MXPA04010510A - Method and apparatus for a light weight enclosure for projection televisions. - Google Patents

Method and apparatus for a light weight enclosure for projection televisions.

Info

Publication number
MXPA04010510A
MXPA04010510A MXPA04010510A MXPA04010510A MXPA04010510A MX PA04010510 A MXPA04010510 A MX PA04010510A MX PA04010510 A MXPA04010510 A MX PA04010510A MX PA04010510 A MXPA04010510 A MX PA04010510A MX PA04010510 A MXPA04010510 A MX PA04010510A
Authority
MX
Mexico
Prior art keywords
enclosure
cabinet
floor interface
deployment device
perimeter
Prior art date
Application number
MXPA04010510A
Other languages
Spanish (es)
Inventor
Kenneth Jacobs Neal
Original Assignee
Thomson Licensing Sa
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 Thomson Licensing Sa filed Critical Thomson Licensing Sa
Publication of MXPA04010510A publication Critical patent/MXPA04010510A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141Constructional details thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/74Projection arrangements for image reproduction, e.g. using eidophor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

A projection display apparatus includes a plastic upper cabinet (300) including a display device in optical cooperation with a reflection means, the plastic upper cabinet (300) having a bottom perimeter substantially conforming to a top perimeter of a plastic lower cabinet (400), and the plastic lower cabinet (400) including an optics frame (500) for supporting optical components, the second cabinet (400) comprising an enclosure (403) for inserting the optics frame (500) such that the optics frame (500) fits snugly into the enclosure (403) increasing the rigidity of the second cabinet (400), the plastic lower cabinet (400) having a bottom perimeter substantially conforming to a top perimeter of a plastic floor interface (600), the plastic upper cabinet (300) and the plastic lower cabinet (400) being separately formed and detachably attached.

Description

METHOD AND APPARATUS FOR A LIGHTWEIGHT FOR PROJECTION TELEVISION CROSS REFERENCE WITH RELATED APPLICATIONS This application claims the benefit of United States Provisional Application No. 60 / 376,098, filed in the United States on April 26, 2002.
FIELD OF THE INVENTION This invention relates to the field of television enclosures and more specifically, to cabinets for projection televisions.
BACKGROUND OF THE INVENTION Projection televisions comprise a cabinet containing a video projector and a video screen optionally aligned with one or more mirrors. Such cabinets are typically very large and very heavy and the different optical elements enclosed in it must be carefully aligned. When the elements of a particular projector and the mirrors inside the cabinet move relative to the screen, the image will be poor because the convergence that results in a color collision is destroyed. Typically, projection television cabinets are composed of a combination of wood, metal and plastic that form a large volume that inherently resists the forces of misalignment. In general, the metal is of high resistance to bending which is resistant to distortion. For example, a projection television 100 as shown in Figure 1 has a configuration, where wood plate materials are used. The plate materials are formed as a box, which comprises a main body portion 120 and a lower cabinet 170. A screen mounting structure 140 is mounted on the front of the main body portion 120 to install the screen 130. A mirror mounting enclosure 160 is mounted on the back of the main body portion 120 to install the mirror 150 The lower cabinet 170 is adapted to contain video devices and electronic components. The size of the main body portion 120 and the total size of the television including the mirror mounting portion 160 is determined by the size of the projection screen to be used. Each part of the housing is formed with a size and dimensional accuracy originally designed to provide a single housing that depends on the size of the projection screen. As a result, such parts are not compatible with another size of projection screens. A projection television 200 shown in Figure 2 has a configuration in which a metal structure 280 in a predetermined shape is placed in a lower cabinet 270. A screen mounting structure 240 that includes the screen 230 and a mirror mounting enclosure 260 includes a mirror 250, are mounted in an integrated manner to enclose the structure 280. In the projection television 200 of Figure 2, the structure 280 metal used is designed as a housing of a size in accordance with the size of the projection screen.
As a result, there is no compatibility with other projection screen sizes. The use of wood and bending resistant metal to form cabinets for projection televisions is considered necessary to achieve a level of rigidity that allows projection televisions to be delivered to the client without damage to image quality due to boarding and handling.
Unfortunately, the use of wood and metal results in cabinets that are heavy, expensive and lack compatibility with the different sizes of the projection screen.
