Light source module and illumination device using the same

A vehicle illumination device, comprising:

• a housing having a shutter;
• and
• a light source module, coupled to the housing, comprising:
• a column having a front;
• and
• an LED light source, fixed to the front end of the column, being configured to emit a light beam for forming an illumination area having a cut-off line through the shutter;
• wherein the LED light source has an effective horizontal width being substantially from 6 mm to 18 mm.

A light source module for an illumination device, the illumination device comprising a reflector and a shutter, the light source module comprising:

• a column facing the shutter along a direction and having at least one side;
• and
• an LED light source, fixed to the at least one side of the column, being configured to emit a light beam for forming an illumination area having a cut-off line via the reflector and through the shutter;
• wherein the at least one side of the column forms an angle with the direction, and the angle is substantially less than 45 degrees.

A light source module for an illumination device, the illumination device comprising a reflector and a shutter, the light source module comprising:

• a column having at least one side;
• and
• at least one LED light source, fixed to the at least one side of the column, being configured to emit a light beam for forming an illumination area having a cut-off line via the reflector and through the shutter;
• wherein the at least one LED light source has a plurality of LED chips, each of distances between each two adjacent LED chips is substantially from 50 micrometer (μm) to 900 μm.