Method and apparatus for protecting an optical transmission...

Details Method and apparatus for protecting an optical transmission... Method and apparatus for protecting an optical transmission...

2005-09-01

2008-08-26

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Dimension

Thickness

C356S445000, C356S630000, C250S559290, C250S559390

Reexamination Certificate

active

07417749

ABSTRACT:
A method and apparatus for protecting an optical transmission measurement when sensing transparent materials. Sensing apparatus located in a housing directs a light beam at an upward angle to a sheet of transparent material and detects downward surface reflections of the beam from the transparent material. The light beam and the reflections pass through a transparent protective layer on the housing. A flow of clean air is passed between the protective layer and the transparent material to remove particles and liquid from the protective layer and from the space between the protective layer and the transparent material. Preferably, the protective layer is either made from a hydrophobic material or has a hydrophobic surface coating to facilitate blowing liquid and particles from the surface.

REFERENCES:
patent: 1503543 (1924-08-01), Lytle
patent: 1756785 (1930-04-01), Gallasch
patent: 3016464 (1962-01-01), Bailey
patent: 3137756 (1964-06-01), Gunther et al.
patent: 3693025 (1972-09-01), Brunton
patent: 3807870 (1974-04-01), Kalman
patent: 3994586 (1976-11-01), Sharkins et al.
patent: 4207467 (1980-06-01), Doyle
patent: 4284356 (1981-08-01), Heilman
patent: 4848913 (1989-07-01), Greiner
patent: 4899055 (1990-02-01), Adams
patent: 4902902 (1990-02-01), Tole
patent: 4984894 (1991-01-01), Kondo
patent: 5054927 (1991-10-01), Garves
patent: 5132631 (1992-07-01), Klopfenstein et al.
patent: 5237392 (1993-08-01), Hickel et al.
patent: 5239488 (1993-08-01), Markham et al.
patent: 5254149 (1993-10-01), Hashemi et al.
patent: 5442573 (1995-08-01), Bredberg et al.
patent: 5490728 (1996-02-01), Schietinger et al.
patent: 5525138 (1996-06-01), Hashemi et al.
patent: 5564830 (1996-10-01), Bobel et al.
patent: 5568264 (1996-10-01), Nakatsuka et al.
patent: 5581355 (1996-12-01), Myers et al.
patent: 5597237 (1997-01-01), Stein
patent: 5637873 (1997-06-01), Davis et al.
patent: 5657124 (1997-08-01), Zhang et al.
patent: 5726749 (1998-03-01), Schave
patent: 5726756 (1998-03-01), Aki et al.
patent: 5727017 (1998-03-01), Maurer et al.
patent: 5748091 (1998-05-01), Kim
patent: 5838446 (1998-11-01), Meth et al.
patent: 5966214 (1999-10-01), Imbrock et al.
patent: 6683695 (2004-01-01), Simpson et al.
patent: 6916507 (2005-07-01), Matsumura et al.
patent: 6921431 (2005-07-01), Evans et al.
patent: 22584 (1962-01-01), None
patent: 0 480 027 (1992-04-01), None
patent: 2321309 (1998-07-01), None
patent: 53-16652 (1978-02-01), None
patent: 56-44804 (1981-04-01), None
patent: 60-147606 (1985-08-01), None
patent: 1585670 (1990-08-01), None

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