JP2013142852A - Case storage type projector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a case storage type projector where a screen is easily formed, the size of the screen is not restricted to the size of an upper case, and convenience is improved.SOLUTION: A case storage type projector includes: a projector body 20 which projects image light; and a body case 10 which stores the projector body 20. The body case 10 includes: a lower case 11 which stores the projector body 20 at a predetermined position; and an upper case 12 which is openable to the lower case 11, and a screen 30 which has a reflection surface 302 for reflecting the image light to be projected from the projector body 20 is deployably installed on the inside of the upper case 12. In addition, when the screen 30 is deployed, area of the screen 30 becomes larger than inner area of the upper case 12.

Description

  The present invention relates to a case housing type projector that houses a projector and a screen.

  Conventionally, as disclosed in Patent Document 1, there is a portable screen-integrated projector in which a projector body and a screen are integrated. In detail, this portable screen-integrated projector includes a projector body and a screen that are foldably connected to each other at a connection portion. The projector body includes a light source, a modulation section, and a projection optical system. When the projector is opened, the projection distance, which is the distance between the projection optical system and the screen, is set to be shorter than the vertical length of the screen. Thereby, even if the screen and the projector are integrated, an image of an appropriate size can be projected onto the screen.

  Conventionally, as disclosed in Patent Document 2, there is a saddle type presentation apparatus including a main body case constituted by an upper case and a lower case, and a reflective screen and a small projector accommodated in the main body case. In detail, this vertical presentation apparatus has a reflective screen disposed in the upper case, and its surface reflectance is 4-50%. Its shape is a regular spherical surface, a regular curved surface or Fresnel, and its focal position is The light projected from the small projector arranged is reflected straight, thereby preventing the generation of hot spots and achieving a brightness that is 4-50 times that of the prior art.

JP 2010-134157 A JP 2009-53644 A

A problem with the portable screen-integrated projector disclosed in Patent Document 1 is that the screen surface is not protected, scratches and dirt are likely to adhere, and it is necessary to devise during storage. In addition, since it is assumed to be carried, it is a problem that portability is reduced when the size of the screen is increased. In addition, the vertical presentation apparatus disclosed in Patent Document 2 has a problem that the shape of the reflective screen is curved in the vertical direction, and it is difficult to form the shape. Moreover, since the reflective screen is installed inside the upper case, there is a problem that the size (area) of the projection screen is smaller than the area of the upper case.
Accordingly, there has been a demand for a case-accommodating projection device that facilitates the formation of the screen, the size of the screen is not limited to the size of the upper case, and the convenience is improved.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A case-accommodating projection apparatus according to this application example includes a projector body that projects image light and a body case that houses the projector body, and the body case houses the projector body at a predetermined position. A lower case, and an upper case that can be opened and closed with respect to the lower case. A screen having a reflective surface that reflects image light projected from the projector main body is installed in an expandable manner inside the upper case. It is characterized by.

  According to such a case-accommodating type projection device, the projector main body and the screen are provided in the main body case, so that the portability (portability) is improved. In addition, when not in use, the upper case can be closed to prevent dust from adhering to the projector body and the screen. In addition, since the positions of the screen and the projector are determined, it is possible to make the apparatus ready for use immediately by initial setting without performing focus adjustment or zoom adjustment. Further, since the screen is installed so as to be expandable, the size of the screen can be determined without being limited to the size of the upper case. Moreover, a screen can be accommodated compactly by folding, for example. Thus, the convenience of the case-accommodating projection device can be improved.

  Application Example 2 In the case-accommodating projection apparatus according to the application example described above, when the screen is extended, the area of the screen is preferably larger than the inner area of the upper case.

  According to such a case-accommodating type projector, the image light projected from the projector main body can be projected larger than the inner area of the upper case without being limited to the size (inner area) of the upper case. In addition, the convenience of the case-accommodating projection device can be further improved.

  Application Example 3 In the case-accommodating projection device according to the application example, it is preferable that the lower case includes a leg portion that inclines the main body case.

  According to such a case-accommodating projection device, by providing the legs, the image reflected by the screen can be adjusted to a position that is easy for the user to see, and visibility can be improved. Thereby, the convenience of a case accommodation type projection device can further be improved.

  Application Example 4 In the case-accommodating projection device according to the application example, the upper case can be opened so as to be out of the optical path of the image light projected from the projector main body and / or can be attached to and detached from the lower case. It is preferable that it is installed in.

  According to such a case-accommodating type projection device, the upper case is opened so as to be out of the optical path of the image light projected from the projector body, or the image light projected from the projector body is removed from the lower case. Can be projected onto other projection target surfaces such as wall surfaces in addition to the screen installed in the upper case. Thereby, the freedom degree of selection of a projection target surface improves, it can project with a size larger than the size of the screen installed in an upper case, and the convenience of a case accommodation type projection device can further be improved.

  Application Example 5 In the case-accommodating projection apparatus according to the application example described above, the reflection surface of the screen includes a reflection area that reflects image light projected from the projector body and an absorption area that absorbs external light. It is preferable.

