Color balance filter adjusting mechanism

Details Color balance filter adjusting mechanism Color balance filter adjusting mechanism

1995-12-13

1998-02-24

Ramirez, Nestor R.

Electrophotography

Combined with diverse subject matter

With diverse image formation

355 38, 399 39, 399221, G03G 1501

Patent

active

057220018

ABSTRACT:
The improved apparatus for forming a color image by slit scan exposure has means for changing the position of a line sensor assembly relative to the shorter side of the slit light that has passed through a slit and means for constructing color filter tables that represent the relationships between the amounts of insertion of the color filters into the optical path and the quantities of the admitted exposing light on the basis of the measured data on the quantity of the slit light measured by using the line sensor assembly with its position being changed relative to the shorter side of the slit light. Even if the quantity of the slit light is uneven along the shorter side of the slit or even if the width of the slit is variable, the quantity of the exposing light as it is admitted with the color filters inserted into the optical path can be measured correctly and this feature, combined with the ability to absorb any instrumental errors, enables the construction of the appropriate color filter tables which contribute to the formation of high-quality color images in a consistent manner.

REFERENCES:
patent: 3184307 (1965-05-01), Letzer
patent: 4668082 (1987-05-01), Terashita et al.
patent: 5019858 (1991-05-01), Suzuki
patent: 5053808 (1991-10-01), Takagi
patent: 5559585 (1996-09-01), Takagi

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