JPH01232902A - Imitate jewelry-like colored accessory - Google Patents

Abstract

PURPOSE:To obtain an accessory made to be imitate jewelry, which is seen in a different color when it is seen from a different direction, for two kinds of light beam produced by a method wherein a reflecting mirror is made at the surface which is not exposed on the outside (on the base side) and a coating film is formed for preventing reflection at the surface which is exposed on an artificially colored light-transmission body in a form of imitation jewelry. CONSTITUTION:A light transmission body (1) in a form of imitation jewelry consists of one surface (2) which is exposed on the outside and the other surface (3) which is not exposed (on the base side). The surface is covered with a coating film (4) and the rear is provided with a mirror (5) reflecting light. The interior (6) of the light transmission body (1) is an artificial transparent body, such as synthetic resin, glass and the like. For the transparent body being colored, the whole of it or a part of it may be colored. Since its interior (6) is transparent, it is seen through. As a whole, the light transmission body (1) is consequently seen like the colored object. It is possible to obtain a beautiful accessory since the colored-light (beam of color light) sent to the mirror face through the transparent body is reflected outward by the mirror (5) over again.

Description

[Detailed description of the invention] 【Technical field】

The present invention is an artificially constructed jewel-shaped colored ornament,
It emits beautiful colored rays that surpass those of jewelry made from natural materials, and depending on the direction you look at it, it appears to be a unique color.

[Prior art]

Natural gemstone materials are expensive, but even if they could be obtained in large quantities at low cost, the color of gemstones is due to the absorption of a portion of the light rays when they pass through the interior of the gemstone. However, other than that, it is not absorbed from the surface of the gemstone (
(not colored) white rays are reflected. There is no problem with white gemstones like diamonds, but problems arise with colored gemstones like rubies. That is, the light rays transmitted through the inside of the gemstone and emitted appear to shine as colored bright spots, and the light rays reflected from the surface appear to shine as white bright spots. This phenomenon is noticeable when the chroma of the gemstone is high and the lightness is low (dark).For example, in the case of deep red, the lightness is 3.5 degrees in the Munsell color system, the amount of light is only about 10%, and the white surface The beautiful colors are disrupted by reflected light. The presence of such interfering light rays due to surface reflected light (white light) has been thought to be an unavoidable phenomenon for colored gemstones processed from natural materials. Colored rays and white rays on gemstones
Until today, no one thought it strange that a seed ray exists and both of them sparkle together.

[Issue to be solved]

In the field of "gems," those made from natural materials were considered high-class, while those artificially imitated were considered low-class. If it were possible to artificially create more beautiful colors than products made from natural materials, people might prefer that pyrotechnic product.

[Means to solve the problem]

Contrary to the conventional wisdom that jewelry is sparkling, by creating a special ray of light that reflects from the surface, we can see that the light rays are partially absorbed (colored) after passing through the interior of the material. 5. There are two types of rays: colored rays that are reflected from the surface. A jewel-shaped decorative body with an "artificial" color that appears to have different colors depending on the viewing direction is obtained. The present invention is configured as follows. Namely. An artificial colored transparent material with a shape similar to a jewel is coated with a mirror surface for reflection on the surface that is not exposed to the surface (pedestal side), and an anti-reflection film is formed on the surface that is exposed to the surface to reduce the transmission of light through the transparent material. The color of the light beam has a hue H, and the anti-reflection film 1 reflects the residual reflected light beam having a tint, and is provided so that the hue H and the tint are different colors.

Embodiment 1 In FIGS. 1 and 2, reference numeral 1 indicates a transparent body formed in a jewel shape, 2 indicates a surface exposed to the surface, and 3 indicates a surface not exposed to the surface (base side). The layer 4 whose surface side is covered with an antireflection coating layer 4 is a thin film or a multilayer film having a thickness of, for example, a quarter of the wavelength of light, and the thickness is exaggerated in the figure. A mirror surface 5 that reflects light is provided on the back side. The mirror surface 5 is formed by a well-known method such as metal vapor deposition or sputtering. It can be formed by any method such as amalgam. The interior 6 of the transparent body 1 is made of, for example, synthetic resin or glass. It is an artificially created transparent body such as an artificial gemstone. The means for coloring the transparent body may be such that the entire transparent body is colored, or only a part of the transparent body may be colored. For example, if the upper surface of 6 (membrane 4 side) is colored and transparent, 1
For example, if the lower surface of 6 (mirror surface 5 side) is colored and transparent, 1) For example, if the lower surface of 6 is colored and transparent (for example, a colored filter is placed inside 6 in a sandwich-like manner)
Even if a colored part is placed anywhere on the transparent body 6, it will be visible because the transparent body 6 is transparent.
As a result, the entire transparent body 6 appears as a colored object. Since such an artificial transparent body cannot have a high refractive index like a diamond, it is not possible to rely solely on total reflection, and the amount of reflected light is increased by the single reflecting mirror 5. Colored light rays (hereinafter referred to as colored light rays) that pass through a transparent body and reach a mirror surface are emitted to the outside again by a reflecting mirror. As described on the next page, the antireflection film 4 is provided so as to reflect the residual reflected light having the hue kl. At the current state of the art, anti-reflection coatings cannot prevent 100% of light rays from being reflected, and some light rays are reflected without being prevented from being reflected. Generally, when designing an antireflection film, an arbitrary wavelength λ is selected from among the target light rays as a reference light beam, and the film is designed to produce the best antireflection effect for that wavelength λ. Therefore, at wavelengths far from the wavelength λ, reflected rays remain on the surface (hereinafter referred to as residual reflected rays). The present invention utilizes residual reflected light of wavelengths at which five reflections cannot be prevented, contrary to general antireflection films. For example, if the hue (hue) H of the light transmitted through the transparent body is deep red (near the wavelength 620 nm) as shown in Figure 7, the anti-reflection film 1 prevents reflection of the red region and the residual reflected light, 6
Design so that h appears in blue. If the transmitted light is blue (for example, around a wavelength of 470n11), the design is such that the blue light is prevented from being reflected and the residual reflection appears in red, as shown in FIG. The transmitted light is reddish-purple (e.g. wavelength 4
In the case of a mixture of wavelengths of 70 nm and 620 nm, as shown in FIG. 9, the design is such that red-purple is prevented from reflecting and the remaining reflected light appears as green. 1 Anti-reflection involves complex elements such as when the anti-reflection film is multi-layered, so it may not be as simple as shown in Figures 7 to 9, but the residual reflected light will always have a color and the hue will change. It is designed to have a different color from the hue H of the transmitted light. Generally speaking, an anti-reflection film is something that prevents the reflection of specific wavelengths (for example, visible light), but it may not be called an "anti-reflection film" when light rays that are not prevented from being reflected are used, as in the present invention. . However, even in such a case, it is necessary to prevent the reflection of unnecessary light rays, so in the present invention, an anti-reflection film is used. This prevents reflection of light rays of the same or similar wavelengths. However, the negative expression of the word "prevention" may lead to misunderstandings, so I will provide an additional explanation. Among the incident visible light rays, there is no need to prevent reflection of light Hh of a desired hue different from the hue H of the colored transparent body. If there were a "selective reflection film" that could highly reflect only the rays of different hues among the incident rays, the result would be the same as preventing reflection of rays of hues other than h. Even if the expression ``anti-reflective coating'' used in ``Anti-reflective coating that selectively reflects'' is changed, the content remains the same.

