Initial display substrate, initial display panel, display panel and inspection method thereof
US-12131495-B2 · Oct 29, 2024 · US
Lens-less optical position measuring sensor
US9702690B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9702690-B2 |
| Application number | US-201113329510-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2011 |
| Priority date | Dec 19, 2011 |
| Publication date | Jul 11, 2017 |
| Grant date | Jul 11, 2017 |
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Abstract
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An optical detector may include an aperture, at least two photodetectors, and a measuring arrangement to quantify light detected at the photodetectors after passing through the aperture without the need for a lens. The aperture may be positioned between a light source and the two photodetectors to allow light from a light source to pass through the aperture to the photodetectors. The photodetectors may include PIN junction photodiodes and may be electrically isolated from each other, positioned next to each other in a side-by-side configuration, and then aligned with the aperture so that a proportion of the quantified light detected at the photodetectors changes as an angle of light from the light source incident to the aperture changes. Optical detectors and methods are provided.
First claim
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I claim: 1. An integrated circuit for detecting an angle of incident light, comprising: a surface having apertures; a plurality of photodetectors arranged in at least three pairs of photodetectors and separated from each other by trenches, each of the pairs of the photodetectors is aligned underneath a respective one of the apertures; and an optically transparent solid medium disposed between the surface and the plurality of photodetectors, wherein at least two pairs of the…
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- What does patent US9702690B2 cover?
- An optical detector may include an aperture, at least two photodetectors, and a measuring arrangement to quantify light detected at the photodetectors after passing through the aperture without the need for a lens. The aperture may be positioned between a light source and the two photodetectors to allow light from a light source to pass through the aperture to the photodetectors. The photodetec…
- Who is the assignee on this patent?
- Deliwala Shrenik, Analog Devices Inc
- What technology area does this patent fall under?
- Primary CPC classification G01B11/26. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jul 11 2017 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).