H01J 31/26
Image pick-up tubes having an input of visible light and electric output
Official title: Image pick-up tubes having an input of visible light and electric output (tubes without defined electron beams and having a light ray scanning photo-emissive screen H01J40/20)
H01J31/26 (Image pick-up tubes having an input of visible light and electric output) appears on 177 US grants and 68 published applications in this corpus.
Search patents in H01J- Granted patents
- 177
- Published applications
- 68
- Assignees
- 88
- Inventors
- 333
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 9 | 0 |
| 1978 | 14 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 11 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 5 | 1 |
| 2004 | 3 | 1 |
| 2005 | 0 | 5 |
| 2006 | 4 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 4 |
| 2009 | 5 | 3 |
| 2010 | 1 | 6 |
| 2011 | 4 | 2 |
| 2012 | 3 | 9 |
| 2013 | 3 | 5 |
| 2014 | 3 | 6 |
| 2015 | 6 | 2 |
| 2016 | 2 | 1 |
| 2017 | 3 | 3 |
| 2018 | 1 | 0 |
| 2019 | 3 | 3 |
| 2020 | 3 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 6 |
| 2023 | 6 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01J 31/28With electron ray scanning the image screen73
- H01J 31/48Tubes with amplification of output effected by electron multiplier arrangements within the28
- H01J 31/46Tubes in which electrical output represents both intensity and colour of image16
- H01J 31/42With image screen generating a composite electron beam which is deflected as8
- H01J 31/265With light spot scanning3
Recent patents
- Photoelectric conversion device, electromagnetic wave detection device, photoelectric conversion method and electromagnetic wave detection method3 Mar 2026US 12,567,553 B2Danmarks Tekniske Universitet
- Photoelectron multiplying and collecting tube and imaging device using same24 Dec 2024US 12,176,174 B2Hamamatsu Photonics K.K.
- Compact proximity focused image sensor4 Jun 2024US 12,002,834 B2EOTech, LLC
- Photosensor14 Nov 2023US 11,815,632 B2Kyungpook National University Industry-Academic Cooperation Foundation
- Wafer scale enhanced gain electron bombarded CMOS imager7 Nov 2023US 11,810,747 B2Elbit Systems of America, LLC
- Photoelectric conversion device, electromagnetic wave detection device, photoelectric conversion method and electromagnetic wave detection method31 Oct 2024US 2024/0363302 A1Danmarks Tekniske Universitet
- Compact proximity focused image sensor7 Sep 2023US 2023/0282670 A1EOTech, LLC
- Electron tube29 Dec 2022US 2022/0415638 A1Hamamatsu Photonics K.K.
- Electron tube and imaging device6 Oct 2022US 2022/0319794 A1Hamamatsu Photonics K.K.
- Photosensor18 Aug 2022US 2022/0260730 A1Kyungpook National University Industry-Academic Cooperation Foundation
Most cited
By later US patents
- Electron bombarded active pixel sensor80US 6,285,018 B1Intevac, Inc. · 2001
- Silicon avalanche photodiode array63US 5,021,854 AXsirius Photonics, Inc. · 1991
- Device for inputting data60US 6,504,143 B2Deutsche Telekom AG · 2003
- Intensified hybrid solid-state sensor with an insulating layer60US 6,747,258 B2ITT Manufacturing Enterprises, Inc. · 2004
- Method of manufacturing a target assembly for a camera tube41US 4,251,909 AU. S. Philips Corporation · 1981