering said upper surface of each of said metal wires and being formed into a continuous structure, each of said second portions covering said peripheral surface of a respective one of said metal wires, two adjacent ones of said second portions being spaced apart from each other by a gap,
• wherein each of said second portions has a thickness which is not greater than 40% of a distance between the respective one of said metal wires and an adjacent one of said metal wires that is adjacent to the respective one of said metal wires.

A polarizer, comprising:

• a light-transmissible substrate having a mounting surface;
• a plurality of metal wires parallelly arranged on said mounting surface of said light-transmissible substrate, each of said metal wires extending in a direction parallel to said mounting surface, and having an upper surface which is distal from said mounting surface of said light-transmissible substrate and a peripheral surface which extends from a periphery of said upper surface to said mounting surface of said light-transmissible substrate;
• and
• a protective layer having a first portion and a plurality of second portions, said first portion covering said upper surface of each of said metal wires and being formed into a continuous structure, each of said second portions covering said peripheral surface of a respective one of said metal wires, two adjacent ones of said second portions being spaced apart from each other,
• wherein each of said second portions has a thickness which is first gradually decreased and then gradually increased in a direction away from the light-transmissible substrate toward said first portion of said protective layer.