  According to such a case-accommodating type projection device, by having the reflection area and the absorption area on the reflection surface of the screen, the image light is reflected toward the user side in the reflection area, and unnecessary absorption is performed in the absorption area. Absorbs light. With this configuration, the reflective surface can be easily formed compared to the conventional case. In addition, it is possible to efficiently reflect the projection light projected from the adjacent projector main body, and it is possible to improve the contrast of the projected image even in a bright environment, thereby improving the visibility. it can. Further, since the clear image can be reflected even when the brightness of the image light to be projected is lowered, the power consumption of the projector main body can be reduced.

  Application Example 6 In the case-accommodating projection device according to the application example described above, the reflection surface has a plurality of recesses or projections, and the reflection region and the absorption region are formed in the plurality of recesses or projections. It is preferable.

  According to such a case-accommodating type projection device, the reflection region and the absorption region are formed in the plurality of concave portions or convex portions, so that the projection light projected from the adjacent projector body is more efficiently performed. In addition, since the contrast of the projected image can be further improved even in a bright environment, the visibility can be further improved. Further, since the clearer image can be reflected even when the brightness of the image light to be projected is lowered, the power consumption of the projector main body can be further reduced.

  Application Example 7 In the case-accommodating projection apparatus according to the application example described above, the screen is preferably configured by any one of a rotation mechanism, a slide mechanism, and a folding mechanism.

  According to such a case-accommodating type projection device, the screen can be easily extended by any one of the rotation mechanism, the slide mechanism, and the folding mechanism. Further, the screen can be easily put into the accommodated state by performing the reverse operation to the stretching.

The figure which shows typically the case accommodation type projection apparatus which concerns on 1st Embodiment. The figure which shows the state which extended the screen. FIG. 3 is a schematic cross-sectional view showing a configuration of a screen. The figure which shows an example of use of a case accommodation type projector. The figure which shows typically the case accommodation type projection apparatus which concerns on 2nd Embodiment. The figure which shows typically the case accommodation type projection apparatus which concerns on 3rd Embodiment.

Hereinafter, embodiments will be described with reference to the drawings.
(First embodiment)

  FIG. 1 is a diagram schematically illustrating the case-accommodating projection device 1 according to the first embodiment, and FIG. 1A is a front view illustrating a state in which the upper case 12 is opened, and FIG. ) Is a perspective view showing a state in the middle of extending the screen 30. FIG. 2 is a diagram schematically showing a state in which the screen 30 is stretched, FIG. 2A is a front view showing a state in which the screen 30 is stretched, and FIG. 2B is a diagram in which the screen 30 is stretched. It is sectional drawing of the side surface direction which showed the state which carried out. FIG. 2B shows the state of image light projected from the projector main body 20. In the subsequent drawings including FIG. 1, the dimensions and ratios of the constituent elements are shown as appropriately different from the actual ones in order to make the constituent elements large enough to be recognized on the drawings. The configuration and operation of the case-accommodating projection device 1 will be described with reference to FIGS. Note that the case-accommodating projection apparatus 1 will be appropriately used as abbreviated as the projector 1 hereinafter.

  The projector 1 according to this embodiment includes a projector body 20 and a screen 30 inside a body case 10. The main body case 10 includes a box-shaped lower case 11 and a lid-shaped upper case 12. The upper case 12 is connected to the lower case 11 by two hinges 111 so as to be opened and closed. Although illustration is omitted, when the upper case 12 is closed, the projector 1 has a substantially rectangular parallelepiped shape.

  In addition, three leg portions 112 are installed on the bottom surface of the lower case 11. Specifically, two legs 112A are installed at both ends of the lower case 11 on the hinge 111 side (front side), and one leg 112B is provided at the center (opposite side) opposite to the hinge 111 side. Installed. In addition, the one leg part 112B is installed so that expansion-contraction is possible in this embodiment. The legs 112 can be stably placed on the desk surface D or the like when the projector 1 is used. The leg 112B will be described later.

  When the projector 1 is used, the projector 1 is placed on the desk surface D or the like, and the upper case 12 is opened for use. When the projector 1 is not used, the upper case 12 is closed. In this embodiment, the user manually opens and closes the projector 1.

  In the present embodiment, as shown in FIGS. 1 and 2, the upper case 12 rotates around the hinge 111 as a fulcrum, and is once fixed at a position of approximately 90 degrees with respect to the lower case 11. In addition, when further force is applied from the position opened at approximately 90 degrees, the upper case 12 is fixed at a position in a collapsed state (approximately 180 degrees) as shown in FIG. The upper case 12 is structured to be fixed at the closed position and the two positions.

  An expandable screen 30 is installed on the inner surface of the upper case 12. As shown in FIG. 1, the screen 30 is installed in a folded state. A magnet 121 is embedded in the inner surface of the upper case 12 over the left and right directions and the upper direction of the outer periphery of the screen 30 in a folded state. The magnet 121 has a function of fixing the screen 30 to the upper case 12 when the screen 30 is extended.

