F21S45/43

VEHICLE LAMP
20210172578 · 2021-06-10 · ·

A vehicle lamp (1) includes: a light source (51) that emits light of a predetermined wavelength; a diffractive optical element (53) that diffracts light emitted from the light source (51) into a predetermined light distribution pattern; a wavelength conversion element (55) in which the light distribution pattern is projected, and that widens a wavelength band of incident light and emits the light; and a projection lens (56) that projects the light distribution pattern projected on the wavelength conversion element (55).

Vehicle lamp

A vehicle lamp is provided with a light source (51) that emits light in a predetermined wavelength band, a diffractive optical element (53) that diffracts the light emitted from the light source (51) to have a predetermined light distribution pattern, and a shade (55) that shields, of the light forming the predetermined light distribution pattern, at least part of the light forming the outer peripheral portion of the predetermined light distribution pattern, and the shade (55) shields the light forming the outer peripheral portion of the predetermined light distribution pattern over the entire circumference of the light distribution pattern.

VEHICLE LAMP WITH DEHUMIDIFICATION
20210270442 · 2021-09-02 ·

A vehicle lamp is disposed. The vehicle lamp includes a light source, a glass disposed in front of the light source, a housing configured to support the light source and the glass and form an appearance, a thermoelectric element unit configured to generate cold wind and hot wind by introducing external air of the housing, a first flow path configured to introduce one of the cold wind and the hot wind generated by the thermoelectric element unit into the housing, and a second flow path configured to discharge the other one of the cold wind and the hot wind to outside of the housing, the thermoelectric element unit includes a first part configured to be connected to the first flow path and generate one of cold air and hot air, a second part configured to be connected to the second flow path and generate the other one of the cold air and the hot air, a body configured to partition an arrangement space of the first part and the second part and in which an opening is formed on an upper surface, and a fan configured to be disposed on the opening of the body and introduce the air in a direction from an upper portion to a lower portion, and the thermoelectric element unit is positioned on an upper end of an external rear surface of the housing.

Headlight unit
11022270 · 2021-06-01 · ·

A headlight unit including a cooling circuit provided with at least two air circulation pipes linked to at least a same device for generating an air flow, particularly a fan, and provided with at least one element for varying a proportion of the air flow, which proportion is distributed into each of the at least two pipes.

Lighting module for a motor vehicle

A lighting module for a motor vehicle including: a support plate; at least one source of light which is arranged on a first face of the support plate; a heat dissipater which is arranged on a second face of the support plate, opposite the first face; a fan which is arranged between the heat dissipater and a plenum, the fan being designed to aspirate a flow of hot air which is dissipated by the heat dissipater, and is obtained from an incoming flow of air; a plenum which is designed to cover the fan, the plenum including a peripheral skirt which is designed to surround the heat dissipater; an optical assembly which cooperates with rays of light of the at least one source of light, in order to produce a light beam.

Lighting module for a motor vehicle

A lighting module for a motor vehicle including: a support plate; at least one source of light which is arranged on a first face of the support plate; a heat dissipater which is arranged on a second face of the support plate, opposite the first face; a fan which is arranged between the heat dissipater and a plenum, the fan being designed to aspirate a flow of hot air which is dissipated by the heat dissipater, and is obtained from an incoming flow of air; a plenum which is designed to cover the fan, the plenum including a peripheral skirt which is designed to surround the heat dissipater; an optical assembly which cooperates with rays of light of the at least one source of light, in order to produce a light beam.

Cooling device for an automotive luminous device

A cooling device for cooling a light source located in an automotive luminous device. This cooling device includes a heat sink intended to be in thermal contact with the light source, a plurality of fins in direct thermal contact with the heat sink, a plurality of pins in direct thermal contact with the heat sink and a fan. The fan is arranged to make a fluid flow from an inlet of the cooling device to an outlet to the cooling device, so that the plurality of fins are nearer the inlet than the plurality of pins.

Cooling device for an automotive luminous device

A cooling device for cooling a light source located in an automotive luminous device. This cooling device includes a heat sink intended to be in thermal contact with the light source, a plurality of fins in direct thermal contact with the heat sink, a plurality of pins in direct thermal contact with the heat sink and a fan. The fan is arranged to make a fluid flow from an inlet of the cooling device to an outlet to the cooling device, so that the plurality of fins are nearer the inlet than the plurality of pins.

LIGHT DEVICE FOR A MOTOR VEHICLE
20210080073 · 2021-03-18 ·

The light device comprises a housing (1) covered with a transparent or semi-transparent cover (2) that delimit an inner chamber (3) inside the housing (1), a light unit (5) situated in the chamber (3) and equipped with at least one light source, a cooler (4) associated with the light unit (5), and a tubular cooling conduit (7) that passes through an opening (10) in the housing (1) into the chamber (3) to supply cooling medium (8) from the cooling medium (8) source installed outside the housing (1) to the cooler (4) and comprises a drive means (74) for forced flow of the cooling medium (8) in the tubular cooling conduit (7). The tubular cooling conduit (7) is connected to the cooler (4) in such a way that the cooling medium (8) does not escape from the tubular cooling conduit (7) and cooler (4) to the surrounding space in the chamber (3). Inside the tubular cooling conduit (7), one or more adjacent supply channels (72) are provided to supply the cooling medium (8) to the cooler (4) in one direction, and next to the supply channel (72) or channels (72), one or more exhaust channels (73) are provided to simultaneously discharge the cooling medium from the cooler (4) in the opposite direction out of the housing (1).

LIGHT DEVICE FOR A MOTOR VEHICLE
20210080073 · 2021-03-18 ·

The light device comprises a housing (1) covered with a transparent or semi-transparent cover (2) that delimit an inner chamber (3) inside the housing (1), a light unit (5) situated in the chamber (3) and equipped with at least one light source, a cooler (4) associated with the light unit (5), and a tubular cooling conduit (7) that passes through an opening (10) in the housing (1) into the chamber (3) to supply cooling medium (8) from the cooling medium (8) source installed outside the housing (1) to the cooler (4) and comprises a drive means (74) for forced flow of the cooling medium (8) in the tubular cooling conduit (7). The tubular cooling conduit (7) is connected to the cooler (4) in such a way that the cooling medium (8) does not escape from the tubular cooling conduit (7) and cooler (4) to the surrounding space in the chamber (3). Inside the tubular cooling conduit (7), one or more adjacent supply channels (72) are provided to supply the cooling medium (8) to the cooler (4) in one direction, and next to the supply channel (72) or channels (72), one or more exhaust channels (73) are provided to simultaneously discharge the cooling medium from the cooler (4) in the opposite direction out of the housing (1).