Retrographic sensors with fluorescent illumination
US-2024060837-A1 · Feb 22, 2024 · US
Optical proximity switch
US8969786B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8969786-B2 |
| Application number | US-201213555471-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 23, 2012 |
| Priority date | Jul 23, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An optical proximity switch includes an optical transmitter for emitting a light signal, a transmitting lens with total internal reflection-using the light signal to form and transmit a light beam , a receiver, an imaging receiving lens for receiving and transmitting to the receiver the light signal, and an electronic circuit for evaluating the light signal received by the receiver.
First claim
Opening claim text (preview).
The invention claimed is: 1. An optical proximity switch comprising: an optical transmitter for emitting a light signal; a transmitting lens including a region of total internal reflection using the light signal to form and transmit a light beam; a receiver; an imaging receiving lens for receiving and transmitting to the receiver the light signal; an electronic circuit for evaluating the light signal received by the receiver; and wherein the transmitting lens is located…
Assignees
Inventors
Classifications
- H03K17/941Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8969786B2 cover?
- An optical proximity switch includes an optical transmitter for emitting a light signal, a transmitting lens with total internal reflection-using the light signal to form and transmit a light beam , a receiver, an imaging receiving lens for receiving and transmitting to the receiver the light signal, and an electronic circuit for evaluating the light signal received by the receiver.
- Who is the assignee on this patent?
- Harper John, Vinshtok Yevgeniy, Leedy Justin, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H03K17/941. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 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).