JPH0678844A - Production of gold mirror for ornamentation - Google Patents

Abstract

PURPOSE:To provide the attractive gold mirror having unique colors by forming a thin film of gold, etc., as a reflection film on a transparent plate, forming a pattern of a graphic, character, etc., by a metallic mask method, etc., on this film and forming a thin gold to the extent of allowing slight transmission of light or a thin film on essentially consisting of the gold over the entire surface of the thin film part and the patterned part. CONSTITUTION:A metallic mask 2 of the pattern desired to be formed, for example, a star shape, is placed on a glass wafer 1 and the gold thin film 3 is formed by a sputtering method. The metallic mask 2 is then removed to form the part (exposed glass part) 4 of the start shape where the light is transmitted. The gold thin film 5 as thin as the light is slightly transmitted in the star-shaped part is then formed by sputtering over the entire surface of the thin film 3 of the gold and the star-shaped part 4. A protective film 6 of silicon is thereafter formed by sputtering on this gold thin film 5, by which the gold mirror for ornamentation having the star-shaped translucent part is obtd.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a decorative gold mirror.

[0002]

2. Description of the Related Art A general mirror uses a transparent plate such as glass with a metal film as a reflection film. Since such a mirror simply reflects, the outer shape is given a desired shape for decoration, and a decoration frame is fitted around the outer shape. However, such a mirror is visually unattractive because the mirror itself is not decorative.

[0003]

Therefore, the present invention provides a method for producing a visually appealing decorative gold mirror which has a high added value as a decorative article and has a decorative property on the mirror itself. It is the one we are trying to provide.

[0004]

In order to solve the above-mentioned problems, a method of manufacturing a decorative gold mirror of the present invention comprises forming a gold thin film or another metal thin film as a reflecting film on a transparent plate such as glass and forming a metal. Create a pattern of the required pictures, figures, characters, etc. by the mask method or etching method, and then apply thin gold or a thin film containing gold as a main component to the entire surface of the thin film part and the pattern part so that light is slightly transmitted. It is characterized by forming.

[0005]

The ornamental gold mirror produced by the above manufacturing method reflects light in the same manner as an ordinary mirror, but when the reflection film is a gold thin film, a unique color image can be obtained. When the back surface is strong, the pattern part is transparent to green when it is a gold thin film (when a thin film containing gold as a main component is used, it is transparent to other colors).
Pictures, figures, letters, etc. stand out and become artistic with added value.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method of manufacturing a decorative gold mirror of the present invention will be described with reference to the drawings. As shown in FIG. 1, a desired pattern, a star shape in this case, is formed on a glass wafer 1 having a diameter of 5 inches. A metal thin film 3 of 1000 Å was formed by the sputtering method as shown in FIG. Next, as shown in FIG. 3, the metal mask 2 is removed, and as shown in FIG. 4, a star-shaped portion (glass exposed portion) 4 that allows light to pass therethrough.
Was formed. Then, as shown in FIG. 5, a 1500 Å gold thin film 5 was formed on the entire surface of the gold thin film 3 and the star-shaped portion 4 by sputtering so that the gold thin film 5 was thin enough to allow light to slightly pass through the star-shaped portion. Then, a silicon protective film 6 having a thickness of about 300Å is formed on the gold thin film 5 by sputtering as shown in FIG. 6 to obtain a decorative gold mirror 7 having a star-shaped semi-transparent portion 4'as shown in FIG. .

Next, another embodiment will be described with reference to the drawings.
As shown in FIG. 8, a 1000 Å gold thin film 3 was formed on the entire surface of a glass wafer 1 having a diameter of 5 inches by a sputtering method. Next, as shown in FIG. 9, a photosensitive resist 8 was patterned on the gold thin film 3 to form a star-shaped opening 9.
Then, as shown in FIG. 10, the gold thin film 3 in the star-shaped opening 9 is etched, the photosensitive resist 8 is peeled off as shown in FIG. 11, and the star-shaped portion for transmitting light as shown in FIG. (Glass exposed portion) 4 was formed. Thereafter, the same steps as those of FIGS. 5 to 7 similar to those of the above-described embodiment were performed to obtain a decorative gold mirror 7 having a star-shaped semi-transparent portion 4 '.

