Optical assembly and rear-view mirror assembly having same
The optical assembly disclosed in the embodiment of the invention includes: a lighting module having a resin layer and a light emitting device inside the resin layer, and having an exit surface for emitting surface light to one side; a reflective portion having a recess in a lower portion of the exit side of the lighting module and an aspherical curved surface at the bottom of the recess; and a transparent cover on the recess to reflect the surface light to a set region.
1. An optical assembly comprising:
a housing including a receiving portion having a first depth and a recess having a region deeper than the first depth;
a lighting module that is received in the receiving portion and emitting light toward the recess;
a transparent cover disposed on the housing and covering the receiving portion and the recess; and
a light blocking member having an opening portion and disposed on the transparent cover,
wherein an outer region of the light blocking member extends to an outer region of the housing,
wherein the opening portion of the light blocking member overlaps the recess in a direction perpendicular to an outer surface of the transparent cover,
wherein the outer surface of the transparent cover faces the light blocking member,
wherein the lighting module includes a substrate, a light emitting device disposed on the substrate, and a resin layer molding the light emitting device,
wherein a light emitted from the light emitting device is emitted through a first side surface of the resin layer, and
wherein the first side surface of the resin layer is an exit surface of the lighting module and faces an upper region of the recess,
wherein the first side surface of the resin layer is substantially parallel to a light emitting surface from which the light is emitted from the light emitting device, and
wherein a second side surface of the resin layer opposite to the first side surface is not substantially parallel to the light emitting surface of the light emitting device.
2. The optical assembly of claim 1 , wherein the receiving portion is disposed on one side of the housing, and the recess is disposed on the other side of the housing.
3. The optical assembly of claim 1 , wherein a bottom of the recess has a concave curved surface.
4. The optical assembly of claim 3 , wherein the housing includes:
a support portion having the receiving portion in which the lighting module is disposed;
a reflective portion having the recess;
an inner sidewall extending from the support portion to a lower end of the reflective portion; and
an outer sidewall disposed around an upper portion of the reflective portion and the support portion,
wherein the curved surface of the recess has a gradually increasing depth from a lower end of a one side of the inner sidewall to a lower end of the other side of the inner sidewall.
5. The optical assembly of claim 3 , wherein a distance between an upper end of the curved surface of the bottom of the recess and the transparent cover is equal to or smaller than a thickness of the lighting module.
6. The optical assembly of claim 1 , wherein a bottom of the receiving portion includes a region parallel to the outer surface of the transparent cover.
7. The optical assembly of claim 1 , wherein the first side surface of the resin layer and a second side surface opposite the first side surface are not substantially parallel to each other.
8. The optical assembly of claim 1 , wherein the light emitting device is disposed closer to the second side surface than to the first side surface.
9. The optical assembly of claim 1 , wherein an area of the first side surface of the resin layer is larger than an area of the second side surface.
10. The optical assembly of claim 1 , wherein the lighting module includes a first reflective member disposed between the resin layer and the transparent cover.
11. The optical assembly of claim 1 , wherein an area of the opening portion of the light blocking member is smaller than an area of an upper surface of the recess.
12. The optical assembly of claim 1 , wherein the light blocking member does not overlap the lighting module in a direction perpendicular to the outer surface of the transparent cover.
13. The optical assembly of claim 1 , wherein the lighting module includes components disposed on the substrate, and the components are disposed in a region outside a light directivity angle of the light emitting device.
14. The optical assembly of claim 1 , wherein a bottom of the recess includes a reflective material.
15. The optical assembly of claim 1 , wherein a maximum length of the housing is in a range of 1.2 cm to 1.7 cm, and
wherein a maximum width of the housing is in a range of 0.8 cm to 1.5 cm.
16. The optical assembly of claim 1 , wherein a maximum depth of the recess is in a range of 0.4 cm to 0.5 cm from a bottom of the receiving portion.
17. The optical assembly of claim 1 , wherein the optical assembly is coupled within a rear-view mirror assembly.
18. An optical assembly comprising:
a housing including a receiving portion having a first depth and a recess having a region deeper than the first depth;
a lighting module that is received in the receiving portion and emitting light toward the recess;
a transparent cover disposed on the housing and covering the receiving portion and the recess; and
a light blocking member having an opening portion and disposed on the transparent cover,
wherein an outer region of the light blocking member extends to an outer region of the housing,
wherein the opening portion of the light blocking member overlaps the recess in a direction perpendicular to an outer surface of the transparent cover,
wherein the outer surface of the transparent cover faces the light blocking member,
wherein the lighting module includes a substrate, a light emitting device disposed on the substrate, and a resin layer molding the light emitting device,
wherein the resin layer includes a first side surface and a second side surface opposite to the first side surface,
wherein a light emitted from the light emitting device is emitted through the first side surface of the resin layer,
wherein the first side surface of the resin layer is an exit surface of the lighting module and faces an upper region of the recess,
wherein the first side surface of the resin layer is substantially parallel to a light emitting surface from which the light is emitted from the light emitting device,
wherein the first side surface and the second side surface of the resin layer are not substantially parallel to each other, and
wherein an area of the first side surface of the resin layer is larger than an area of the second side surface of the resin layer.
19. The optical assembly of claim 18 , wherein the receiving portion is disposed on one side of the housing, and the recess is disposed on the other side of the housing.
20. The optical assembly of claim 18 , wherein a bottom of the recess has a concave curved surface.