Dynamic aperture device and projector with the same

Details Dynamic aperture device and projector with the same Dynamic aperture device and projector with the same

2011-02-15

2011-02-15

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Light control by opaque element or medium movable in or...

With rotating or pivoting element

Reexamination Certificate

active

07889410

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.

REFERENCES:
patent: 6280059 (2001-08-01), Ito et al.
patent: 7373898 (2008-05-01), Tenka

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