The decorative gold mirror 7 obtained in the above two embodiments is
When you hold it normally (like looking into a hand mirror), it reflects light, but since the reflecting surface is gold, you can obtain an image of unique color. Also, when the light from the back is strong, that is, when you hold it up to the lighting or the brightness of a cloudy sky,
The star-shaped semi-transparent part 4'is transparent and visible in green.
The appearance also became an artistic thing like stained glass. Although the gold thin films 3 and 5 and the silicon protective film 6 are formed by sputtering in the above embodiments,
It may be formed by vapor deposition. In addition, although the first layer is the gold thin film 3 in each of the above-mentioned embodiments, since light other than the pattern is shielded, the amount of gold used can be reduced by using another metal such as palladium or chrome to reduce the cost. It may be reduced. Further, in the above embodiment, the decorative gold mirror 7 having the simple star-shaped semi-transparent portion 4'is manufactured, but the pattern may be not only a figure but also a picture or a character, and the pattern is not limited to a single color. is not. For example, before forming the gold thin film 5 of the second layer, patterning is performed several times while adjusting the film thickness by a new metal mask method or an etching method to form a complicated shaded pattern. , The pattern itself may be blurred. At this time, by using some gold alloys having different compositions without using gold for the intermediate layer formed in the pattern, patterns having different colors appear when transmitting light.

[0009]

As described above, according to the method for manufacturing a decorative gold mirror of the present invention, light is reflected in the same manner as an ordinary mirror, and in the case where the reflection film is a gold thin film, a unique color image is obtained. Therefore, when the back light is strong, the pattern part can be seen through and floated up, and the mirror itself has decorative properties, and it is easy to obtain a visually attractive artistic gold mirror. is there.

[Brief description of drawings]

FIG. 1 is a diagram showing a process of an embodiment of a method of manufacturing a decorative gold mirror of the present invention.

FIG. 2 is a diagram showing steps of an embodiment of a method for manufacturing a decorative gold mirror of the present invention.

FIG. 3 is a diagram showing steps of an embodiment of a method for manufacturing a decorative gold mirror of the present invention.

FIG. 4 is a diagram showing steps of an embodiment of a method for manufacturing a decorative gold mirror of the present invention.

FIG. 5 is a diagram showing steps of an embodiment of a method for manufacturing a decorative gold mirror of the present invention.

FIG. 6 is a diagram showing steps of an embodiment of a method for manufacturing a decorative gold mirror of the present invention.

FIG. 7 is a diagram showing steps of an embodiment of a method for manufacturing a decorative gold mirror of the present invention.

FIG. 8 is a diagram showing a pattern forming step in another embodiment of the method for manufacturing a decorative gold mirror of the present invention.

FIG. 9 is a diagram showing a pattern forming step in another embodiment of the method for manufacturing the decorative gold mirror of the present invention.

FIG. 10 is a diagram showing a pattern forming step in another example of the method for manufacturing the decorative gold mirror of the present invention.

FIG. 11 is a diagram showing a step of pattern formation in another example of the method for manufacturing the decorative gold mirror of the present invention.

[Explanation of symbols]

 1 Glass Wafer 2 Metal Mask 3 Gold Thin Film 4 Light Transmitting Pattern (Star Shape) 4'Semi-Transparent Part 5 Gold Thin Film 6 Silicon Protective Film 7 Decorative Gold Mirror 8 Photosensitive Resist 9 Opening

Claims (1)

[Claims] 1. A gold thin film or other metal thin film is formed as a reflective film on a transparent plate such as glass, and a pattern such as a desired picture, figure or character is formed by a metal mask method or an etching method, and then a thin film is formed. A method for manufacturing a decorative gold mirror, which comprises forming thin gold or a thin film containing gold as a main component so that light is slightly transmitted, over the entire surface of the portion and the pattern portion.