Optical: systems and elements – Protection from moisture or foreign particle
Reexamination Certificate
2005-08-23
2005-08-23
Robinson, Mark A. (Department: 2872)
Optical: systems and elements
Protection from moisture or foreign particle
C523S169000
Reexamination Certificate
active
06932482
ABSTRACT:
In a fog prevention and antireflection optical element including a first water absorption layer containing a water-absorbing polymer as its main component, a high refractive layer, and a second water absorption layer which are formed on a base in this order, an inorganic material (nd>1.70) is mixed in the water-absorbing polymer of the first water absorption layer, whereby the difference in refractive index with respect to the optical element is decreased.
REFERENCES:
patent: 4409285 (1983-10-01), Swerdlow
patent: 5134021 (1992-07-01), Hosono et al.
patent: 5976680 (1999-11-01), Ikemori et al.
patent: 6055376 (2000-04-01), Ohtaka et al.
patent: 6287683 (2001-09-01), Itoh et al.
patent: 6352758 (2002-03-01), Huang et al.
patent: 6394613 (2002-05-01), Hatakeyama et al.
patent: 6420020 (2002-07-01), Yamazaki et al.
patent: 2003/0030907 (2003-02-01), Ukuda
patent: 11-109105 (1999-04-01), None
patent: 2001074902 (2001-03-01), None
Heavens, O.S., Ph.D, “Optical Properties of Thin Solid Films” (New York, Dover Publications, 1991), p. 217.
Amari Alessandro
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Robinson Mark A.
LandOfFree
Fog prevention and antireflection optical element and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fog prevention and antireflection optical element and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fog prevention and antireflection optical element and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3461653