Lithophane frame

Abstract

To provide a lithophane frame capable of improving the quality of an image formed by the lithophane. [Solution] The lithophane frame 100 comprises a housing 110, a slit frame 120, and an LED tape light 130. The housing is provided on the back side of the lithophane 200, and has a bottom surface 114 facing the lithophane. The slit frame is provided between the lithophane and the bottom surface inside the housing, has a front surface 122 facing the lithophane and a back surface facing the bottom surface, and has a plurality of slits 126 penetrating from the front surface to the back surface. The LED tape light 130 is provided in a spiral shape from the outside to the inside on the back surface of the slit frame, and has a plurality of LED elements 132 arranged along the length direction.

Description

[Technical field]

[0001] This specification discloses technology relating to lithophane frames. [Background technology]

[0002] A lithophane frame is a device that supports lithophane, a translucent plate on which an image is drawn by varying the thickness. By transmitting light from the back side of the lithophane, an image appears on the front side of the lithophane with shadows according to the thickness. Patent Document 1 describes a lithophane that can form a colored image by having multiple colored layers. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] GB Patent Application Publication No. 2376915 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to improve the quality of the images formed by the lithophane, it has been desired to improve the uniformity of the illumination that illuminates the lithophane. [Means for solving the problem]

[0005] One embodiment disclosed herein is a lithophane frame that supports a lithophane, a translucent plate on which an image is drawn by varying thickness. The lithophane frame includes: A housing provided on the back side of the lithophane and having a bottom surface facing the lithophane; a slit frame provided between the lithophane and the bottom surface inside the housing, the slit frame having a surface facing the lithophane and a back surface facing the bottom surface, the slit frame having a plurality of slits formed therein that penetrate from the surface to the back surface; an LED tape light having a plurality of LED elements arranged in a spiral shape from the outside to the inside on the back surface of the slit frame and arranged along the length direction; Equipped with. According to this type of lithophane frame, the light emitted from the multiple LED elements arranged in a spiral shape is reflected on the bottom surface of the case and passes through the slits, so that indirect light can be irradiated to the back side of the lithophane. This improves the uniformity of the illumination that irradiates the lithophane.

[0006] In the lithophane frame of the above-mentioned embodiment, the bottom surface may have an inclined surface inclined with respect to the lithophane and the LED tape light. The inclined surface may be provided at a position where the light emitted from the LED element is reflected to the lithophane through the slit. According to the lithophane frame of this embodiment, the efficiency of reflecting the light emitted from the LED element to the lithophane can be improved. As a result, the uniformity of the illumination that irradiates the lithophane with light can be further improved.

[0007] The technology disclosed in this specification is not limited to the form of a lithophane frame, but can also be realized in the form of parts of a lithophane frame, a manufacturing method for a lithophane frame, and the like. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a lithophane frame. [Diagram 2] FIG. 2 is an exploded perspective view showing a lithophane frame. [Diagram 3] FIG. 4 is an enlarged perspective view showing a detailed configuration of a slit frame. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] FIG. 1 is a perspective view showing a lithophane frame 100. FIG. 2 is an exploded perspective view showing the lithophane frame 100. FIG. 3 is an enlarged perspective view showing a detailed configuration of a slit frame 120. The lithophane frame 100 is a fixture that supports a lithophane 200. The lithophane 200 is a translucent plate on which an image is drawn by changing the thickness. The lithophane frame 100 includes a housing 110, a slit frame 120, and an LED tape light 130.

[0010] The housing 110 of the lithophane frame 100 is a component provided on the back side of the lithophane 200. The housing 110, when combined with the lithophane 200, forms a rectangular parallelepiped shape with the lithophane 200 as one surface. The housing 110 has a bottom surface 114 facing the lithophane 200.

[0011] The slit frame 120 of the lithophane frame 100 is a component provided between the lithophane 200 and the bottom surface 114 inside the housing 110. The slit frame 120 has a front surface 122 facing the lithophane 200 and a back surface 124 facing the bottom surface 114. The slit frame 120 has a plurality of slits 126 penetrating from the front surface 122 to the back surface 124. The back surface 124 of the slit frame 120 has a wall surface 125 that holds the LED tape light 130. The wall surface 125 is provided in a spiral shape from the outside to the inside of the slit frame 120. The wall surface 125 has a wiring port 125s and a plurality of windows 125w formed therein. The wiring port 125s is a portion that holds wiring to the LED tape light 130. The window 125w is a portion that passes light from the LED tape light 130.

[0012] The LED tape light 130 of the lithophane frame 100 is a belt-shaped lighting device. The LED tape light 130 has a plurality of LED elements 132 arranged along the length direction. The LED tape light 130 is provided on the back surface 124 of the slit frame 120 in a spiral shape from the outside to the inside.

[0013] In this embodiment, the bottom surface 114 of the housing 110 has an inclined surface 116 inclined with respect to the lithophane 200 and the LED tape light 130. The bottom surface 114 is provided at a position where the light emitted from the LED element 132 is reflected to the lithophane 200 through the slit 126. In other embodiments, the bottom surface 114 may be a uniform flat surface without the inclined surface 116.

[0014] According to the lithophane frame 100 described above, the light emitted from the multiple LED elements 132 arranged in a spiral shape is reflected by the bottom surface 114 of the housing 110 and passes through the slits 126, so that indirect light can be irradiated to the back side of the lithophane 200. This can improve the uniformity of the illumination that irradiates the lithophane 200 with light.

[0015] In addition, since the inclined surface 116 is provided on the bottom surface 114, it is possible to improve the efficiency of reflecting the light emitted from the LED element 132 to the lithophane 200. As a result, it is possible to further improve the uniformity of the illumination that irradiates the lithophane 200 with light.

[0016] The technology disclosed in this specification is not limited to the above-mentioned embodiment, example, and modification, and can be realized in various configurations without departing from the spirit thereof. For example, among the technical features in the above-mentioned embodiment, example, and modification, those corresponding to the technical features in each form described in the summary of the invention can be appropriately replaced and combined to solve some or all of the above-mentioned problems or to achieve some or all of the above-mentioned effects. In addition, technical features that are not described as essential in this specification can be appropriately deleted. [Explanation of symbols]

[0017] 100…Lithophane frame 110…Housing 114…Bottom 116…Slope surface 120…Slit frame 122…Surface 124…Back side 125…Wall 125s…Wiring port 125w…window 126…Slit 130…LED tape light 132...LED element 200…Lithophane

Claims

1. A lithophane frame supports a lithophane, a translucent plate on which an image is drawn by varying thickness. A housing provided on the back side of the lithophane and having a bottom surface facing the lithophane; a slit frame provided between the lithophane and the bottom surface inside the housing, the slit frame having a surface facing the lithophane and a back surface facing the bottom surface, the slit frame having a plurality of slits formed therein that penetrate from the surface to the back surface; an LED tape light having a plurality of LED elements arranged in a spiral shape from the outside to the inside on the back surface of the slit frame and arranged along the length direction; A lithophane frame.

2. 2. The lithophane frame of claim 1, The bottom surface has an inclined surface inclined with respect to the lithophane and the LED tape light, The inclined surface is positioned so as to reflect light emitted from the LED element through the slit toward the lithophane frame.

Images