Laser beam collimation apparatus and manufacturing method thereof

A laser beam collimation apparatus, comprising:

• a laser;
• and
• a collimating lens disposed opposite to the laser,
• wherein the laser is fixed on a laser seat, and the collimating lens is fixed on a collimating lens seat;
• wherein a transparent rigid ring is provided between the collimating lens seat and the laser seat;
• and
• wherein at least one gap is provided between the transparent rigid ring and the laser seat and between the transparent rigid ring and the collimating lens seat, and the at least one gap is filled with a photosensitive adhesive, wherein the at least one gap comprises at least one of a first gap between the transparent rigid ring and the laser seat and a second gap between the transparent rigid ring and the collimating lens seat.

A method for manufacturing a laser beam collimation apparatus, comprising:

• assembling a collimating lens to a collimating lens seat to form a first component, and assembling a laser to a laser seat to form a second component;
• applying a photosensitive adhesive on at least one of a surface of the first component and a surface of the second component for assembling a transparent rigid ring, and bonding the transparent rigid ring to the photosensitive adhesive applied on the at least one of the first component and the second component to form a third component;
• collimating the third component relative to the second component or the first component three-dimensionally;
• and
• when collimation is completed, curing the photosensitive adhesive to form the laser beam collimation apparatus.