| 摘要 |
PROBLEM TO BE SOLVED: To provide a light emitting structure which is small-sized and which can acquire uniform surface light emission while securing heat radiation properties.SOLUTION: A light emitting structure 1 includes a heat-resistant film 2, a light emitting element 3, a heat radiation member 4, a first optical sheet 5 and a second optical sheet 6. The first optical sheet 5 is provided on a light radiation side of the light emitting element 3, and it has a first incident surface 51 where radiation light of the light emitting element 3 enters, and a first emission surface 52 where incident light from the first incident surface 51 emits. The second optical sheet 6 is superposed on the first optical sheet 5 being separated at a predetermined distance from the first optical sheet 5, and it has a second incident surface 61 where the emission light from the first emission surface 52 enters, and a second emission surface 62 where the incident light from the second incident surface 61 emits. On the first incident surface 51, a first prism pattern 53 comprising a plurality of grooves 53a extending in a first direction X is formed. On the second incident surface 61, a second prism pattern 63 comprising a plurality of grooves 63a extending in a second direction Y orthogonal to the first direction X is formed.SELECTED DRAWING: Figure 2 |
