KR910006467Y1 - Mirror angle control device of projection tv - Google Patents

Mirror angle control device of projection tv Download PDF

Info

Publication number
KR910006467Y1
KR910006467Y1 KR2019850017838U KR850017838U KR910006467Y1 KR 910006467 Y1 KR910006467 Y1 KR 910006467Y1 KR 2019850017838 U KR2019850017838 U KR 2019850017838U KR 850017838 U KR850017838 U KR 850017838U KR 910006467 Y1 KR910006467 Y1 KR 910006467Y1
Authority
KR
South Korea
Prior art keywords
mirror
upper mirror
screw
screen
projection
Prior art date
Application number
KR2019850017838U
Other languages
Korean (ko)
Other versions
KR870011644U (en
Inventor
유진성
Original Assignee
주식회사 금성사
허신구
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
Application filed by 주식회사 금성사, 허신구 filed Critical 주식회사 금성사
Priority to KR2019850017838U priority Critical patent/KR910006467Y1/en
Publication of KR870011644U publication Critical patent/KR870011644U/en
Application granted granted Critical
Publication of KR910006467Y1 publication Critical patent/KR910006467Y1/en

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
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • 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
    • G03B21/142—Adjusting of projection optics
    • 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
    • G03B21/28—Reflectors in projection beam

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

내용 없음.No content.

Description

투과형 프로젝션 텔레비젼의 거울 반사각 조정장치Mirror reflection angle adjuster for transmission projection televisions

제1도는 본 고안이 설치된 투과형 프로젝션 텔레비젼의 개략도.1 is a schematic diagram of a transmissive projection television equipped with the present invention.

제2도는 본 고안이 설치된 상부 거울과 캐비넷의 관계 사시도.2 is a perspective view of the relationship between the cabinet and the upper mirror in which the subject innovation is installed.

제3도는 제2도의 A부 확대 사시도.3 is an enlarged perspective view of portion A of FIG.

제4도는 제2도의 B부 확대 사시도.4 is an enlarged perspective view of portion B of FIG.

제5도는 본 고안 스크류의 전후 이동시 상부 거울의 작동도.5 is an operation of the upper mirror during the forward and backward movement of the screw of the present invention.

제6도는 본 고안 스크류의 전후 이동시 상부 거울의 작동도이다.6 is an operation of the upper mirror when the screw of the present invention moves forward and backward.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

6 : 상부거울 8, 9 : 힌지축6: upper mirror 8, 9: hinge axis

9, 9' : 지지편 10, 10' : 스크류9, 9 ': support piece 10, 10': screw

11 ; 고정지지편 12 : 스크류11; Fixed support 12: screw

13 : 거울 고정대13: mirror holder

본 고안은 투과형 프로젝션 텔레비젼의 상부 거울을 조정함으로서 투과되어 나오는 화상의 크기 및 각도를 조절할 수 있도록한 투과형 프로젝션 텔레비젼의 거울 반사각 조정장치에 관한 것으로, 상부 거울이 양측의 힌지축으로 지지편에 지지되게 스크류로 나선 조립하고, 상부 거울 상측에는 스크류 첨단과 거울 고정대가 서로 접하게 하여 상부 거울이 스크류의 이동에 따라 힌지축을 중심으로 경사 조절되게 한 것으로, 스크린의 화질이 선명토록 한 것이다.The present invention relates to a mirror reflection angle adjusting device of a transmissive projection television which adjusts the size and angle of the transmitted image by adjusting the upper mirror of the transmissive projection television. Helical assembly with screws, and the upper side of the upper mirror is in contact with the screw tip and the mirror holder so that the upper mirror is tilted around the hinge axis according to the movement of the screw, the screen quality is clear.

