JPH0518803Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a chandelier that utilizes color effects caused by light interference.

[Background Art] Colored chandeliers are generally colored by coloring the surface of the glass parts or by pre-coloring the glass fabric, but both methods increase the light absorption rate. This method has the disadvantage that the shine of the glass parts becomes dull, and because it is technically difficult to apply a variety of colors, it is usually only possible to obtain a single color.

There are also products that utilize the light refraction effect of glass parts, but the refractive index of the glass itself is not sufficient, and it is difficult to form a spectroscopic prism on the smooth curved surface of ordinary decorative glass parts. There were very few cases in which color effects could be obtained by refraction.

[Purpose of the invention] The present invention was devised in view of the above points, and its purpose is to obtain a complex colored pattern that shines in seven colors over a wide range on the curved surface of the glass part. The purpose is to provide a chandelier that exhibits a variety of luxurious decorative effects.

[Disclosure of the invention] The chandelier according to the invention has multiple thin films made of dichroic materials such as titanium oxide and magnesium fluoride on the surface of a transparent glass part that is arranged near the lamp and has an arbitrary three-dimensional shape. It is characterized by the fact that the thickness of the thin film is varied in accordance with the unevenness or slope of the surface of the glass part during the vapor deposition process. Accordingly, the hue of reflected light and transmitted light due to interference of the thin film layer changes depending on the location on the glass part.

[Example] Figure 1 shows an example of the present invention, in which a plurality of transparent glass parts 2 shaped into the shape of flower petals or the like are attached to the front of a white reflective plate 1 which also serves as a table. , an incandescent lamp 3 is disposed near the center thereof so as to protrude slightly ahead of the second group of glass parts. Further, on the surface of the glass part 2, as shown in FIG. 2, a plurality of thin film deposited layers 4 made of dichroic material are formed.

As the dichroic material, titanium oxide, magnesium fluoride, zinc sulfide, etc. are used, and two types of materials having different refractive indexes are alternately deposited in multiple layers by a vacuum deposition method. This method is normally used when manufacturing dichroic mirrors or dichroic filters, but since it does not require very precise control of film thickness, the equipment may be quite simple! By making the surface shape of the glass part 2 a three-dimensional curved surface, the thickness of the vapor deposited layer 4 becomes uneven depending on the location, as shown in FIG. 2, thereby making it possible to have a change in hue. It is something. Although the thickness of the vapor deposited layer 4 is exaggerated in the figure, it is actually about 1 to several microns.

Figure 3 shows an enlarged view of the vapor deposited layer 4 on the surface of the glass part 2. Of the white light incident from above, the light L in the band where each film thickness is around 1/4 wavelength is The primary reflected lights A from the interfaces between the thin films 4a, 4b, 4c, ... strengthen each other, and the secondary reflected lights B weaken the incident light L, so only specific colors are reflected and other wavelengths are For example, if the reflected light is yellow, the transmitted light will be blue, which is its complementary color, and if the transmitted light is red, the reflected light will be cyan, which is its complementary color. Therefore, if the film thickness changes continuously from place to place as described above, the reflected light and transmitted light will be separated into seven colors accordingly. Also, when the viewer moves, the color of the glass part 2 changes to seven colors depending on the viewing angle.

[Effects of the invention] As described above, the chandelier according to the invention is equipped with a petal-shaped transparent glass part in which each petal has a plurality of irregularities and a slope, and a dichroic material is applied to the surface of the glass part. In addition to forming a multi-layer thin film consisting of For example, the petal-shaped glass parts themselves are colored in rainbow colors by the reflected light, and at the same time behind them the silhouettes of rainbow-colored petals are drawn by the transmitted light, creating a gorgeous decorative effect. Moreover, since it does not depend on the coloring of the glass, there is almost no loss in the amount of light, and therefore the glass parts have the advantage of shining brightly like jewels and creating an extremely luxurious atmosphere.

[Brief explanation of the drawing]

FIG. 1a is a perspective view showing an embodiment of the present invention, FIG. 1b is a sectional view of the same, FIG. 2 is a sectional view of a main part of the same, and FIG. 1 is a white reflective plate, 2 is a glass part, 3 is a lamp, 4 is a vapor deposition layer, and 4a, 4b, 4c are thin films.

Claims (1)

[Scope of utility model registration request] Multiple thin films made of dichroic materials such as titanium oxide and magnesium fluoride are applied to the surface of a petal-shaped transparent glass part that is placed near the lamp and has complex irregularities and slopes on each petal. A chandelier characterized by vapor deposition and the thickness of this thin film being varied in accordance with the unevenness and slope of the surface of the glass part.