Patent ID: 6973233

Claim:
A wavelength-variable light outputting apparatus comprising: a light source outputting light having a plurality of wavelengths; a swinging first galvanometric scanner provided with spectroscopic means for spectrally dividing said light outputted from said light source; a swinging second galvanometric scanner provided with a shielding or reflecting member adapted to block or reflect at least a part of light outputted from said spectroscopic means, wherein said swinging first and second galvanometric scanners have swinging axes that extend in different directions from each other; an optical fiber disposed at a position where light outputted from said spectroscopic means can be made incident by way of said shielding or reflecting member; and a control unit that controls said swinging first and second galvanometric scanners, said swinging second galvanometric scanner being controlled so as to control a quantity of light incident on said optical fiber, the quantity of light incident on the optical fiber varying in accordance with the transmission or reflection of light by said shielding or reflecting member, respectively.