[Embodiment 2] In the above embodiment, a reflective mirror 5 was deposited on a transparent body 6. However, as long as the effect is maintained, it is not necessary to optically integrate the transparent body 6 and the reflection kt5, and the reflection mirror may be provided as an optically separate body. For example, similar results can be obtained by forming it on a support such as a pedestal (not shown) or a reflecting mirror such as a back cover.

[Example 3] It is easy to provide the transparent body 6 with a color, and there is no reason to avoid it. However, as one embodiment, the transparent body 6 is not colored, is colorless, or does not have a sufficient color. Similar results can be obtained by alternatively providing a colored antireflection coating.

[Embodiment 4] As described above, in the present invention, the surface reflected light beam and the internally transmitted light beam are provided in different colors, so that the colors appear different depending on the viewing direction. Depending on human preference, it is desirable that no unusually colored reflected light rays appear. In such a case, the inventors of the present invention should refer to the specification of the earlier patent application dated February 8, 1988, and
As described in the specification of the patent application dated May 10, it is preferable to set the hue H and the hue to be the same or similar. If for some reason undesirable wavelengths of light are reflected from the surface, 1) Choose an anti-reflection film with low residual reflectance, and 2) Keep the residual reflection as close to zero as possible, such as less than 3%, for example less than 1%. Provided for residual reflections. In this case, when the residual reflectance is small, even if the hue [■ and the hue are not the same or similar, the Munsell color system with one hue I (maintaining (less mixed)) can be applied to almost the outer zone. A bright emitted light beam with a brightness of 7 or less (beautiful, deep color) is obtained.In each of the above embodiments, the exposed side 2 of the transparent body 1 has a polygonal shape as shown in FIG. In addition to cutting, it can be made into any shape suitable for jewelry or ornaments, such as a single surface as shown in Figure 3 (2) or a curved surface as shown in Figure 4 (2). The mirror surface provided on the non-exposed side may be multifaceted as shown in FIG. 1, 3, or may be a single mirror-like flat surface as shown in FIG. 5, or may be a curved surface as shown in FIG. 6, 3. In each of the above embodiments, in order to prevent the anti-reflection film from being charged with static electricity, the film 4 and a support such as a pedestal are used. (not shown) may be electrically connected and grounded. Depending on the case, the mirror 5 may be omitted. In addition to accessories such as pendants, brooches, and rings, it can also be used for items used in other fields, such as toys.
It may also be used as a decorative component to add beauty to stationery, personal items, clothing, etc.

【effect】

Compared to jewelry made from natural materials, it is possible to obtain jewel-like ornaments that emit beautiful colors that surpass them.

[Brief explanation of the drawing]

Fig. 1 is a side view of a jewel-like ornament showing one embodiment of the present invention, Fig. 2 is a sectional view, Figs. 3 to 6 are side views of other embodiments, and Figs. 7 to 9. is a chart showing the relationship between transmitted rays and reflected rays. 2...Surface to be exposed, 3...Surface not exposed. 4... Anti-reflection coating, 5...
·Reflector. 6...Transparent body. 580 wavelength (nm) 6L] IJ

Claims (1)

[Scope of Claims] [1] A colored artificial light-transmitting body formed into a jewel-like shape has a reflective mirror surface formed on the surface that is not exposed to the surface, and an anti-reflection film is formed on the surface that is exposed to the surface. , the color of the transmitted light beam of the transparent body has a hue H, the anti-reflection film reflects the residual reflected light beam having a hue h, and the hue H and the hue h are provided in different colors, and a jewel-shaped colored decoration is provided. body. [2] The jewel-shaped colored decorative body according to claim [1], wherein the reflective mirror surface is provided on an optically separate body from the transparent body. [3] Claim [1] wherein the transparent body does not have the color described in claim [1], but the antireflection film has that color instead.
] and the jewel-shaped colored decorative body according to claim [2]. [4] The jewel-shaped colored ornament according to claims [1] to [3], wherein the hue h is a hue unfavorable to the hue H, and the residual reflectance is set to be low to less than 3%.