Resin laminated optical body, light source unit, optical unit, light irradiation device, image display device, method for manufacturing resin laminated optical body, and method for manufacturing light source unit

A light source unit comprising:

• a light source;
• an optical base material containing the light source;
• and
• a resin layer provided on a light emitting surface of the optical base material, wherein
• a micro concave-convex structure is formed in a surface of the resin layer.

A method for manufacturing a resin laminated optical body, comprising:

• a first step of preparing an optical base material having a curved surface;
• a second step of forming an uncured resin layer on the curved surface of the optical base material;
• a third step of preparing a flexible master having an inverted structure of a light diffusing structure formed in a surface, the flexible master having flexibility;
• a fourth step of bringing the flexible master into proximity to the uncured resin layer;
• a fifth step of pressing the inverted structure of the flexible master against the uncured resin layer while applying a printing pressure to the flexible master to deform the flexible master;
• and
• a sixth step of curing the uncured resin layer in a state where the inverted structure of the flexible master is pressed against the uncured resin layer to form a resin layer on the curved surface of the optical base material.

A method for manufacturing a light source unit, comprising:

• a first step of preparing an optical base material having a curved surface and containing a light source;
• a second step of forming an uncured resin layer on the curved surface of the optical base material;
• a third step of preparing a flexible master having an inverted structure of a micro concave-convex structure formed in a surface, the flexible master having flexibility;
• a fourth step of bringing the flexible master into proximity to the uncured resin layer;
• a fifth step of pressing the inverted structure of the flexible master against the uncured resin layer while applying a printing pressure to the flexible master to deform the flexible master;
• and
• a sixth step of curing the uncured resin layer in a state where the inverted structure of the flexible master is pressed against the uncured resin layer to form a resin layer on the curved surface of the optical base material.

A method for manufacturing a light source unit, comprising:

• a first step of preparing an optical base material having a curved surface;
• a second step of forming an uncured resin layer on the curved surface of the optical base material;
• a third step of preparing a flexible master having an inverted structure of a micro concave-convex structure formed in a surface, the flexible master having flexibility;
• a fourth step of bringing the flexible master into proximity to the uncured resin layer;
• a fifth step of pressing the inverted structure of the flexible master against the uncured resin layer while applying a printing pressure to the flexible master to deform the flexible master;
• a sixth step of curing the uncured resin layer in a state where the inverted structure of the flexible master is pressed against the uncured resin layer to form a resin layer on the curved surface of the optical base material;
• and
• a seventh step of placing, on a light source, the optical base material on which the resin layer has been formed.