IRRADIANCE MONITORING IN PROJECTOR SYSTEMS
A projector system includes a monitor that measures irradiance of projected light. The monitor direct light from a light source that is sampled in an optical path of the projector onto a sensor. The detector also receives light from a calibration light source. A processor is configured to process an...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
16.10.2024
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Subjects | |
Online Access | Get full text |
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Summary: | A projector system includes a monitor that measures irradiance of projected light. The monitor direct light from a light source that is sampled in an optical path of the projector onto a sensor. The detector also receives light from a calibration light source. A processor is configured to process an output signal of the sensor to determine irradiance of the projected light. The processing may comprise applying a colour transform and lumped coefficients. The projector system may be configured to take corrective action if the monitored irradiance exceeds a threshold. One application of the disclosed apparatus and methods is improving safety. |
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Bibliography: | Application Number: EP20220834857 |