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.

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.

A intelligent headlight system for a bicycle according to an embodiment of the present invention comprises: a bicycle body; a portable terminal which may be carried by a rider of the bicycle body and has a GPS module, for detecting the location information of the bicycle body, so as to measure the running speed on the basis of the location information of the bicycle body; and a headlight apparatus which is disposed on the bicycle body so as to cast light on the scene ahead of the bicycle body, is communicatably connected to the portable terminal so as to receive the running speed of the bicycle body, and is formed such that irradiation patterns may vary in accordance with the running speed of the bicycle body.

A intelligent headlight system for a bicycle according to an embodiment of the present invention comprises: a bicycle body; a portable terminal which may be carried by a rider of the bicycle body and has a GPS module, for detecting the location information of the bicycle body, so as to measure the running speed on the basis of the location information of the bicycle body; and a headlight apparatus which is disposed on the bicycle body so as to cast light on the scene ahead of the bicycle body, is communicatably connected to the portable terminal so as to receive the running speed of the bicycle body, and is formed such that irradiation patterns may vary in accordance with the running speed of the bicycle body.

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.

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.

A vehicular lamp having a novel structure includes: a light source configured to emit light from a semiconductor light-emitting element along an optical path; a light distribution control device disposed on the optical path of the light emitted from the light source; and a blower fan configured to generate an airflow while the light source and the light distribution control device are disposed downwind of the blower fan, and blow air to the light source and the light distribution control device.

A vehicular lamp having a novel structure includes: a light source configured to emit light from a semiconductor light-emitting element along an optical path; a light distribution control device disposed on the optical path of the light emitted from the light source; and a blower fan configured to generate an airflow while the light source and the light distribution control device are disposed downwind of the blower fan, and blow air to the light source and the light distribution control device.

Provided is a lamp unit equipped with: a rotary reflector which, while rotating, reflects light emitted from a light source to scan in a prescribed direction; and a motor for rotary-driving the rotary reflector, wherein the rotary reflector (light reflecting blades, boss) and a rotor (rotor yoke) of the motor are formed integrally. This configuration enables improving workability in mounting the rotary reflector and the rotor to a rotary shaft.

Provided is a lamp unit equipped with: a rotary reflector which, while rotating, reflects light emitted from a light source to scan in a prescribed direction; and a motor for rotary-driving the rotary reflector, wherein the rotary reflector (light reflecting blades, boss) and a rotor (rotor yoke) of the motor are formed integrally. This configuration enables improving workability in mounting the rotary reflector and the rotor to a rotary shaft.