Facebook Technologies, LLC (Menlo Park, CA)
The disclosure is generally related to near-eye-display systems and more specifically to tiled waveguide displays.
Near-eye light fields project images directly into the user’s eye. This is the case for both electronic viewfinders and near-eye displays (NEDs). Conventional near-eye displays (NEDs) typically have a display element that generates image lightthat passes through one or more lenses before reaching the user’s eyes. NEDs utilized in virtual reality or AR systems must be small and lightweight and feature a large exit-pupil and a broad field of view to make it easy to use. A conventional NED could have lenses that are large and be heavy.
The use of waveguide displays is to show information to users. Waveguide displays include a first light source that produces the first image light which corresponds to a specific portion of an image. It also has a secondary light source that emits second light sources that correspond to a portion of an image that is not the first. A source waveguide comprises an initial entrance area, second exit area, and the second exit area and an output waveguide with a third entrance area and the third exit zone. The controller generates scan instructions for the source.
The source waveguide is in-coupled with the first picture light at the first entry area. It then expands the initial light by at most one dimension before releasing it through the first exit. The source waveguide is in-coupled with the second lamp in the second entry point, and expands the second light in a different direction, and then outputs the expanded light via the second exit. The output waveguide couples the first image light and the second image lightat the third entrance, and expands the expanded first image light and expanded second image light in at least one dimension that is opposite to the first to produce an area of magnified image, and then outputs the portion of the magnified image via the third exit area to an eyebox. In certain configurations, the expanded first image light travels along a first direction and the second image light is expanded and propagates along a second direction opposite to the first direction.
In certain instances, the source waveguide receives the first image light at one region, and the second light at a second region that is the first region, and the second region located on the edge of the source waveguide. The first entrance may contain an initial coupling region as well as the second entry zone could contain a second coupling area. Each of the first coupling elements and the second coupling elements comprise grating elements having a certain grating period.Click here to view the patent on USPTO website.
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Granted by the government to protect an invention patents grant the inventor with the exclusive right to use, create, sell and promote the invention?society is benefited when a brand new technology is introduced to the market. The benefits can be in direct terms, as it allows people to do previously impossible things. Or indirectly, due to the opportunities for economic growth (business expansion and employment) that innovation provides.
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Patent searches are the first step to getting your patent. You can do a google patent search or do a USPTO search. Once the patent application has been filed, the product that is covered by the patent application could be called patent-pending, and you can locate the patent application on a public pair. After the patent office has approved the patent application, you can do a patent number search to locate the patent issued, and your product is now patented. You can also utilize the USPTO search engine. Read on for more details. Patent lawyers or a patent attorney can help you through the process. In the US, patents are granted by the US trademark and patent office or the United States patent and trademark office, which also reviews trademark applications.
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- What are the terms in the technical field and keywords that describe the nature of an invention? To assist you in finding the appropriate terms, use a technical dictionary.
2. These terms will let you search for relevant Cooperative Patent Classifications on the Classification Search Tool. If you’re not able to locate the appropriate classification for your invention, look through the classification’s class Schemas (class schedules). If you do not get results from the Classification Text Search, you might want to think about substituting the words that describe your invention using synonyms.
3. Examine 3. Go over the CPC Classification Definition for the CPC Classification Definition to determine the relevancy of the CPC classification you’ve located. The link to a CPC classification definition will be given in the event that the title of the chosen classification is a blue square with a “D” on its left. CPC classification definitions can aid you in determining the classification’s scope of application so that you can choose the most relevant. Additionally the definitions may include search tips and other suggestions that could be helpful in further study.
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5. Utilize this selection of most relevant patent publications to look at each in detail for the similarities to your invention. Pay attention to the claims and specification. You may find additional patents by consulting the patent examiner and the applicant.
6. You can find published patent applications that fit the CPC classification you chose in Step 3. You can apply the same search strategy in Step 4 to narrow your results down to the relevant patent application through the abstract as well as the illustrations on every page. Next, examine all published patent applications carefully with particular attention paid to the claims and other drawings.
7. Locate additional US patent publications using keyword search in AppFT or PatFT databases, classification searching of non-U.S. patents per below, and searching for non-patent literature disclosures of inventions using internet search engines. Here are a few examples:
- Add keywords to your search. Keyword searches may turn up documents that are not well-categorized or have missed classifications during Step 2. For example, US patent examiners often supplement their classification searches with keyword searches. Think about the use of technical engineering terminology rather than everyday words.
- Search for foreign patents using the CPC classification. Then, re-run the search using international patent office search engines such as Espacenet, the European Patent Office’s worldwide patent publication database of over 130 million patent publications. Other national databases include:
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- Japan Patent Office (JPO) – with access to machine translations of Japanese patents.
- World Intellectual Property Organization (WIPO) offers PATENTSCOPE with a full-text search of published international patent applications and machine translations for some documents, as well as a list of international patent databases.
- Korean Intellectual Property Rights Information Service (KIPRIS)
- State Intellectual Property Office (SIPO) with machine translation of Chinese patents.
- Other International Intellectual Property Offices with online patent databases include Australia, Canada, Denmark, Finland, France, Germany, Great Britain, India, Israel, Netherlands, Norway, Sweden, Switzerland, and Taiwan.
- Search non-patent literature. Inventions can be made public in many non-patent publications. It is recommended that you search journals, books, websites, technical catalogs, conference proceedings, and other print and electronic publications.
To review your search, you can hire a registered patent attorney to assist. A preliminary search will help one better prepare to talk about their invention and other related inventions with a professional patent attorney. In addition, the attorney will not spend too much time or money on patenting basics.