G02B 21/125
Affording both dark- and bright-field illumination
Official title: {affording both dark- and bright-field illumination}
G02B21/125 (Affording both dark- and bright-field illumination) appears on 116 US grants and 136 published applications in this corpus.
Search patents in G02B- Granted patents
- 116
- Published applications
- 136
- Assignees
- 84
- Inventors
- 292
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 4 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 3 | 4 |
| 2007 | 3 | 4 |
| 2008 | 4 | 1 |
| 2009 | 3 | 3 |
| 2010 | 2 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 6 |
| 2014 | 3 | 9 |
| 2015 | 3 | 9 |
| 2016 | 10 | 5 |
| 2017 | 6 | 11 |
| 2018 | 4 | 9 |
| 2019 | 11 | 11 |
| 2020 | 9 | 8 |
| 2021 | 8 | 8 |
| 2022 | 5 | 7 |
| 2023 | 11 | 8 |
| 2024 | 6 | 7 |
| 2025 | 5 | 3 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Microscope system with oblique illumination18 Aug 2026US 12,710,635 B2Andor Technology Limited
- Accelerating digital microscopy scans using empty/dirty area detection30 Jun 2026US 12,669,694 B2Scopio Labs Ltd.
- AI enabled selective raman spectrometry using microscopy for diagnosis and analysis of biological samples3 Mar 2026US 12,566,323 B2Secretary, Department of Biotechnology
- Optical measurement method, optical measurement apparatus, and non-transitory storage medium storing optical measurement program24 Feb 2026US 12,560,790 B2Kabushiki Kaisha Toshiba
- Microscopic observation method and microscopic observation device24 Feb 2026US 12,560,794 B2Industrial Technology Research Institute
- Method of improved bright field-dark field metrology1 Oct 2026US 2026/0299276 A1Nanoverse Technologies Ltd
- Methods and apparatus for fourier ptychography microscopy using coded illumination6 Aug 2026US 2026/0227620 A1Siemens Healthcare Diagnostics Inc.
- Lenslet-integrated illuminator for eliminating vignetting-induced artifacts and enhancing light throughput in fourier ptychography11 Jun 2026US 2026/0160986 A1UIF (University Industry Foundation), Yonsei University
- High throughput optical imager28 May 2026US 2026/0147200 A1Standard Biotools Inc.
- Bright- and dark-field microscope for biological tissue analysis15 Jan 2026US 2026/0016675 A1Korea Research Institute of Standards and Science
Most cited
By later US patents
- Brightfield/darkfield microscope illuminator45US 4,585,315 AInternational Business Machines Corporation · 1986
- Illuminating apparatus for a microscope41US 5,517,353 ANikon Corporation · 1996
- Method and device for optically examining structured surfaces of objects34US 6,633,375 B1Leica Microsystems Semiconductor GmbH · 2003
- Variable-illumination fourier ptychographic imaging devices, systems, and methods34US 9,497,379 B2California Institute of Technology · 2016
- Incident illumination apparatus for a microscope33US 4,687,304 ACarl-Zeiss-Stiftung · 1987