Reflective member and reflection module including reflective member
A reflective member includes an incident surface configured to receive incident light; a reflective surface configured to receive the incident light from the incident surface and reflect the incident light; an emission surface configured to receive the reflected light from the reflective surface and emit the reflected light; and a light blocking portion disposed on at least one edge of either one or both of the incident surface and the emission surface, wherein an end of the light blocking portion includes a plurality of convex portions and a plurality of concave portions.
1 . A reflective member comprising:
an incident surface configured to receive incident light;
a reflective surface configured to receive the incident light from the incident surface and reflect the incident light; and
an emission surface configured to receive the reflected light from the reflective surface and emit the reflected light,
wherein the emission surface comprises a light blocking portion comprising:
a first light blocking layer disposed along an edge of the emission surface adjacent to the incident surface and comprising a curved surface; and
a second light blocking layer disposed along an edge of the emission surface adjacent to the reflective surface and comprising a curved surface, and
a shape of the first light blocking layer of the emission surface is different from a shape of the second light blocking layer of the emission surface.
2 . The reflective member of claim 1 , wherein each of the first light blocking layer of the emission surface and the second light blocking layer of the emission surface comprises a plurality of convex portions protruding toward a center of the emission surface, and a plurality of concave portions protruding toward an edge of the emission surface.
3 . The reflective member of claim 2 , wherein the convex portions and the concave portions are alternatively and repeatedly disposed along a longitudinal direction of each of the first light blocking layer of the emission surface and the second light blocking layer of the emission surface.
4 . The reflective member of claim 3 , wherein a virtual line connecting apexes of the convex portions is a curved line, or a virtual line connecting apexes of the concave portions is a curved line.
5 . The reflective member of claim 2 , wherein the convex portions and the concave portions are a curved surface, or a contact point of two adjacent convex portions among the convex portions or two adjacent concave portions among the concave portions.
6 . The reflective member of claim 1 , wherein the incident surface comprises a light blocking portion, and
the light blocking portion of the incident surface comprises either one or both of:
a first light blocking layer disposed along an edge of the incident surface adjacent to the reflective surface; and
a second light blocking layer disposed along an edge of the incident surface adjacent to the emission surface.
7 . The reflective member of claim 6 , wherein the light blocking portion of the incident surface comprises both of the first light blocking layer of the incident surface and the second light blocking layer of the incident surface, and
a shape of the first light blocking layer of the incident surface is different from a shape of the second light blocking layer of the incident surface.
8 . A reflective module comprising:
a reflective member comprising an incident surface, a reflective surface, and an emission surface; and
a holder on which the reflective member is disposed,
wherein the reflective member further comprises a light blocking portion disposed on the emission surface and comprising:
a first light blocking layer disposed along an edge of the emission surface adjacent to the incident surface and comprising a curved surface; and
a second light blocking layer disposed along an edge of the emission surface adjacent to the reflective surface and comprising a curved surface, and
the holder comprises:
a first cover portion having a curved surface and covering one edge of the emission surface not covered by either one of the first light blocking layer and the second light blocking layer; and
a second cover portion having a curved surface facing the curved surface of the first cover portion and covering another edge of the emission surface not covered by either one of the first light blocking layer and the second light blocking layer and opposite to the one edge of the emission surface covered by the first cover portion.
9 . The reflective module of claim 8 , wherein each of the first light blocking layer of the emission surface and the second light blocking layer of the emission surface comprises a plurality of convex portions protruding toward a center of the emission surface, and a plurality of concave portions protruding toward an edge of the emission surface.
10 . The reflective module of claim 8 , wherein the holder further comprises:
a mounting surface on which the reflective member is mounted;
a first sidewall surrounding a first side surface of the reflective member; and
a second sidewall surrounding a second side surface of the reflective member,
the first cover portion extends from the first sidewall toward the second sidewall and covers a first edge of the emission surface adjacent to the first sidewall; and
the second cover portion extends from the second sidewall toward the first sidewall and covers a second edge of the emission surface adjacent to the second sidewall.
11 . The reflective module of claim 8 , wherein each of the first cover portion and the second cover portion has a width in a direction parallel to the edges of the emission surface along which the first light blocking layer of the emission surface and the second light blocking layer of the emission surface are disposed that changes in a direction perpendicular to the edges of the emission surface along which the first light blocking layer of the emission surface and the second light blocking layer of the emission surface are disposed.