  The projector 1 of the present embodiment is configured to be small and portable, and the size when carrying it (the size when the upper case 12 is closed) is the size that fits into the pocket of clothes. That's it. Further, the size of the screen 30 when the screen 30 is extended and used (see FIG. 2A) is approximately 15 inches diagonally.

Here, the configuration of the screen 30 and the spreading procedure will be described.
As shown in FIG. 1A, the screen 30 is folded and accommodated in the inner surface of the upper case 12. As shown in FIG. 2A, the screen 30 is composed of six surfaces, and the six surfaces are folded. Reference numerals “A” to “F” are appended to the six surfaces constituting the screen 30 as shown in FIG.

  The screens 30 </ b> A to 30 </ b> F are each provided with a reinforcing plate 31 on the back side in order to increase rigidity. Note that reference numerals “A” to “F” are appended to the reinforcing plate 31 so as to correspond to the screens 30A to 30F. Accordingly, the screens 30A to 30F are reinforced by the corresponding reinforcing plates 31A to 31F, respectively. Each reinforcing plate 31 is connected by a connecting member 32 having flexibility. A folding mechanism is configured by the screen 30, the reinforcing plate 31, the connecting member 32, the magnet 121, and a magnetic plate 311 described later.

  Before describing the procedure for expanding the screen 30, how the screen 30 is folded and accommodated will be described. For this purpose, a procedure for folding based on the expanded screen 30 shown in FIG.

  As shown in FIG. 2A, first, the screen 30 is folded around the folding line A in the vertical direction. Accordingly, the screens 30A, 30C, and 30E are folded so as to face the screens 30B, 30D, and 30F. Next, it folds around one fold line B in the left-right direction. As a result, the screens 30E and 30F overlap the screens 30C and 30D.

  Finally, it folds around the other fold line C in the left-right direction. As a result, the screens 30A and 30B overlap the screens 30E and 30F. By this operation, the screen 30 is folded as shown in FIG. 1A, and 30B (31B) is in a state (accommodating state) that overlaps the top. Note that the user manually performs folding and expansion of the screen 30.

Next, the procedure for extending the screen 30 will be described.
The screen 30 is stretched by a procedure reverse to the folding procedure. First, with respect to the folded screen 30, as shown in FIG. 1B, the uppermost screens 30B and 30A are expanded (deployed) in the right direction (arrow 1) around the folding line C. To do. Next, the screens 30F and 30E are developed leftward (arrow 2) with the fold line B as the center. Finally, as shown in FIG. 2A, the screens 30A, 30C, 30E are developed upward (arrow 3) with the fold line A as the center. By this operation, the screen 30 is expanded as shown in FIG.

  The area of the stretched screen 30 is larger than the inner area of the upper case 12 as shown in FIG. Initially, the reinforcing plate 31D of the screen 30D is fixed to the inner surface of the upper case 12. In addition, a magnetic plate 311 having magnetism attracted to the magnet 121 is fixed to the reinforcing plates 31A, 31B, 31C, 31E, and 31F other than the reinforcing plate 31D at positions corresponding to the magnets 121 installed in the upper case 12. ing.

  In this embodiment, a thin iron plate is used as the magnetic plate 311. Thereby, when the screen 30 is extended, the magnetic plates 311 provided in the reinforcing plates 31A, 31B, 31C, 31E, and 31F are attached to the corresponding portions of the magnet 121, so that the screen 30 is attached to the upper case 12. It is fixed to the inner surface. The magnet 121 of the present embodiment uses a magnetic powder having a magnetic force that is kneaded into a resin to form a tape. When the screen 30 is folded, the reinforcing plate 31 (magnetic plate 311) is folded while being separated from the magnet 121.

Next, the configuration and operation of the projector body 20 will be described.
As shown in FIG. 2, the projector main body 20 is fixed to the lower case 11 and installed. As shown in FIG. 2B, the projector body 20 generally includes a light source device 21, a liquid crystal panel 22, a projection lens 23, and a mirror 24. The projector body 20 includes an internal power supply (not shown), and normally operates with this internal power supply. The internal power supply can be charged.

  The light source device 21 irradiates the liquid crystal panel 22 with light. In the present embodiment, the light source device 21 includes an LED (Light Emitting Diode) that emits white light. The liquid crystal panel 22 includes a transmissive liquid crystal panel and a liquid crystal panel driving unit, and modulates light emitted from the light source device 21 based on an image signal supplied from an image processing unit (not shown) to represent an image. The image light is emitted.

  The projection lens 23 includes a plurality of lenses (not shown), and an aspherical lens (so-called ultrashort focus lens) having a short focal length is used for a part of the projection lens 23. The mirror 24 reflects the image light transmitted through the projection lens 23 and projects it onto the screen 30. As a result, an image is displayed on the screen 30. Note that the projection lens 23 of the present embodiment includes a focus mechanism (not shown) that performs focus adjustment described later. The projection lens 23 of this embodiment reduces the projection distance (the distance from the mirror 24 to the screen 30) by combining the ultrashort focus lens and the mirror 24.

