KR890011423A - LCD Projector Auto Focus System - Google Patents
LCD Projector Auto Focus System Download PDFInfo
- Publication number
- KR890011423A KR890011423A KR1019870015524A KR870015524A KR890011423A KR 890011423 A KR890011423 A KR 890011423A KR 1019870015524 A KR1019870015524 A KR 1019870015524A KR 870015524 A KR870015524 A KR 870015524A KR 890011423 A KR890011423 A KR 890011423A
- Authority
- KR
- South Korea
- Prior art keywords
- lcd
- automatic
- data
- half mirror
- lcd projector
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/72—Modifying the appearance of television pictures by optical filters or diffusing screens
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Automatic Focus Adjustment (AREA)
- Projection Apparatus (AREA)
Abstract
내용 없음No content
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명에 따른 LCD프로젝터의 포커스 자동조정 시스템 구성도.1 is a configuration diagram of the automatic focus control system of the LCD projector according to the present invention.
제3도는 본 발명에 따른 콘트롤 회로의 상세도.3 is a detailed view of a control circuit according to the present invention.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019870015524A KR910005250B1 (en) | 1987-12-31 | 1987-12-31 | Focus control system of lcd projector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019870015524A KR910005250B1 (en) | 1987-12-31 | 1987-12-31 | Focus control system of lcd projector |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890011423A true KR890011423A (en) | 1989-08-14 |
KR910005250B1 KR910005250B1 (en) | 1991-07-24 |
Family
ID=19267802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019870015524A KR910005250B1 (en) | 1987-12-31 | 1987-12-31 | Focus control system of lcd projector |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR910005250B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100934654B1 (en) * | 2003-04-17 | 2009-12-31 | 엘지전자 주식회사 | Projection TV's Auto Focusing Device and Method |
-
1987
- 1987-12-31 KR KR1019870015524A patent/KR910005250B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100934654B1 (en) * | 2003-04-17 | 2009-12-31 | 엘지전자 주식회사 | Projection TV's Auto Focusing Device and Method |
Also Published As
Publication number | Publication date |
---|---|
KR910005250B1 (en) | 1991-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20020703 Year of fee payment: 12 |
|
LAPS | Lapse due to unpaid annual fee |