Moving image generating apparatus

Abstract

To provide a miniaturized moving image generation device.SOLUTION: A moving image generation device (10) includes a light source (14) that emits light, a plurality of image generation members (11) capable of generating an image by transmitting light, and a switching unit (12) capable of switching the image generation members (11) placed in an optical path of the light. The plurality of image forming members (11) are arranged annularly. The switching unit (12) includes a rotating body (20) that supports the plurality of image generating members (11) arranged in an annular shape and is rotatable, and a driving unit (40) that drives the rotating body (20). The light source (14) is located inside the rotating body (20) (in the space (80)).SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a moving image generating device that generates moving images by switching between images placed in an optical path. [Background technology]

[0002] It is known that an image can be generated by transmitting light through a member on which characters, figures, etc. are printed. A technology for generating such an image is disclosed in Patent Document 1.

[0003] The image generating device disclosed in Patent Document 1 includes a light source that emits light, a light-transmitting plate that transmits the light in an arrow shape, a shielding plate that is arranged parallel to the light-transmitting plate and can block part of the light that has transmitted through the light-transmitting plate, and a rotation mechanism that can rotate the shielding plate. When the shielding plate is rotated by the rotation mechanism, the projected arrow image can be deformed or displaced. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-122158 Summary of the Invention [Problem to be solved by the invention]

[0005] Based on such technology, it is conceivable to generate moving images by preparing multiple image generating elements, switching the image generating elements placed in the optical path of the light emitted by the light source, and successively generating different images, but it is desirable to make the system as compact as possible.

[0006] An object of the present invention is to provide a miniaturized moving image generating device. [Means for solving the problem]

[0007] In a first aspect, a light source that emits light, a plurality of image generating members that can generate images by transmitting the light, and a switching unit that can switch the image generating members that are placed in the optical path of the light, A video can be generated by successively switching between the images; the plurality of image-producing members are arranged in an annular configuration; the switching unit includes a rotating body that supports the plurality of image generating members that are arranged in an annular shape and is rotatable, and a driving unit that drives the rotating body; A moving image production device is provided, in which the light source is located inside the rotating body.

[0008] In a second aspect that may be dependent on the first aspect, a moving image generation device includes: A fan that generates airflow, a case that houses the light source, the plurality of image generating members, the switching unit, and the fan; the fan is located inside the rotor, The case has a vent hole formed therein that connects the inside and outside of the case and allows air to circulate.

[0009] In a third aspect that may be dependent on the second aspect, there is provided a moving image generation device, the rotating body has an annular support portion that supports the plurality of image-generating members, and a connecting portion that connects the support portion to a shaft portion that serves as a rotation center, The connecting portion is provided with blades of the fan.

[0010] In a fourth aspect that may be dependent on the third aspect, there is provided a moving image generation device, The connection portion is composed of a plurality of rod-shaped portions extending radially from the shaft portion toward the support portion.

[0011] A moving image generating device according to a fifth aspect which may be dependent on the third or fourth aspect, a detachable member that is detachable from the support portion of the rotating body, The image generating member is supported by the support portion via the detachable member. [Effects of the Invention]

[0012] The present invention can provide a miniaturized moving image generating device. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view of a moving image generating device according to an embodiment. [Figure 2] 2 is a perspective view of a light source, a switching unit, and a lens barrel provided in a case of the moving image production device shown in FIG. 1. FIG. [Figure 3] Figure 3A is a perspective view of a rotating body supporting an image-producing member, and Figure 3B is a perspective view of the rotating body viewed from the opposite side to the direction shown in Figure 3A. DETAILED DESCRIPTION OF THE INVENTION

[0014] The following description of the embodiments will be given with reference to the accompanying drawings. Note that the embodiments described herein are not intended to limit the scope of the present invention. Furthermore, the elements constituting each embodiment can be combined as appropriate.

[0015] 1 and 2, a moving image generating device 10 according to the embodiment includes a light source 14 that emits light, a plurality of image generating members 11 that can generate images by transmitting light, a switching unit 12 that can switch between image generating members 11 placed in the optical path of the light, and a lens barrel 13 that can emit light that displays an image onto a wall, floor, or the like.

