Optical: systems and elements – Single channel simultaneously to or from plural channels
Reexamination Certificate
2007-03-06
2007-03-06
Harrington, Alicia M (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
C359S636000
Reexamination Certificate
active
10776562
ABSTRACT:
A system and method for reducing peak power of a laser pulse and reducing speckle contrast of a single pulse comprises a plurality of elements oriented to split and delay a pulse or pulses transmitted from a light emitting device. The design provides the ability to divide the pulse into multiple pulses by delaying the components relative to one another. Reduction of speckle contrast entails using the same or similar components to the power reduction design, reoriented to orient received energy wherein angles between the optical paths are altered such that the split or divided light energy components strike the target at different angles or different positions. An alternate embodiment for reducing speckle contrast is disclosed wherein a single pulse is passed in an angular orientation through a grating to create a delayed portion of the pulse relative to the leading edge of the pulse.
REFERENCES:
patent: 4155630 (1979-05-01), Ih
patent: 4511220 (1985-04-01), Scully
patent: 4647158 (1987-03-01), Yeadon
patent: 5162939 (1992-11-01), Herron et al.
patent: 5233460 (1993-08-01), Partlo et al.
patent: 5264912 (1993-11-01), Vaught et al.
patent: 5274494 (1993-12-01), Rafanelli et al.
patent: 5309456 (1994-05-01), Horton
patent: 5337170 (1994-08-01), Khoury et al.
patent: 5434662 (1995-07-01), Rockwell et al.
patent: 5621529 (1997-04-01), Gordon et al.
patent: 5729374 (1998-03-01), Tiszauer et al.
patent: 5808797 (1998-09-01), Bloom et al.
patent: 5849468 (1998-12-01), Sawyer
patent: 5851740 (1998-12-01), Sawyer
patent: 5990983 (1999-11-01), Hargis et al.
patent: 6191887 (2001-02-01), Michaloski et al.
patent: 6275514 (2001-08-01), Katzir et al.
patent: 6370178 (2002-04-01), Papayoanou et al.
patent: 2004/0095573 (2004-05-01), Tsai et al.
Armstrong J. Joseph
Chuang Yung-Ho
Harrington Alicia M
KLA-Tencor Technologies Corporation
Smyrski Law Group, A P.C.
LandOfFree
Peak power and speckle contrast reduction for a single layer... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Peak power and speckle contrast reduction for a single layer..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Peak power and speckle contrast reduction for a single layer... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3794510