Color wheel unit and optical engine having the same
AssigneeSamsung Electronics Co., Ltd.
InventorGyo-Hwan Goo
Life of this patent
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Abstract
The present invention relates to a color wheel unit comprising a color wheel having a rotatable filter supporter and a plurality of color filters radially attached to the filter supporter; a color wheel supporter for rotatably supporting the color wheel; a projection provided in at least one of the color filters; and a projection holder for engagement with the projection and provided in at least one of the color filter adjacent to the color filter having the projection and the filter supporter for preventing the color filter from a radial outward breakaway. Thus, the present invention provides a color wheel unit and an optical engine with the same, in which a color filter is stably mounted.
Claims9
A color wheel unit comprising:
- a color wheel including a rotatable filter supporter, and a plurality of color filters radially attached to the filter supporter;
- a color wheel supporter for rotatably supporting the color wheel;
- a projection provided in at least one of the color filters;
- and
- a projection holder for engaging with the projection and for preventing the color filter from radially breaking away,
- wherein the projection holder is provided in at least one of the color filters adjacent to the color filter having the projection and the filter supporter.
An optical engine for a Digital Light Processing (DLP) apparatus, comprising:
- a light source for emitting light;
- a color wheel unit for selectively filtering light emitted from the light source, wherein the color wheel unit comprises:
- a color wheel including a rotatable filter supporter and a plurality of color filters radially attached to the filter supporter;
- a color wheel supporter rotatably supporting the color wheel;
- a projection provided in at least one of the color filters;
- and
- a projection holder engaged with the projection,
- wherein the projection holder is provided in at least one of the color filters adjacent to the color filter having the projection and the filter supporter for preventing the color filter from radially breaking away;
- a DLP panel for forming an image by adjusting a reflecting angle of the light passed through the color wheel unit;
- and
- a projecting lens for projecting the image formed on the DLP panel to a screen.
A method of manufacturing a color wheel in a Digital Light Processing (DLP) apparatus, the method comprising the steps of:
- providing projections in at least one of color filters;
- and
- providing projection holders for engaging with the projections and for preventing the color filters from radially breaking away,
- wherein the projection holders are provided in at least one of the color filters adjacent to the color filter having the projections and a filter supporter.
Dependencies are inferred from the claim text.