Variable angle, the wide angular illuminating is disclosed, one execution feature supplies the light ray, the illuminant The light ray it absorbs light and in order to transmit, it connects with the illuminant optically, the optical cable Operation it was connected to the optical cable possibly, the hand piece Operation being connected by the hand piece possibly, being connected by the optical cable optically, the light ray it absorbs light and transmits, the optical fiber The light ray absorbing light, supplying, it was connected to the end mount of the optical fiber in order to illuminate the territory, the optical assembly The housing doing the optical assembly, it seems like the surgical operation region, it is the variable angular illuminating for the small-sized surgical operation which in order to direct to the territory, operation is connected by the hand piece and the optical assembly possibly, possesses with the cannula. As for the optical assembly, for example, it was connected to the optical needle optically, the polymer spread liquid crystal ( PDLC ) the diffuser, or, the synthetic quadratic surface condenser which forms nest ( CPC ) it is possible to possess the conical body. In PDLC spread/needle execution feature, as for that fiber, standard, it is possible to be the optical fiber inside the illuminating which has approximately 0.50NA. Light is emitted from the end mount of the cannula, furthermore it is possible to be supplied to the PDLC diffuser because it is transmitted. As for spread of the light ray with the PDLC diffuser, it is possible, to control electrically, it is possible to a state where spread completely spread is very high from a state where it is not to change. The PDLC diffuser after the passing, the light ray seems the glass needle or like the fiber, the light ray is transmitted to the surgical operation region in the eye, it is supplied to the needle or the fiber.可変角度、広角照明装置が開示され、1つの実施態様は、光線を供給する、光源と;光線を受光し伝達するために、光源と光学的に結合する、光ケーブル
