Light processing device

Abstract

To improve reproductivity of light resembling sunlight filtering through trees.SOLUTION: A light processing device 10 includes: a light diffusion structure 30 for diffusing light from a light source 20; a plurality of thin film belt-like bodies 40 provided swingably; and swing means for swinging the plurality of thin film belt-like bodies 40, and the plurality of thin film belt-like bodies 40 are provided at any position on an optical path before light is radiated. Thereby, the light passing through a portion at which the plurality of thin film belt-like bodies 40 are provided is partially shielded by the thin film belt-like bodies 40 irregularly exhibiting various movements and passes through a gap in which the plurality of thin film belt-like bodies 40 swing. By such a processing, presentation of light resembling sunlight filtering through trees as if the light passes through a gap of tree leaves swinging by wind can be reproduced, so as to improve reproductivity of light of sunlight filtering through trees, together with a diffusion action of light by the light diffusion structure 30.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a light processing device that processes light from a light source and then emits the processed light. [Background technology]

[0002] In the field of daylighting devices and lighting devices, attempts are being made to not only emit the light necessary for daily life, but also to create various effects using light. For example, the light generating device disclosed in Patent Document 1 uses light reflecting materials and the like to reproduce light that looks like sunlight filtering through the trees. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5294752 Summary of the Invention [Problem to be solved by the invention]

[0004] Here, in the above-mentioned conventional light generating device, because a light reflecting member is used, glare occurs due to reflected light, and the amount of light is reduced by the amount of light that is reflected and not emitted. Also, even if the light reflecting member is swayed, the swaying occurs regularly due to the rigidity of the light reflecting member, so there is room for improvement to make it closer to a more natural sunlight filtering through the trees. The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to improve the reproducibility of light such as sunlight filtering through the trees. [Means for solving the problem]

[0005] (Modes of the Invention) The following aspects of the invention are illustrative of the configuration of the present invention, and are described in terms of items to facilitate understanding of the various configurations of the present invention. Each item does not limit the technical scope of the present invention. Therefore, while taking into consideration the best mode for carrying out the invention, even if some of the components of each item are replaced or deleted, or other components are added, they may be included in the technical scope of the present invention.

[0006] (1) A light treatment device that processes light from a light source and radiates it, comprising: a light diffusion structure that diffuses the light from the light source; a plurality of thin film strips that are arranged to be oscillating; and a rocking means for rocking the plurality of thin film strips, wherein the plurality of thin film strips are arranged at any position on the optical path until the light is emitted.

[0007] The light processing device described in this section processes and radiates light from a light source such as natural light or artificial lighting, and includes a light diffusion structure, a plurality of thin film strips, and a swinging means. The light diffusion structure is for diffusing light from the light source, and is structured and arranged to achieve this. The thin film strips are installed so as to be swingable in any manner, for example, with one end side fixed and hanging down, and the swinging means is installed to swing the thin film strips thus installed. Therefore, each of the thin film strips exhibits various irregular movements, such as different movements between one end side and the other end side, wave-like movements, and twisted movements, due to the swinging means.

[0008] The thin film strips are installed at any position on the light path until the light is emitted from the light processing device, such as a position just before the light from the light source enters the light diffusion structure, inside the light diffusion structure, and a position where the light is emitted from the light diffusion structure. As a result, the light passing through the installation points of the thin film strips is partially blocked by the thin film strips that exhibit irregular and various movements, and passes through the swaying gaps of the thin film strips. This process reproduces a light effect that is as if sunlight was filtering through the gaps between the branches and leaves of a tree swaying in the wind, and combined with the light diffusion effect of the light diffusion structure, the degree of reproduction of light that is like sunlight filtering through the trees is improved. Moreover, unlike the case of using a conventional light reflecting member, glare caused by reflected light is prevented.