종래에 있어서는, 상부 거울을 지지대 고정시켜 놓고 좌, 우 고정틀의 이동에 의하여 각도가 결정되었으나, 그 효과가 양호하지 못하므로써 화면의 각도나 화상의 크기가 맞지 않아서 전체적인 화면의 질을 저하시켰으며, 특히 중요한 조정 부분인 컨버젼스 조정에도 문제가 발생하는 결함이 있었으며, 화면의 촛점 거리가 정확하게 맞지 않게 되어 화질이 선명치 못한 결점이 있었던 것이다.In the related art, the angle was determined by moving the left and right fixing frames with the upper mirror fixed, but the effect was not good, and the screen angle or the size of the image did not match, thereby degrading the overall screen quality. In particular, there was a defect that caused problems in convergence adjustment, which is an important adjustment part, and a defect in which the image quality was not clear because the focal length of the screen was not exactly matched.

본 고안은 상기와 같은 문제점을 감안하여 안출한 것으로, 하부 거울과 대향되고 캐비넷내에 설치되는 상부 거울의 양측 힌지축이 지지되게한, 지지편을 각각의 스크류로 나선 조립하고, 상부 거울 상측에는 스크류의 첨단이 상부 거울의 고정대와 서로 접하게 설치하여서 상부 거울이 스크류의 이동과 함께 힌지축을 중심으로 경사 조절되게 한 것으로, 상부 거울 각도를 용이하게 조절할 수 있어 정확한 촛점이 유지되어 항상 선명한 스크린의 화질을 시청자에게 제공하는 것이다.The present invention has been devised in view of the above problems, and the support pieces are spirally assembled with the respective screws, which are opposite to the lower mirror and allow both hinge shafts of the upper mirror installed in the cabinet to be supported. The tip of the upper mirror is installed in contact with each other, so that the upper mirror is tilted around the hinge axis with the movement of the screw. The upper mirror angle can be easily adjusted to maintain accurate focus so that the screen quality is always clear. To the viewer.

이를 첨부된 도면에 의하여 설명하면 다음과 같다.This will be described with reference to the accompanying drawings.

도면 제1도에서와 같이, 캐비넷(1) 내측에 설정된 브라운관(2)에서 나온 화상의 빛이 렌즈(3)와 하부 거울(4)을 통하여 스크린(5)에 투과되게 상기 하부 거울(4)과 스크린(5) 사이에 상부 거울(6)을 하부거울(4)과 대향되게 설치한 것에 있어서, 도면 제2도에서와 같이, 상부 거울(6) 양측 거울 고정편(7), (7')에 형성된 힌지축(8), (8')이 걸림 지지되게 지지편(9), (9')을 각각의 스크류(10), (10')로 나선 조립설치하고, 상부 거울(6)의 상부에는 고정지지편(11)에 나선 조립된 스크류(12)의 첨단이 상부 거울(6)을 지지토록 형성한 거울 고정대(13)이 끝단과 서로 접하게 설치하여서 상기 스크류(12)의 나선 이동 조작으로 상부 거울(6)이 힌지축(8), (8')을 중심으로 회동되어 상부 거울(6)의 경사각이 조절되게 설치한 것으로, 이때 거울 고정대(13)은 상부 거울(6)의 무게중심이 힌지축(8), (8')선 보다 아래에 있도록 설치한다. 미설명부호 14, 14'는 스톱퍼이다.As shown in FIG. 1, the lower mirror 4 is adapted to transmit light of an image from the CRT 2 set inside the cabinet 1 to the screen 5 through the lens 3 and the lower mirror 4. In the case where the upper mirror 6 is disposed between the screen 5 and the screen 5 so as to face the lower mirror 4, as shown in FIG. 2, the upper mirror 6 both mirror fixing pieces 7, 7 ' The support pieces 9 and 9 'are assembled with screws 10 and 10', respectively, so that the hinge shafts 8 and 8 'formed on the support shafts are engaged, and the upper mirror 6 In the upper portion of the screw 12 assembled in a fixed support piece 11, the tip of the screw 12 is formed so as to support the upper mirror 6, the mirror holder 13 is installed in contact with the end and the spiral movement of the screw 12 The upper mirror 6 is rotated about the hinge shafts 8 and 8 'by the operation so that the inclination angle of the upper mirror 6 is adjusted. At this time, the mirror holder 13 of the upper mirror 6 Center of gravity Shaft 8, 8 'and installed so that below the line. Reference numerals 14 and 14 'are stoppers.