[0016] (Case 30) The light source 14, the multiple image generating members 11, the switching unit 12, and the lens barrel 13 are housed in a case 30. A well-known case 30 can be used, and may, for example, be comprised of a block-shaped box 31 with one side open, and a lid 32 that can close the opening of the box 31. Although not shown, the box 31 and the lid 32 may be fixed together by screws that pass through the overlapping portions of the edges of the lid 32 and the box 31.

[0017] (Switching unit 12) The switching unit 12 supports a plurality of image generating members 11 and includes a rotatable rotor 20 and a drive unit 40 capable of driving the rotor 20. The drive unit 40 includes an electric motor 41 as a drive source, a gear 42 provided on the output shaft of the electric motor 41, a gear 43 that meshes with the gear 42, a shaft member 44 that is positioned concentrically with the gear 43 and rotates together with the gear 43, and bearings 45, 45 that support both ends of the shaft member 44.

[0018] (rotating body 20) 3A and 3B, the rotating body 20 has a shaft portion 21 through which the shaft member 44 can pass, and a support portion 22 that supports a plurality of (e.g., eight) image generating members 11 arranged in a ring shape. A space 80 is formed inside the rotating body 20 that supports the image generating members 11.

[0019] (Support part 22) The support portion 22 has an annular base portion 23 concentric with the shaft portion 21, and a plurality of arms 24 extending from the base portion 23 in the direction of the axis CL of the shaft portion 21. The arms 24 are arranged at equal intervals in the circumferential direction. The shape of the base portion 23 (octagonal in this embodiment) and the number of arms 24 (eight in this embodiment) can be changed as appropriate to match the number of image generating members 11.

[0020] (detachable member 50) The image generating member 11 is supported by the support part 22 via a detachable member 50. The detachable member 50 is detachable from two arm parts 24, 24 that are adjacent to each other in the circumferential direction of the rotating body 20.

[0021] The detachable member 50 comprises a pair of plate-like members 51, 51 sandwiching the film-like image-generating member 11 therebetween, and fixing members 52 that fix the edges of each plate-like member 51. Each plate-like member 51 is formed with an exposure hole 53 through which the image-generating member 11 is exposed.

[0022] The edges of each plate-like member 51 are stepped to form grooves. Each groove can slide along a protrusion formed on the arm 24. If the image-generating member 11 has a predetermined thickness, the support 22 may directly support the image-generating member 11 without providing the detachable member 50.

[0023] (Connection 60) The shaft portion 21 and the support portion 22 are connected by a connecting portion 60. The connecting portion 60 is configured, for example, by a plurality of rod-shaped portions 61 (portions corresponding to spokes) extending radially from the shaft portion 21 toward the base portion 23 of the support portion 22.

[0024] Each arm portion 24 and each rod-shaped portion 61 are located at the same position relative to the circumferential direction of the rotating body 20. The number of rod-shaped portions 61 may be changed regardless of the number of arms 24. Note that the connecting portion 60 may be, for example, fan-shaped, having a predetermined dimension in the circumferential direction.

[0025] (Fan 70) Each rod-shaped portion 61 is provided with blades 71 of a fan 70 that can generate an airflow inside the case 30. Each blade 71 is inclined with respect to the direction of the axis CL. The blades 71 are shaped like a plate with a thickness that is approximately the same as that of the rod-shaped portion 61. The fan 70 and the rotor 20 are integrally formed. Note that the fan 70 and the rotor 20 are not limited to being integrated, and a general cooling fan may be provided.

[0026] (Ventilation hole 32a) Referring to Fig. 1, the box 31 has a pair of support walls 32 and 33 to which bearings 45 are fixed. The support wall 32 has an air hole 32a formed therein, which connects the inside and outside of the box 31.

[0027] (Effects of the Example) The first moving image creation device 10 The device comprises a light source 14 that emits light, a plurality of image generating members 11 that can generate images by transmitting light, and a switching unit 12 that can switch the image generating members 11 placed in the optical path of the light, and is capable of generating a moving image by continuously switching between images; The plurality of image-producing members 11 are arranged in an annular shape, The switching unit 12 supports a plurality of image generating members 11 arranged in an annular shape and includes a rotatable rotating body 20 and a driving unit 40 that drives the rotating body 20. The light source 14 is located inside the rotating body 20 (space 80).