[0009] (2) The optical treatment device according to the above item (1), wherein the rocking means is a blower disposed to face the thin film strips. In the light processing device described in this section, the rocking means for rocking the thin film strips is a blower that is installed facing the thin film strips, so that the thin film strips exhibit various different movements depending on the angle at which the wind hits them and the strength of the wind, which differ depending on the installation position of each of the thin film strips. Furthermore, since the thin film strips are rocked by the wind, they move more like the branches and leaves of a tree rocked by the wind, and if the wind direction is changed by the swing function of the blower, the thin film strips will rock more irregularly. This improves the reproduction of light like sunlight filtering through the trees.

[0010] (3) The optical processing device according to the above item (1), wherein the thin film strips are made of a transparent or semi-transparent material. In the light processing device described in this section, the thin film strips are made of a transparent or semi-transparent material, so that the light that reaches the thin film strips is not completely blocked, but at least partially passes through the thin film strips and advances. As a result, in addition to the light that passes through the gaps between the thin film strips, the light that passes through the thin film strips is also emitted, so that the amount of light that is ultimately emitted is increased compared to, for example, a conventional structure that uses a light reflecting member that reflects and blocks light.

[0011] (4) The optical processing device according to the above item (1), wherein the thin film strips are attached to a rod-shaped elastic body having at least one fixed end. In the light processing device described in this section, the thin film strips are attached to a rod-shaped elastic body, and at least one end of the rod-shaped elastic body to which they are attached is fixed. Therefore, when the thin film strips are swung by the swinging means, the rod-shaped elastic body also swung, which imparts more irregular swinging to the thin film strips. Therefore, the light passing through the locations where the thin film strips are installed is given the effect of passing through the gaps between the branches and leaves of a more natural tree, and the reproduction of light like sunlight filtering through the trees is further enhanced. Effect of the Invention

[0012] Since the present invention is configured in this way, it is possible to improve the reproducibility of light such as sunlight filtering through the trees. [Brief description of the drawings]

[0013] [Figure 1] 1 is a block diagram showing an example of a configuration of an optical processing device according to an embodiment of the present invention; [Diagram 2] 1 is a perspective view showing an example of a light diffusing structure used in a light treatment device according to an embodiment of the present invention; [Diagram 3] 1 is a conceptual diagram showing an example of installation of a plurality of thin film strips used in an optical treatment device according to an embodiment of the present invention; [Figure 4]1 is a diagram illustrating an example of a positional relationship between a light source, a light diffusing structure, and a plurality of thin film strips in a light processing device according to an embodiment of the present invention; [Diagram 5] Continuing from FIG. 4, FIG. 5 is an image diagram illustrating the positional relationship between a light source, a light diffusing structure, and a plurality of thin film strips in the light processing device according to the embodiment of the present invention. [Figure 6] 5, is a diagram illustrating an example of a positional relationship between a light source, a light diffusing structure, and a plurality of thin film strips in a light processing device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Hereinafter, the same or corresponding parts will be indicated by the same reference numerals throughout the drawings. Furthermore, detailed description of the same or corresponding parts as those in the prior art will be omitted. 1 is a schematic diagram showing an example of the configuration of a light processing device 10 according to an embodiment of the present invention, which processes light from a light source 20 and then emits the processed light. The light source 20 may be either natural light from the sun or artificial lighting. For example, natural light may be light coming from a skylight or light whose direction has been changed by a reflector, and artificial lighting may be any lighting such as an LED or a fluorescent lamp.

[0015] As shown in FIG. 1, the light processing device 10 according to the embodiment of the present invention includes a light diffusion structure 30, a plurality of thin film strips 40, and a swinging means 50. The light diffusion structure 30 diffuses light incident from the light source 20 directly or through the plurality of thin film strips 40, and has a configuration as shown in FIG. 2, for example. The positional relationship between the light source 20, the light diffusion structure 30, and the plurality of thin film strips 40 will be described later. The light diffusion structure 30 shown in FIG. 2 is a vertical type that emits light incident from above downward, and has a configuration in which a plurality of mirror reflector louvers 32 are arranged in four layers inside a lidless and bottomless housing 36 whose inner surface is mirror-finished. For convenience of explanation, FIG. 2 shows one surface of the housing 36 on the left front side in the figure as a see-through view.