BRIEF DESCRIPTION OF THE INVENTION The invention comprises a method and apparatus for an interchangeable light enclosure for deployment devices such as projection televisions. The enclosure in accordance with the principles of the invention includes upper and lower cabinets, which engage releasably. The lower cabinet, which is supported by a floor interface, supports the upper cabinet and includes an enclosure for inserting an optical structure. The optical structure supports the optical components to present images or video signals. For the enclosure to be lightweight, the lower enclosure can be made of a material of high resistance to bending that is normally light in weight. However, the optical structure is made of a material with greater resistance to bending (such as steel) and the enclosure is designed so that the optical structure is inserted, the optical structure prevents the side walls of the lower enclosure move one in relation to the other, which imparts rigidity to the lower cabinet. In one embodiment, the upper and lower cabinets and the floor interface are made of plastic. The upper cabinet has a locator that matches the locator in the lower cabinet, so that the lower cabinet restricts the lateral movements of the upper cabinet. In another embodiment, a projection deployment apparatus includes an upper plastic enclosure that includes a deployment device in optical cooperation with a reflective means, the upper plastic enclosure has a lower perimeter that essentially conforms to an upper perimeter of the lower enclosure plastic and the lower plastic enclosure includes an optical structure to support the optical components, the lower plastic enclosure comprises an enclosure for inserting the optical structure so that the optical structure fits tightly within the enclosure, which increases the rigidity of the lower plastic cabinet, the lower plastic cabinet has a lower perimeter which essentially conforms to the upper perimeter of the plastic floor interface, the upper plastic cabinet and the lower plastic cabinet are formed separately and are coupled in a removable.
BRIEF DESCRIPTION OF THE DRAWINGS The teachings of the present invention can be easily understood by considering the following detailed description together with the accompanying drawings, in which: Figure 1 illustrates an exploded perspective view of a typical wooden structure cabinet for a projection television. Figure 2 illustrates an exploded perspective view of a typical metal frame cabinet for a projection television. Figure 3 illustrates an isometric exploded view of an embodiment of a projection television enclosure in accordance with the present invention. Figure 4 illustrates an exploded front view of a projection television enclosure of Figure 3. Figure 5 illustrates an exploded side view of a projection television enclosure of Figure 3. Figure 6 illustrates a top view in exploded view of a projection television enclosure of Figure 3.
Figure 7 illustrates a top view and a bottom view of a lower cabinet of the projection television enclosure of Figure 3; and Figure 8 illustrates an exploded view of a splice between a circular bag of an upper cabinet and a circular bag of a lower cabinet of the projection television enclosure of Figure 3. For ease of understanding, identical reference numbers were used. where it was possible to point out identical elements that are common in the Figures.
DETAILED DESCRIPTION OF THE INVENTION The present invention will be described within the context of a rear projection television and its associated devices. However, persons skilled in the art will be able to recognize that the present invention can be applied with advantage in any projection television, or generically deployment device with the use of projection techniques. Thus, the inventors contemplate that the present invention has wide application beyond the rear projection television system described herein. The invention can be used to provide an interchangeable, stable, lightweight enclosure for rear and front projection televisions or display devices of varied screen sizes.
