JP7027376B2 - 構造化光を提供する回折光学装置 - Google Patents
構造化光を提供する回折光学装置 Download PDFInfo
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- JP7027376B2 JP7027376B2 JP2019121127A JP2019121127A JP7027376B2 JP 7027376 B2 JP7027376 B2 JP 7027376B2 JP 2019121127 A JP2019121127 A JP 2019121127A JP 2019121127 A JP2019121127 A JP 2019121127A JP 7027376 B2 JP7027376 B2 JP 7027376B2
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
- G02B27/425—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in illumination systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
- G02B5/1871—Transmissive phase gratings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4266—Diffraction theory; Mathematical models
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4288—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having uniform diffraction efficiency over a large spectral bandwidth
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B2005/1804—Transmission gratings
Description
本願は、2018年6月28日に出願された米国仮出願第62/691,443号の優先権を主張し、その全開示を参照により本明細書に援用する。
Claims (16)
- 入力照明を複数の異なる回折次数の構造化光に回折させる位相プロファイルを有する微細構造を光学材料の表面に沿って含む回折光学素子であって、Pは整数であり、
前記位相プロファイルは少なくとも部分的に、しかし不完全に位相アンラップされ、
前記入力照明の中心波長での前記複数の異なる回折次数のうちゼロ回折次数において、光の強度は他の回折次数と同一である回折光学素子。 - 請求項1に記載の回折光学素子において、前記表面は、前記位相プロファイルが延びる深さ次元にそれぞれ直交する1次元又は2次元に沿って延びる回折光学素子。
- 請求項1に記載の回折光学素子において、前記光学材料は単一の光学材料である回折光学素子。
- 請求項4に記載の回折光学素子において、前記単一の光学材料の前記表面は、前記単一の光学材料の第2表面の反対側の第1表面である回折光学素子。
- 請求項5に記載の回折光学素子において、前記第2表面は、前記単一の光学材料の前記第1表面に沿った前記微細構造と同じ微細構造を有する回折光学素子。
- 請求項5に記載の回折光学素子において、前記第2表面は、前記単一の光学材料の前記第1表面に沿った前記微細構造とは異なる微細構造を有する回折光学素子。
- 請求項5に記載の回折光学素子において、前記第2表面は平坦である回折光学素子。
- 請求項1に記載の回折光学素子において、前記光学材料は、2つ以上の異なる光学材料を含む複合光学材料である回折光学素子。
- 請求項9に記載の回折光学素子において、前記複合材は、第2外面の反対側の第1外面を有する回折光学素子。
- 請求項10に記載の回折光学素子において、前記第2外面は、前記複合光学材料の前記第1外面に沿った前記微細構造と同じ微細構造を有する回折光学素子。
- 請求項10に記載の回折光学素子において、前記第2外面は、前記複合光学材料の前記第1外面に沿った前記微細構造とは異なる微細構造を有する回折光学素子。
- 請求項10に記載の回折光学素子において、前記第2外面は平坦である回折光学素子。
- 請求項1に記載の回折光学素子において、前記位相プロファイルは、2πPアンラップ位相プロファイルであり且つ前記表面に沿って周期的である回折光学素子。
- 回折光学素子を生成する方法であって、
構造化光パターンを生成する位相プロファイルを計算するステップと、
前記構造化光パターンの計算された前記位相プロファイルを不完全にアンラップして2πPアンラップ位相プロファイルを得るステップと、
前記2πPアンラップ位相プロファイルを生成するステップと、
生成された前記2πPアンラップ位相プロファイルに基づき光学材料の表面に沿って微細構造を作製するステップと
を含み、
Pは整数であり、
入力照明の中心波長での複数の異なる回折次数のうちゼロ回折次数において、光の強度は他の回折次数と同一である方法。 - 請求項15に記載の方法において、構造化光パターンを規定するステップをさらに含む方法。
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US201862691443P | 2018-06-28 | 2018-06-28 | |
US62/691,443 | 2018-06-28 |
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JP2020008850A JP2020008850A (ja) | 2020-01-16 |
JP7027376B2 true JP7027376B2 (ja) | 2022-03-01 |
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US (1) | US20200004036A1 (ja) |
EP (1) | EP3588171A1 (ja) |
JP (1) | JP7027376B2 (ja) |
KR (2) | KR102291023B1 (ja) |
CN (2) | CN115390172A (ja) |
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CN113219675B (zh) * | 2021-04-01 | 2022-08-30 | 嘉兴驭光光电科技有限公司 | 衍射光学元件设计方法以及激光投射模组 |
CN113625462B (zh) * | 2021-09-13 | 2023-01-06 | 江西欧迈斯微电子有限公司 | 衍射光学元件、投射模组及电子设备 |
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2021
- 2021-08-09 KR KR1020210104280A patent/KR102505752B1/ko active IP Right Grant
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KR20200002014A (ko) | 2020-01-07 |
JP2020008850A (ja) | 2020-01-16 |
CN110658573A (zh) | 2020-01-07 |
KR102291023B1 (ko) | 2021-08-18 |
CA3048260C (en) | 2021-11-09 |
KR20210100581A (ko) | 2021-08-17 |
CA3048260A1 (en) | 2019-12-28 |
KR102505752B1 (ko) | 2023-03-06 |
CN115390172A (zh) | 2022-11-25 |
EP3588171A1 (en) | 2020-01-01 |
US20200004036A1 (en) | 2020-01-02 |
CN110658573B (zh) | 2022-08-19 |
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