System and method for determining the operational status of an imaging system including an illumination modulator
First Claim
1. A system for determining whether an imaging system is in a proper operating condition, said system comprising:
- an illumination modulator for providing a desired modulated illumination field at an image surface;
a detection unit including a slit opening for receiving a portion of said modulated illumination field;
average power sample means for determining the average power sample value of said modulated illumination field as said modulated illumination field is moved with respect to said slit opening and for determining whether said average power sample value has changed significantly since a previous scan; and
variation power sample means for determining the variation in power sample values of said modulated illumination field as said modulated illumination field is moved with respect to said slit opening and for determining whether said variation in power sample values has changed significantly since a previous scan.
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Accused Products
Abstract
A system is disclosed for determining whether an imaging system is in a proper operating condition. In an embodiment, the system includes an illumination modulator for providing a desired modulated illumination field at an image surface, a detection unit including a slit opening for receiving a portion of the modulated illumination field, an average power sample unit and a variation power sample unit. The average power sample unit is for determining the average power sample value of the modulated illumination field as the modulated illumination field is moved with respect to the slit opening and for determining whether the average power sample value has changed significantly since a previous scan. The variation power sample unit is for determining the variation in power sample values of the modulated illumination field as the modulated illumination field is moved with respect to the slit opening and for determining whether the variation in power sample values has changed significantly since a previous scan.
11 Citations
14 Claims
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1. A system for determining whether an imaging system is in a proper operating condition, said system comprising:
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an illumination modulator for providing a desired modulated illumination field at an image surface;
a detection unit including a slit opening for receiving a portion of said modulated illumination field;
average power sample means for determining the average power sample value of said modulated illumination field as said modulated illumination field is moved with respect to said slit opening and for determining whether said average power sample value has changed significantly since a previous scan; and
variation power sample means for determining the variation in power sample values of said modulated illumination field as said modulated illumination field is moved with respect to said slit opening and for determining whether said variation in power sample values has changed significantly since a previous scan. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for determining whether an imaging system is in a proper operating condition, said system comprising:
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an illumination modulator for providing a desired modulated illumination field at an image surface;
a detection unit including a slit opening for receiving a portion of said modulated illumination field;
average power sample means for determining the average power sample value of a set of scans of said modulated illumination field as said modulated illumination field is moved with respect to said slit opening and for determining whether said average power sample value has changed significantly since a previous set of scans; and
variation power sample means for determining the variation in power sample values of a set of scans of said modulated illumination field as said modulated illumination field is moved with respect to said slit opening and for determining whether said variation in power sample values has changed significantly since a previous set of scans. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification