US 7,517,344 B2
	Device for treating human skin by means of radiation
Robbert Adrianus Maria Van Hal, Eindhoven (Netherlands); Bernardus Leonardus Gerardus Bakker, Eindhoven (Netherlands); and Paul Anton Josef Ackermans, Eindhoven (Netherlands)
Assigned to Koninklijke Philips Electronics N.V., Eindhoven (Netherlands)
Appl. No. 10/536,242 PCT Filed Oct. 31, 2003, PCT No. PCT/IB03/04961 § 371(c)(1), (2), (4) Date May 24, 2005, PCT Pub. No. WO2004/047921, PCT Pub. Date Jun. 10, 2004.
Claims priority of application No. 02079976 (EP), filed on Nov. 28, 2002.
Prior Publication US 2006/0015091 A1, Jan. 19, 2006
Int. Cl. A61B 18/18 (2006.01)

U.S. Cl. 606—9  [606/10; 607/88]

13 Claims

1. A device for treating human skin through the use of radiation, which device comprises a housing with a radiation exit opening, a radiation source accommodated in the housing, and a radiation path between the radiation source and the radiation exit opening, said radiation path comprising a radiation filter having a predetermined transmission spectrum, wherein the radiation filter comprises a reflecting surface via which the radiation propagating along the radiation path is reflected and which has a coating providing the reflecting surface with a reflection spectrum substantially matching the predetermined transmission spectrum, wherein the radiation filter comprises a channel which encloses the radiation path and which comprises an inner wall on which the reflecting surface is provided, and wherein the channel comprises a bend situated between the radiation source and the radiation exit opening.