Light source apparatus, display apparatus, terminal device, optical member and optical unit

An optical member comprising:

• a flat plate portion made of a transparent material;
• and
• a plurality of cones of a transparent material which are formed on one side of said flat plate portion, and whose center axes are parallel to one another.

An optical unit comprising:

• a light guide member which outputs light input from a first side in a first direction, and outputs light input from a second side different from said first side in a second direction different from said first direction;
• and
• an optical member which outputs light output from said light guide member in said first direction in a first angular range, and outputs light output from said light guide member in said second direction in a second angular range wider than said first angular range, and has a flat plate portion made of a transparent material, and a protruding portion of a transparent material which is formed on that side of said flat plate portion which faces said light guide member and has a top portion in close contact with said light guide member, and whose side surfaces have a curved surface convex in a direction going toward said light guide member, and another curved surface convex in a direction going away from said light guide member.

An optical unit comprising:

• a light guide member which outputs light input from a first side in a first direction, and outputs light input from a second side different from said first side in a second direction different from said first direction;
• and
• an optical member which outputs light output from said light guide member in said first direction in a first angular range, and outputs light output from said light guide member in said second direction in a second angular range wider than said first angular range, and has a flat plate portion made of a transparent material, and a protruding portion of a transparent material which is formed on that side of said flat plate portion which faces said light guide member and has a top portion in close contact with said light guide member, and whose side surfaces have a curved surface convex in a direction going toward said light guide member, and a rough surface.

An optical unit comprising:

• a light guide member which outputs light input from a first side in a first direction, and outputs light input from a second side different from said first side in a second direction different from said first direction, an inclined surface to be irradiated with said light input from said second side being formed on a third side of said light guide member which differs from said first and second sides;
• and
• an optical member which outputs light output from said light guide member in said first direction in a first angular range, and outputs light output from said light guide member in said second direction in a second angular range wider than said first angular range, and has a flat plate portion made of a transparent material, and a protruding portion of a transparent material which is formed on that side of said flat plate portion which faces said light guide member and has a top portion in close contact with said light guide member.