Patent ID: 11971165
Assignee: MIN DENG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A reflective light source device, comprising:
at least one light reflection assembly; and
a light source assembly, combined with the at least one light reflection assembly and comprising an effective light-emitting portion,
the light reflection assembly comprising:
a sidewall portion, comprising a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall, wherein the first sidewall and the second sidewall are opposite to each other, the third sidewall and the fourth sidewall are opposite to each other, and a reflective chamber is delimited by the first sidewall, the second sidewall, the third sidewall, and the fourth sidewall, and the reflective chamber has a first opening and a second opening at opposite ends;
wherein the first opening is in a first reference plane and is at least partially coplanar with the first reference plane, and a first reference straight line is perpendicularly intersected with the first reference plane at a first intersection point in the first opening,
on a first cross section of the light reflection assembly, which is coplanar with the first reference straight line and is intersected with the first sidewall and the second sidewall, an inner surface of the first sidewall facing the reflective chamber has a first end point on the first reference plane and a second end point opposite to the first end point, and an inner surface of the second sidewall facing the reflective chamber has a third end point on the first reference plane and a fourth end point opposite to the third end point,
an included angle between a first straight line segment connecting the first end point and the second end point and a part of the first reference plane overlapping with the first opening is a first included angle, an included angle between a second straight line segment connecting the third end point and the fourth end point and the part of the first reference plane overlapping with the first opening is a second included angle, and the first included angle is smaller than the second included angle, and the first included angle faces the second included angle,
wherein the inner surface of the second sidewall has at least one convex portion protruding toward the reflective chamber, wherein on the first cross section, a part of the convex portion is located at a side of the second straight line segment facing the first sidewall and goes beyond the second straight line segment so that two parts of the second sidewall are located on both sides of the second straight line segment, respectively,
wherein a light-emitting centerline direction of the light source assembly is same as an extending direction of the first reference straight line, and the first reference straight line is intersected with the effective light-emitting portion of the light source assembly.