G02B 15/02
Optical objectives with means for varying the magnification: by changing, adding, or
Official title: by changing, adding, or subtracting a part of the objective, e.g. convertible objective
G02B15/02 (Optical objectives with means for varying the magnification: by changing, adding, or) appears on 576 US grants and 489 published applications in this corpus.
Search patents in G02B- Granted patents
- 576
- Published applications
- 489
- Assignees
- 233
- Inventors
- 831
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 11 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 12 | 0 |
| 1997 | 10 | 0 |
| 1998 | 11 | 0 |
| 1999 | 8 | 0 |
| 2000 | 13 | 0 |
| 2001 | 12 | 6 |
| 2002 | 9 | 12 |
| 2003 | 11 | 9 |
| 2004 | 3 | 8 |
| 2005 | 6 | 11 |
| 2006 | 7 | 13 |
| 2007 | 11 | 12 |
| 2008 | 9 | 17 |
| 2009 | 13 | 15 |
| 2010 | 16 | 12 |
| 2011 | 13 | 18 |
| 2012 | 13 | 14 |
| 2013 | 17 | 22 |
| 2014 | 20 | 18 |
| 2015 | 19 | 20 |
| 2016 | 14 | 26 |
| 2017 | 30 | 49 |
| 2018 | 22 | 30 |
| 2019 | 29 | 22 |
| 2020 | 25 | 28 |
| 2021 | 24 | 31 |
| 2022 | 24 | 30 |
| 2023 | 23 | 28 |
| 2024 | 25 | 14 |
| 2025 | 22 | 15 |
| 2026 | 10 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rear attachment lens and image pickup optical system using the same1 Sep 2026US RE51,021 E1Canon Kabushiki Kaisha
- Use of an additional optical element, a lens system and a camera system18 Aug 2026US 12,710,618 B2Arnold & Richter Cine Technik GmbH & Co.Betriebs KG
- Variable print chamber walls for powder bed fusion additive manufacturing11 Aug 2026US 12,703,145 B2Seurat Technologies, Inc.
- Imaging lens assembly, camera module and imaging device16 Jun 2026US 12,656,584 B2Guangdong Oppo Mobile Telecommunication Corp., Ltd.
- Variable magnification optical component and ophthalmic apparatus16 Jun 2026US 12,656,585 B2Topcon Corporation
- Attachment lens17 Sep 2026US 2026/0276958 A1Mitsubishi Gas Chemical Company, Inc.
- Rear Optical Device, Assembly Forming a Modular Zoom, and Method for Changing the Zoom of a Camera Lens30 Jul 2026US 2026/0219556 A1Thales
- Adapter Lens for Enhanced Video Stabilization23 Jul 2026US 2026/0214332 A1GoPro, Inc.
- Chamber Systems For Additive Manufacturing9 Jul 2026US 2026/0192513 A1Seurat Technologies, Inc.
- Rear converter lens, lens apparatus, and image pickup apparatus2 Jul 2026US 2026/0186278 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Mobile user borne brain activity data and surrounding environment data correlation system364US 9,101,279 B2Virtual Video Reality by Ritchey, LLC · 2015
- Objective lens system for endoscopes232US 4,877,314 AOlympus Optical Co., Ltd. · 1989
- Method and apparatus for providing a video image having multiple focal lengths217US 8,390,729 B2International Business Machines Corporation · 2013
- Zoom related methods and apparatus210US 9,736,365 B2Light Labs Inc. · 2017
- Illuminating arrangement including a zoom objective incorporating two axicons158US 5,675,401 ACarl-Zeiss-Stiftung · 1997