[0028] The space 80 inside the rotating body 20 is considered dead space, and the light source 14 is placed in this space 80. This makes it possible to provide a compact moving image generating device 10. In addition, by arranging multiple image generating members 11 in a ring shape, the number of image generating members 11 supported by the rotating body 20 can be increased, thereby improving the ability to reproduce moving images.

[0029] Second, in the first moving image production device 10, a fan 70 that generates airflow; a case (30) that houses a light source (14), a plurality of image generating members (11), a switching unit (12), and a fan (70); The fan 70 is positioned inside the annular array of image-producing members 11. The case 30 is formed with an air vent 32a that connects the inside and outside of the case 30 and allows air to pass through.

[0030] The area inside the rotor 20 (space 80) is considered dead space, and by placing the fan 70 in this space 80, it is possible to provide a compact moving image generating device 10. By generating an airflow inside the case 30 and providing the case 30 with the ventilation holes 32a, heat inside the case 30 can be efficiently exhausted.

[0031] Third, in the second moving image production device 10, The rotating body 20 has an annular support portion 22 that supports a plurality of image generating members 11, and a connecting portion 60 that connects the support portion 22 and a shaft portion 21 that serves as a rotation center. The connecting portion 60 is provided with blades 71 of a fan 70 .

[0032] The rotor 20 itself is a fan 70. By controlling the rotation speed of the drive source, the rotation speed of the rotor 20 can be changed, and the cooling performance of the fan 70 can also be changed at the same time. The blades 71 and the connecting portion 60 of the fan 70 may be formed integrally, or may be formed separately and fixed to each other.

[0033] Fourth, in the third moving image production device 10, The connecting portion 60 is composed of a plurality of rod-shaped portions 61 extending radially from the shaft portion 21 toward the support portion 22 . Compared to a shape having a predetermined width in the circumferential direction, such as a sector shape, by configuring the connection portion 60 with a plurality of rod-shaped portions 61, the weight of the rotating body 20 can be reduced.

[0034] Fifth, in the third or fourth moving image production device 10, a detachable member (50) that is detachable from the support portion (22) of the rotating body (20); The image generating member 11 is supported by a support portion 22 via a detachable member 50 .

[0035] When replacing the image generating member 11, the detachable member 50 is removed from the support part 22, and the detachable member 50 with the replaced image generating member 11 is attached to the support part 22. This makes it easier to replace the image generating member 11 compared to a configuration in which the support part 22 directly supports the image generating member 11. [Explanation of symbols]

[0036] 10...Video generation device 11...Image-generating member 12...Switching section 20...Rotating body 21...Shaft 22...Support part 30…cases 32a...vent hole 40...Drive unit 50...Detachable member 60...Connection 61...rod-shaped part 70...Fan 71...Feathers 80…Space

Claims

1. a light source that emits light; a plurality of image generating members that can generate images by transmitting the light; and a switching unit that can switch the image generating members that are placed in the optical path of the light; A video can be generated by successively switching between the images; the plurality of image-producing members are arranged in an annular configuration; the switching unit includes a rotating body that supports the plurality of image generating members that are arranged in an annular shape and is rotatable, and a driving unit that drives the rotating body; The moving image generating device, wherein the light source is located inside the rotating body.

2. A fan that generates airflow, a case that houses the light source, the plurality of image generating members, the switching unit, and the fan; the fan is located inside the rotor, The moving image generating device according to claim 1 , wherein the case has a vent hole formed therein that connects the inside and outside of the case and allows air to circulate.

3. the rotating body has an annular support portion that supports the plurality of image-generating members, and a connecting portion that connects the support portion to a shaft portion that serves as a rotation center, The moving image generating device according to claim 2 , wherein the connecting portion is provided with blades of the fan.

4. The moving image generating device according to claim 3 , wherein the connection portion is configured by a plurality of rod-shaped portions extending radially from the shaft portion toward the support portion.

5. a detachable member that is detachable from the support portion of the rotating body, 5. The moving image generating device according to claim 3, wherein the image generating member is supported by the support portion via the detachable member.

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