  The projector main body 20 is installed at the approximate left and right centers of the lower case 11, and the mirror 24 is also located at the approximate center. Then, the projector body 20 forms image light that has been subjected to trapezoidal correction processing in the vertical direction by the image processing unit and the liquid crystal panel 22, and sets and projects the projection size by the projection lens 23.

  For this reason, as shown in FIG. 2A, when the projector body 20 operates and projects image light, the projector 1 is projected so as to enter a predetermined distance from the outer periphery of the stretched screen 30. Is initially set to Therefore, as shown in FIG. 2A, after the upper case 12 is opened and the screen 30 is extended, a switch (not shown) installed in the projector main body 20 is operated to correspond to the external size of the screen 30. The focused image is displayed on the screen 30.

  FIG. 3 is a schematic cross-sectional view showing the configuration of the screen 30. FIG. 3A is a diagram in which a concave portion 303 is formed on the reflective surface 302. FIG. 3B is a diagram in which a reflective region 303A is formed in the concave portion 303. It is the figure which formed the reflective film 304 to comprise. FIG. 3 also shows a method for manufacturing the screen 30. The configuration, manufacturing method, and operation of the screen 30 will be described with reference to FIG.

  The screen 30 of this embodiment uses a flexible sheet-like screen base material 301. In this embodiment, the screen base material 301 is formed of a black vinyl chloride resin. The reason for the black color is that unnecessary external light (incident light) such as sunlight and room light can be easily absorbed.

  One surface (reflection surface 302) of the screen substrate 301 has a plurality of concave portions 303 formed in a concave shape throughout. Specifically, the recesses 303 are arranged in a circular arc shape with a predetermined position on a center line (not shown) in the left-right direction of the reflecting surface 302 as a center, and are formed so as to be concentrically arranged with the center as a concentric circle. Is done. The recesses 303 of the present embodiment have a substantially hemispherical inner surface and are formed with a pitch of about 300 μm.

  The recess 303 is formed using a transfer device (not shown) that presses a transfer mold (not shown) against the screen base material 301 while heating. The transfer device presses the screen base material 301 with high pressure from both sides while heating the mold formed in a shape opposite to the shape to be formed (the shape of the concave portion 303), so that the screen base material 301 is shaped into a mold. Along with this, it is thermally deformed (transferred) to form a necessary shape. As a result, as shown in FIG. 3A, a plurality of recesses 303 are formed in the reflective surface 302.

  The recess 303 includes a reflection region 303A and an absorption region 303B. The reflection area 303 </ b> A is an area that reflects image light projected from the projector main body 20. The absorption region 303B is a region that absorbs unnecessary light such as external light. In addition, the reflective region 303A is configured by forming a reflective film 304 in the present embodiment. The absorption region 303B is configured in a state where the reflective film 304 is not formed and the screen base material 301 is exposed.

  The reflective film 304 is formed using a vapor deposition apparatus. In the vapor deposition, as shown in FIG. 3B, the virtual light source position P is assumed in advance as the approximate center position of the mirror 24 of the projector body 20 that emits the projection light Lp obliquely with respect to the reflection surface 302. Then, the angle θs of vapor deposition of the vapor deposition material with respect to each concave portion 303 of the reflective surface 302 is equal to or smaller than the incident angle θp of the projection light Lp from the virtual light source position P with respect to each concave portion 303 of the reflective surface 302. The vapor deposition source S is disposed in the vapor deposition material, and the vapor deposition material (aluminum in the present embodiment) is radially diffused and vapor-deposited in each recess 303.

  By performing vapor deposition, a concave reflective film 304 is formed along the inner surface of the concave portion 303 irradiated with the projection light Lp. In this way, by performing vapor deposition from an oblique direction, an aluminum reflective film 304 is selectively formed radially on each concave portion 303 of the reflective surface 302 around the vapor deposition source S.

  Therefore, as shown in FIG. 2B, the image light (projection light Lp) reflected on the screen 30 (reflection surface 302) is reflected on the screen 30 by the reflection region 303 </ b> A ( Reflected by the reflective film 304) and recognized as an image by the user facing the screen 30.

  FIG. 4 is a diagram showing an example of use of the case-accommodating projection device 1, and FIG. 4 (a) is a side sectional view showing a case where the leg 112B is extended and used, and FIG. ) Is a side sectional view showing a case where the upper case 12 is tilted and used.

  As shown in FIG. 4A, in the projector 1 of the present embodiment, one leg 112B is installed to be extendable. By rotating the leg 112B itself, the leg part 112B can be expanded and contracted by rotating the threaded shaft part 1121 installed integrally with the leg part 112B. By rotating the leg portion 112B and extending the leg portion 112B, the main body case 10 is tilted about the leg portion 112A as shown in FIG. 4A (the rear side of the main body case 10 is moved upward). Can be made.

  In this way, by extending the leg portion 112B and moving (tilting) the rear side of the main body case 10 upward, the image reflected by the screen 30 faces the screen 30 (the rear of the main body case 10). ) So that the user can easily adjust the position so that the user can easily see.

