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 PDF

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Publication number
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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China
Prior art keywords
circuit
signal
sub
laser
driving circuit
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Pending
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CN202180059605.6A
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English (en)
Inventor
吴凯
陈许
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Qingdao Hisense Laser Display Co Ltd
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Qingdao Hisense Laser Display Co Ltd
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Application filed by Qingdao Hisense Laser Display Co Ltd filed Critical Qingdao Hisense Laser Display Co Ltd
Publication of CN116097166A publication Critical patent/CN116097166A/zh
Pending legal-status Critical Current

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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
    • 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
    • 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
    • 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)

  1. PCT国内申请，权利要求书已公开。
CN202180059605.6A 2020-07-28 2021-07-27 激光投影设备及人眼保护方法 Pending CN116097166A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202010739064.9A CN114019756A (zh) 2020-07-28 2020-07-28 激光投影设备及人眼保护方法
CN202010739064.9 2020-07-28
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

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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

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CN (2) CN114019756A (zh)
WO (1) WO2022022481A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023179683A1 (zh) * 2022-03-22 2023-09-28 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)

* Cited by examiner, † Cited by third party
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
CN101517482B (zh) * 2006-09-14 2015-05-13 皇家飞利浦电子股份有限公司 具有告警光的激光投影仪
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***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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CN114019756A (zh) 2022-02-08
WO2022022481A1 (zh) 2022-02-03

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