The projection television enclosure of the present invention will be described with reference to Figures 3 through 8, where elements with common reference numbers are included. The projection television enclosure includes a top 300 enclosure, a bottom enclosure 400, and a floor 600 interface. In addition, an optical structure 500 is illustrated in the projection television enclosure of the present invention, to support all the optics required for a rear projection television, excluding the screen and a mirror that are provided in the upper enclosure 300. . The optical structure 500 is configured in the form of a cartridge as an assembly and inserted into the lower structure 400 to provide rigidity to the lower structure 400. The upper cabinet 300, the lower cabinet 400 and the floor interface 600 are formed independently. Although the floor interface 600 of the projection television enclosure illustrated in Figures 1 through 8 is shown as a separate component, the floor interface 600 can advantageously be implemented as integrated essentially within the lower enclosure 400. The components of the projection television enclosure of Figures 1 to 8 are formed in such a way that the lower enclosure 400 is assembled on the floor interface 600 and in turn, the upper enclosure 300 is mounted on the lower enclosure assembly 400 and the floor 600 interface. This allows, with advantage, that the screen size of the upper case 300 can be arbitrarily selected with respect to the lower case 400. That is, a top 300 cabinet of any screen size, for example, 93.98 cm, 127 cm or more can be used with a common bottom 400 cabinet. This is achieved by forming a lower wall of the upper cabinet 300 with an essentially similar geometrical design with respect to the coupling and the mounting components, for all the upper cabinets of different sizes of screens. As such, the length of the lower case 400 on the side of the screen may be different from that of the upper case 300. Preferably, the lower cabinet 400 is first made of a smaller screen size, such as 93.98 cm, so that the lower cabinet 400 has the length of approximately the smallest screen size on the screen side, i.e., approximately the same length as the top 300 cabinet made for the smaller screen size. For other screen sizes, therefore, the length of the upper case 300 on the side of the screen is longer than the lower case 400. Of course, depending on the variety of screen sizes to be supported, one can select a size in the lower cabinet that is larger than that needed for the smaller screen size, so that the same lower cabinet 400 can be used to the largest screen size. In this case, the length of the upper case 300 on the side of the screen may be smaller than the lower case 400. This makes it possible to manufacture projection televisions with different sizes easily just by changing the upper 300 cabinet. In addition, the upper cabinet 300, the lower cabinet 400 and the floor interface 600 are manufactured with the advantage of a lightweight material with the ability to be produced on a large scale. The light material reduces the passage of the projection television enclosure and its simplicity in manufacturing decreases the time and costs associated with the projection television enclosure. In the Figures presented here, the light material is plastic and the manufacturing process is injection molding. Various plastics are known to those skilled in the art. However, the light material is not limited to plastics, other materials such as aluminum can be used. The upper cabinet 300 provides an enclosure for a display device in optical cooperation with a reflector means for locating an image from the optical image-forming means of the projection television. In one embodiment of the invention, the display device is a screen and the reflector means is a mirror that cooperates to locate the image on a screen. The upper cabinet 300 is formed with a portion 302 of rectangular structure on the front side thereof. The upper cabinet 300 is formed by an upper wall 304, two lateral walls 306! 3062 (collectively, side walls 306), a rear wall 308, a lower box-shaped wall 310 as a whole, with an open front face. The lower wall 310 is formed with an opening, which is confronted with a projection lens and assembled with the lower cabinet 400. The upper wall 304, the two side walls 306 and the lower wall 310 are bell-shaped to the front side as a whole, to accommodate larger screens and mirrors. The lower wall 310 is formed with two flanges (overlapping walls 312i and 3122 (collectively flanges 312) running along the length of the two walls 306 inside the upper cabinet 300. The flanges 312 are used to couple the cabinet 300 upper with the lower cabinet 400. Specifically, the flanges 312 of the upper cabinet 300 coincide with shoulders 412, described below, in the lower cabinet 400. Each of the shoulders 312 formed with a front face 313i and 3132 (collectively front faces). 313), each containing a circular bag 314t and 3142 (collectively circular bags 314) disposed therein The circular bags 314 coincide with two circular bags 422 described below, in the lower cabinet 400. The upper cabinet 300 also includes a central "spine" 320. The central spine 320 is formed as part of the lower wall 310. The central spine 320 assists in the mechanical coupling between the upper case 300 and the lower case 400 to provide greater strength and stability for the enclosure. The central spine 320 also improves the strength and stability of the enclosure by transferring the load from the upper part of the upper enclosure 300 to the more stable base of the upper enclosure 300. The central spine 320 is formed with a leading edge 321, two screw holes 322-, and 3222 (collectively screw holes 322), and two screw mounting tabs 323 ^ and 3232 (collectively screw mounting tabs 323) together with the front face of the central spine 320. The front flange 321 on the central