CN1411568A - 正投屏幕 - Google Patents

正投屏幕 Download PDF

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Publication number
CN1411568A
CN1411568A CN00817440.7A CN00817440A CN1411568A CN 1411568 A CN1411568 A CN 1411568A CN 00817440 A CN00817440 A CN 00817440A CN 1411568 A CN1411568 A CN 1411568A
Authority
CN
China
Prior art keywords
light source
lateral surface
screen
projection light
projection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN00817440.7A
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English (en)
Other versions
CN1183417C (zh
Inventor
孙柏林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN99121053A external-priority patent/CN1294317A/zh
Application filed by Individual filed Critical Individual
Publication of CN1411568A publication Critical patent/CN1411568A/zh
Application granted granted Critical
Publication of CN1183417C publication Critical patent/CN1183417C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Overhead Projectors And Projection Screens (AREA)

Abstract

一种正投屏幕，其包括平面基层，在其光反射侧面上形成多个并排、外突的环形条带，该带包括面对投影光源的，形成光反射部的外侧面4，与不面对投影光源的，形成杂光吸收部的外侧面3，这两个面交叉，每个条带与基层交界的底面实现共面，所有条带中的外侧面4具有共同的焦点，外侧面3这样定位，即每个条带中的外侧面4不对投向相邻条带中的整个外侧面4上的投影光遮挡。

Description

PCT国内申请，说明书已公开。

Claims (1)

  1. PCT国内申请，权利要求书已公开。
CNB008174407A 1999-11-01 2000-10-31 正投屏幕 Expired - Fee Related CN1183417C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN99121053.0 1999-11-01
CN99121053A CN1294317A (zh) 1999-11-01 1999-11-01 正投屏幕
PCT/CN2000/000411 WO2001033298A1 (fr) 1999-11-01 2000-10-31 Ecran de projection orthogonale

Publications (2)

Publication Number Publication Date
CN1411568A true CN1411568A (zh) 2003-04-16
CN1183417C CN1183417C (zh) 2005-01-05

Family

ID=34195324

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008174407A Expired - Fee Related CN1183417C (zh) 1999-11-01 2000-10-31 正投屏幕

Country Status (1)

Country Link
CN (1) CN1183417C (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111624843B (zh) * 2020-07-28 2021-02-12 成都菲斯特科技有限公司 一种光学投影屏幕及投影系统

Also Published As

Publication number Publication date
CN1183417C (zh) 2005-01-05

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