  As shown in FIG. 4B, the projector 1 according to the present embodiment is fixed at a position in which the upper case 12 is tilted (approximately 180 degrees). In that case, the screen 30 installed in the upper case 12 also falls down together. The upper case 12 is set to be openable so as to fall down so as to be out of the optical path of the image light projected from the projector body 20.

  The projector 1 can tilt the upper case 12 and project the image light from the projector main body 20 onto a desired projection target surface in front of the upper case 12 to display the image as an image. In this embodiment, the projection target surface is projected onto the wall surface W. In this case, the user manually adjusts the focus of the image that is projected and displayed on the wall surface W by operating the focus mechanism of the projector body 20.

According to the embodiment described above, the following effects can be obtained.
According to the case-accommodating projection apparatus 1 of the present embodiment, the main body case 10 is provided, the lower case 11 accommodates the projector main body 20 in a predetermined position, and the openable upper case 12 is provided with a screen 30 that can be expanded. Yes. Thereby, the portability of the case accommodation type projection device 1 improves. Further, when not used, the upper case 12 can be closed to prevent dust from adhering to the projector body 20 and the screen 30. Further, since the projector main body 20 is housed and fixed in the lower case 11, the position with respect to the screen 30 is determined, and focus adjustment and zoom adjustment are initially performed, so that the projector main body 20 can be immediately used. Thus, the convenience of the case-accommodating projection device 1 can be improved.

  According to the case-accommodating projection device 1 of the present embodiment, when the screen 30 is extended, the area of the screen 30 is larger than the inner area of the upper case 12. Therefore, the image light projected from the projector main body 20 can be projected larger than the inner area of the upper case 12 without being limited to the size (inner area) of the upper case 12, and thus the case-accommodating projection device 1. The convenience can be further improved.

  According to the case-accommodating projection apparatus 1 of the present embodiment, the reflection surface 302 (each recess 303) of the screen 30 includes the reflection region 303A and the absorption region 303B, so that the image light is transmitted to the user side in the reflection region 303A. The light is reflected and absorbed by the absorption region 303B to absorb unnecessary external light (incident light) such as sunlight and room light. With this configuration, the reflective surface 302 can be easily formed compared to the conventional case. In addition, it is possible to efficiently reflect the projection light Lp projected from the adjacent projector body 20, and to improve the contrast of the projected image even in a bright environment, thereby improving visibility. be able to.

  According to the case-accommodating projection device 1 of the present embodiment, the contrast of the projected image can be improved and the visibility can be improved even in a bright environment, so that the brightness of the projected image light is reduced. Even in this case, a clear image can be reflected, and the power consumption of the projector body 20 can be reduced. Thereby, the drive time by the internal power supply of the case accommodation type projector 1 can be lengthened. Therefore, the convenience of the portable case-accommodating projection device 1 can be improved.

  According to the case-accommodating projection apparatus 1 of the present embodiment, the screen 30 is configured by a foldable mechanism, and the screen 30 can be easily extended. Moreover, the screen 30 can be easily put into the accommodated state by performing the operation opposite to the stretching.

  According to the case-accommodating projection apparatus 1 of the present embodiment, the lower case 11 includes the leg portion 112B for inclining the main body case 10, so that the image reflected by the screen 30 is adjusted to a position that is easy for the user to see. And visibility can be improved. Thereby, the convenience of the case accommodation type projection device 1 can be improved.

According to the case-accommodating projection device 1 of the present embodiment, the upper case 12 is tilted so as to be out of the optical path of the image light projected from the projector main body 20, whereby the image light projected from the projector main body 20 is 12 can be projected onto other projection target surfaces such as the wall surface W. Thereby, the freedom degree of selection of a projection target surface improves, it can project with a size larger than the size of the screen 30 installed in the upper case 12, and the convenience of the case accommodation type projection apparatus 1 can be improved. it can.
(Second Embodiment)

  FIG. 5 is a diagram schematically illustrating the case-accommodating projection device 2 according to the second embodiment, and FIG. 5A is a front view illustrating a state in which the upper case 12 is opened, and FIG. ) Is a front view showing a state in which the screen 40 is extended. With reference to FIG. 5, the configuration and operation of the case-accommodating projection device 2 will be described. Note that the case-accommodating projection device 2 will be appropriately used as abbreviated as the projector 2 hereinafter.

  The projector 2 of the present embodiment is different in the configuration of the screen 40 from the projector 1 of the first embodiment. Further, the projector 2 according to the present embodiment does not use the reinforcing plate 31, the connection member 32, the magnet 121, the magnetic plate 311, and the like in the first embodiment. Other components are configured and operate in the same manner as in the first embodiment. Components similar to those in the first embodiment are denoted by the same reference numerals.

  The screen 40 according to this embodiment is divided into four parts and is installed in the upper case 12. The divided screens 40 are referred to as screens 40A, 40B, 40C, and 40D, respectively. The screen 40 is accommodated in the upper case 12 in a state where the four screens 40 to be divided are stacked (accommodated state).