[0016] The multiple specular reflector louvers 32 (32A) in the topmost layer have a structure in which they are bent in an approximately dogleg shape and arranged in parallel, and are intended to adjust the amount of light incident from above into the light diffusion structure 30. That is, for example, when the light source 20 is natural light, the sun passes through a relatively high position in the summer, so the amount of light incident is adjusted to be reduced by reflecting a part of such light, and in the winter, the sun passes through a relatively low position, so the amount of such light is adjusted to be taken in as much as possible. The multiple specular reflector louvers 32 (32B) in the second layer from the top and the multiple specular reflector louvers 32 (32C) in the third layer from the top are arranged in parallel with approximately rectangular double-sided reflectors arranged approximately perpendicular to each other, forming a lattice-like filter. These multiple specular reflector louvers 32B and 32C play a role in dividing the light incident through the multiple specular reflector louvers 32A. The multiple specular reflector louvers 32 (32D) in the bottom layer have a structure in which they are folded roughly in an L-shape and arranged in parallel, and diffuse light that passes through the multiple specular reflector louvers 32B and 32C and emit it from the bottom side of the housing 36.

[0017] Each of the multiple specular reflector louvers 32 (32A to 32D) shown in Fig. 2 is made of, for example, mirror-finished aluminum or stainless steel, or resin or glass onto which a reflective film is attached or vapor-deposited. The inner surface of the housing 36 may also be formed in the same manner as the specular reflector louvers 32. 2 as long as it diffuses and emits incident light, it may have any configuration, such as one including only one row of specular reflector louvers 32 or one including a structure for diffusing light other than the specular reflector louvers 32. Furthermore, by arranging the specular reflector louvers 32 to change the direction of incident light, light incident from above may be emitted to the side, or light incident from the side may be emitted downward.

[0018] Returning to FIG. 1, the thin film strips 40 are intended to give the light an effect of sunlight filtering through the trees. For each of the thin film strips 40, a transparent or semi-transparent strip-shaped vinyl string made of, for example, polyethylene or polypropylene may be used, and so-called Suzuran Tape (registered trademark) may be used, although this is not limited thereto. In this case, a strip-shaped vinyl string may be split vertically and processed into a thin strip, and used as the thin film strips 40. The thin film strips 40 are installed in a swingable manner at any position on the optical path until the light is emitted from the optical processing device 10, and may be installed so that only one end of each is fixed and hangs down, as shown in FIG. 3, for example.

[0019] The thin film strips 40 shown in FIG. 3(a) are arranged and attached along the extension direction of the rod-shaped elastic body 60 so as to hang down from the rod-shaped elastic body 60, and the thin film strips 40 on the right side of the figure are longer than the thin film strips 40 on the left side of the figure depending on the height of the rod-shaped elastic body 60. The rod-shaped elastic body 60 to which they are attached has one end fixed to a fixing means 62, and is elastic so that it swings easily. Any elastic material may be used for the rod-shaped elastic body 60, and for example, a superelastic alloy may be used. The thin film strips 40 shown in FIG. 3(b) are arranged and fixed along the extension direction of the rod-shaped elastic body 60 in a bundled state of five, so as to hang down from the rod-shaped elastic body 60. The length of the thin film strips 40 depends on the height of the rod-shaped elastic body 60, and the thin film strips 40 included in the bundles at both ends are the shortest, and the thin film strips 40 included in the bundle at the center are the longest. The rod-shaped elastic body 60 to which the rod is attached has both ends fixed to fixing means 62, and because of its superelasticity, it swings easily.

