Optical waveguide plate for surface light emitting apparatus and surface light emitting apparatus using the optical waveguide plate

An optical waveguide plate for a surface light emitting apparatus comprising:

• an end face for introducing light emitted from a light source;
• a light emitting surface outputting light introduced from said end face;
• said end face including a light introducing portion comprising a plurality of notched prisms including a central notched prism disposed in a center of said light introducing portion;
• wherein each of said notched prisms has an apex angle and the apex angle of each of said notched prisms is different than the apex angle of said central notched prism.

An optical waveguide plate for a surface light emitting apparatus comprising:

• an end face introducing light emitted from a light source;
• a light emitting surface outputting light introduced from said end face;
• said end face including a light introducing portion comprising a plurality of notched prisms including a flat portion disposed in a center of said light introducing portion;
• and
• wherein each of said notched prisms has an apex angle and the apex angles of each of said notched prisms disposed on the one side of said flat portion are different than the apex angles of the other single notched prisms on the one side of said flat portion.

An optical waveguide plate for a surface light emitting apparatus comprising:

• an end face for introducing light emitted from a light source;
• a light emitting surface outputting light introduced from said end face;
• said end face includes a light introducing portion comprising a plurality of notched prisms including a central notched prism disposed in a center of said light introducing portion;
• and
• wherein said plurality of notched prisms, including said central notched prism, each include an apex angle, and each of said notched prisms has the same apex angle as the central notched prism.

An optical waveguide plate for a surface light emitting apparatus comprising:

• an end face for introducing light emitted from a light source;
• a light emitting surface outputting light introduced from said end face;
• said end face includes a light introducing portion comprising a plurality of notched prisms which disperse incident light;
• a flat portion is disposed in a center of said light introducing portion;
• and
• wherein said plurality of notched prisms each include an apex angle which is equal to the other apex angles.

A surface light emitting apparatus comprising:

• a light source and an optical waveguide plate including an end face for introducing light emitted from said light source and a light emitting surface for outputting the light;
• said end face including a light introducing portion comprising a plurality of notched prisms including a central notched prism disposed in a center of said light introducing portion;
• and
• wherein each of said notched prisms has an apex angle and the apex angle of each of said notched prisms is different than the apex angle of said central notched prism.

A surface light emitting apparatus comprising:

• a light source and an optical waveguide plate including an end face for introducing light emitted from said light source and a light emitting surface for outputting the light;
• said end face including a light introducing portion comprising a plurality of notched prisms including a flat portion disposed in a center of said light introducing portion;
• and
• wherein each of said notched prisms has an apex angle and the apex angles of each of said notched prisms disposed on the one side of said flat portion are different than the apex angles of the other single notched prisms on the one side of said flat portion.

A surface light emitting apparatus comprising:

• a light source and an optical waveguide plate including an end face for introducing light emitted from said light source and a light emitting surface for outputting the light;
• said end face includes a light introducing portion comprising a plurality of notched prisms including a central notched prism disposed in a center of said light introducing portion;
• and
• wherein said plurality of notched prisms, including said central notched prism, each include an apex angle, and each of said notched prisms has the same apex angle as the central notched prism.

A surface light emitting apparatus comprising:

• a light source and an optical waveguide plate including an end face for introducing light emitted from said light source and a light emitting surface for outputting the light;
• said end face includes a light introducing portion comprising a plurality of notched prisms which disperse incident light;
• a flat portion is disposed in a center of said light introducing portion;
• and
• wherein said plurality of notched prisms each include an apex angle which is equal to the other apex angles.