Lighting apparatus for emitting uniform light

A lighting apparatus comprising:

• a dome structure including a first opening opened in a circular or polygonal shape at least partially in one surface thereof, and a second opening opened in a circular or polygonal shape at least partially in another surface so as to be larger than the first opening;
• a plurality of reflective plates configured to connect at least a part of the first opening and at least a part of the second opening;
• a PCB provided in the dome structure and disposed at a predetermined first angle based on a region of the other surface that excludes the second opening in the other surface of the dome structure;
• and
• a light source disposed on the PCB,
• wherein light outputted at the first angle from the inside of the dome structure through the light source is reflected through at least one of the plurality of reflective plates, and the reflected light is emitted through the second opening to an object disposed at a lower end of the second opening and spaced apart from the dome structure;
• and
• wherein the first angle is 55 degrees to 65 degrees and wherein uniformity and a light amount of the light emitted to the object increase in proportion to an increase in size of the first angle and an increase in height of each of the plurality of reflective plates, and a size of the other surface of the dome structure is inversely proportional to uniformity of the light emitted to the object.