Optics: measuring and testing – Of light reflection – With diffusion
Patent
1989-08-25
1992-01-07
Willis, Davis L.
Optics: measuring and testing
Of light reflection
With diffusion
356445, G01N 2147
Patent
active
050784978
ABSTRACT:
A densitometer which measures the reduction in the specular component of the reflectivity of a portion of a surface having a liquid deposited thereon. Collimated light rays, in the visible spectrum, are projected onto the portion of the surface having the liquid thereon. The light rays reflected from the portion of the surface having the liquid deposited thereon are collected and directed onto a photodiode array. The photodiode array generates electrical signals proportional to the total flux and the diffuse component of the total flux of the reflected light rays. Circuitry compares the electrical signals and determines the difference therebetween to generate an electrical signal proportional to the specular component of the total flux of the reflected light rays.
REFERENCES:
patent: 2315282 (1943-03-01), Snow
patent: 3994723 (1976-11-01), Brooke
patent: 4226541 (1980-10-01), Tisue
patent: 4553033 (1985-11-01), Hubber, III et al.
patent: 4565450 (1986-01-01), Wirz et al.
patent: 4582774 (1986-04-01), Landa
patent: 4677298 (1987-06-01), Zelmanovic et al.
patent: 4737035 (1988-04-01), Aoki et al.
patent: 4787238 (1988-11-01), Seki et al.
patent: 4796065 (1989-01-01), Kanbayashi
patent: 4799082 (1989-01-01), Suzuki
patent: 4806002 (1989-02-01), Simeth et al.
patent: 4989985 (1991-02-01), Hubble, III et al.
Borton Michael D.
Hubble, III Fred F.
Martin James P.
Mattioli Theresa K.
Shoemaker Ralph A.
Beck J. E.
Fleischer H.
Pham Hoa
Willis Davis L.
Xerox Corporation
LandOfFree
Densitometer for a liquid developer material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Densitometer for a liquid developer material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Densitometer for a liquid developer material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-817401