/Patent Tracker
SamsungGranted patentChips & hardwareInterest 3/10

Samsung patents ring-shaped light guide for air quality sensors

Samsung has been granted a patent for an air quality measuring device that uses a circular light guide to direct light from a source to the outside. The design features a top and bottom case with a light guide sandwiched between them, using specific ribs and bosses to hold the parts together. This structure allows light to exit through a specific surface on the outer edge of the device.

Why it mattersThis filing details the physical housing and light management components for environmental sensors, which are common in smart home devices and wearables.

In the filing’s own words

An air quality measuring device, according to one embodiment of the present disclosure, includes a top case, a bottom case provided below the top case, a circular light guide unit which is disposed between the top case and the bottom case. The air quality measuring device has an outer portion and an inner portion, and includes a coupling boss positioned around the outer portion so as to be coupled to the top case or the bottom case. The air quality measuring device also includes a light source unit positioned on the inner portion, where the light guide unit has a light exit surface formed on the outer portion and may include a rib which is positioned around the outer portion and protrudes from one surface thereof.

What exactly they claim (claim 1)

1. An air quality measuring device, comprising: an upper case; a lower case disposed under the upper case; a circular light guide disposed between the upper case and the lower case, having an outer portion and an inner portion, and comprising a coupling boss positioned around the outer portion and protrudes downward to couple with the lower case and a coupling hole provided to couple with the upper case; and a light source unit positioned on the inner portion, wherein the circular light guide forms a light exiting surface on the outer portion, and includes a rib formed to protrude to one surface surrounded by the outer portion.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
Air quality measuring device
Patent number
US12742727B2
Application number
18664157
Filed
May 14, 2024
Granted
Sep 22, 2026
Inventors
6
Claims
16

Classified under

G01N 21/29 Physics & computingG01N 33/0047 Physics & computingG01N 2021/216 Physics & computingG01N 2021/8578 Physics & computingG01N 2201/0221 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

More from Samsung in Chips & hardware

Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.