G02B 27/40
Optical focusing aids
G02B27/40 (Optical focusing aids) appears on 258 US grants and 201 published applications in this corpus.
Search patents in G02B- Granted patents
- 258
- Published applications
- 201
- Assignees
- 174
- Inventors
- 522
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 4 |
| 2003 | 8 | 5 |
| 2004 | 7 | 3 |
| 2005 | 2 | 6 |
| 2006 | 4 | 8 |
| 2007 | 5 | 12 |
| 2008 | 7 | 6 |
| 2009 | 10 | 11 |
| 2010 | 10 | 14 |
| 2011 | 4 | 12 |
| 2012 | 5 | 4 |
| 2013 | 5 | 7 |
| 2014 | 11 | 9 |
| 2015 | 9 | 5 |
| 2016 | 10 | 18 |
| 2017 | 12 | 13 |
| 2018 | 6 | 10 |
| 2019 | 13 | 14 |
| 2020 | 14 | 6 |
| 2021 | 5 | 6 |
| 2022 | 6 | 5 |
| 2023 | 6 | 4 |
| 2024 | 6 | 8 |
| 2025 | 5 | 7 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lighting assembly and method for providing measuring light and optical measuring device23 Jun 2026US 12,663,367 B2LMI Technologies Inc.
- Variable pixel density display system with mechanically-actuated image projector23 Jun 2026US 12,663,651 B2Magic Leap, Inc.
- Artificially-structured materials with smart elements9 Jun 2026US 12,650,556 B2MetaVC Patent Holding Company
- Virtual and augmented reality display systems with emissive micro-displays28 Apr 2026US 12,613,420 B2Magic Leap, Inc.
- Auto-focus for spectrometers14 Apr 2026US 12,601,632 B2Thermo Electron Scientific Instruments LLC
- Optical waveguide structure and near-eye display device4 Jun 2026US 2026/0153741 A1General Interface Solution Limited
- Guidance system for optical instruments28 May 2026US 2026/0147222 A17Speer Engineering, LLC
- Variable pixel density display system with mechanically-actuated image projector11 Dec 2025US 2025/0377543 A1Magic Leap, Inc.
- White transfer camera check31 Jul 2025US 2025/0244171 A1X-Rite Europe GmbH
- Dynamic focusing head mounted display12 Jun 2025US 2025/0189800 A1e-Vision Smart Optics, Inc.
Most cited
By later US patents
- Focusing system for videodisc player58US 3,997,715 AMCA Disco-Vision, Inc. · 1976
- Driving apparatus for an objective lens55US 4,571,026 ASony Corporation · 1986
- Electronic spot light control52US 6,426,840 B13D Systems, Inc. · 2002
- Crossed cylindrical lens51US 4,230,942 AHoneywell Inc. · 1980
- Optical focussing device50US 4,079,247 A1978