KR870019230U - 포커스 블럭 - Google Patents
포커스 블럭Info
- Publication number
- KR870019230U KR870019230U KR2019870007254U KR870007254U KR870019230U KR 870019230 U KR870019230 U KR 870019230U KR 2019870007254 U KR2019870007254 U KR 2019870007254U KR 870007254 U KR870007254 U KR 870007254U KR 870019230 U KR870019230 U KR 870019230U
- Authority
- KR
- South Korea
- Prior art keywords
- focus block
- focus
- block
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
- H04N9/28—Arrangements for convergence or focusing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
- H04N9/18—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals
- H04N9/20—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals with more than one beam in a tube
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/317—Convergence or focusing systems
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP72534 | 1986-05-14 | ||
JP1986072534U JPH0516765Y2 (ko) | 1986-05-14 | 1986-05-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR870019230U true KR870019230U (ko) | 1987-12-28 |
KR930004820Y1 KR930004820Y1 (ko) | 1993-07-23 |
Family
ID=13492109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019870007254U KR930004820Y1 (ko) | 1986-05-14 | 1987-05-13 | 포커스 블럭 |
Country Status (4)
Country | Link |
---|---|
US (1) | US4746973A (ko) |
JP (1) | JPH0516765Y2 (ko) |
KR (1) | KR930004820Y1 (ko) |
CA (1) | CA1280832C (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0378722B1 (en) * | 1989-01-19 | 1994-06-08 | Matsushita Electric Industrial Co., Ltd. | Focussing adjustment changeover circuit for projection TV receiver |
US6377317B1 (en) * | 1999-04-08 | 2002-04-23 | Sony Corporation | Method and apparatus for correcting color component focusing in a rear-projection television set |
WO2008008386A2 (en) | 2006-07-11 | 2008-01-17 | Halliburton Energy Services, Inc. | Modular geosteering tool assembly |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5034417A (ko) * | 1973-07-31 | 1975-04-02 | ||
JPS53115137A (en) * | 1977-03-17 | 1978-10-07 | Sanyo Electric Co Ltd | Projection-type color television device |
US4631576A (en) * | 1984-11-13 | 1986-12-23 | Hazeltine Corporation | Nonuniformity correction system for color CRT display |
US4599641A (en) * | 1984-11-28 | 1986-07-08 | Rca Corporation | Brightness control apparatus for a video signal processing system |
US4599651A (en) * | 1984-11-28 | 1986-07-08 | Rca Corporation | Pulse amplifier in a brightness control system |
JPS62185491A (ja) * | 1986-02-10 | 1987-08-13 | Matsushita Electric Ind Co Ltd | フオ−カス回路 |
-
1986
- 1986-05-14 JP JP1986072534U patent/JPH0516765Y2/ja not_active Expired - Lifetime
-
1987
- 1987-05-11 US US07/048,620 patent/US4746973A/en not_active Expired - Lifetime
- 1987-05-13 KR KR2019870007254U patent/KR930004820Y1/ko not_active IP Right Cessation
- 1987-05-13 CA CA000537059A patent/CA1280832C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4746973A (en) | 1988-05-24 |
JPH0516765Y2 (ko) | 1993-05-06 |
CA1280832C (en) | 1991-02-26 |
KR930004820Y1 (ko) | 1993-07-23 |
JPS62186558U (ko) | 1987-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
FPAY | Annual fee payment |
Payment date: 20010623 Year of fee payment: 9 |
|
EXPY | Expiration of term |