Illumination system, projection device and illumination method
US-9046745-B2 · Jun 2, 2015 · US
Light source device for emitting white light and projection display device using the same
US9500937B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9500937-B2 |
| Application number | US-201414220011-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 19, 2014 |
| Priority date | Mar 27, 2013 |
| Publication date | Nov 22, 2016 |
| Grant date | Nov 22, 2016 |
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Abstract
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A light source device includes a light source, a first dichroic mirror, and a light emitting member. The light source is configured to emit blue light substantially polarized in a first direction. The first dichroic mirror is configured to reflect not less than 80% and not more than 90% of the blue light polarized in the first direction, and to transmit more than 10% and less than 20% of the blue light polarized in the first direction, in a wavelength band of blue light. The light emitting member is configured to emit light upon being excited by the blue light reflected by the first dichroic mirror.
First claim
Opening claim text (preview).
What is claimed is: 1. A light source device comprising: a light source for emitting blue light substantially polarized in a first direction; a first dichroic mirror for reflecting not less than 80% and not more than 90% of the blue light polarized in the first direction, and for transmitting more than 10% and less than 20% of the blue light, at a wavelength of the blue light; and a light emitting member for emitting light upon being excited by the blue light reflected by the…
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Physics · mapped topic
Physics · mapped topic
- G03B21/204Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US9500937B2 cover?
- A light source device includes a light source, a first dichroic mirror, and a light emitting member. The light source is configured to emit blue light substantially polarized in a first direction. The first dichroic mirror is configured to reflect not less than 80% and not more than 90% of the blue light polarized in the first direction, and to transmit more than 10% and less than 20% of the bl…
- Who is the assignee on this patent?
- Panasonic Corp, Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G03B21/204. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 22 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).