  In addition, as shown in FIG. 5A, the four screens 40 that are stacked have a support shaft 41 installed at the upper right corner of the screen 40, and other screens 40 </ b> D are excluded from the support shaft 41. The screens 40A, 40B, and 40C are configured to be rotatable (expandable). In addition, the rotation mechanism is comprised by the spindle 41 and the screen 40 (40A, 40B, 40C, 40D).

  The screen 40 of the present embodiment uses, as the screen base material 401, a vinyl chloride resin having improved rigidity as compared to the screen base material 301 in the screen 30 of the first embodiment. Further, in this screen base material 401, the concave portion 303, the reflective region 303A, and the absorption region 303B in the reflective surface 302 in the first embodiment are configured in the same manner. However, when the screen 40 is processed, it is processed based on the positional relationship in which the respective screens 40A, 40B, 40C, 40D are extended.

Next, the procedure for extending the screen 40 will be described.
As shown in FIG. 5A, the overlapping screen 40 is stretched by rotating around the support shaft 41 in order from the top. Specifically, as shown in FIG. 5B, first, the uppermost screen 40 </ b> A is expanded (rotated) in the right direction (arrow 1) around the support shaft 41. Specifically, the screen 40A is rotated approximately 270 degrees.

  Next, the screen 40B is rotated rightward (arrow 2) around the support shaft 41. Specifically, the screen 40B is rotated approximately 180 degrees. Finally, the screen 40C is rotated rightward (arrow 3) about the support shaft 41. Specifically, the screen 40C is rotated approximately 90 degrees. By this operation, the screen 40 is expanded as shown in FIG.

  In addition, the extended screen 40 becomes a substantially square shape in this embodiment. Further, the area of the expanded screen 40 is larger than the inner area of the upper case 12 as in the first embodiment.

  A fixing mechanism (not shown) is installed on the support shaft 41. When the screens 40A, 40B, and 40C rotate to their respective positions, they are fixed at those positions. The support shaft 41 presses and supports the screens 40A, 40B, 40C, and 40D, and substantially eliminates the gaps between the screens 40A, 40B, 40C, and 40D.

  To accommodate the extended screen 40, the procedure is reversed from the procedure for the extension. The screen 40 is manually rotated by the user.

  As shown in FIG. 5B, when the screen 40 of the present embodiment is expanded, the screen 40 is biased to the right. Therefore, the positions of the projection lens 23 and the mirror 24 of the projector main body 20 according to the present embodiment are moved to the right so that the support shaft 41 is substantially at the center.

According to case accommodation type projection device 2 of an embodiment mentioned above, in addition to having the same effect as case accommodation type projection device 1 of a 1st embodiment, the following effects are acquired.
According to the case-accommodating projection device 2 of the present embodiment, the screen 40 is configured by a rotatable mechanism, and the screen 40 can be easily extended. Further, the screen 40 can be easily put into the accommodated state by performing the operation opposite to the stretching.
(Third embodiment)

  FIG. 6 is a diagram schematically showing the case-accommodating projection device 3 according to the third embodiment, and FIG. 6A is a perspective view showing a state in which the upper case 12 is opened, and FIG. ) Is a perspective view showing a state in which the screen 50 is extended. With reference to FIG. 6, the configuration and operation of the case-accommodating projection device 3 will be described. Note that the case-accommodating projection device 3 will be appropriately used as abbreviated as the projector 3 hereinafter.

  The projector 3 of the present embodiment is different in the configuration of the screen 50 from the projector 1 of the first embodiment. Further, the projector 3 according to the present embodiment does not use the reinforcing plate 31, the connection member 32, the magnet 121, the magnetic plate 311, and the like in the first embodiment. Other components are configured and operate in the same manner as in the first embodiment. Components similar to those in the first embodiment are denoted by the same reference numerals.

  The screen 50 according to the present embodiment is accommodated in the upper case 12, and a winding portion 51 that winds the screen 50, and a slide portion 52 that unwinds the screen 50 from the winding portion 51, expands it, and fixes it at a predetermined position. And is configured. The winding part 51 is installed in the vertical direction of the left end part of the upper case 12. The winding part 51 includes a shaft part and an urging spring (both not shown). The winding portion 51 fixes one end of the screen 50 to the shaft portion, and winds the screen 50 by the biasing force of the biasing spring. In addition, the winding unit 51 performs an operation of feeding out the screen 50 when it is overcome and pulled by the urging spring by a slide unit 52 described later. The screen 50, the winding part 51, and the slide part 52 constitute a slide mechanism, and the screen 50 is slidable (can be extended).

  The other end portion of the screen 50 is held by a holding portion 523 that is slidable in the right direction in the vertical direction of the right end portion of the upper case 12. In addition, a grip portion 524 that is gripped when the screen 50 is expanded is installed at the center of the holding portion 523.

