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US 7,889,410 B2Granted
Dynamic aperture device and projector with the same
AssigneeDelta Electronics, Inc.
InventorsLi-Chun Liao, Chun-Wei Liang, Ching-Hsiang Yu
Life of this patent
Estimating the term…
Abstract
A dynamic aperture device includes a motor, a light shielding element and a balancer. The motor has a shaft. The light shielding element has a light shielding portion and a hub connected to the light shielding portion. The hub is coupled to the shaft. The balancer is disposed on the light shielding element, the hub or the shaft.
Claims21
A dynamic aperture device comprising:
- a motor comprising a shaft;
- and
- a light shielding element comprising a light shielding portion and a hub connected with the light shielding portion, wherein the motor drives the light shielding element to rotate, the hub is coupled to the shaft, and the light shielding portion has an aperture for allowing a light beam to pass through and a reflective material on a surface thereof for reflecting light.
A dynamic aperture device comprising:
- a motor comprising a shaft;
- a light shielding element comprising a light shielding portion and a hub connected with the light shielding portion, wherein the motor drives the light shielding element to rotate, the hub is coupled to the shaft, and the light shielding portion has an aperture for allowing a light beam to pass through;
- and
- a balancer disposed on the light shielding element or the shaft.
1 more element
A dynamic aperture device comprising:
- a motor comprising a shaft;
- a light shielding element comprising a light shielding portion and a hub connected with the light shielding portion, wherein the motor drives the light shielding element to rotate, the hub is coupled to the shaft, the light shielding portion has an aperture for allowing a light beam to pass through, and the hub comprises a thermal-isolating material formed in the hub or on a surface thereof and comprising a plastic material or a ceramic material.
Dependencies are inferred from the claim text.