US20020024639A1 - CRT coupling apparatus of projection television - Google Patents
CRT coupling apparatus of projection television Download PDFInfo
- Publication number
- US20020024639A1 US20020024639A1 US09/725,176 US72517600A US2002024639A1 US 20020024639 A1 US20020024639 A1 US 20020024639A1 US 72517600 A US72517600 A US 72517600A US 2002024639 A1 US2002024639 A1 US 2002024639A1
- Authority
- US
- United States
- Prior art keywords
- crt
- bracket
- coupler
- lens
- spring wire
- 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.)
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Classifications
-
- 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
-
- 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
Definitions
- the present invention relates to a cathode ray tube (CRT) coupling apparatus of a projection television and, more particularly, to a CRT coupling apparatus of a projection television for coupling a CRT and a lens to a coupler.
- CRT cathode ray tube
- a projection television is an apparatus which uses a reflecting mirror to reflect a picture magnified and projected from a CRT assembly, and projects the picture onto the backplate of a screen placed in the faceplate of the body of the television.
- the CRT assembly is installed in the body, and forms and projects a picture.
- the CRT assembly includes a CRT for forming the picture, a coupler placed in the faceplate of the CRT, and a lens coupled to the coupler for magnifying the picture formed by the CRT and projecting it onto the screen.
- the CRT is coupled to the coupler using a CRT bracket and a spring wire.
- the spring wire is coupled to an earth plate formed by a plate spring which contacts the backplate of the CRT.
- a plurality of spacers is formed on the coupler. Bolts are locked into the spacers through through-holes formed on the CRT bracket, thus coupling the CRT to the coupler.
- the spring wire presses elastically against the backplate of the CRT in the direction of the coupler due to the locking of the bolts into the spacers.
- a lens bracket is coupled to the lens, and bolts which penetrate through through-holes formed on the lens bracket are locked to the spacers formed on the coupler. Sealing members are installed for sealing purposes once the CRT and the lens are coupled to the coupler.
- the structure described above requires a plurality of bolts for coupling the CRT and the lens to the coupler. This means that a plurality of spacers have to be formed on the coupler. Thus, the manufacturing process is complicated, many components are required, and the manufacturing cost is high.
- a CRT coupling apparatus of a projection television having an improved structure for coupling a CRT bracket and a lens bracket to a coupler with a spring wire, and using no bolts in the process.
- a CRT coupling apparatus of a projection television for coupling a CRT which forms a picture and a lens which magnifies the picture formed by the CRT and which projects the picture onto a screen.
- the CRT coupling apparatus comprises: a coupler placed between the CRT and the lens; a CRT bracket supporting the CRT; a lens bracket supporting the lens; and a spring wire with one side connected to a side of the CRT bracket facing away from the coupler and the other side connected to a side of the lens bracket facing away from the coupler.
- the spring wire couples the CRT bracket and the lens bracket to the coupler by applying elastic force in mutually approaching directions.
- FIG. 1 is a sectional view of a projection television
- FIG. 2 is a partial perspective view illustrating a CRT coupling apparatus of a projection television
- FIG. 3 is a partial perspective view illustrating a CRT coupling apparatus according to a preferred embodiment of the present invention
- FIG. 4 is a sectional view of the CRT assembly shown in FIG. 3;
- FIG. 5 is a partial perspective view illustrating an earth assembly part of the CRT assembly shown in FIG. 3.
- a projection television is an apparatus which has a body 1 , a reflecting mirror 2 , a screen 3 , and a CRT assembly 4 .
- a picture magnified and projected by CRT assembly 4 is reflected by reflecting mirror 2 , and is projected onto the backplate of screen 3 placed in the faceplate of body 1 .
- the CRT assembly 4 is installed in the body 1 , and forms and projects the picture.
- a CRT assembly 4 includes a CRT 10 for forming a picture, a coupler 20 placed in the faceplate of the CRT 10 , and a lens 30 coupled to the coupler 20 for magnifying the picture formed by the CRT 10 , and for projecting it onto the screen 3 (referring to FIG. 1).
- the CRT 10 is coupled to the coupler 20 using a CRT bracket 12 and a spring wire 14 .
