KR200203879Y1 - Lamp combination structure of backlight for liquid crystal projector - Google Patents
Lamp combination structure of backlight for liquid crystal projector Download PDFInfo
- Publication number
- KR200203879Y1 KR200203879Y1 KR2019950035523U KR19950035523U KR200203879Y1 KR 200203879 Y1 KR200203879 Y1 KR 200203879Y1 KR 2019950035523 U KR2019950035523 U KR 2019950035523U KR 19950035523 U KR19950035523 U KR 19950035523U KR 200203879 Y1 KR200203879 Y1 KR 200203879Y1
- Authority
- KR
- South Korea
- Prior art keywords
- lamp
- ceramic base
- backlight
- liquid crystal
- ceramic
- 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.)
- Expired - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 41
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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
- G03B21/20—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
- G03B21/28—Reflectors in projection beam
-
- 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]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Geometry (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
액정 프로젝터의 백라이트에서, 내면이 포물선면을 이루고 있는 반사경의 촛점 위치에 램프를 위치시키기 위하여 램프가 삽입 결합되는 세라믹 베이스와 이 세라믹 베이스의 일측을 서로 맞물리게 테이핑 가공하여, 각 부품을 결합시키면 자동적으로 램프가 촛점 위치에 오게 하였다.In the backlight of the liquid crystal projector, a tape is machined to interlock with one side of the ceramic base into which the lamp is inserted and one side of the ceramic base are interlocked with each other in order to position the lamp at a focal point of a reflector whose inner surface is a parabolic surface. The lamp was brought to the focal position.
Description
제1도는 본 고안의 실시예에 따른 백 라이트의 분해 단면도이고,1 is an exploded cross-sectional view of a backlight according to an embodiment of the present invention,
제2도는 본 고안의 실시예에 따른 백 라이트의 조립 단면도이며,2 is an assembled cross-sectional view of the backlight according to the embodiment of the present invention,
제3(a),(b)도는 종래의 백 라이트의 분해 단면도 및 조립 단면도이다.3 (a) and 3 (b) are exploded sectional views and assembly sectional views of a conventional backlight.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 반사경 3 : 램프1: reflector 3: lamp
5 : 세라믹 베이스 7 : 세라믹 링5: ceramic base 7: ceramic ring
9 : 관통홀9: through hole
[고안의 상세한 설명][Detailed Description of Design]
[산업상의 이용 분야][Industrial use]
본 고안은 액정 프로젝터용 백 라이트(Back Light)의 램프 결합 구조에 관한 것이다.The present invention relates to a lamp coupling structure of the back light (Back Light) for the liquid crystal projector.
[종래 기술][Prior art]
일반적으로, 액정 프로젝터에 사용되는 백 라이트는 제3(a),(b)도에 도시된 바와 같이, 내면이 포물선면을 이루고 있어 집광 효과를 가지는 반사경(11)과, 이 반사경(11)의 포물선면의 촛점 위치에 장착되어 있어 상기 반사경(11)에 의해 반사된 빛이 그 중심선과 평행하게 조사하도록 되어 있는 램프(13)로 이루어진다.In general, the backlight used in the liquid crystal projector includes a reflector 11 having a light converging effect due to a parabolic surface, as shown in FIGS. 3A and 3B. It consists of a lamp 13 mounted at the focal point of the parabolic surface so that the light reflected by the reflector 11 is irradiated in parallel with its center line.
상기 반사경(11)의 중심부에는 램프(13)가 삽입 고정되는 원통형의 관통홀(19)이 외부로 돌출 형성되어 있다. 상기 램프(13)의 장착은 원통링의 형상을 가지는 세라믹 베이스(15)와 이 세라믹 베이스(15)에 끼워지며 상기 반사경(13)의 관통홀(19)외 외측에 고정되는 세라믹 링(17)에 의해서 이루어 진다.In the center of the reflector 11, a cylindrical through hole 19 into which the lamp 13 is inserted and fixed is formed to protrude outward. The lamp 13 is mounted on a ceramic base 15 having a cylindrical ring shape, and a ceramic ring 17 fitted to the ceramic base 15 and fixed to the outside of the through hole 19 of the reflector 13. Is done by
따라서, 종래에는 램프(13)가 반사경(11) 내면의 촛점 위치에 오도록 하기 위하여 램프(13)가 소정의 깊이로 고정되어 있는 세라믹 베이스(15)를 전후 방향으로 움직이면서 램프로 부터 반사경(11)에 반사되어 스크린 상에 조사된 화면을 보고 그 촛점 위치를 결정하였다.Accordingly, in order to bring the lamp 13 to the focus position on the inner surface of the reflector 11, the reflector 11 is moved from the lamp while moving the ceramic base 15 having the lamp 13 fixed to a predetermined depth in the front-rear direction. The screen was reflected on and irradiated on the screen to determine its focus position.