[0020] In contrast, the thin film strips 40 shown in FIG. 3(c) are attached in a state of hanging down from the fixing means 62 in a state of being bundled into five bundles, and the thin film strips 40 of each bundle have approximately the same length. That is, the thin film strips 40 may be attached in a state of being loose, or in a state of being bundled into multiple bundles, or may be adjusted to any length, or may be attached to any attachment destination such as a rod-shaped elastic body 60. Furthermore, the thin film strips 40 are not limited to being fixed at only one end side, and may be, for example, fixed at both ends and hanging loosely between them, or fixed near the center and both ends hanging down, as long as they are installed so as to be able to swing, and thin film strips 40 of different modes may be combined. Furthermore, in FIG. 3, the thin film strips 40 are mainly arranged in the left-right direction in the figure, but they may also be arranged in a direction perpendicular to the paper surface of FIG. 3, depending on, for example, the direction of light incidence.

[0021] Returning to Fig. 1 again, the rocking means 50 is for rocking the thin film strips 40, and in this embodiment, is constituted by a blower that is installed facing the thin film strips 40. For this reason, the rocking means 50 constituted by a blower is installed at an appropriate position and orientation so as to efficiently rock the thin film strips 40, depending on the installation form of the thin film strips 40, and at this time, the orientation of the blower may be changed over time using the oscillating function of the blower. Note that the rocking means 50 is not limited to a blower, and may be, for example, a means that mechanically rocks the attachment point (such as the rod-shaped elastic body 60 shown in Fig. 3) of the thin film strips 40.

[0022] Next, the positional relationship between the light source 20, the light diffusing structure 30, and the thin film belts 40 will be described with reference to Figures 4 to 6. Note that the installation position of the rocking means 50 will not be mentioned here, but in any of the positional relationships shown in Figures 4 to 6, the rocking means 50 is installed in an appropriate position so as to efficiently rock the thin film belts 40, as described above. 4(a), a plurality of thin film bands 40 are provided below the light source 20 that emits light downward, and a light diffusion structure 30 that receives light from above and emits it downward is provided below that. As a result, the light from the light source 20 that enters from above passes through the plurality of thin film bands 40, is given an effect similar to sunlight filtering through the trees, and is then diffused by the light diffusion structure 30 and radiated downward.

[0023] In addition, in FIG. 4(b), a light diffusion structure 30 configured to emit light received from above downward is installed below the light source 20 that emits light downward, and a plurality of thin film strips 40 are attached inside the light diffusion structure 30. Therefore, the light from the light source 20 that enters from above passes through the light diffusion structure 30 with the plurality of thin film strips 40 attached inside, and is diffused and radiated downward. Note that when the plurality of thin film strips 40 are attached inside the light diffusion structure 30, they may be attached to any gap through which light passes in the light diffusion structure 30. In addition, in FIG. 4(c), a light diffusion structure 30 configured to emit light received from above downward is installed below the light source 20 that emits light downward, and a plurality of thin film strips 40 are further installed below the light diffusion structure 30. Therefore, the light from the light source 20 that enters from above is diffused by the light diffusion structure 30, passes through the plurality of thin film strips 40, and is radiated downward with an effect similar to sunlight filtering through the trees. That is, in each embodiment of Figure 4, the hanging thin film strips 40 are positioned such that light is incident from above, for example as shown in Figure 3, and the thin film strips 40 are positioned in front of, within, or behind the light diffusing structure 30.

[0024] Next, referring to FIG. 5(a), a plurality of thin film strips 40 are provided on the right side of the light source 20 that emits light to the right, and a light diffusion structure 30 configured to emit light received from the left to the right is provided on the right side of the thin film strips 40. Therefore, the light from the light source 20 that enters from the left passes through the plurality of thin film strips 40, is given an effect like sunlight filtering through the trees, and is then diffused by the light diffusion structure 30 and emitted to the right. Also, in FIG. 5(b), a light diffusion structure 30 configured to emit light received from the left to the right is provided on the right side of the light source 20 that emits light to the right, and a plurality of thin film strips 40 are attached inside the light diffusion structure 30. Therefore, the light from the light source 20 that enters from the left passes through the light diffusion structure 30 with the plurality of thin film strips 40 attached inside, is given an effect like sunlight filtering through the trees, is diffused, and is emitted to the right.