spine 320 coincides with a shoulder 410, described later, in the lower case 400. The two screw holes 322 coincide with the screw holes 414 in the rear wall 416, described below, of the lower cabinet 400. The two screw mounting tabs 323 coincide with the holes 418 in the rear wall 416, described below, of the lower cabinet 400. It will be appreciated by persons skilled in the art that various combinations of ridges, flanges, screw mounting tabs, and screw holes may be formed in the upper case 300 to mount the upper case 300 with the lower case 400. An important aspect is that a substantial portion of the lower perimeter of the lower cabinet 300 can be supported by the lower cabinet 400 so that the load of the upper cabinet 300 is supported in a stable manner by the lower cabinet 400. In this way, fastening accessories (eg, screws, bolts, adjusting screws, etc.) are used to hold the upper case 300 with the lower case 400 so that they do not experience excessive loading or tension. All the optics required for a rear projection television are provided in an optical structure 500 in the lower cabinet 400, which excludes the screen and a mirror that are provided in the upper cabinet 300 as described above. The optical structure 500 is configured in the form of a cartridge as an assembly that can be easily replaced on the front side. The optical structure 500 is formed with two plates 502! and 5022 metal sheet end (collectively 502 end plates) and two 510 rails! and 5102 sheet metal (collectively 510 rails). In this way, in this embodiment, the optical structure 500 is stronger and more rigid than the lower case 400, which is made of plastic. The end plates 502 and the rails 510 support the optronics, which produce the image. Each end plate 502 is formed with an upper edge, collectively 506, and a lower fold, collectively 520. The two upper edges 506 coincide with the two shoulders 424 of projecting blocks 431, described below, in the lower case 400. This overlap allows the optical structure 500 to prevent the upper portion of the side walls 404 of the lower cabinet 400 from moving toward each other. The two lower folds 520 coincide with two lugs 426, described below, in the lower cabinet 400. A front edge 503 of each end plate 502 coincides with two side faces 428 of the projecting blocks 438, described below, for centering the optical structure 500 in the lower case 400 for installation. The matching of the projecting blocks 438 and the end plates allows the optical structure 500 to prevent the lower portion of the side walls 404 of the lower cabinet 400 from moving with respect to each other. The upper part of the trailing edge of each end plate 502 is formed with a screw mounting tab, collectively 504. The two screw mounting tabs 504 coincide with the two screw holes 430 in the projecting blocks 431, described later, in the lower cabinet 400. The trailing edge of each lower fold 520 is also formed with a screw mounting tab, collectively screw mounting tabs 521. The two screw mounting tabs 521 coincide with two screw holes 432, described below, in the lower case 400. When the optical structure 500 is mounted in the lower case 400, the optical structure 500 is tightly fitted within the lower case 400, so that the metal sheet end plates 502 of the optical structure 500 maintain the stiffness of the optical structure 500. the structure of the lower cabinet 400. The inventors have determined that the stiffness of the lower cabinet 400 with the optical structure 500 is important to provide the rigidity necessary for the projection television enclosure of the present invention. Again, persons skilled in the art will appreciate that various combinations of ridges, ridges, screw mounting tabs and screw holes can be formed in the optical structure 500 for mounting the optical structure 500 to the lower cabinet 400. An important aspect is that a substantial portion of the perimeter of the optical structure 500, except for the front face, can be supported by the lower cabinet 400 so that the loading of the optical structure 500 is supported in a stable manner by the cabinet 400 lower. The lower cabinet 400 is a convolutional thin walled structure. The lower cabinet 400 is designed to support the upper cabinet 300 and encompasses and supports the optical structure 500, such that the loading of the upper cabinet 300 and the optical structure 500 is transferred to the lower cabinet 400 in a manner which limits the tension of any of the fastening accessories. In addition, the lower cabinet 400 can also be formed to contain speakers for the projection television. The lower cabinet 400 is formed with a generally rectangular shape. When the lower cabinet 400 will contain speakers, two additional rectangular cabinets are essentially integrated as part of the rear wall of the lower cabinet 400. The lower cabinet 400 is formed by an upper wall 402, two lateral walls 404, 4042 (collectively side walls 404), and a rear wall 416 and a lower wall 408 in the form of a box as a whole with a front face partially open. The embodiment illustrated in the Figures also illustrates two additional rectangular rear cabinets 415i and 4152 (collectively 415 rear cabinets) to accommodate the speakers. The front face of the lower case 400 is formed with two circular bags 422i and 4222 (collectively circular bags 422) in the two upper corners of the front face of the lower case 400. As described above, the circular pouches 422 of the lower enclosure 400 coincide with the circular pouches 314 of the upper enclosure 300 to locate the upper enclosure 300 in the lower enclosure 400. These pairs of bags together allow the lower case 400 to restrict the lateral movements of the upper case 300. The lateral movements as used herein are defined as movements in the direction pointing from one of the two side walls 306 to the other side wall. An exploded view of this joint is illustrated more clearly in Figure 8.
