Patent ID: 11888283
Assignee: JEISYS MEDICAL INC.
Field: Optics (Instruments)
Classification: CPC H  A | IPC A  H

Claim 5:
6. A laser device for skin treatment, comprising:
a laser generating unit generating a pulse having an adjusted pulse width; and
a laser amplifying unit amplifying the pulse supplied from the laser generating unit,
wherein the laser amplifying unit comprises:
a first amplification medium for first amplifying the pulse supplied from the laser generating unit;
a first mirror arranged to reflect the laser pulse first amplified while passing through the first amplification medium and to return the first amplified laser pulse in a direction of the first amplification medium;
a first beam splitter arranged to face the first mirror with the first amplification medium therebetween and to adjust a path of the pulse second amplified while returning to and passing through the first amplification medium;
a first wave plate arranged between the first mirror and the first beam splitter to change a polarization or phase of the passing pulse;
a second mirror transmitting the pulse having the path adjusted by the first beam splitter to a second amplification medium;
the second amplification medium spaced apart from the first amplification medium and for third amplifying the pulse supplied from the second mirror;
a first pumping lamp spaced apart from the first amplification medium and the second amplification medium and illuminating the first amplification medium and the second amplification medium;
a third mirror arranged to reflect the pulse third amplified while passing through the second amplification medium and to return the third amplified pulse in a direction of the second amplification medium;
a second beam splitter arranged to face the third mirror with the second amplification medium therebetween and to adjust a path of the pulse fourth amplified while returning to and passing through the second amplification medium;
a third wave plate arranged between the third mirror and the second beam splitter to change a polarization or phase of the passing pulse; and
a second wave plate in which the pulse reflected from the second mirror is supplied to the second amplification medium through the second beam splitter and which is arranged between the second mirror and the second beam splitter and changing a polarization or phase of the pulse reflected from the second mirror and directed to the second beam splitter, and
wherein the pulse supplied from the laser generating unit transmits the first beam splitter and is directed to the first amplification medium.