US 12,723,728 B2Granted

Lamp for vehicle

AssigneeHyundai Mobis Co., Ltd.

InventorsTae Yang Park, Na Ram Jun, Hyun Soo Lee

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Abstract

A lamp for a vehicle includes a light source, and a light guide part to receive light emitted from the light source, in which a lower surface portion of the light guide part includes a lower total reflection region in which the light emitted from the light source is totally reflected, and a refraction region spaced apart forward from the lower total reflection region such that the light emitted from the light source is refracted while passing through the refraction region, and in which an upper surface portion of the light guide part includes an upper total reflection region spaced apart forward from the lower total reflection region, spaced apart rearward from the refraction region, such that the light, which is emitted from the light source and totally reflected in the lower total reflection region, is totally reflected.

Claims17

Dependent claims

A lamp for a vehicle, the lamp comprising:

a light source;
and
a light guide part disposed at one side of the light source and configured to receive light emitted from the light source,
wherein the light guide part comprises:
a front surface portion configured to define a front region of the light guide part;
a rear surface portion configured to define a rear region of the light guide part;
an upper surface portion configured to connect the front surface portion to the rear surface portion and configured to define an upper region of the light guide part;
and
a lower surface portion configured to connect the front surface portion to the rear surface portion and configured to define a lower region of the light guide part,
wherein the lower surface portion comprises:
a lower total reflection region in which the light emitted from the light source is totally reflected;
and
a refraction region spaced apart forward from the lower total reflection region and configured such that the light emitted from the light source is refracted while passing through the refraction region,
wherein the upper surface portion comprises an upper total reflection region spaced apart forward from the lower total reflection region, spaced apart rearward from the refraction region, and configured such that the light, which is emitted from the light source and totally reflected in the lower total reflection region, is totally reflected, and
wherein the lower total reflection region comprises:
a first lower total reflection surface having an inclined surface shape lowered forward;
and
a second lower total reflection surface connected to a front end of the first lower total reflection surface and having an inclined surface shape raised forward.

15 more elements

A lamp for a vehicle, the lamp comprising:

a light source;
and
a light guide part disposed at one side of the light source and configured to receive light emitted from the light source,
wherein the light guide part comprises:
a front surface portion configured to define a front region of the light guide part;
a rear surface portion configured to define a rear region of the light guide part;
an upper surface portion configured to connect the front surface portion to the rear surface portion and configured to define an upper region of the light guide part;
and
a lower surface portion configured to connect the front surface portion to the rear surface portion and configured to define a lower region of the light guide part,
wherein the lower surface portion comprises:
a lower total reflection region in which the light emitted from the light source is totally reflected;
and
a refraction region spaced apart forward from the lower total reflection region and configured such that the light emitted from the light source is refracted while passing through the refraction region,
wherein the upper surface portion comprises an upper total reflection region spaced apart forward from the lower total reflection region, spaced apart rearward from the refraction region, and configured such that the light, which is emitted from the light source and totally reflected in the lower total reflection region, is totally reflected, and
wherein the upper total reflection region has a shape recessed downward.

12 more elements

Dependencies are inferred from the claim text.