- the spring wire 14 is coupled to an earth plate 15 formed by a plate spring which contacts the backplate 11 of the CRT 10 .
- a plurality of spacers 21 is formed on the coupler 20 .
- Bolts 17 are locked into the spacers 21 through through-holes 13 formed on the CRT bracket 12 , thus coupling the CRT 10 to the coupler 20 .
- the spring wire 14 presses elastically against the backplate 11 of the CRT 10 in the direction of the coupler 20 due to the locking action of bolts 17 .
- a lens bracket 32 is coupled to the lens 30 , and bolts 37 penetrate through through-holes 33 formed on the lens bracket 32 , and are locked to spacers 22 formed on the coupler 20 . Sealing members 19 and 39 are installed for sealing purposes once the CRT 10 and the lens 30 are coupled to the coupler 20 .
- the structure described above requires a plurality of bolts 17 and 37 to couple the CRT 10 and the lens 30 to the coupler 20 .
- the manufacturing process is complicated, many components are required, and the manufacturing cost is high.
- FIG. 3 is a partial perspective view illustrating a CRT coupling apparatus of a projection television according to a preferred embodiment of the present invention
- FIG. 4 is a sectional view of the CRT assembly shown in FIG. 3.
- FIG. 5 is a partial perspective view magnifying and illustrating an earth assembly part.
- a CRT coupling apparatus of a projection television includes: a coupler 52 placed between a CRT 50 and a lens 51 ; a CRT bracket 60 supporting the CRT 50 ; a lens bracket 70 supporting the lens 51 ; and a spring wire 80 in the shape of a loop for securing the CRT bracket 60 and the lens bracket 70 .
- the CRT 50 forms a picture
- the lens 51 magnifies the picture formed by the CRT 50 and projects it onto a screen 3 (FIG. 1).
- the coupler 52 is manufactured by press processing a thick aluminum or steel sheet, and includes a coolant container 521 which can hold coolant (C) in a sealed space which is formed by coupling the CRT 50 and the lens 51 .
- the CRT bracket 60 is placed on the backplate of the CRT 50 for coupling the CRT 50 to the coupler 52 , and bracket 60 wraps and supports the CRT 50 .
- the CRT bracket 60 is manufactured by press processing a thick metal sheet.
- bridging grooves 61 are formed so that both ends 81 of a spring wire 80 , which will be described later, can be inserted thereinto.
- An earth assembly is installed and is connected to a terminal 66 of an earth wire 65 in order to draw static electricity, generated in the CRT 50 , away from CRT assembly 100 .
- the earth assembly includes a supporting part 62 integrally formed with the CRT bracket 60 , and a ground contact part 63 which slides into, and couples to, the supporting part 62 .
- the supporting part 62 includes a center section 62 a having a groove 62 c , a step portion 62 d and an arch part 62 b .
- the arch part 62 b is spread like the center section 62 a before the spring wire 80 is coupled; however, after both ends 81 of the spring wire 80 are coupled to the bridging groove 61 , the arch part 62 b is bent in the shape of an arch, as shown in FIG. 5, to prevent the spring wire 80 from slipping out.
- the ground contact part 63 includes a sliding groove 63 a into which the center section 62 a is slid so as to be coupled thereto, a bridging groove 63 e into which the step portion 62 a is inserted and coupled, an elastic spacer 63 b coupled elastically to the groove 62 c , a terminal coupling part 63 c to which the terminal 66 is coupled, and a contact arm 63 d which contacts the backplate 50 a of the CRT 50 .
- the elastic spacer 63 b is elastically coupled to the groove 62 c
- the contact arm 63 d contacts the backplate 50 a of the CRT 50 . Accordingly, an earth line which passes through the contact arm 63 d , the terminal coupling part 63 c , the terminal 66 and the earth wire 65 is formed.
- the lens bracket 70 is formed to keep the lens 51 secured to the coupler 52 , while supporting the lens 51 .
- a thick metal sheet is press-processed, and a bridging sill 71 is formed to hook the spring wire 80 to both ends of the lens bracket 70 .
