JP2018159931A - 投影表示装置 - Google Patents
投影表示装置 Download PDFInfo
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- JP2018159931A JP2018159931A JP2018093839A JP2018093839A JP2018159931A JP 2018159931 A JP2018159931 A JP 2018159931A JP 2018093839 A JP2018093839 A JP 2018093839A JP 2018093839 A JP2018093839 A JP 2018093839A JP 2018159931 A JP2018159931 A JP 2018159931A
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- 238000001514 detection method Methods 0.000 claims abstract description 96
- 238000000034 method Methods 0.000 claims abstract description 62
- 238000007689 inspection Methods 0.000 claims abstract description 25
- 238000009792 diffusion process Methods 0.000 claims description 104
- 230000003287 optical effect Effects 0.000 claims description 50
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 16
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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- G03B21/00—Projectors or projection-type viewers; Accessories therefor
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- G03B21/00—Projectors or projection-type viewers; Accessories therefor
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- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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- Physics & Mathematics (AREA)
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
- Computer Security & Cryptography (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Projection Apparatus (AREA)
- Instrument Panels (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
[第1実施形態]
[第2実施形態]
[第3実施形態]
[第4実施形態]
Claims (8)
- 投影表示用の第1レーザ光及び検査用の第2レーザ光を出射する光源と、
前記光源から出射された前記第1レーザ光及び前記第2レーザ光を反射して走査する駆動反射部と、
前記駆動反射部によって走査された前記第1レーザ光を透過させて拡散する所定領域を有する光拡散部と、
前記光拡散部の出射面上の位置、又は前記出射面から前記光拡散部の出射側に離れた位置において、前記第1レーザ光を透過させ、前記第2レーザ光を反射する光選択部と、
前記光選択部によって反射された前記第2レーザ光を検出する光検出部と、
前記第2レーザ光の検出処理を実行し、前記光検出部の検出値に基づいて前記光拡散部の前記所定領域の状態を判断する制御部と、を備え、
前記光拡散部は、マイクロレンズアレイであり、
前記制御部は、前記光拡散部の前記所定領域の状態として、前記光拡散部の前記所定領域に不具合が生じていると判断した場合には、投影表示の中止処理を実行する、投影表示装置。 - 前記光拡散部の前記所定領域から出射される前記第2レーザ光の光軸は、前記光拡散部の前記所定領域に入射する前記第2レーザ光の光軸に対してずれている、請求項1に記載の投影表示装置。
- 前記光検出部は、前記駆動反射部と前記光拡散部との間に配置されている、請求項1又は2に記載の投影表示装置。
- 前記光検出部は、前記光選択部によって反射されて前記駆動反射部によって反射された前記第2レーザ光を検出するように配置されている、請求項1又は2に記載の投影表示装置。
- 前記光拡散部の出射面は、複数の凸面によって構成されている、請求項1〜4のいずれか一項に記載の投影表示装置。
- 前記光拡散部のうち前記所定領域外の領域には非透過処理が施されている、請求項1〜5のいずれか一項に記載の投影表示装置。
- 前記制御部は、前記光拡散部の前記所定領域内における前記第2レーザ光の走査位置に対応付けて、前記第2レーザ光の光量に関する基準値を設定する、請求項1〜6のいずれか一項に記載の投影表示装置。
- 前記制御部は、前記第2レーザ光の光量に関する検出値を前記光検出部から受信し、前記光拡散部の前記所定領域内における前記第2レーザ光の走査位置に応じて、当該位置に対応する前記検出値と前記基準値とを比較し、前記光拡散部の前記所定領域の状態を判断する、請求項7に記載の投影表示装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2015072483 | 2015-03-31 | ||
JP2015072483 | 2015-03-31 |
Related Parent Applications (1)
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JP2018046983A Division JP6342098B1 (ja) | 2015-03-31 | 2018-03-14 | 投影表示装置 |
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JP2018159931A true JP2018159931A (ja) | 2018-10-11 |
JP6426318B2 JP6426318B2 (ja) | 2018-11-21 |
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JP2017509429A Active JP6309691B2 (ja) | 2015-03-31 | 2016-03-02 | 投影表示装置 |
JP2018046983A Active JP6342098B1 (ja) | 2015-03-31 | 2018-03-14 | 投影表示装置 |
JP2018093839A Active JP6426318B2 (ja) | 2015-03-31 | 2018-05-15 | 投影表示装置 |
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JP2017509429A Active JP6309691B2 (ja) | 2015-03-31 | 2016-03-02 | 投影表示装置 |
JP2018046983A Active JP6342098B1 (ja) | 2015-03-31 | 2018-03-14 | 投影表示装置 |
Country Status (6)
Country | Link |
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US (1) | US10197895B2 (ja) |
EP (1) | EP3279716B1 (ja) |
JP (3) | JP6309691B2 (ja) |
CN (1) | CN107430280B (ja) |
TW (1) | TWI689773B (ja) |
WO (1) | WO2016158174A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US10466576B2 (en) * | 2017-10-20 | 2019-11-05 | Himax Technologies Limited | Method for controlling projector and associated electronic device |
CN108388063B (zh) * | 2018-02-27 | 2022-03-22 | Oppo广东移动通信有限公司 | 激光投射模组、深度相机和电子装置 |
JP7077186B2 (ja) * | 2018-09-04 | 2022-05-30 | 矢崎総業株式会社 | 車両用表示装置 |
JP2020060401A (ja) * | 2018-10-09 | 2020-04-16 | ソニーセミコンダクタソリューションズ株式会社 | 測距装置、及び検出方法 |
EP3888482B1 (en) * | 2018-12-20 | 2024-02-21 | NS West Inc. | Head-up display device and helmet |
WO2020130028A1 (ja) * | 2018-12-20 | 2020-06-25 | Nsウエスト株式会社 | ヘッドアップディスプレイ装置およびヘルメット |
CN110376835B (zh) * | 2019-07-19 | 2021-01-26 | 四川长虹电器股份有限公司 | 一种激光投影光源 |
JP7460793B2 (ja) * | 2020-03-31 | 2024-04-02 | 華為技術有限公司 | ディフューザフィルムのシフトを検出する装置及びヘッドアップディスプレイ |
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US20180095351A1 (en) | 2018-04-05 |
US10197895B2 (en) | 2019-02-05 |
TW201636723A (zh) | 2016-10-16 |
EP3279716A1 (en) | 2018-02-07 |
EP3279716A4 (en) | 2018-11-07 |
JP6426318B2 (ja) | 2018-11-21 |
JP6309691B2 (ja) | 2018-04-11 |
JPWO2016158174A1 (ja) | 2017-09-28 |
CN107430280B (zh) | 2020-01-31 |
JP6342098B1 (ja) | 2018-06-13 |
TWI689773B (zh) | 2020-04-01 |
CN107430280A (zh) | 2017-12-01 |
EP3279716B1 (en) | 2020-10-14 |
JP2018112751A (ja) | 2018-07-19 |
WO2016158174A1 (ja) | 2016-10-06 |
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