G02B 27/16
Used as aids for focusing
Official title: used as aids for focusing
G02B27/16 (Used as aids for focusing) appears on 99 US grants and 71 published applications in this corpus.
Search patents in G02B- Granted patents
- 99
- Published applications
- 71
- Assignees
- 72
- Inventors
- 231
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 3 |
| 2006 | 4 | 3 |
| 2007 | 0 | 3 |
| 2008 | 4 | 0 |
| 2009 | 3 | 3 |
| 2010 | 0 | 5 |
| 2011 | 1 | 0 |
| 2012 | 4 | 3 |
| 2013 | 3 | 2 |
| 2014 | 2 | 2 |
| 2015 | 1 | 0 |
| 2016 | 2 | 3 |
| 2017 | 3 | 1 |
| 2018 | 0 | 3 |
| 2019 | 2 | 4 |
| 2020 | 2 | 6 |
| 2021 | 4 | 9 |
| 2022 | 3 | 5 |
| 2023 | 5 | 4 |
| 2024 | 6 | 3 |
| 2025 | 4 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical device, display apparatus including same, and method for extending length of optical path12 May 2026US 12,625,384 B2Samsung Electronics Co., Ltd.
- Multibeam 3-D focus generator5 May 2026US 12,619,090 B2Carl Zeiss SMT GmbH
- Systems and methods for illuminating and imaging objects11 Nov 2025US 12,468,167 B2Life Technologies Holdings Pte Limited
- Use of nanoparticles to tune index of refraction of layers of a polymeric matrix to optimize microoptic (MO) focus10 Jun 2025US 12,325,252 B2Crane Co.
- System and method for locating a surface of ocular tissue for glaucoma surgery based on dual aiming beams11 Mar 2025US 12,245,813 B2ViaLase, Inc.
- Guided munition and optical assembly with an annular folded optic having a slot extending therethrough2 Jul 2026US 2026/0185805 A1BAE Systems Information and Electronic Systems Integration Inc.
- Guided munition and optical assembly with an annular folded optic and beamsplitter2 Jul 2026US 2026/0186282 A1BAE Systems Information and Electronic Systems Integration Inc.
- Systems and methods for illuminating and imaging objects12 Feb 2026US 2026/0044014 A1Life Technologies Holdings Pte Limited
- Dynamic focusing head mounted display12 Jun 2025US 2025/0189800 A1e-Vision Smart Optics, Inc.
- Optical system, optical device, and method for manufacturing optical system1 May 2025US 2025/0138289 A1Nikon Corporation
Most cited
By later US patents
- Automatic focusing position detection apparatus79US 4,387,975 ARicoh Company, Ltd. · 1983
- Apparatus for adjusting the focal point of an operating laser beam focused by an objective74US 4,289,378 A1981
- Image display device, semiconductor device and optical element74US 5,926,238 ACanon Kabushiki Kaisha · 1999
- Optical beamsplitter51US 5,568,315 ADiscovision Associates · 1996
- Micro-display engine45US 7,397,607 B2Vuzix Corporation · 2008