- the spring wire 80 includes a tension part 82 which is bent to apply pressure elastically to the CRT bracket 60 , and a coupling part 83 is inserted into the bridging sill 71 of the lens bracket 70 .
- the ends 81 are fixed together, and are inserted together into the bridging groove 61 of the CRT bracket 60 .
- the bent tension part 82 is spread by elastic deformation when the spring wire 80 is coupled to the CRT bracket 60 and the lens bracket 70 . Then, after completing the coupling, the backplate of the CRT bracket 60 is pressed toward the coupler 52 by the restoring force of the bent tension part 82 .
- the spring wire 80 is produced from a high elastic piano wire.
- a sealing member 53 is placed between the CRT 50 and the coupler 52 , and a sealing member 54 is placed between the lens 51 and the coupler 52 . These sealing members 53 and 54 prevent leakage of the coolant (C) in the coolant container 521 of the coupler 52 .
- the sealing member 53 and the CRT 50 are placed on the coupler 52 , with the CRT bracket 60 being installed on the backplate of the CRT 50 .
- the sealing member 54 , the lens 51 , and the lens bracket 70 are installed under the coupler 52 .
- a force is applied to the coupling part 83 by the spring wire 80 in the direction of the lens 51 , using a jig (not shown), so that the spring wire 80 becomes lodged in the bridging sill 71 of the lens bracket 70 .
- the CRT bracket 60 and the lens bracket 70 are each pressed toward the coupler 52 by the restoring force of the spring wire 80 .
- a restoring force generated by the sealing members 53 and 54 tends to push the CRT 50 and the lens 51 away from the coupler 52 , so that movement of the CRT bracket 60 and the lens bracket 70 against the coupler 52 is restrained.
- the sealing members 53 and 54 tightly seal the interfaces between the coupler 52 , the CRT 50 and the lens 51 so that the coolant (C) in the coolant container 521 does not leak.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
Description
- This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. §119 from my application CRT COUPLING APPARATUS OF PROJECTION TELEVISION filed with the Korean Industrial Property Office on Aug. 25, 2000 and there duly assigned Serial No. 49646/2000.
- 1. Technical Field
- The present invention relates to a cathode ray tube (CRT) coupling apparatus of a projection television and, more particularly, to a CRT coupling apparatus of a projection television for coupling a CRT and a lens to a coupler.
- 2. Related Art
- Generally, a projection television is an apparatus which uses a reflecting mirror to reflect a picture magnified and projected from a CRT assembly, and projects the picture onto the backplate of a screen placed in the faceplate of the body of the television. The CRT assembly is installed in the body, and forms and projects a picture.
- The CRT assembly includes a CRT for forming the picture, a coupler placed in the faceplate of the CRT, and a lens coupled to the coupler for magnifying the picture formed by the CRT and projecting it onto the screen.
- The CRT is coupled to the coupler using a CRT bracket and a spring wire. The spring wire is coupled to an earth plate formed by a plate spring which contacts the backplate of the CRT. A plurality of spacers is formed on the coupler. Bolts are locked into the spacers through through-holes formed on the CRT bracket, thus coupling the CRT to the coupler. The spring wire presses elastically against the backplate of the CRT in the direction of the coupler due to the locking of the bolts into the spacers.
- In addition, a lens bracket is coupled to the lens, and bolts which penetrate through through-holes formed on the lens bracket are locked to the spacers formed on the coupler. Sealing members are installed for sealing purposes once the CRT and the lens are coupled to the coupler.
- The structure described above requires a plurality of bolts for coupling the CRT and the lens to the coupler. This means that a plurality of spacers have to be formed on the coupler. Thus, the manufacturing process is complicated, many components are required, and the manufacturing cost is high.
- To solve the above problems, it is an object of the present invention to provide a CRT coupling apparatus of a projection television having an improved structure for coupling a CRT bracket and a lens bracket to a coupler with a spring wire, and using no bolts in the process.
