Light emitting wheel with eccentricity for dispelling a thermal boundary layer

Patent metadata

Field	Value
Publication number	US-10247937-B2
Application number	US-201715409230-A
Country	US
Kind code	B2
Filing date	Jan 18, 2017
Priority date	Jan 31, 2014
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

A light emitting wheel with eccentricity for dispelling a thermal boundary layer a light emitting material is provided, including a device comprising: a light emitting material; a cooling plate configured to cool the light emitting material, the cooling plate comprising a center-of-mass that is different from a center-of-rotation of the cooling plate; and, a hub located at the center-of-rotation of the cooling plate.

First claim

What is claimed is:

1. A system comprising:
a device comprising: a light emitting material; a cooling plate configured to cool the light emitting material; and, a hub located at the center-of-rotation of the cooling plate;
a shaft configured to mate with the hub; and,
a motor configured to rotate the shaft so that the hub and cooling plate rotate in response to rotation of the shaft,
wherein one or more of the shaft or the rotational portion of the motor comprise one or more of a bend and a kink to shift the center-of-mass off the respective rotational axis to introduce one or more of vibration and oscillation when rotated, which in turn causes the device to one or more of vibrate and oscillate to produce surface turbulence at one or more of the cooling plate and the light emitting material to dispel one or more thermal boundary layers when rotated.

2. The system of claim 1 , wherein the center-of-mass is different from a geometric center of one or more of the shaft and the rotational portion of the motor to further shift the center-of-mass off the respective rotational axis to introduce further vibration or oscillation when rotated.

3. The system of claim 1 , further comprising base for mounting the motor, the base configured to isolate the motor from a surface supporting the system.

4. The system of claim 3 , wherein the base comprises springs to isolate the motor from the surface.

5. The system of claim 1 , wherein the device vibrating or oscillating comprises an irregular wobble in the device when rotated.

Assignees

• Christie Digital Systems Usa

Inventors

• Adema Daniel Robert
• Hill Graham
• Pastrik Darren

Classifications

• G03B21/204

  using secondary light emission, e.g. luminescence or fluorescence (using different colours G03B33/00; if related to video signals H04N9/3197) · CPC title

• G02B7/008

  with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation · CPC title

• F21V29/502

  characterised by the adaptation for cooling of specific components · CPC title

• G02B26/008 Primary

  in the form of devices for effecting sequential colour changes, e.g. colour wheels · CPC title

• F21V13/08

  the elements being filters or photoluminescent elements and reflectors · CPC title