G01J 1/28
Using variation of intensity or distance of source
Official title: using variation of intensity or distance of source (G01J1/34 takes precedence)
G01J1/28 (Using variation of intensity or distance of source) appears on 477 US grants and 514 published applications in this corpus.
Search patents in G01J- Granted patents
- 477
- Published applications
- 514
- Assignees
- 348
- Inventors
- 1,007
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 9 |
| 2003 | 11 | 15 |
| 2004 | 14 | 17 |
| 2005 | 8 | 21 |
| 2006 | 17 | 36 |
| 2007 | 15 | 22 |
| 2008 | 26 | 41 |
| 2009 | 27 | 38 |
| 2010 | 23 | 34 |
| 2011 | 18 | 31 |
| 2012 | 26 | 16 |
| 2013 | 25 | 18 |
| 2014 | 22 | 12 |
| 2015 | 16 | 25 |
| 2016 | 21 | 15 |
| 2017 | 19 | 29 |
| 2018 | 17 | 23 |
| 2019 | 23 | 22 |
| 2020 | 25 | 22 |
| 2021 | 19 | 16 |
| 2022 | 18 | 17 |
| 2023 | 14 | 14 |
| 2024 | 12 | 7 |
| 2025 | 11 | 6 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Illumination device and method for calibrating an illumination device over changes in temperature, drive current, and time6 Oct 2026US 12,757,304 B2Lutron Technology Company LLC
- Light detection element having first and second ferromagnetic layers sandwiching spacer layer and receiving device12 May 2026US 12,628,569 B2TDK Corporation
- Method and apparatus for a horticultural light fixture6 Jan 2026US 12,520,399 B2Scynce LED LLC
- Measuring content brightness in head worn computing21 Oct 2025US 12,449,662 B2Mentor Acquisition One, LLC
- Electronic device and method for dynamically adjusting exposure parameter of spectral sensor12 Aug 2025US 12,389,127 B2Honor Device Co., Ltd.
- Method and apparatus for an adaptable vehicle light fixture8 Oct 2026US 2026/0313768 A1Nacho LED LLC
- Adjustment method, adjustment system and laser beam unit30 Jul 2026US 2026/0219104 A1TRUMPF Lasersystems for Semiconductor Manufacturing GmbH
- System for real-time measurement of photochemical production systems23 Jul 2026US 2026/0210842 A1Colorado State University Research Foundation
- Method and calibration device for calibrating a detector device under test11 Jun 2026US 2026/0160594 A1Airbus Defence and Space GmbH
- Display Substrate and Manufacturing Method Thereof, Display Panel, Display Apparatus, and Detection Method23 Apr 2026US 2026/0114045 A1Beijing Boe Display Technology Co., Ltd.
Most cited
By later US patents
- LED luminaire with electrically adjusted color balance using photodetector435US 6,495,964 B1Koninklijke Philips Electronics N. V. · 2002
- Wireless battery-powered daylight sensor327US 8,451,116 B2Lutron Electronics Co., Inc. · 2013
- Method of calibrating a daylight sensor318US 8,410,706 B2Lutron Electronics Co., Inc. · 2013
- Imaging system for vehicle headlamp control246US 6,130,421 AGentex Corporation · 2000
- Multiple sensor lux reader and averager207US 6,307,331 B1Leviton Manufacturing Co., Inc. · 2001