Apparatus for irradiating an area with a controllable pattern of

Details Apparatus for irradiating an area with a controllable pattern of Apparatus for irradiating an area with a controllable pattern of

1994-02-18

1996-05-07

Pellegrino, Stephen C.

Surgery

Instruments

Light application

606 16, 606 14, A61B 600

Patent

active

055141277

ABSTRACT:
Apparatus for irradiating an area with a controllable pattern of light comprises a laser (2), which illuminates a spatial light modulator (6). The resulting spatially modulated light then passes to a cholesteric liquid crystal polymer beam-splitter (10) which reflects it to an image surface (13) of an endoscope (12). The endoscope relays it to another image surface (40) whence it is focussed on the area to be irradiated. This light may be used for photodynamic therapy.

REFERENCES:
patent: 4443075 (1984-04-01), Crane
patent: 4612938 (1986-09-01), Dietrich et al.
patent: 4917486 (1990-04-01), Raven et al.
patent: 4987410 (1991-01-01), Berman et al.
patent: 5054888 (1991-10-01), Jacobs et al.
patent: 5325218 (1994-06-01), Willett et al.
patent: 5350374 (1994-09-01), Smith
patent: 5377036 (1994-12-01), Appel et al.

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