The splices between the upper wall 402 and the side walls 404 in the lower cabinet 400, form shoulders 4121 and 4122 (collectively shoulders 412), essentially coextensive with the width of the lower case 400. As described above, the shoulders 412 of the lower cabinet 400 coincide with the shoulders 312 of the upper cabinet 300. The center of the upper wall 402 is formed with a partial cut 406, raised, formed for adaptation as an optical locator for locating the optics (ie, the cathode ray tubes) of the optical structure 500. See Figure 5 for details. The trailing edge of the raised partial cut forms a shoulder 410. As described above, the shoulder 410 of the lower cabinet 400 coincides with the leading shoulder 321 on the center spine 320 of the upper cabinet 300. The rear wall 416 of the lower cabinet 400 is formed with two screw holes 414i and 142 (collectively screw holes 414) located in the rear wall 416 at both ends of the raised optical locator 406. As described above, the two screw holes 414 in the rear wall 416 coincide with two screw holes 322 in the center spine 320 of the upper cabinet 300. The rear wall 416 is formed to also include two other screw holes 418 i and 4182 (collectively bolt holes 418). The two screw holes 418 are located in the rear wall 416 so that the screw holes 418 coincide with the two screw mounting tabs 323 in the center spine 320 of the upper cabinet 300. In addition, the rear wall 416 is formed with a plurality of screw holes 420 (illustratively 4 screw holes 420), to coincide with the screw mounting tabs 620, described above, in the floor interface 600. See Figure 4. The rear 415 cabinets in the rear wall 416 each is formed with a hole 417! and 4172 screw (collectively screw holes 417) near the bottom of each of the rear 415 cabinets. The two screw holes 417 coincide with the screw mounting tabs 617, described below, in the floor interface 600. Also, each back 415 cabinet is formed with a 446 hump? and 4462 outgoing (collectively 446 ridges) at the base of the cabinet. The projecting shoulders 446 coincide with the edges 618, described below, in the floor interface 600. The lower wall 408 of the lower cabinet 400 is designed to coincide with the floor interface 600. The two ends of the lower wall 408 are slightly raised and extended towards the side walls 404, which connect with the side walls 440 on the front face of the cavity 403 and form two shoulders 434-1 and 4342 (collectively shoulders 434). Similarly, the two ends of the side walls 404 are slightly raised and extended toward the center of the bottom wall 408, which forms two shoulders 436i and 4362 (collectively shoulders 426). The shoulders 434 and 436 form channels that coincide with two protruding arms 611, described later, in the floor interface 600. The pairs of protruding arms of the channel allow the floor interface 600 to restrict the lateral movement of the lower cabinet 400. The lower cabinet 400 is also formed with an internal cavity 403 to provide clearance for the optics (i.e., the cathode ray tube parts) of the optical structure 500 and the optical structure 500 itself. The cavity 403 is open towards the front face of the lower case 400 to insert the optical structure 500 into the lower case 400. The front face of the cavity 403 of the lower cabinet 400 is defined by two projecting blocks 4311 and 4312 (collectively blocks 431 projecting) located on the upper part of the front face of the cavity 403, two projecting blocks 438 and 4382 (collectively blocks 428). projecting) located near the upper part of the front face of the cavity 403, two side walls 440 and 4402 (collectively side walls 440) of the front face of the cavity 403, and a lower wall 408 of the front face of the cavity 403. A front face of each of the blocks 431 projecting from the cavity 403 is formed with a hole 30? and 4302 screw (collectively bolt holes 430). As described above, the two screw holes 430 coincide with the screw mounting tabs 504 of the optical structure 500. A side face of each of the blocks 431 projecting from the cavity 403 forms two shoulders 424 ^ and 4242 (collectively shoulders 424). As described above, the two shoulders 424 coincide with two upper edges 506 of the end plates 502 of the optical structure 500. Each of the blocks 438 projecting from the front face of the cavity 403 with a face 428? and 4282 lateral (collectively side 428 sides). As described above, the two side faces 428 of the projecting blocks 438 coincide with the front edges 503 of each end plate 502 of the optical structure 500. The two lateral walls 440 define the cavity 403 forming two shoulders 426i and 4262 (collectively shoulders 426). As described above, the two shoulders 426 of the two side walls 440 coincide with two lower bends 520 of the optical structure 500. The side walls 440 are formed with two screw holes 432t and 4322 (collectively screw holes 432) located near