- Accordingly, to achieve the above object, there is provided a CRT coupling apparatus of a projection television for coupling a CRT which forms a picture and a lens which magnifies the picture formed by the CRT and which projects the picture onto a screen. The CRT coupling apparatus comprises: a coupler placed between the CRT and the lens; a CRT bracket supporting the CRT; a lens bracket supporting the lens; and a spring wire with one side connected to a side of the CRT bracket facing away from the coupler and the other side connected to a side of the lens bracket facing away from the coupler. The spring wire couples the CRT bracket and the lens bracket to the coupler by applying elastic force in mutually approaching directions.
- A more complete appreciation of the invention, and many of the attendant advantages, thereof, will be readily apparent as the same becomes better understood by reference to the following detailed description when considered in conjunction with the accompanying drawings in which like reference symbols indicate the same or similar components, wherein:
- FIG. 1 is a sectional view of a projection television;
- FIG. 2 is a partial perspective view illustrating a CRT coupling apparatus of a projection television;
- FIG. 3 is a partial perspective view illustrating a CRT coupling apparatus according to a preferred embodiment of the present invention;
- FIG. 4 is a sectional view of the CRT assembly shown in FIG. 3; and
- FIG. 5 is a partial perspective view illustrating an earth assembly part of the CRT assembly shown in FIG. 3.
- Generally, referring to FIG. 1, a projection television is an apparatus which has a
body 1, a reflectingmirror 2, ascreen 3, and aCRT assembly 4. A picture magnified and projected byCRT assembly 4 is reflected by reflectingmirror 2, and is projected onto the backplate ofscreen 3 placed in the faceplate ofbody 1. TheCRT assembly 4 is installed in thebody 1, and forms and projects the picture. - As shown in FIG. 2, a
CRT assembly 4 includes aCRT 10 for forming a picture, acoupler 20 placed in the faceplate of theCRT 10, and alens 30 coupled to thecoupler 20 for magnifying the picture formed by theCRT 10, and for projecting it onto the screen 3 (referring to FIG. 1). - The CRT10 is coupled to the
coupler 20 using aCRT bracket 12 and aspring wire 14. Thespring wire 14 is coupled to anearth plate 15 formed by a plate spring which contacts thebackplate 11 of the CRT 10. A plurality ofspacers 21 is formed on thecoupler 20.Bolts 17 are locked into thespacers 21 through through-holes 13 formed on theCRT bracket 12, thus coupling theCRT 10 to thecoupler 20. Thespring wire 14 presses elastically against thebackplate 11 of the CRT 10 in the direction of thecoupler 20 due to the locking action ofbolts 17. - Also, a
lens bracket 32 is coupled to thelens 30, andbolts 37 penetrate through through-holes 33 formed on thelens bracket 32, and are locked tospacers 22 formed on thecoupler 20. Sealingmembers CRT 10 and thelens 30 are coupled to thecoupler 20. - The structure described above requires a plurality of
bolts CRT 10 and thelens 30 to thecoupler 20. This means that a plurality ofspacers coupler 20. Thus, the manufacturing process is complicated, many components are required, and the manufacturing cost is high. - FIG. 3 is a partial perspective view illustrating a CRT coupling apparatus of a projection television according to a preferred embodiment of the present invention, and FIG. 4 is a sectional view of the CRT assembly shown in FIG. 3. FIG. 5 is a partial perspective view magnifying and illustrating an earth assembly part.
