Optical module

An optical module includes a light source, a phosphor wheel, a first driving unit, a color wheel, a second driving unit, a third driving unit and a control unit. The phosphor wheel includes a phosphor area. The color wheel includes a plurality of sector-shaped filters. At least one of the sector-sha...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Lin, Wen-Yao, Hsiao, Chi-Hung
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:An optical module includes a light source, a phosphor wheel, a first driving unit, a color wheel, a second driving unit, a third driving unit and a control unit. The phosphor wheel includes a phosphor area. The color wheel includes a plurality of sector-shaped filters. At least one of the sector-shaped filters includes a plurality of filter areas. Central angles of the filter areas are identical. Colors of at least two adjacent filter areas are different. The control unit selectively controls one of the first driving unit and the second driving unit by a delay time to control an overlap ratio between the phosphor area and one of the filter areas. The control unit selectively controls the third driving unit to drive the color wheel to move with respect to the phosphor wheel, so as to move one of the filter areas to a position corresponding to the phosphor area.