Methods for forming recesses in source/drain regions and devices formed thereof
US-12132089-B2 · Oct 29, 2024 · US
Photovoltaic equipment
US9343605B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9343605-B2 |
| Application number | US-201113882046-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 21, 2011 |
| Priority date | Oct 27, 2010 |
| Publication date | May 17, 2016 |
| Grant date | May 17, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A photovoltaic unit can minimally reduce a displacement of focus positions from solar cells and prevent a decrease in power generation efficiency even if elastic behaviors of a Fresnel lens sheet and a base plate on which solar cells are arranged due to changes in temperature and humidity are different. The photovoltaic unit includes an integrated multiple Fresnel lens sheet and a base plate on which solar cells are arranged adjacent to the focus positions of individual Fresnel lenses. The multiple Fresnel lens sheet is fixed to the base plate by a lens sheet fixing element at a lens sheet fixing portion adjacent to the center of gravity of the sheet.
First claim
Opening claim text (preview).
The invention claimed is: 1. A photovoltaic unit comprising: an integrated multiple Fresnel lens sheet comprising a sheet integrally provided with multiple Fresnel lenses; and a base plate on which solar cells are arranged adjacent to a focus position of each said Fresnel lens, wherein the multiple Fresnel lens sheet is fixed to the base plate at a lens sheet fixing portion adjacent to a center of gravity of the sheet, such that the multiple Fresnel lens sheet is fixed in position relative to the base plate at the fixing portion upon thermal expansion of the multiple Fresnel lens sheet, and the multiple Fresnel lens sheet is able to shift relative to the base plate at all positions other than the fixing portion upon thermal expansion of the multiple Fresnel lens sheet, wherein the multiple Fresnel lens sheet has a second fixing portion in addition to the lens sheet fixing portion; and the multiple Fresnel lens sheet is movable at the second fixing portion only in a direction of a line connecting the lens sheet fixing portion and the second fixing portion. 2. The photovoltaic unit according to claim 1 , wherein the multiple Fresnel lens sheet is fixed to the base plate at the lens sheet fixing portion adjacent to the center of gravity of the sheet and at a boundary of individual Fresnel lenses. 3. The photovoltaic unit according to claim 1 , wherein the second fixing portion is in the vicinity of an end of the entire multiple Fresnel lens sheet. 4. The photovoltaic unit according to claim 2 , wherein the multiple Fresnel lens sheet is movable at the second fixing portion only in a direction connecting the lens sheet fixing portion and the second fixing portion. 5. The photovoltaic unit according to claim 4 , wherein the second fixing portion is in the vicinity of an end of the entire multiple Fresnel lens sheet.
Assignees
Inventors
Classifications
- H10P50/642Primary
Chemical etching · CPC title
- H10F77/484Primary
Refractive light-concentrating means, e.g. lenses · CPC title
- H10F77/63Primary
Arrangements for cooling directly associated or integrated with photovoltaic cells, e.g. heat sinks directly associated with the photovoltaic cells or integrated Peltier elements for active cooling · CPC title
Electricity · mapped topic
Frame structures · CPC title
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Frequently asked questions
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- What does patent US9343605B2 cover?
- A photovoltaic unit can minimally reduce a displacement of focus positions from solar cells and prevent a decrease in power generation efficiency even if elastic behaviors of a Fresnel lens sheet and a base plate on which solar cells are arranged due to changes in temperature and humidity are different. The photovoltaic unit includes an integrated multiple Fresnel lens sheet and a base plate on…
- Who is the assignee on this patent?
- Toyohara Makoto, Ono Youji, Kuraray Co
- What technology area does this patent fall under?
- Primary CPC classification H10P50/642. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 17 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).