- Referring to the drawings, a CRT coupling apparatus of a projection television according to a preferred embodiment of the present invention includes: a
coupler 52 placed between aCRT 50 and alens 51; aCRT bracket 60 supporting theCRT 50; alens bracket 70 supporting thelens 51; and aspring wire 80 in the shape of a loop for securing theCRT bracket 60 and thelens bracket 70. - The CRT50 forms a picture, and the
lens 51 magnifies the picture formed by the CRT 50 and projects it onto a screen 3 (FIG. 1). - The
coupler 52 is manufactured by press processing a thick aluminum or steel sheet, and includes acoolant container 521 which can hold coolant (C) in a sealed space which is formed by coupling theCRT 50 and thelens 51. - The
CRT bracket 60 is placed on the backplate of the CRT 50 for coupling the CRT 50 to thecoupler 52, andbracket 60 wraps and supports the CRT 50. TheCRT bracket 60 is manufactured by press processing a thick metal sheet. On both sides of theCRT bracket 60,bridging grooves 61 are formed so that bothends 81 of aspring wire 80, which will be described later, can be inserted thereinto. An earth assembly is installed and is connected to aterminal 66 of anearth wire 65 in order to draw static electricity, generated in theCRT 50, away fromCRT assembly 100. The earth assembly includes a supportingpart 62 integrally formed with theCRT bracket 60, and aground contact part 63 which slides into, and couples to, the supportingpart 62. The supportingpart 62 includes acenter section 62 a having agroove 62 c, astep portion 62 d and anarch part 62 b. Thearch part 62 b is spread like thecenter section 62 a before thespring wire 80 is coupled; however, after bothends 81 of thespring wire 80 are coupled to thebridging groove 61, thearch part 62 b is bent in the shape of an arch, as shown in FIG. 5, to prevent thespring wire 80 from slipping out. Also, theground contact part 63 includes asliding groove 63 a into which thecenter section 62 a is slid so as to be coupled thereto, abridging groove 63 e into which thestep portion 62 a is inserted and coupled, anelastic spacer 63 b coupled elastically to thegroove 62 c, aterminal coupling part 63 c to which theterminal 66 is coupled, and acontact arm 63 d which contacts thebackplate 50 a of theCRT 50. Thus, when thecenter section 62 a is coupled to thesliding groove 63 a, theelastic spacer 63 b is elastically coupled to thegroove 62 c, and thecontact arm 63 d contacts thebackplate 50 a of theCRT 50. Accordingly, an earth line which passes through thecontact arm 63 d, theterminal coupling part 63 c, theterminal 66 and theearth wire 65 is formed. - The
lens bracket 70 is formed to keep thelens 51 secured to thecoupler 52, while supporting thelens 51. In forminglens bracket 70, a thick metal sheet is press-processed, and abridging sill 71 is formed to hook thespring wire 80 to both ends of thelens bracket 70. - The
spring wire 80 includes atension part 82 which is bent to apply pressure elastically to theCRT bracket 60, and acoupling part 83 is inserted into the bridgingsill 71 of thelens bracket 70. The ends 81 are fixed together, and are inserted together into the bridginggroove 61 of theCRT bracket 60. Thebent tension part 82 is spread by elastic deformation when thespring wire 80 is coupled to theCRT bracket 60 and thelens bracket 70. Then, after completing the coupling, the backplate of theCRT bracket 60 is pressed toward thecoupler 52 by the restoring force of thebent tension part 82. Preferably, thespring wire 80 is produced from a high elastic piano wire. - A sealing
member 53 is placed between theCRT 50 and thecoupler 52, and a sealingmember 54 is placed between thelens 51 and thecoupler 52. These sealingmembers coolant container 521 of thecoupler 52. - The steps of assembling the CRT assembly of a projection television according to a preferred embodiment of the present invention will now be described.
- As shown in FIG. 3, the sealing
member 53 and theCRT 50 are placed on thecoupler 52, with theCRT bracket 60 being installed on the backplate of theCRT 50. The sealingmember 54, thelens 51, and thelens bracket 70 are installed under thecoupler 52. Then, after inserting both ends of thespring wire 80 into the bridginggrooves 61 of theCRT bracket 60, a force is applied to thecoupling part 83 by thespring wire 80 in the direction of thelens 51, using a jig (not shown), so that thespring wire 80 becomes lodged in the bridgingsill 71 of thelens bracket 70. - When a force is applied to the
spring wire 80 by the jig, thetension part 82 is elastically deformed, and the space between thetension part 82 and thecoupling part 83 is extended to a predetermined distance. Thus, thecoupling part 83 of thespring wire 80 is inserted into the bridgingsill 71 of thelens bracket 70, and the sealingmembers spring wire 80 in restraining theCRT 50 and thelens 51 from separating from thecoupler 52. - Once the jig is removed, the
CRT bracket 60 and thelens bracket 70 are each pressed toward thecoupler 52 by the restoring force of thespring wire 80. Also, a restoring force generated by the sealingmembers CRT 50 and thelens 51 away from thecoupler 52, so that movement of theCRT bracket 60 and thelens bracket 70 against thecoupler 52 is restrained. Moreover, the sealingmembers coupler 52, theCRT 50 and thelens 51 so that the coolant (C) in thecoolant container 521 does not leak. - Also, static electricity generated by the
CRT 50 is drawn away from theCRT assembly 100 and toward the outside by the earth assembly (supportingpart 62 and ground contact part 63) installed in theCRT bracket 60. - Thus, since the
CRT bracket 60 and thelens bracket 70 are fixed to thecoupler 52 by the elastic restoring force of thespring wire 80, it is not necessary to use an additional fastening member like a bolt, so that the number of components and the number of operation processes can be reduced. - It should be understood that the present invention is not limited to the particular embodiment disclosed herein as the best mode contemplated for carrying out the present invention, but rather that the present invention is not limited to the specific embodiments described in this specification except as defined in the appended claims.