상기와 같이된 본 고안의 작용 효과를 상술하면, 도면 제1도에서와 같이, 브라운관(2)에서 나온 화상의 빛이 렌즈(3), 하부거울(4)을 통하여 상부거울(6)의 굴절반사로 스크린(5)에 투과되는 것으로, 하부거울(4)에서 굴절반사되는 화상의 빛이 상부 거울(6)의 조작 각도에 따라 스크린(5)에 정확한 촛점으로서 선명한 화면이 유지되는 것이다.Referring to the effect of the present invention as described above, as shown in Figure 1, the light of the image from the CRT 2 is refracted by the upper mirror 6 through the lens 3, the lower mirror 4 The light transmitted through the screen 5 by the reflection, the image of the image refracted by the lower mirror 4 is maintained as a clear focus as the correct focus on the screen 5 according to the operating angle of the upper mirror 6.

그러나, 본 고안은 상부거울(6)의 양측 힌지축(8), (8')이 지지되는 지지편(9), (9')이 도면 제2도와 같이 스크류(10), (10')로 나선 조립되어 있고, 상부거울(6)의 상부는 도면 제3도와 같이 상부 거울(6)을 지지하는 거울 고정대(13)와 스크류(12)의 첨단이 서로 접하게 설치되어 있어서 스크류(12)의 나선이동에 따라 상부거울(6)은 상기 힌지축(8), (8')을 중심으로 회동되어 제5도에서 나타낸 바와 같이 상부거울(6)의 경사각이 더욱더 긴밀하게 조절되는 것이다.However, according to the present invention, the support pieces 9 and 9 'on which the hinge shafts 8 and 8' of the upper mirror 6 are supported are screw 10 and 10 'as shown in FIG. The upper part of the upper mirror 6 is provided with the mirror holder 13 supporting the upper mirror 6 and the tip of the screw 12 in contact with each other, as shown in FIG. 3. As the spiral moves, the upper mirror 6 is rotated about the hinge shafts 8 and 8 'so that the inclination angle of the upper mirror 6 is adjusted more closely as shown in FIG.

또한, 스크류(10), (10')를 회전시켜 지지편(9), (9')를 전, 후로 이동시켜 제6도와 같이 상부거울(6)의 좌우각도를 조절할 수 있다.In addition, by rotating the screw (10), (10 ') to move the support pieces (9, 9) back and forth, it is possible to adjust the left and right angles of the upper mirror (6) as shown in FIG.

따라서, 하부거울(4)로부터 상부거울(6)로 흡수되는 화상의 빛은 선택적인 스크류(12) 및 스크류(10), (10')의 조절로써 상부거울(6)이 회동되어 경사각이 조절되므로 정확한 초점으로 스크린(5)에 화상의 빛이 안착되어 더욱더 선명한 화면이 유지되는 것이다.Therefore, the light of the image absorbed from the lower mirror 4 to the upper mirror 6 is rotated by adjusting the optional screw 12 and the screws 10 and 10 'so that the upper mirror 6 is rotated. Therefore, the light of the image is seated on the screen 5 with the correct focus, so that a clearer screen is maintained.

이와같은 본 고안은, 상부거울(6) 상부에 설치한 스크류(12)의 길이에 의해 상부거울(6) 각도의 크기가 결정되는 것으로서 종래의 것에 비하여 월등하게 화상의 조정이 용이한 것이고, 이로 인하여 초점 거리의 정확성으로 화면의 선명도가 향상되어 컨버젼스 조정도 용이하게 할 수 있는 유용한 고안인 것이다The present invention as described above, the size of the angle of the upper mirror (6) is determined by the length of the screw 12 installed on the upper mirror (6), it is easier to adjust the image than the conventional one, Due to the accuracy of the focal length, the sharpness of the screen is improved, which makes it easy to adjust the convergence.

