CN116097166A - 激光投影设备及人眼保护方法 - Google Patents
激光投影设备及人眼保护方法 Download PDFInfo
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- CN116097166A CN116097166A CN202180059605.6A CN202180059605A CN116097166A CN 116097166 A CN116097166 A CN 116097166A CN 202180059605 A CN202180059605 A CN 202180059605A CN 116097166 A CN116097166 A CN 116097166A
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- Prior art keywords
- circuit
- signal
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- laser
- driving circuit
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
- H01S5/0427—Electrical excitation ; Circuits therefor for applying modulation to the laser
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
一种激光投影设备及人眼保护方法。激光投影设备中的信号检测电路(20)用于对目标物进行检测,并将检测到的检测信号发送至控制电路(30)。控制电路(30)用于若根据检测信号确定目标物位于目标区域内,则向副屏驱动电路(40)发送副屏驱动信号,并向激光器驱动电路(60)发送关闭信号。副屏驱动电路(40)用于响应于副屏驱动信号,驱动副屏(50)显示提示信息,该提示信息用于提示目标物移动至目标区域之外。激光器驱动电路(60)用于响应于关闭信号关闭激光器(70)。由此能够避免激光器(70)出射的激光对人眼造成伤害。
Description
PCT国内申请,说明书已公开。
Claims (10)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010739064.9 | 2020-07-28 | ||
CN202010739064.9A CN114019756A (zh) | 2020-07-28 | 2020-07-28 | 激光投影设备及人眼保护方法 |
PCT/CN2021/108537 WO2022022481A1 (zh) | 2020-07-28 | 2021-07-27 | 激光投影设备及人眼保护方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN116097166A true CN116097166A (zh) | 2023-05-09 |
Family
ID=80037555
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010739064.9A Pending CN114019756A (zh) | 2020-07-28 | 2020-07-28 | 激光投影设备及人眼保护方法 |
CN202180059605.6A Pending CN116097166A (zh) | 2020-07-28 | 2021-07-27 | 激光投影设备及人眼保护方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010739064.9A Pending CN114019756A (zh) | 2020-07-28 | 2020-07-28 | 激光投影设备及人眼保护方法 |
Country Status (2)
Country | Link |
---|---|
CN (2) | CN114019756A (zh) |
WO (1) | WO2022022481A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118575472A (zh) * | 2022-03-22 | 2024-08-30 | 青岛海信激光显示股份有限公司 | 激光投影设备及其控制方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19640404A1 (de) * | 1996-09-30 | 1998-04-09 | Ldt Gmbh & Co | Vorrichtung zur Darstellung von Bildern |
US6361173B1 (en) * | 2001-02-16 | 2002-03-26 | Imatte, Inc. | Method and apparatus for inhibiting projection of selected areas of a projected image |
JP4366631B2 (ja) * | 2002-06-10 | 2009-11-18 | ソニー株式会社 | 画像投射装置及び画像投射方法 |
KR20070102061A (ko) * | 2006-04-13 | 2007-10-18 | 삼성전자주식회사 | 영상 투사기에서 인체 감지 센서를 이용하여 레이저 광을차단하는 방법 및 그 장치 |
EP2067073A1 (en) * | 2006-09-14 | 2009-06-10 | Philips Intellectual Property & Standards GmbH | Laser projector with alerting light |
JP2009244633A (ja) * | 2008-03-31 | 2009-10-22 | Toshiba Corp | 投射型表示装置及びその制御方法 |
CN103576431B (zh) * | 2013-11-20 | 2016-03-23 | 巴可伟视(北京)电子有限公司 | 一种应用于高亮度激光投影机使用现场对人眼实施保护的方法及系统装置 |
CN105306856B (zh) * | 2015-10-26 | 2018-06-29 | 全普光电科技(上海)有限公司 | 微投影仪安全装置 |
CN108271008B (zh) * | 2016-12-30 | 2020-02-28 | 深圳光峰科技股份有限公司 | 投影设备 |
CN107770466B (zh) * | 2017-11-06 | 2019-12-17 | 青岛海信激光显示股份有限公司 | 一种激光电视 |
CN111045283A (zh) * | 2018-10-15 | 2020-04-21 | 中强光电股份有限公司 | 投影机及投影方法 |
CN112616046B (zh) * | 2020-12-15 | 2024-07-12 | 青岛海信激光显示股份有限公司 | 激光投影设备及其提示方法 |
CN112687216B (zh) * | 2020-12-28 | 2022-05-24 | 青岛海信激光显示股份有限公司 | 激光投影设备及其控制方法 |
CN112687215B (zh) * | 2020-12-28 | 2022-06-07 | 青岛海信激光显示股份有限公司 | 激光投影设备及其控制方法 |
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2020
- 2020-07-28 CN CN202010739064.9A patent/CN114019756A/zh active Pending
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2021
- 2021-07-27 CN CN202180059605.6A patent/CN116097166A/zh active Pending
- 2021-07-27 WO PCT/CN2021/108537 patent/WO2022022481A1/zh active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2022022481A1 (zh) | 2022-02-03 |
CN114019756A (zh) | 2022-02-08 |
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