Fill light and electronic device
A fill light and an electronic device are provided. The fill light includes a first reflector, a second reflector, a light-transmitting ring, and a light-emitting light source. The first reflector and the light-transmitting ring are located on a same side of the second reflector, and the light-transmitting ring surrounds the first reflector. The first reflector has a first reflection surface, the second reflector has a second reflection surface, and the first reflection surface is disposed opposite to the second reflection surface. A light-emitting side of the light-emitting light source faces the first reflection surface, and light emitted by the light-emitting light source is emitted from the light-transmitting ring after being reflected by the first reflection surface and the second reflection surface. The first reflection surface, the second reflection surface, and the light-transmitting ring are all rotationally symmetrical about a central optical axis of the light-emitting light source.
1 . A fill light, comprising:
a first reflector having a first reflection surface;
a second reflector having a second reflection surface disposed opposite to the first reflection surface of the first reflector;
a light-transmitting ring surrounding the first reflector; and
a light-emitting light source, wherein a light-emitting side of the light-emitting light source faces the first reflection surface, and light emitted by the light-emitting light source is emitted from the light-transmitting ring after being reflected by the first reflection surface and the second reflection surface,
wherein the first reflector and the light-transmitting ring are located on a same side of the second reflector,
the first reflection surface, the second reflection surface, and the light-transmitting ring are all rotationally symmetrical about a central optical axis of the light-emitting light source, and
the second reflection surface comprises a second concave region, wherein:
a distance between any point on the second concave region and the central optical axis of the light-emitting light source is a third distance,
a distance between the any point on the second concave region and a plane on which the light-emitting light source is located is a fourth distance,
the third distance is positively correlated with the fourth distance, and
the second concave region is formed by rotating a second curve around the central optical axis of the light-emitting light source as a rotation axis, the second curve being a Bezier curve.
2 . The fill light according to claim 1 , wherein the first reflection surface comprises a first concave region, wherein
a distance between any point on the first concave region and the central optical axis of the light-emitting light source is a first distance,
a distance between the any point on the first concave region and the plane on which the light-emitting light source is located is a second distance, and
the first distance is positively correlated with the second distance.
3 . The fill light according to claim 2 , wherein the first concave region is formed by rotating a first curve around the central optical axis of the light-emitting light source as a rotation axis, the first curve being a Bezier curve.
4 . The fill light according to claim 2 , wherein the first reflection surface further comprises a first planar region, and the first planar region is located on a side that is of the first concave region and that is away from the central optical axis, and is disposed in parallel with the light-transmitting ring.
5 . The fill light according to claim 1 , wherein the second reflection surface further comprises a second planar region, and the second planar region is located on a side that is of the second concave region and that is close to the central optical axis, and is disposed in parallel with the light-transmitting ring.
6 . The fill light according to claim 1 , wherein in a direction along the central optical axis of the light-emitting light source, an orthographic projection of the first reflection surface and an orthographic projection of the light-transmitting ring are both located in an orthographic projection of the second reflection surface.
7 . The fill light according to claim 1 , wherein the fill light further comprises a decorative cover, the light-transmitting ring is disposed around the decorative cover, and the first reflector is disposed on a side that is of the decorative cover and that faces the second reflector.
8 . The fill light according to claim 7 , wherein an outer surface of the light-transmitting ring is flush with a surface of a side that is of the decorative cover and that is away from the first reflector.
9 . The fill light according to claim 1 , wherein the fill light further comprises a light guide member, and the first reflector, the light-transmitting ring, and the second reflector are all disposed on an outer surface of the light guide member.
10 . The fill light according to claim 9 , wherein the light guide member is provided with an accommodation groove, the first reflector is attached on a bottom wall of the accommodation groove, and the fill light further comprises a decorative cover disposed in the accommodation groove.
11 . The fill light according to claim 1 , wherein the fill light further comprises a diffusion film disposed on a light-emitting surface of the light-transmitting ring.
12 . An electronic device, comprising:
a fill light, comprising:
a first reflector having a first reflection surface;
a second reflector having a second reflection surface disposed opposite to the second reflection surface of the first reflector;
a light-transmitting ring surrounding the first reflector; and
a light-emitting light source, wherein a light-emitting side of the light-emitting light source faces the first reflection surface, light emitted by the light-emitting light source is emitted from the light-transmitting ring after being reflected by the first reflection surface and the second reflection surface,
wherein the first reflector and the light-transmitting ring are located on a same side of the second reflector,
the first reflection surface, the second reflection surface, and the light-transmitting ring are all rotationally symmetrical about a central optical axis of the light-emitting light source, and
the first reflection surface comprises a first concave region, wherein:
a distance between any point on the first concave region and the central optical axis of the light-emitting light source is a first distance,
a distance between the any point on the first concave region and a plane on which the light-emitting light source is located is a second distance,
the first distance is positively correlated with the second distance, and
the first concave region is formed by rotating a first curve around the central optical axis of the light-emitting light source as a rotation axis, the first curve being a Bezier curve.
13 . The electronic device according to claim 12 , further comprising a circuit board, and the light-emitting light source is disposed on the circuit board.
14 . The electronic device according to claim 13 , further comprising:
a housing provided with a mounting hole,
wherein the fill light further comprises a decorative cover, the light-transmitting ring is disposed around the decorative cover, and the first reflector is disposed on a surface of a side that is of the decorative cover and that faces the light-emitting light source, and
the light-transmitting ring and the decorative cover are both mounted in the mounting hole, and the first reflector, the second reflector, and the light-transmitting ring surround an optical reflection space.
15 . The electronic device according to claim 12 , wherein in the fill light, the second reflection surface comprises a second concave region, wherein
a distance between any point on the second concave region and the central optical axis of the light-emitting light source is a third distance,
a distance between the any point on the second concave region and the plane on which the light-emitting light source is located is a fourth distance, and
the third distance is positively correlated with the fourth distance.
16 . The electronic device according to claim 15 , wherein the second concave region is formed by rotating a second curve around the central optical axis of the light-emitting light source as a rotation axis, the second curve being a Bezier curve.