Light beam adjusting device and optical device for vehicle lamp

A light beam adjusting device comprising:

• one or more first light incidence faces arranged to receive an incident light beam;
• one or more total reflection collimating faces arranged to totally reflect the incident light beam from the first light incidence face to collimate the incident light beam;
• a first light exit face, from which the collimated light beam is emitted;
• one or more collimating part, each of which has the total reflection collimating face, the first light incidence face and a second light exit face, wherein the light beam collimated by the total reflection collimating face is emitted from the second light exit face;
• and
• a light exit directing part having the first light exit face and a second light incidence face arranged on a side opposite to the first light exit face, the second light incidence face receiving the light beam exiting from the second light exit face,
• wherein the second light exit face of each collimating part is arranged to face towards the second light incidence face.

An optical device for a vehicle lamp, comprising:

• a light beam adjusting device, including:
• one or more collimating parts, each collimating part including
• one or more first light incidence faces arranged to receive an incident light beam, and
• one or more total reflection collimating faces arranged to totally reflect the incident light beam from a first light incidence face to collimate the incident light beam,
• a second light exit face, and
• a first light exit face, from which the collimated light beam is emitted;
• and
• one or more light source arranged to emit the incident light beam towards the first light incidence face.