the top of the front face of the side walls 440. As described above, the two screw holes 432 coincide with two screw mounting tabs 521 of the optical structure 500. In addition, the side walls are also formed with two screw holes 444t and 4442 (collectively screw holes 444) located near the bottom of the front face at the side walls 440. The two screw holes 444 coincide with two screw mounting tabs 644 described below, in the floor interface 600. Those skilled in the art will appreciate that various combinations of ridges, ridges, screw mounting tabs and screw holes can be formed in the lower case 400 to mount the lower case 400 with the floor interface 600. An important aspect is that a substantial portion of the lower perimeter of the lower cabinet 400 can be supported by the floor interface 600, so that the load in the lower cabinet 400 is supported in a stable manner by the floor interface 600. In this way, fastening fittings (eg, screws, bolts, adjusting screws, etc.) are used to hold the lower case 400 with the floor interface 600 not experiencing excessive load or tension. The floor interface 600 is a relatively thin wall structure that can optionally be formed with a plurality of ribs added for rigidity. The floor interface 600 may optionally include 630 slices at the bottom to provide mobility. The floor interface 600 is designed to receive and support the lower cabinet 400, so that the load of the lower cabinet 300 is transferred to the floor interface 600 in a manner that limits the tension in any fixture. The floor interface 600 is formed with a generally rectangular shape with the addition of two protruding arms extended from the front ends of a rectangular body. A rectangular body 610 on the floor interface 600 is formed by an upper wall 601, two side walls 602 ^ 6022 (collectively side walls 602), a rear wall 603, a bottom wall 604 and a front wall 605, in the form of a box as a set with a partially open front face. The two protruding arms 6111 and 6112 (Collectively arms 611 protruding) of the floor interface 600 are formed by the upper wall 612, two walls 613 !, 6132 exterior (collectively 613 exterior walls), two walls 614? 6142 interiors (collectively interior walls 614), a bottom wall 615, and a front wall 616. The outer walls 613 of the projecting arms 611 extend laterally beyond the side walls of the rectangular body 610 to form two edges 618 ^ 6182 (collectively edges 618). As described above, the two edges 618 coincide with the protrusions 446 projecting into the base of the rear cabinets 415 of the lower cabinet 400. As described above, the two protruding arms 611, by themselves, coincide with the channels 435 of the lower cabinet 400.
The front wall 605 of the rectangular body 610 of the floor interface 600 is formed with a plurality of screw mounting tabs 620 (illustratively 4 screw mounting tabs), located together with the upper edge of the front wall 605. As described above, the plurality of screw mounting tabs 620 coincide with the plurality of screw holes 420 in the rear wall 416 of the lower cabinet 400. The front wall 616 of each of the arms 611 projecting from the floor interface 600 is formed with a screw mounting tab 644- and 6442 (collectively screw mounting tabs 644) located along the upper edge of each one of the front walls 616. As described above, the screw mounting tabs 644 coincide with two screw holes 444 located near the bottom of the front face of the side walls 440 of the lower case 400. The upper wall 612 of the rectangular body 610 of the floor interface 600 is formed with two screw tongues 617 ^ 6172 (collectively screw mounting tabs 617), located on the upper wall 612 together with the upper edge of the side walls 602 at a distance from the front wall 605, enough to match the two screw holes 417 near the bottom of each of the rear cabinets 415 in the lower cabinet 400. Those skilled in the art will appreciate that various combinations of ridges, flanges, screw mounting tabs, and screw holes can be formed in the floor interface 600 to mount the lower enclosure 400 with the floor interface 600. An important aspect is that a substantial portion of the lower perimeter of the upper cabinet 400 can be supported by the floor interface 600 so that the load of the lower cabinet 400 is supported in a stable manner by the floor interface 600. In this way, fastening accessories (eg, screws, bolts, adjusting screws, etc.) are used to hold the upper cabinet 400 with the floor interface 600 so that they do not experience excessive stress or load. When assembled together, the upper cabinet 300, the lower cabinet 400 includes an optical structure 500, and a floor interface 600 provide a projection television enclosure that is sufficiently rigid to prevent degradation in an image of the television. Projection due to the components that move in a material that is light and with advantage allows its mass