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0049646A KR100370217B1 (en) | 2000-08-25 | 2000-08-25 | CRT coupling apparatus of projection television |
KR2000-49646 | 2000-08-25 | ||
KR00-49646 | 2000-08-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020024639A1 true US20020024639A1 (en) | 2002-02-28 |
US6412952B1 US6412952B1 (en) | 2002-07-02 |
Family
ID=19685224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/725,176 Expired - Fee Related US6412952B1 (en) | 2000-08-25 | 2000-11-29 | CRT coupling apparatus of projection television |
Country Status (3)
Country | Link |
---|---|
US (1) | US6412952B1 (en) |
KR (1) | KR100370217B1 (en) |
CN (1) | CN1233157C (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040041953A1 (en) * | 2002-08-31 | 2004-03-04 | Samsung Electronics, Ltd., Co. | Projection television |
US20040061840A1 (en) * | 2002-10-01 | 2004-04-01 | Hitachi Electronic Devices (Usa), Inc. | Projection coupler with contrast ribs |
US20040114058A1 (en) * | 2002-12-16 | 2004-06-17 | Samsung Electronics Co., Ltd. | Projection television |
US20050063073A1 (en) * | 2003-09-19 | 2005-03-24 | Glassburn Robin S. | Lens assembly with integrated focus mount and CRT coupler |
US20050243221A1 (en) * | 2004-05-03 | 2005-11-03 | Meiser Daniel G | Lens and CRT assembly and method of manufacture |
US7011416B2 (en) | 2002-08-31 | 2006-03-14 | Samsung Electronics Co., Ltd. | Projection television |
US20060181654A1 (en) * | 2002-12-23 | 2006-08-17 | Samsung Electronics Co., Ltd. | Projection television |
US20160116730A1 (en) * | 2014-10-28 | 2016-04-28 | Burle Technologies, Llc | Optical Alignment System |
Families Citing this family (7)
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US20020191121A1 (en) * | 2001-06-16 | 2002-12-19 | Koninklijke Philips Electronics, N.V. | Spring bracket for mounting cathode ray tubes in projection television devices |
JP4191527B2 (en) * | 2002-12-11 | 2008-12-03 | 株式会社オートネットワーク技術研究所 | Peripheral visual recognition device for vehicles |
JP3953415B2 (en) * | 2002-12-12 | 2007-08-08 | 三菱電機株式会社 | Connecting device and connecting method |
CN100433815C (en) * | 2004-01-23 | 2008-11-12 | 巴兹尔·诺曼·弗里曼 | Apparatus for supporting an audio/video system which includes a thin screen video display unit |
KR100672507B1 (en) * | 2004-05-20 | 2007-01-24 | 엘지전자 주식회사 | Coupler structure for crt projection tv |
KR100863837B1 (en) * | 2006-06-23 | 2008-10-15 | 엘지전자 주식회사 | Prism and Prism fixing structure of an optical engine |
KR101195522B1 (en) | 2011-04-25 | 2012-10-30 | (주)아성화학 | Roller shaft feeding device generating for extrusion torque |
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JP2839297B2 (en) * | 1989-10-02 | 1998-12-16 | 株式会社シマノ | Automatic shear control device for fishing reels |
KR910009584A (en) * | 1989-11-10 | 1991-06-28 | 고영일 | Lightweight Mortar Composition |
JP3271280B2 (en) * | 1991-12-18 | 2002-04-02 | ソニー株式会社 | Cathode ray tube device for projector device |
JPH05341167A (en) * | 1992-06-08 | 1993-12-24 | Matsushita Electric Ind Co Ltd | Lens holding member and formation of thin film |
