Image registration system for multiple picture tube projection t

Details Image registration system for multiple picture tube projection t Image registration system for multiple picture tube projection t

1991-03-21

1992-08-11

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

382 44, H04N 931

Patent

active

051384426

ABSTRACT:
A projector including a projector to superpose pictures on a screen, the pictures being displayed on cathode ray tubes corresponding to different colors. Reference signals are inputted to the corresponding cathode ray tubes for a predetermined period of time after application of power so that one of both a picture with a uniform brightness and a picture with a uniform color is formed all over the screen in response to the reference signals. The projector effectively reduces the fluctuation in registration of the displayed pictures.

REFERENCES:
patent: 5020116 (1991-05-01), Macaulay

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