production. Although the embodiment shown above, several holes and tabs are illustrated and described as "screw" holes and "screw" mounting tabs, it will be appreciated by those skilled in the art that other forms of fasteners (ie, bolts) can be implemented. , adjustment screws, and their like, as well as glue and their like) to hold the different components. In addition, persons skilled in the art will appreciate that although a specific number of holes and tabs were illustrated in the embodiment of the present invention illustrated in the Figures, a number of holes and tabs may be implemented in alternative embodiments of the present invention. . The number of holes and tabs is implemented to hold the enclosure of a projection television according to the present invention, it depends on the necessary or desired fastening in the projection television and the number of components used. An important aspect is that several components of the present invention are secured in such a way that they provide the rigidity necessary for a projection television to prevent degradation in the projection television image because the components move. In addition, the inventors provide this important aspect in a material that is lightweight and a method that allows with advantage, the mass production of the proposed projection television enclosure. While the foregoing is directed to certain embodiments of the invention, these and other embodiments of the invention can be contemplated without departing from the basic scope thereof. As such, the appropriate scope of the invention should be determined in accordance with the claims.

Claims (20)

  1. CLAIMS 1. An enclosure for a deployment device, characterized in that it comprises: a first enclosure (300) disposed in the upper part of a second enclosure (400); and a second cabinet (400) comprising an enclosure (403) for inserting a structure (500) of optics to support the optical components, the second enclosure (400) being disposed at the top of the floor interface (600 ), wherein: the first and second cabinets are removably coupled, the structure (500) of optics and the second cabinet (400) are made of a first and second materials, respectively, the first material has a resistance to bending more high that the second material so that when the structure (500) of optics is inserted inside the enclosure (403), the structure (500) of opticians prevents the side walls (404) of the second cabinet (400) from moving one with with respect to the other. 2. The enclosure of the deployment device according to claim 1, characterized in that the first cabinet (300) and the second cabinet (400) and the floor interface (600) are made of plastic, the first cabinet (300) has a first locator (314) which coincides with a second locator (422) so that the second cabinet (400) restricts lateral movement of the first cabinet (300). 3. The enclosure of the deployment device according to claim 2, characterized in that the second enclosure ('400) has a channel (435) which coincides with a projecting arm (611) of the floor interface (600) so that the interface (600) of floor restricts the lateral deformation of the lower wall (408) of the lower cabinet (400). 4. The enclosure of the deployment device according to claim 2, characterized in that the second material is metal. The enclosure of the deployment device according to claim 2, characterized in that the second enclosure (400) includes two lower projections (426) extended from a lower face (408) and two upper projections (424) extended from one side ( 402) of the second cabinet (400), the upper projections (426) coincide with two lower folds (520) of the optical structure (500) and the lower projections (424) coincide with two upper edges (506) of the structure 500 of opticians. The enclosure of the deployment device according to claim 2, characterized in that the second cabinet (400) is adapted to cooperate with a plurality of first cabinets, and wherein each of the plurality of first cabinets is adapted to receive a deployment device with respective sizes. 7. The enclosure of the deployment device according to claim 6, characterized in that the deployment devices are screens. The enclosure of the deployment device according to claim 2, characterized in that the optical structure (500) is disposed within the enclosure (403) of the second enclosure 400 to increase the rigidity of the second enclosure (400). 9. The enclosure of the deployment device according to claim 2, characterized in that the first enclosure (300), the second enclosure (400) and the floor interface (600) are formed by injection molding. The enclosure of the deployment device according to claim 2, characterized in that the floor interface (600) is essentially integrated as part of the second enclosure (400). 