G03H 2240/53
Diffraction efficiency [de]
Official title: Diffraction efficiency [DE]
G03H2240/53 (Diffraction efficiency [de]) appears on 39 US grants and 50 published applications in this corpus.
Search patents in G03H- Granted patents
- 39
- Published applications
- 50
- Assignees
- 45
- Inventors
- 149
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 2 | 2 |
| 2012 | 3 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 0 | 6 |
| 2022 | 5 | 6 |
| 2023 | 3 | 2 |
| 2024 | 2 | 5 |
| 2025 | 2 | 1 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of duplicating a hologram comprising a step of preparing a master with a master hologram and hologram optical element25 Aug 2026US 12,717,275 B2Goertek Inc.
- User positioning within an eye-box of a head-up display18 Aug 2026US 12,710,646 B2Dualitas Ltd
- Method of manufacturing optical element and projection device5 May 2026US 12,619,087 B2HTC Corporation
- Holographic optical device and manufacturing method therefor7 Apr 2026US 12,596,326 B2LG Chem.Ltd.
- Method for producing a holographic optical element, control device and exposure device20 Jan 2026US 12,529,996 B2Robert Bosch GmbH
- Measurement method for determining a replication parameter, and replication method using the determined replication parameter20 Aug 2026US 2026/0244155 A1
- Exposure apparatus, exposure method, and method for manufacturing holographic optical element25 Jun 2026US 2026/0177452 A1Panasonic Intellectual Property Management Co., Ltd.
- Exposure apparatus, exposure method, and method for manufacturing holographic optical element25 Jun 2026US 2026/0177975 A1Panasonic Intellectual Property Management Co., Ltd.
- Method for preparing polarization volume holographic grating capable of achieving different diffraction efficiencies, and polarization volume holographic grating4 Jun 2026US 2026/0153835 A1Southeast University
- Control of a replication process of a master holographic optical element for variable intensity or polarisation30 Apr 2026US 2026/0118822 A1Carl Zeiss Jena GmbH
Most cited
By later US patents
- Increased Bragg angle sensitivity hologram system and method22US 5,331,445 AInternational Business Machines Corporation · 1994
- Method and system for maintaining and controlling the signal-to-noise ratio of hologams recorded in ferroelectric photorefractive materials22US 5,684,612 AThe Board of Trustees of the Leland Stanford Junior University · 1997
- Physically functional materials17US 6,376,655 B1Riso National Laboratory · 2002
- Hologram plate and its fabrication process13US 6,714,329 B2Dai Nippon Printing Co.Ltd. · 2004
- Diffractive projection apparatus10US 11,726,332 B2DigiLens Inc. · 2023