  The slide part 52 is configured to be able to slide the screen 50 in the right direction. The slide portion 52 has a slide groove portion 521 formed on the inner surface of the upper case 12, and a slide plate 522 is slidably installed along the slide groove portion 521. The above-described holding portion 523 is connected to the slide plate 522.

  As shown in FIG. 6A, in the accommodated state of the screen 50, the slide plate 522 is fixed at a position slid to the left end portion of the slide groove portion 521. In addition, the holding portion 523 is fixed at a position that is inside a predetermined distance from the right end portion of the upper case 12. With this configuration, the upper case 12 can be opened and closed with respect to the lower case 11.

  The screen 50 of this embodiment uses a vinyl chloride resin having the same rigidity as the screen base material 301 in the screen 30 of the first embodiment as the screen base material 501. Further, in this screen base material 501, the concave portion 303, the reflection region 303A, and the absorption region 303B on the reflection surface 302 in the first embodiment are similarly configured. However, when the screen 50 is processed, the screen 50 is processed based on the expanded state.

Next, the procedure for extending the screen 50 will be described.
As shown in FIG. 6A, an operation of holding the holding portion 524 and pulling it to the right is performed on the screen 50 in the accommodated state. By this operation, as shown in FIG. 6B, the screen 50 is fed out from the winding portion 51, and starts moving in the right direction as indicated by an arrow. At the same time, the slide plate 522 starts to slide along the slide groove 521.

  As shown in FIG. 6B, when the slide plate 522 is positioned at a predetermined position, the engagement portion (not shown) of the slide plate 522 is engaged with the fixing groove (not shown) of the slide groove portion 521. The movement of the slide plate 522 is restricted and stopped and fixed. By this operation, the screen 50 is expanded as shown in FIG.

  In order to accommodate the screen 50 that has been stretched (slid), a procedure reverse to the procedure of the stretching is performed. Note that the user slides the screen 50 manually.

  As shown in FIG. 6B, the area of the expanded screen 50 is larger than the inner area of the upper case 12 as in the first embodiment. When the screen 50 is extended, the screen 50 is biased to the right. For this reason, the positions of the projection lens 23 and the mirror 24 of the projector main body 20 according to the present embodiment are moved to the right so as to be positioned at the approximate center in the left-right direction of the expanded screen 50.

According to case accommodation type projection device 3 of an embodiment mentioned above, in addition to having the same effect as case accommodation type projection device 1 of a 1st embodiment, the following effects are acquired.
According to the case-accommodating projection device 3 of the present embodiment, the screen 50 is configured with a slidable mechanism, and the screen 50 can be easily extended. Moreover, the screen 50 can be easily put into the accommodated state by performing the reverse operation to the stretching.

  In addition, it is not limited to the 1st-3rd embodiment mentioned above, It is possible to add and implement various changes, improvements, etc. in the range which does not deviate from the summary. A modification will be described below.

  The case-accommodating projection apparatus 1 in the first embodiment accommodates and extends the screen 30 by folding it. However, the folding method is not limited, and the folding method, the number of times of folding, and the like can be determined as appropriate.

  In the case-accommodating projection device 1 according to the first embodiment, when the screen 30 is stretched, the screen 30 is fixed to the upper case 12 by attaching a magnetic plate 311 to the magnet 121. However, the fixing method is not limited, and a configuration for fixing can be determined as appropriate. The same applies to the second and third embodiments.

  In the case-accommodating projection apparatus 1 in the first embodiment, when the screen 30 is extended, the area of the screen 30 is configured to be larger than the inner area of the upper case 12. However, the present invention is not limited to this, and the area of the screen when the screen is extended may be equal to or smaller than the inner area of the upper case 12. By adopting such a configuration, when the screen is accommodated, it can be accommodated in a compact manner, and the case accommodating projection device 1 can be reduced in size. The same applies to the second and third embodiments.

  The case-accommodating projection device 1 in the first embodiment has a size that fits into a pocket of clothes when carried. However, the size is not limited to the size that can be inserted into the pocket, and may be any size that can be held and carried. This also applies to the second and third embodiments.

  In the case housing type projector 1 in the first embodiment, the screen 30 has a recess 303. However, the present invention is not limited to this, and a convex portion formed in a convex shape may be provided instead of the concave portion 303, and a reflective region or an absorption region may be formed on the convex portion. The same applies to the second and third embodiments.

  In the case-accommodating projection device 1 according to the first embodiment, the upper case 12 can be fixed (opened) at a tilted position, and the image light projected from the projector body 20 is projected onto the wall surface W or the like. I am letting. However, the present invention is not limited to this, and the upper case 12 may be detachably installed with respect to the lower case 11. In this configuration, the upper case 12 is removed from the lower case 11 (hinge 111), whereby the image light projected from the projector body 20 can be projected onto the wall surface W or the like. The same applies to the second and third embodiments.

  In the case-accommodating projection device 1 according to the first embodiment, the leg portion 112 </ b> B has a shaft portion 1121 and is installed to be extendable and contractable to incline the main body case 10. However, the present invention is not limited to this, and the leg portion may be configured to be able to stand and tilt, and the main body case 10 may be tilted. The same applies to the second and third embodiments.