Claims (1)

캐비넷(1)내에서 브라운관(2) 전방에 렌즈(3), 하부거울(4)을 설치하고, 하부 거울(4)과 대향된 상부거울(6)을 일정 경사각으로 경사조절하는 것에 있어서, 상부거울(6)의 양측 힌지축(8), (8')이 지지되는 지지편(9), (9')이 각각의 스크류(10), (10')에 나선 조립되게 설치하고, 상부거울(6)의 상부에는 고정지지편(11)에 나선 조립된 스크류(12)의 첨단이 상부거울(6)의 거울 고정대(13)와 접하게 설치하여 상부거울(6)의 힌지축(8), (8')을 중심으로 경사 조절되는 투과형 프로젝션 텔레비젼의 거울 반사각 조절장치.In the cabinet 1, the lens 3 and the lower mirror 4 are provided in front of the CRT 2, and the upper mirror 6 facing the lower mirror 4 is tilted at a predetermined inclination angle. The support pieces 9 and 9 'on which the hinge shafts 8 and 8' of both sides of the mirror 6 are supported are spirally mounted to the respective screws 10 and 10 ', and the upper mirror On the upper part of the hinge 6 of the upper mirror 6, the tip of the screw 12 spirally assembled on the fixed support piece 11 is installed in contact with the mirror holder 13 of the upper mirror 6, Mirror reflection angle adjusting device for transmission projection television tilted about 8 '.
KR2019850017838U 1985-12-27 1985-12-27 Mirror angle control device of projection tv KR910006467Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850017838U KR910006467Y1 (en) 1985-12-27 1985-12-27 Mirror angle control device of projection tv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850017838U KR910006467Y1 (en) 1985-12-27 1985-12-27 Mirror angle control device of projection tv

Publications (2)

Publication Number Publication Date
KR870011644U KR870011644U (en) 1987-07-18
KR910006467Y1 true KR910006467Y1 (en) 1991-08-23

Family

ID=19247627

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850017838U KR910006467Y1 (en) 1985-12-27 1985-12-27 Mirror angle control device of projection tv

Country Status (1)

Country Link
KR (1) KR910006467Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100662113B1 (en) * 2004-10-27 2006-12-27 엘지전자 주식회사 Projection television

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970057664A (en) * 1995-12-28 1997-07-31 김광호 Multi-channel Projection Liquid Crystal Projector
KR100422698B1 (en) * 2001-04-16 2004-03-12 엘지전자 주식회사 Apparatus for mirror fixation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100662113B1 (en) * 2004-10-27 2006-12-27 엘지전자 주식회사 Projection television

Also Published As

Publication number Publication date
KR870011644U (en) 1987-07-18

Similar Documents

Publication Publication Date Title
EP0605232B1 (en) Image projecting apparatus
KR910006467Y1 (en) Mirror angle control device of projection tv
JPS6076730A (en) Zoom lens barrel for variable power copying machine
KR20040003865A (en) Optical engine for projection television
US4168116A (en) Apparatus for optimizing camera image surface to image receiving surface
KR200148963Y1 (en) An apparatus for correcting mirror of rear projection type tv
US4863263A (en) Overhead projector
US4607924A (en) Video projector focus adjustment mechanism
KR100630936B1 (en) Apparatus For Distortion Correction In Projectors
JPH05224277A (en) Camera apparatus for electronic cinematograph
US5191478A (en) Zoom lens for video camera
JPS5917408B2 (en) Copier exposure optical system adjustment device
US5890019A (en) Optical axis angle variation mechanism optical axis angle variation apparatus and image stabilizer
KR100440751B1 (en) Apparatus for adjusting a focus of a projection lens
KR200155567Y1 (en) Apparatus for adjusting focus of projection television
KR830000378Y1 (en) Projection Television
JP3141183B2 (en) Image Sensor Position Adjustment Mechanism for Document Scanner
KR100219650B1 (en) Apparatus to control the center of lens unit for projector
US20040233550A1 (en) Adjustment mechanism for a binocular apparatus
JPH0534552A (en) Fitting device for read lens
JPH06141219A (en) Photographic lens for video camera
US5281994A (en) Mirror-holding device
KR100219647B1 (en) Apparatus to project images
KR940001286Y1 (en) View finder in camcorder
KR200209093Y1 (en) An apparatus for adjusiting optical axis in projector

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: 19991224

Year of fee payment: 10

EXPY Expiration of term