H04N 13/236
Using varifocal lenses or mirrors
Official title: using varifocal lenses or mirrors
H04N13/236 (Using varifocal lenses or mirrors) appears on 168 US grants and 191 published applications in this corpus.
Search patents in H04N- Granted patents
- 168
- Published applications
- 191
- Assignees
- 112
- Inventors
- 397
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 3 |
| 2006 | 2 | 2 |
| 2007 | 2 | 3 |
| 2008 | 0 | 3 |
| 2009 | 3 | 2 |
| 2010 | 0 | 2 |
| 2011 | 4 | 6 |
| 2012 | 1 | 11 |
| 2013 | 7 | 18 |
| 2014 | 10 | 23 |
| 2015 | 16 | 20 |
| 2016 | 18 | 15 |
| 2017 | 11 | 15 |
| 2018 | 11 | 7 |
| 2019 | 16 | 10 |
| 2020 | 10 | 8 |
| 2021 | 4 | 9 |
| 2022 | 6 | 5 |
| 2023 | 10 | 7 |
| 2024 | 5 | 6 |
| 2025 | 7 | 4 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for spatial video capture3 Feb 2026US 12,542,887 B2Adeia Imaging LLC
- Stereo lens apparatus and image pickup apparatus16 Sep 2025US 12,416,776 B2Canon Kabushiki Kaisha
- 3D stereoscopic camera monitoring system and method of calibrating a camera monitoring system for monitoring a patient in a bore of a medical system for radiation treatment12 Aug 2025US 12,383,767 B2Vision Rt Limited
- Camera module29 Jul 2025US 12,369,807 B2Neko Health AB
- Augmented reality device including variable focus lenses and operating method thereof15 Apr 2025US 12,279,033 B2Samsung Electronics Co., Ltd.
- Parallax-based automatic focusing and focus locking method for light field microscopy system6 Aug 2026US 2026/0227619 A1Zhejiang Hehu Technology Co., Ltd.
- Welding torch assemblies with integrated vision systems9 Jul 2026US 2026/0192379 A1
- Camera apparatus25 Jun 2026US 2026/0177700 A1LG Innotek Co., Ltd.
- Ultracompact optical system for 3-d imaging25 Jun 2026US 2026/0181119 A1Akmira Optronics GmbH
- Systems and methods for spatial video capture7 May 2026US 2026/0129171 A1Adeia Imaging LLC
Most cited
By later US patents
- Apparatus and methods for determining the three-dimensional shape of an object using active illumination and relative blurring in two-images due to defocus519US 6,229,913 B1The Trustees of Columbia University in the City of New York · 2001
- Generating categorical depth maps using passive defocus sensing386US 5,793,900 AStanford University · 1998
- Computational methods and electronic camera apparatus for determining distance of objects, rapid autofocusing, and obtaining improved focus images188US 5,193,124 AThe Research Foundation of State University of New York · 1993
- Imaging arrangements and methods therefor139US 7,936,392 B2The Board of Trustees of the Leland Stanford Junior University · 2011
- Depth-of-field control apparatus and image pickup apparatus having the same therein123US 5,282,045 AHitachi Denshi Kabushiki Kaisha · 1994