[0025] In FIG. 5(c), a light diffusion structure 30 configured to emit light received from the left to the right is provided on the right side of the light source 20 that emits light to the right, and a number of thin film strips 40 are provided on the right side of the light diffusion structure 30. Therefore, the light from the light source 20 that enters from the left is diffused by the light diffusion structure 30, passes through the thin film strips 40, and is emitted to the right with an effect like sunlight filtering through the trees. That is, in each embodiment of FIG. 5, the thin film strips 40 are suspended as shown in FIG. 3, and are positioned such that light is incident on them from the front or side, and the thin film strips 40 are provided in front of, inside, or behind the light diffusion structure 30. Note that when a number of thin film strips 40 are suspended, it is considered that the number of thin film strips 40 may be smaller in each embodiment of FIG. 5 in which light is incident on the thin film strips 40 from the front or side than in each embodiment of FIG. 4 in which light is incident on the thin film strips 40 from above.

[0026] Further, referring to FIG. 6(a), a plurality of thin film strips 40 are provided on the right side of the light source 20 that emits light to the right, and a light diffusion structure 30 configured to emit light received from the left downward is provided on the right side of the thin film strips 40. Therefore, the light from the light source 20 that enters from the left passes through the plurality of thin film strips 40, is given an effect like sunlight filtering through the trees, and is then diffused by the light diffusion structure 30 and radiated downward. Also, in FIG. 6(b), a light diffusion structure 30 configured to emit light received from the left downward is provided on the right side of the light source 20 that emits light to the right, and a plurality of thin film strips 40 are attached inside the light diffusion structure 30. Therefore, the light from the light source 20 that enters from the left passes through the light diffusion structure 30 with the plurality of thin film strips 40 attached inside, is given an effect like sunlight filtering through the trees, is diffused, and radiated downward.

[0027] 6(c), a light diffusion structure 30 configured to emit light received from the left downward is provided to the right of the light source 20 that emits light to the right, and multiple thin film strips 40 are provided further below that. Therefore, the light from the light source 20 that enters from the left is diffused by the light diffusion structure 30 and emitted downward, and then passes through the multiple thin film strips 40 to be radiated downward with an effect similar to sunlight filtering through the trees. That is, in each embodiment of FIG. 6, the light emission direction is changed by the light diffusion structure 30, and multiple thin film strips 40 are provided in front of, inside, or behind such a light diffusion structure 30. 4 to 6, the incident direction of light from the light source 20, the incident direction and exit direction of light with respect to the light diffusing structure 30, and the final emission direction of light from the light treatment device 10 may be any direction, such as downward or sideways. Furthermore, the thin film belts 40 may be disposed at any position on the optical path until the light is emitted from the light treatment device 10.

[0028] According to the embodiment of the present invention having the above configuration, the following effects can be obtained. That is, the light processing device 10 according to the embodiment of the present invention, as shown in FIG. 1, processes and radiates light from a light source 20 such as natural light or artificial lighting, and includes a light diffusion structure 30, a plurality of thin film strips 40, and a swinging means 50. The light diffusion structure 30 performs a diffusion process on the light from the light source 20, and is structured and arranged to achieve this (see, for example, FIG. 2). The thin film strips 40 are installed so as to be swingable in any manner, for example, as shown in FIG. 3, such that only one end of each is fixed and hangs down, and the swinging means 50 is installed so as to swing the thin film strips 40 thus installed. Therefore, the swinging means 50 causes each of the thin film strips 40 to exhibit various irregular movements, such as different movements between one end side and the other end side, wave-like movements, and twisted movements.