JPH0630365A (en) * | 1992-07-06 | 1994-02-04 | Hitachi Ltd | Projection display device |
US5812215A (en) * | 1994-06-13 | 1998-09-22 | Mitsubishi Denki Kabushiki Kaisha | Projector display unit |
DE19615533A1 (en) * | 1996-04-19 | 1997-10-23 | Basf Ag | Thermoplastic molding compound |
KR20000012918A (en) * | 1998-08-03 | 2000-03-06 | 이종구 | Spindle for pirn winder |
KR100353180B1 (en) * | 1998-08-13 | 2002-12-11 | 닛코킨조쿠 가부시기가이샤 | Electrical contact device of electrolyzer |
KR20000012918U (en) * | 1998-12-22 | 2000-07-15 | 윤종용 | Projection TV's Cititi Fixture |
-
2000
- 2000-08-25 KR KR10-2000-0049646A patent/KR100370217B1/en not_active IP Right Cessation
- 2000-11-16 CN CNB001329545A patent/CN1233157C/en not_active Expired - Fee Related
- 2000-11-29 US US09/725,176 patent/US6412952B1/en not_active Expired - Fee Related
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7011416B2 (en) | 2002-08-31 | 2006-03-14 | Samsung Electronics Co., Ltd. | Projection television |
US20040041953A1 (en) * | 2002-08-31 | 2004-03-04 | Samsung Electronics, Ltd., Co. | Projection television |
US7176986B2 (en) | 2002-08-31 | 2007-02-13 | Samsung Electronics Co., Ltd. | Projection television |
US20040061840A1 (en) * | 2002-10-01 | 2004-04-01 | Hitachi Electronic Devices (Usa), Inc. | Projection coupler with contrast ribs |
US20040080724A1 (en) * | 2002-10-01 | 2004-04-29 | Hitachi Electronic Devices (Usa), Inc. | Projection coupler with dual channel sealing mechanism |
US6871962B2 (en) | 2002-10-01 | 2005-03-29 | Hitachi Electronic Devices, Inc. | Projection coupler with dual channel sealing mechanism |
US7045936B2 (en) | 2002-10-01 | 2006-05-16 | Hitachi Electronic Devices (Usa), Inc. | Projection coupler with contrast ribs |
US20040114058A1 (en) * | 2002-12-16 | 2004-06-17 | Samsung Electronics Co., Ltd. | Projection television |
US20060181654A1 (en) * | 2002-12-23 | 2006-08-17 | Samsung Electronics Co., Ltd. | Projection television |
US6922295B2 (en) | 2003-09-19 | 2005-07-26 | 3M Innovative Properties Company | Lens assembly with integrated focus mount and CRT coupler |
US20050063073A1 (en) * | 2003-09-19 | 2005-03-24 | Glassburn Robin S. | Lens assembly with integrated focus mount and CRT coupler |
WO2005112445A1 (en) * | 2004-05-03 | 2005-11-24 | 3M Innovative Properties Company | Television projector with lens and ctr assembly and mounting method thereof |
US20050243221A1 (en) * | 2004-05-03 | 2005-11-03 | Meiser Daniel G | Lens and CRT assembly and method of manufacture |
US20160116730A1 (en) * | 2014-10-28 | 2016-04-28 | Burle Technologies, Llc | Optical Alignment System |
US10234674B2 (en) * | 2014-10-28 | 2019-03-19 | Photonis Defense, Inc. | Optical alignment system |
Also Published As
Publication number | Publication date |
---|---|
KR20020016360A (en) | 2002-03-04 |
CN1340966A (en) | 2002-03-20 |
US6412952B1 (en) | 2002-07-02 |
CN1233157C (en) | 2005-12-21 |
KR100370217B1 (en) | 2003-01-29 |
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