11. A deployment device apparatus characterized in that it comprises: a first enclosure (300) including a deployment device in optical cooperation with a reflective means, the first enclosure (300) is disposed above a second enclosure (400) and has a lower perimeter essentially conforming to an upper perimeter of the second cabinet (400); and the second cabinet (400) includes a structure (500) of optics to support the optical components, the second cabinet (400) comprises an enclosure (403) for inserting the structure (500) of optics so that the structure ( 500) of optics is tightly fitted within the enclosure (403) which increases the stiffness of the second enclosure (400), the second enclosure (400) is disposed on the floor interface (600) and has a lower perimeter which essentially conforms to a top perimeter of the floor interface (600); the first cabinet (300) and the second cabinet (400) are made of plastic and are formed separately and are detachably coupled. 12. The projection deployment apparatus according to claim 11, characterized in that the deployment device is a screen. The projection deployment apparatus according to claim 11, characterized in that the first enclosure (300) and the second enclosure (400) and the floor interface (600) are formed by injection molding. The projection deployment apparatus according to claim 11, characterized in that the floor interface (600) comprises stiffening ribs. The projection display apparatus according to claim 11, characterized in that the floor interface (600) also comprises slices (630). 16. A method for providing a deployment device enclosure, characterized in that it comprises: forming a first plastic enclosure (300), the first enclosure (300) is disposed above a second enclosure (400) and has a lower perimeter that is essentially conforms to an upper perimeter of the second cabinet (400), wherein a substantial portion of the lower perimeter of the first cabinet (300) is supported by the second cabinet (400) so that a load transferred from the first cabinet (300) to the second cabinet (400), when coupled together, are supported by the second cabinet (400), form the second plastic cabinet (400), the second cabinet (400) comprises an enclosure (403) for inserting a structure (500) of optics so that when the optical structure (500) is inserted it fits tightly within the enclosure (403) which increases the rigidity of the second enclosure (400), the second enclosure (400) is disposed on top of the enclosure (400). a floor interface (600) and having a lower perimeter that essentially conforms to an upper perimeter of the floor interface (600); and forming the plastic floor interface (600), the floor interface (600) is formed to mate with the second cabinet (400). The method according to claim 16, characterized in that the second cabinet (400) is formed to cooperate with a plurality of first cabinets, wherein each of the plurality of first cabinets comprises a lower perimeter substantially conforming to the upper perimeter of the second cabinet (400), and wherein each of the upper cabinets is adapted to receive a deployment device of respective size. 18. The method according to claim 17, characterized in that the deployment devices are screens. The method according to claim 16, characterized in that the floor interface (600) comprises stiffening ribs. The method according to claim 16, characterized in that the floor interface (600) is essentially integrated as part of the second cabinet (400).
MXPA04010510A 2002-04-26 2003-04-22 Method and apparatus for a light weight enclosure for projection televisions. MXPA04010510A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37609802P 2002-04-26 2002-04-26
PCT/US2003/012567 WO2003090511A2 (en) 2002-04-26 2003-04-22 Method and apparatus for a light weight enclosure for projection televisions

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MXPA04010510A true MXPA04010510A (en) 2005-04-22

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EP (1) EP1500266A2 (en)
JP (1) JP4583031B2 (en)
KR (1) KR100978163B1 (en)
CN (1) CN100576895C (en)
AU (1) AU2003241309A1 (en)
MX (1) MXPA04010510A (en)
WO (1) WO2003090511A2 (en)

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Publication number Priority date Publication date Assignee Title
JPH0338980U (en) * 1989-08-23 1991-04-15
JPH099185A (en) * 1995-06-19 1997-01-10 Sony Corp Cabinet for rear projector
JP3381181B2 (en) * 1995-09-29 2003-02-24 ソニー株式会社 LCD rear projection TV
JP2001054039A (en) * 1999-08-06 2001-02-23 Matsushita Electric Ind Co Ltd Projection-type television receiver

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WO2003090511A3 (en) 2004-10-21
AU2003241309A1 (en) 2003-11-10
AU2003241309A8 (en) 2003-11-10
KR100978163B1 (en) 2010-08-25
JP4583031B2 (en) 2010-11-17
KR20040104623A (en) 2004-12-10
WO2003090511A2 (en) 2003-11-06
CN1647515A (en) 2005-07-27
CN100576895C (en) 2009-12-30
JP2005524257A (en) 2005-08-11
EP1500266A2 (en) 2005-01-26

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