  The case-accommodating projection device 1 in the first embodiment has the leg 112 installed and placed on the desk surface D or the like, but is not limited thereto, and the leg 112 may not be installed. The lower case 11 may be placed on the desk surface D as it is. The same applies to the second and third embodiments.

  In the case-accommodating projection device 2 according to the second embodiment, the screen 40 is biased to the right when it is extended. Therefore, the positions of the projection lens 23 and the mirror 24 of the projector main body 20 according to the present embodiment are moved to the right so that the support shaft 41 is substantially at the center. However, the present invention is not limited to this, and the position of the projector body 20 may be positioned at the center in the left-right direction of the lower case 11 and reflected by rotating the mirror 24 in the right direction as in the first embodiment. In this case, since the image light is incident on the screen 40 from the left direction, the image processing unit and the liquid crystal panel 22 inside the projector main body 20 project and perform the trapezoidal correction process on the image light in the left-right direction. An image adapted to the shape of the screen 40 can be displayed. This also applies to the third embodiment.

  In the case-accommodating projection apparatus 1 according to the first embodiment, the screen 30 has a recess 303 in the reflection surface 302, and a reflection region 303A and an absorption region 303B are formed in the recess 303. However, the present invention is not limited to this, and a reflective region or an absorption region may be formed on the surface of the screen base material 301 without forming the concave portion 303. The same applies to the second and third embodiments.

  In the case-accommodating projection apparatus 1 according to the first embodiment, the screen 30 includes a reflection area 303 </ b> A and an absorption area 303 </ b> B on the reflection surface 302. However, the present invention is not limited to this, and the entire reflection surface 302 may be a reflection region. The same applies to the second and third embodiments.

  In the case-accommodating projection apparatus 1 according to the first embodiment, aluminum is deposited on the reflective surface 302 of the screen 30 as the reflective region 303A. However, the present invention is not limited to this, and the reflection region may be any as long as it reflects the projection light. For example, other metal films, white or silver paint, various beads (for example, glass) Application of powder) may be used. Further, the surface of the screen base material 301 may be formed with irregularities of lenticular lenses. The same applies to the second and third embodiments. Moreover, although the absorption area | region uses the black vinyl chloride resin, it is not restricted to this, What is necessary is just to absorb unnecessary external light, For example, you may use a black coating material, a metal membrane | film | coat, etc. The same applies to the second and third embodiments.

  In the case-accommodating projection apparatus 1 according to the first embodiment, the reflection region 303A is formed by vapor-depositing aluminum from an oblique direction, and the absorption region 303B uses a black screen base material 301. However, the present invention is not limited to this, and the absorbing region may be similarly formed by using the black screen base material 301, and the reflecting region may be formed by performing white coating on the screen base material 301 from an oblique direction. Alternatively, the reflection region and the absorption region may be formed by performing a white coating on the entire screen substrate 301 and then selectively peeling off the white coating by applying a laser beam from an oblique direction. The same applies to the second and third embodiments.

  DESCRIPTION OF SYMBOLS 1, 2, 3 ... Case accommodation type projection apparatus, 10 ... Main body case, 11 ... Lower case, 12 ... Upper case, 20 ... Projector main body, 21 ... Light source device, 22 ... Liquid crystal panel, 23 ... Projection lens, 24 ... Mirror , 30, 40, 50 ... screen, 41 ... support shaft, 52 ... slide part, 112B ... leg part, 302 ... reflecting surface, 303 ... recessed part, 303A ... reflecting area, 303B ... absorbing area.

Claims (7)

A projector body that projects image light;
A main body case for housing the projector main body,
The body case is
A lower case for accommodating the projector body in a predetermined position;
An upper case that can be opened and closed with respect to the lower case;
A case-accommodating type projection apparatus, wherein a screen having a reflective surface for reflecting the image light projected from the projector main body is installed inside the upper case so as to be extendable. It is a case accommodation type projection device according to claim 1, Comprising:
When the screen is extended, the area of the screen is larger than the inner area of the upper case. The case housing type projection device according to claim 1 or 2,
The lower case includes a leg portion that inclines the main body case. It is a case accommodation type projection device according to any one of claims 1 to 3,
The case housing is characterized in that the upper case is installed so as to be open so as to be out of the optical path of the image light projected from the projector main body and / or to be detachable from the lower case. Mold projection device. It is a case accommodation type projection device according to any one of claims 1 to 4,
The case-contained projection device, wherein the reflective surface of the screen includes a reflective region that reflects the image light projected from the projector main body and an absorption region that absorbs external light. It is a case accommodation type projection device according to claim 5,
The reflective surface has a plurality of concave portions or convex portions,
The case-accommodating type projection device, wherein the reflection region and the absorption region are formed in the plurality of concave portions or convex portions. It is a case accommodation type projection device according to any one of claims 1 to 6,
The case-contained projection device, wherein the screen is configured by any one of a rotation mechanism, a slide mechanism, and a folding mechanism.

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