Light diffusing body and a transmission type screen

Details Light diffusing body and a transmission type screen Light diffusing body and a transmission type screen

2007-02-12

2008-01-22

Chen, Vivian (Department: 1773)

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

C428S323000, C359S599000, C359S615000, C349S064000, C349S112000, C349S122000

Reexamination Certificate

active

07320823

ABSTRACT:
A light diffusing body and transmission type screen, which can reduce the shift of the color tone of the light source light seen through the light diffusing body and prevent the phenomenon that the white light source seen through the light diffusing body looks colored, is provide.The light diffusing body1of the present invention comprises a transparent resin and spherical micro-particles having a different refractive index from that of the said transparent resin, wherein the relation between the maximum value (Emax) and the minimum value (Emax) of the effective scattering efficiency values (E) obtained for each center wavelength in the wavelength ranges of blue, green and red by dividing the sum of scattering cross-sections of all spherical micro-particles contained in the unit area of the aforementioned light diffusing body1by the sum of geometrical cross-sections of all these spherical micro-particles satisfies Emin/Emax≧0.90.

REFERENCES:
patent: 6177153 (2001-01-01), Uchiyama et al.
patent: 6348960 (2002-02-01), Etori et al.
patent: 6654085 (2003-11-01), Koike et al.
patent: 6771335 (2004-08-01), Kimura et al.
patent: 6804053 (2004-10-01), Etori et al.
patent: 6846098 (2005-01-01), Bourdelais et al.
patent: 6848795 (2005-02-01), Kaminsky et al.
patent: 6900941 (2005-05-01), Kaminsky et al.
patent: 6963447 (2005-11-01), Honda
patent: 6963451 (2005-11-01), Se et al.
patent: 7045169 (2006-05-01), Freeman et al.
patent: 7187441 (2007-03-01), Sevick-Muraca et al.
patent: 7187834 (2007-03-01), Iwasaki
patent: 7224874 (2007-05-01), Iwasaki et al.
patent: 2001/0005282 (2001-06-01), Etori et al.
patent: 2002/0001055 (2002-01-01), Kimura et al.
patent: 2002/0005924 (2002-01-01), Kimura
patent: 2004/0160673 (2004-08-01), Se et al.
patent: 2004/0203312 (2004-10-01), Bortscheller et al.
patent: 2005/0243561 (2005-11-01), Etori
patent: 2007/0171654 (2007-07-01), Etori
patent: 2007/0182882 (2007-08-01), Etori
patent: 2007/0183050 (2007-08-01), Etori
patent: 01-269901 (1989-10-01), None
patent: 06-155674 (1994-06-01), None
patent: 11-111464 (1999-04-01), None
patent: 2002-258011 (2002-09-01), None
patent: 2004-341446 (2004-02-01), None
patent: 2005-024942 (2005-01-01), None

Affiliated with

Also associated with

Rating

Light diffusing body and a transmission type screen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light diffusing body and a transmission type screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light diffusing body and a transmission type screen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3964293