[고안이 해결하고자 하는 문제점][Problem to solve]
따라서, 램프가 반사경 내면의 촛점 위치에 오도록 장착시키는 것이 불편하고 시간도 많이 걸렸다.Therefore, it was inconvenient and time-consuming to mount the lamp so that it was in focus position on the inner surface of the reflector.
[문제점을 해결하기 위한 수단][Means to solve the problem]
상기와 같은 문제점을 해결하기 위하여, 본 고안은 램프와, 상기 램프의 일측이 소정의 깊이로 삽입 결합되는 원통링의 형상을 가지는 세라믹 베이스와, 내면이 포물선면으로 되어 있으며 중심부에 외부로 돌출된 원통형의 관통홀이 형성되어, 상기 램프와 결합된 세라믹 베이스가 삽입되는 반사경과, 상기 관통홀에 삽입되지 않는 세라믹 베이스의 부분과 상기 관통홀의 외측과 결합되는 세라믹 링을 포함하는 액정 프로젝터의 백라이트에 있어서, 상기 세라믹 베이스의 외주면과 상기 세라믹 링의 내주면이 테이핑 가공되어 서로 맞물리게 결합되는 것을 특징으로 하는 액정 프로젝터용 백 라이트의 램프 결합 구조를 제공한다.In order to solve the above problems, the present invention is a lamp, a ceramic base having a shape of a cylindrical ring in which one side of the lamp is inserted and coupled to a predetermined depth, the inner surface is a parabolic surface and protrudes outward in the center A cylindrical through hole is formed in the backlight of the liquid crystal projector including a reflector into which the ceramic base coupled to the lamp is inserted, a portion of the ceramic base not inserted into the through hole, and a ceramic ring coupled to the outside of the through hole. In the present invention, the outer peripheral surface of the ceramic base and the inner peripheral surface of the ceramic ring are taped to provide a lamp coupling structure of the backlight for the liquid crystal projector, characterized in that coupled to each other.
[작용][Action]
따라서, 램프가 소정의 깊이로 제한되어 세라믹 베이스에 삽입 결합되고, 이 세라믹 베이스의 테이핑 가공 부분과 세라믹 링의 테이핑 가공 부분이 서로 맞물려 결합되므로 세라믹 링이 결합턱의 구실을 하여 세라믹 베이스가 반사경의 관통홀에 삽입 결합시 결합되는 깊이가 램프가 촛점 위치에 오도록 제한된다.Therefore, the lamp is limited to a predetermined depth and inserted and coupled to the ceramic base, and the taping portion of the ceramic base and the taping portion of the ceramic ring are engaged with each other and engaged so that the ceramic ring serves as a joining jaw so that the ceramic base is formed of the reflector. The depth that is engaged when inserting into the through hole is limited so that the lamp is in the focal position.
[실시예]EXAMPLE
본 고안의 바람직한 실시예를 첨부한 도면을 참조하여 설명하면 다음과 같다.Referring to the accompanying drawings, preferred embodiments of the present invention are as follows.
제1도와 제2도에 도시된 바와 같이, 본 고안의 실시예에 따른 액정 프로젝터의 백 라이트는, 램프(3)와, 상기 램프(3)의 일측이 소정의 깊이로 삽입 결합되는 원통링의 형상을 가지는 세라믹 베이스(5)와, 내면이 포물선면으로 되어 있으며 중심부에 외부로 돌출된 원통형의 관통홀(9)이 형성되어, 상기 램프(3)와 결합된 세라믹 베이스(5)가 삽입되는 반사경(1)과, 상기 관통홀(9)에 삽입되지 않는 세라믹 베이스(5)외 부분과 상기 관통홀(9)의 외측과 결합되는 세라믹 링(7)을 포함하며, 상기 세라믹 베이스(5)의 외주면과 상기 세라믹 링(7)의 내주면이 테이핑 가공되어 서로 맞물리게 결합된다.As shown in FIG. 1 and FIG. 2, a backlight of a liquid crystal projector according to an embodiment of the present invention includes a lamp 3 and a cylindrical ring in which one side of the lamp 3 is inserted and coupled to a predetermined depth. A ceramic base 5 having a shape and a cylindrical through hole 9 protruding outward from the inner surface of the ceramic base 5 having a parabolic surface are inserted into the ceramic base 5 coupled to the lamp 3. A reflector 1, a portion outside the ceramic base 5 that is not inserted into the through hole 9, and a ceramic ring 7 coupled to the outside of the through hole 9, wherein the ceramic base 5 The outer circumferential surface of the inner ring and the inner circumferential surface of the ceramic ring 7 are tapered to be engaged with each other.