[0029] The thin film strips 40 are installed at any position on the light path until the light is emitted from the light processing device 10, such as a position just before the light from the light source 20 enters the light diffusion structure 30, inside the light diffusion structure 30, and a position where the light is emitted from the light diffusion structure 30 (see Figs. 4 to 6). As a result, the light passing through the installation points of the thin film strips 40 is partially blocked by the thin film strips 40 that exhibit irregular and various movements, and passes through the swaying gaps between the thin film strips 40. This process makes it possible to reproduce a light effect that looks like sunlight filtering through the gaps between the branches and leaves of a tree swaying in the wind, and in combination with the light diffusion effect of the light diffusion structure 30, it is possible to increase the degree of reproduction of light that looks like sunlight filtering through the trees. Moreover, unlike the case where a conventional light reflecting member is used, it is possible to prevent glare caused by reflected light.

[0030] In addition, in the light processing device 10 according to the embodiment of the present invention, the rocking means 50 for rocking the thin film strips 40 is a blower that is installed facing the thin film strips 40, so that the thin film strips 40 can be made to perform various different movements depending on the angle at which the wind hits and the strength of the wind, which differ depending on the installation positions of each of the thin film strips 40. Furthermore, since the thin film strips 40 are rocked by the wind, it is possible to more closely resemble the movement of tree branches and leaves rocked by the wind, and if the wind direction is changed by the swing function of the blower, the thin film strips 40 can be rocked more irregularly. This makes it possible to further improve the reproduction of light such as sunlight filtering through the trees.

[0031] Furthermore, in the light processing device 10 according to the embodiment of the present invention, the thin film strips 40 are formed of a transparent or semi-transparent material, so that the light that reaches the thin film strips 40 is not completely blocked, but part of it passes through the thin film strips 40 and travels, and part of it is reflected by the thin film strips 40. As a result, in addition to the light that passes through the gaps between the thin film strips 40, the light that passes through the thin film strips 40 can also be emitted, so that it is possible to increase the amount of light that is ultimately emitted compared to, for example, a conventional structure that uses a light reflecting member that reflects and blocks light. Moreover, the reproduction of light such as sunlight filtering through trees can be improved by the effect of part of the light being transmitted and reflected.

[0032] 3(a) and 3(b), the light processing device 10 according to the embodiment of the present invention has a plurality of thin film strips 40 attached to a rod-shaped elastic body 60, and at least one end of the rod-shaped elastic body 60 to which the thin film strips 40 are attached is fixed. Therefore, when the thin film strips 40 are swung by the swinging means 50, the rod-shaped elastic body 60 also swung, and this makes it possible to impart a more irregular swing to the thin film strips 40. This makes it possible to impart an effect to the light passing through the locations where the thin film strips 40 are installed, such that it passes through the gaps between the branches and leaves of a tree in a more natural way, and makes it possible to further increase the reproducibility of light such as sunlight filtering through the trees. [Explanation of symbols]

[0033] 10: light processing device, 20: light source, 30: light diffusion structure, 40: thin film strip, 50: swinging means, 60: rod-shaped elastic body

Claims

1. A light processing device that processes light from a light source and emits the processed light, a light diffusion structure that diffuses light from the light source; A plurality of thin film strips arranged to be capable of swinging; a rocking means for rocking the thin film strips, An optical processing device, characterized in that the plurality of thin film strips are disposed at any position on an optical path until light is emitted.

2. 2. The optical processing apparatus according to claim 1, wherein the swinging means is a blower disposed to face the thin film belts.

3. 2. The optical processing device according to claim 1, wherein the thin film strips are made of a transparent or semi-transparent material.

4. 2. The optical processing apparatus according to claim 1, wherein the thin film strips are attached to a rod-shaped elastic body having at least one end fixed thereto.

Images