Optical projection apparatus and illumination apparatus using same

An illumination apparatus, comprising:

• an optical projection apparatus,
• wherein the optical projection apparatus includes:
• a light specification setting unit configured to set a specification of a light;
• a shape setting unit configured to set a shape which is made by the light irradiated in a space;
• a position setting unit configured to set a position of the shape, the position being within a predetermined projection range in the space;
• a size setting unit configured to set a size of the shape;
• an optical data generation unit configured to generate optical data based on the specification, the shape, the position, and the size;
• a light drawing unit configured to generate light drawing data by performing a drawing process with the optical data;
• an optical projection unit configured to project the shape at the position with the light drawing data;
• and
• a manipulation unit configured to allow a user to set one or more parameters indicating at least one of the specification, the shape, the position, and the size.