A vehicle lamp includes a light source configured to draw a road surface, a projection lens configured to transmit light emitted from the light source, and a movable shade disposed in the vicinity of a rear focal point of the projection lens. The movable shade includes at least one plate-shaped shade which has a light-shielding surface along a direction orthogonal to an optical axis of the projection lens. The at least one plate-shaped shade is formed with at least one light-transmitting part having an enclosed shape.

A light amount adjustment device includes a base member, a rotation member rotatably held with respect to the base member, and a light amount adjustment member engaged with the rotation member and configured to be driven by the rotation member to adjust an amount of passing light. The rotation member includes a first surface area in contact with the base member and a second surface area not in contact with the base member. A surface roughness of the first surface area is greater than a surface roughness of the second surface area.

A light amount adjustment device includes a base member, a rotation member rotatably held with respect to the base member, and a light amount adjustment member engaged with the rotation member and configured to be driven by the rotation member to adjust an amount of passing light. The rotation member includes a first surface area in contact with the base member and a second surface area not in contact with the base member. A surface roughness of the first surface area is greater than a surface roughness of the second surface area.

A headlight device and a bending headlight module thereof are provided. The headlight device includes a main headlight module and a bending headlight module. The main headlight module is capable of generating a first lighting area which is a light pattern that complies with the regulations of low beam headlamps. The main headlight module includes a main optical axis, and the main headlight module defines a horizontal plane and a vertical plane perpendicular to the horizontal plane, and the main optical axis is parallel to the horizontal plane and the vertical plane. The bending headlight module is disposed close to the main headlight module, and the bending headlight module includes a first reflecting unit, a first lighting unit, a first cut-off plate unit, and a first lens unit.

A headlight device and a bending headlight module thereof are provided. The headlight device includes a main headlight module and a bending headlight module. The main headlight module is capable of generating a first lighting area which is a light pattern that complies with the regulations of low beam headlamps. The main headlight module includes a main optical axis, and the main headlight module defines a horizontal plane and a vertical plane perpendicular to the horizontal plane, and the main optical axis is parallel to the horizontal plane and the vertical plane. The bending headlight module is disposed close to the main headlight module, and the bending headlight module includes a first reflecting unit, a first lighting unit, a first cut-off plate unit, and a first lens unit.

A headlight device is provided. The headlight device includes a main headlight module and a high-speed headlight module. The main headlight module is capable of generating a first lighting area having a light pattern that complies with the regulations of low beam headlamps. In addition, the main headlight module includes a main optical axis, and the main headlight module defines a horizontal plane and a vertical plane perpendicular to the horizontal plane, and the main optical axis is parallel to the horizontal plane and the vertical plane.

A headlight device is provided. The headlight device includes a main headlight module and a high-speed headlight module. The main headlight module is capable of generating a first lighting area having a light pattern that complies with the regulations of low beam headlamps. In addition, the main headlight module includes a main optical axis, and the main headlight module defines a horizontal plane and a vertical plane perpendicular to the horizontal plane, and the main optical axis is parallel to the horizontal plane and the vertical plane.

A light amount adjustment device includes a base member, a rotation member rotatably held with respect to the base member, and a light amount adjustment member engaged with the rotation member and configured to be driven by the rotation member to adjust an amount of passing light. The rotation member includes a first surface area in contact with the base member and a second surface area not in contact with the base member. A surface roughness of the first surface area is greater than a surface roughness of the second surface area.

A light amount adjustment device includes a base member, a rotation member rotatably held with respect to the base member, and a light amount adjustment member engaged with the rotation member and configured to be driven by the rotation member to adjust an amount of passing light. The rotation member includes a first surface area in contact with the base member and a second surface area not in contact with the base member. A surface roughness of the first surface area is greater than a surface roughness of the second surface area.

A headlight device is provided. The headlight device includes a main headlight module and a high-speed headlight module. The main headlight module is capable of generating a first lighting area having a light pattern that complies with the regulations of low beam headlamps. In addition, the main headlight module includes a main optical axis, and the main headlight module defines a horizontal plane and a vertical plane perpendicular to the horizontal plane, and the main optical axis is parallel to the horizontal plane and the vertical plane.