Patent ID: 7119895

Claim:
A method of adjusting an optical component comprising the step of adjusting an optical axis of a reference laser beam emitted from a reference beam unit before aligning said optical component by applying said reference laser beam to said optical component, said adjusting step comprising the steps of: placing an optical axis detecting unit in a first position in the optical axis of said reference beam unit, emitting a reference laser beam from a laser oscillator incorporated in a laser beam unit of said reference beam unit, rotating said laser beam unit to detect an optical axis position of the reference laser beam through said optical axis detecting unit, thereby adjusting said laser beam unit; and placing said optical axis detecting unit in a second position different from said first position in the optical axis of the reference beam unit, emitting the reference laser beam from the laser oscillator, rotating said laser beam unit to detect an optical axis position of the reference laser beam through said optical axis detecting unit, thereby adjusting the laser beam unit.