Color television camera with test pattern
First Claim
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1. A television camera having a test pattern projector, comprising:
- an objective lens;
a color resolving optical system disposed on the optic axis of said objective lens;
an image pickup device for photographing a monochromatic image formed by said objective lens and said color resolving optical system;
a test pattern chart projecting device including a test pattern chart for forming a monochromatic test pattern image on said image pickup device; and
a variable color temperature illuminating device for illuminating said test pattern chart, said illuminating device comprising at least two light sources having different wavelength widths, a plurality of circuits having different set values for setting the quantity of light of said light sources, and a switching circuit for selectively applying the signal from said setting circuit to said light sources.
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Abstract
This specification discloses a color television camera having a test pattern projecting device. This test pattern projecting device projects a test pattern image of a desired color temperature onto an image pickup device. The color temperature of the test pattern image is adjustable.
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2 Claims
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1. A television camera having a test pattern projector, comprising:
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an objective lens; a color resolving optical system disposed on the optic axis of said objective lens; an image pickup device for photographing a monochromatic image formed by said objective lens and said color resolving optical system; a test pattern chart projecting device including a test pattern chart for forming a monochromatic test pattern image on said image pickup device; and a variable color temperature illuminating device for illuminating said test pattern chart, said illuminating device comprising at least two light sources having different wavelength widths, a plurality of circuits having different set values for setting the quantity of light of said light sources, and a switching circuit for selectively applying the signal from said setting circuit to said light sources. - View Dependent Claims (2)
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Specification