상기와 같은 액정 프로젝터의 백 라이트에 있어서, 램프(3)가 반사경(1)의 포물선면을 이루는 내면의 촛점 위치에 오도록 하기 위해서는, 먼저, 소정의 크기를 갖는 세라믹 베이스(5)에 램프(3)의 일측이 소정의 깊이만큼 삽입 결합시킨다.In the backlight of the liquid crystal projector as described above, in order for the lamp 3 to be in the focal position of the inner surface constituting the parabolic surface of the reflector 1, the lamp 3 is first applied to the ceramic base 5 having a predetermined size. One side of) is inserted into a predetermined depth.
이때, 삽입되는 깊이는 상기 세라믹 베이스(5)를 반사경(1)의 관통홀(9)에 삽입 결합시 램프(3)가 반사경(1) 내면의 촛점 위치에 오도록 미리 결정되어 있다.At this time, the insertion depth is predetermined so that the lamp 3 is at the focal position of the inner surface of the reflector 1 when the ceramic base 5 is inserted into and coupled to the through hole 9 of the reflector 1.
마찬가지로, 상기 세라믹 베이스(5)가 반사경(1)의 관통홀(9)에 삽입 결합되는 깊이도 세라믹 베이스(5)의 길이 및 그 일측이 세라믹 링(7)의 내면과 맞물리도록 그 외면에 형성된 테이핑 가공 부분에 의해서 결정되어 있다.Similarly, the depth at which the ceramic base 5 is inserted into and coupled to the through hole 9 of the reflector 1 is also formed on the outer surface such that the length of the ceramic base 5 and one side thereof are engaged with the inner surface of the ceramic ring 7. It is determined by the taping part.
이 세라믹 베이스(5)의 테이핑 가공 부분 및 반사경(1)의 관통홀(9)의 외측과 결합되도록 내면이 테이핑 가공되어 있는 세라믹 링(7)에 의해서, 램프(3)의 위치가 반사경(1) 내면의 촛점 위치에 오게 되는 것이다.The position of the lamp 3 is reflected by the ceramic ring 7 in which the inner surface is tapered so as to be engaged with the tapered portion of the ceramic base 5 and the outside of the through hole 9 of the reflector 1. ) Will be in the inner focus position.
[고안의 효과][Effect of design]
따라서, 반사경 내면의 촛점 위치에 램프가 위치하도록 하기 위하여 스크린을 보면서 확인하는 과정 없이 단지 각 구성 부품들(반사경, 램프, 세라믹 베이스, 세라믹 링)을 결합시킴으로서, 자동적으로 램프가 반사경 내면의 촛점 위치에 오게 되므로 편리하고 조립 시간도 단축된다.Thus, by simply combining the individual components (reflectors, lamps, ceramic bases, ceramic rings) without having to look and check the screen to ensure that the lamp is positioned at the focal point of the inner surface of the reflector, the lamp is automatically placed in the focal position of the inner surface of the reflector. It is convenient to use and shorten the assembly time.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950035523U KR200203879Y1 (en) | 1995-11-24 | 1995-11-24 | Lamp combination structure of backlight for liquid crystal projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950035523U KR200203879Y1 (en) | 1995-11-24 | 1995-11-24 | Lamp combination structure of backlight for liquid crystal projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970026323U KR970026323U (en) | 1997-06-20 |
| KR200203879Y1 true KR200203879Y1 (en) | 2000-12-01 |
Family
ID=19430265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950035523U Expired - Lifetime KR200203879Y1 (en) | 1995-11-24 | 1995-11-24 | Lamp combination structure of backlight for liquid crystal projector |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200203879Y1 (en) |
-
1995
- 1995-11-24 KR KR2019950035523U patent/KR200203879Y1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR970026323U (en) | 1997-06-20 |
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