Housing, phosphor wheel device, and projection apparatus

Patent metadata

Field	Value
Publication number	US-2016349605-A1
Application number	US-201615231333-A
Country	US
Kind code	A1
Filing date	Aug 8, 2016
Priority date	Mar 19, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A housing stores a heat generator that rotates around a rotation axis. The housing includes a corrugated structure provided on a left wall and a right wall, which are parallel to the rotation axis, the corrugated structure being formed by distorting the left wall and the right wall.

First claim

What is claimed is:

1 . A housing that stores a heat generator rotating around a rotation axis, the housing comprising
a corrugated structure, provide on a wall parallel to the rotation axis, formed by distorting the wall, wherein the corrugated structure is provided in a region of the wall where an angle made by a line, which is formed by extending a tangent line touching a circumference of the rotating body toward the wall, and a reference plane of the wall becomes equal to or larger than a predetermined angle.

2 . The housing according to claim 1 , wherein a corrugated shape of the corrugated structure is sinusoidal.

3 . The housing according to claim 1 , wherein a corrugated shape of the corrugated structure is rectangular.

4 . The housing according to claim 1 , wherein a corrugated shape of the corrugated structure is trapezoidal.

5 . The housing according to claim 1 , wherein the heat generator is a phosphor wheel that converts received light into light having another wavelength and outputs the resultant light.

6 . A phosphor wheel device comprising: a housing and a phosphor wheel,
wherein the housing stores a heat generator that rotates around a rotation axis and includes a corrugated structure, provided on a wall parallel to the rotation axis, formed by distorting the wall, and the heat generator is the phosphor wheel that converts received light into light having another wavelength and outputs the resultant light.

7 . A projection apparatus that outputs, through a phosphor wheel device, light output from a light source,
wherein the phosphor wheel device includes a housing and a phosphor wheel, the housing stores a heat generator that rotates around a rotation axis and includes a corrugated structure, provided on a wall parallel to the rotation axis, formed by distorting the wall, and the heat generator is the phosphor wheel that converts received light into light having another wavelength and outputs the resultant light.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Kitade Naoya

Classifications

• H04N9/3144

  Cooling systems (cooling of liquid crystal cells in general G02F1/133382; cooling of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/16) · CPC title

• G02B26/008

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

• 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

• G03B21/16 Primary

  Cooling; Preventing overheating · CPC title

• H04N9/3111

  for displaying the colours sequentially, e.g. by using sequentially activated light sources (sequential projection in colour photography G03B33/08) · CPC title