Rod integrator, illuminator, projector, and optical device
First Claim
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1. A rod integrator with a color wheel, comprising:
- the rod integrator including an incident-end opening and an emerging-end opening, the rod integrator further including a reflecting surface, for emitting light that is incident on an incident-end opening from a light source through an emerging-end opening, an end surface of an outer periphery of the emerging-end opening, which is on a plane that is substantially perpendicular to a central axis of the rod integrator and being a scattering surface or a blaze surface that reflects the incident light from the color wheel on the end surface toward the central axis of the rod integrator.
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Abstract
The invention provides a rod integrator or the like having high efficiency for light utilization and suitable for a color-recapture system. The present invention can include a rod integrator having a reflective inner circumference (reflecting surface) for emitting light incident on an incident-end opening from a light source through an emerging-end opening. An end face on the outer periphery of the emerging-end opening can be a scattering surface for reflecting the incident light on the end face toward the optical axis that agrees with the central axis of the rod integrator.
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8 Claims
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1. A rod integrator with a color wheel, comprising:
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the rod integrator including an incident-end opening and an emerging-end opening, the rod integrator further including a reflecting surface, for emitting light that is incident on an incident-end opening from a light source through an emerging-end opening, an end surface of an outer periphery of the emerging-end opening, which is on a plane that is substantially perpendicular to a central axis of the rod integrator and being a scattering surface or a blaze surface that reflects the incident light from the color wheel on the end surface toward the central axis of the rod integrator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification