JP2009056186A - Cut jewel or jewel, accessory and its attaching method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an accessory exerting a large brilliance of various colors of the cut jewel or the like by separating and reflecting an incident light according to hue by an optical thin film formed at pavilion, and highly improving dispersed lights (dispersion) of a cut jewel or the like by applying a large amount of lights from the upper direction or the like of the accessory to the pavilion of the cut jewel. <P>SOLUTION: This accessory includes the optical thin film formed by alternately laminating high refractive index layers and low refractive index layers on the pavilion of the cut jewel to increase the amount of reflected light from the pavilion, the cut jewel attached to an accessory body by a frame body or claw parts and a reflection body formed in the accessory body while retaining a space in a face facing the pavilion of the cut jewel. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a cut jewel or jewel in which an optical thin film is formed on a pavilion or the bottom and the amount of reflected light is increased, a jewelry to which the jewel is attached, and a method for attaching the jewelry.

Normally, a cut jewel 10 such as a diamond has a substantially frustoconical crown 14 having a flat table 12, a substantially conical pavilion 18 having an acute curette 16, as shown in FIG. It has a girdle 19 around the boundary between the crown 14 and the pavilion 18. In such a cut jewel 10, the incident light X from above passes through the table 12 that is the upper surface and the crown 14 that is the upper side surface into the cut jewel 10, and the pavilion 18 that is the lower side surface and the lower side. The light is reflected inside the curette 16 which is the side tip, and is again emitted to the outside of the upper side to cause the shine of the gemstone.

However, a considerable amount of incident light Y from below is transmitted into the cut jewel 10 and a small amount of reflected light is created on the surface of the pavilion 18, but the cut jewel 10 is cut by the conventional accessory structure. When is attached, the reflected light is emitted downward, and the reflected light is not visually recognized. Therefore, a part of the shine of the cut jewel 10 is wasted. On the other hand, if such reflected light can be increased and used, there is no doubt that the shine of the entire cut jewel 10 will be exhibited more greatly. .

By the way, the rising frame of the wire rod is fixed to the base material, and a decorative body made of a precious stone such as diamond is provided at a predetermined position of the rising frame, and the decorative body is placed at a position having a certain space with respect to the base material. There is also disclosed an accessory such as a piercing that is arranged to irradiate the decorative body with incident light and reflected light from various directions.

JP-A-9-191911

However, as described above, the surface of the pavilion 18 of the cut jewel 10 is not formed to reflect light in the first place. Most of the light was transmitted through the inside of the cut jewel 10 and a slight amount of reflected light was created so that the image of the pavilion 18 could be observed, but it did not contribute to the brightness of the cut jewel 10 itself.

Such a situation is exactly the same for a jewel having a flat bottom such as a spear, and the conventional accessory structure to which they are attached cannot contribute to the shine of the jewel itself.

An object of the present invention is to provide an attachment structure and attachment method to an accessory that can make the attached cut gemstones shine very beautifully by making maximum use of the reflected light at the bottom of the gemstone pavilion or gemstone. And

In order to achieve the above object, the present invention comprises the following arrangement. That is, the present invention described in claim 1 forms an optical thin film on the pavilion of a cut jewel, and the present invention described in claim 2 forms an optical thin film on the bottom of the jewel, and the amount of light reflected from the bottom It is characterized by being an increased gem. In the present invention, the optical thin film is preferably formed by alternately laminating a high refractive index layer and a low refractive index layer.

According to a fourth aspect of the present invention, an optical thin film formed by alternately laminating a high refractive index layer and a low refractive index layer is formed on a pavilion of a cut jewel or a bottom of a jewel, and from the pavilion or the bottom, The method is characterized by increasing the amount of reflected light.

Further, according to the present invention, the cut jewel according to claim 1 or the jewel according to claim 2 is attached to the jewelry main body by a frame or a claw, and the pavilion of the cut jewel or the bottom of the jewel. It is the jewelry provided with the reflector, maintaining space on the opposite surface. In the present invention, the reflector forms a concave mirror, and when the cut jewel is attached to the accessory body by a frame or a claw, the angle of curvature of the concave mirror is at least larger than the tip angle of the cut jewel pavilion. It is preferable.

In addition, in the present invention according to claim 7, an optical thin film formed by alternately stacking a high refractive index layer and a low refractive index layer is formed on the bottom part of a cut jewel pavilion or jewel, and the pavilion or the bottom part is formed. It is the attachment method to the jewelry which makes the said cut gemstone or the said gemstone shine strongly by providing the reflector which makes a concave mirror, maintaining space on the surface facing this.

According to the cut jewel according to the present invention, incident light that has been transmitted through the interior of the jewel from a pavilion or the like can be separated and reflected by the optical thin film, and strong shine by various colors can be exhibited. Moreover, according to the attachment structure of the cut jewelry etc. in the jewelry according to the present invention, a large amount of light from the upper direction and the side direction of the jewelry can be applied to the pavilion etc., and the rainbow color emitted after repeated reflection The reflected light can further enhance the brightness of cut gemstones.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of cut jewels and their attachment structures according to the present invention are described in detail below with reference to the drawings. In FIG. 1, (b) is a side view showing a first cut jewel, in FIG. 2, (a) is a front view of a first accessory with the first cut jewel attached, (b) is a side view thereof, FIG. 3 is an explanatory diagram showing reflected light in the first accessory.

The 1st cut jewelry 20 consists of colored transparent stones, such as colorless transparent stones, such as a diamond, a synthetic diamond, and an imitation diamond, or a ruby, a sapphire, and an emerald, for example.

Here, the first cut jewel 20 includes a substantially frustoconical crown 24 having a flat table 22, a substantially conical pavilion 28 having an acute angle curette 26, and a boundary circumference between the crown 24 and the pavilion 28. The cut shape itself is no different from the cut shape of a normal jewel, and this cut is generally called a round brilliant cut.

The first cut jewel 20 has an optical thin film 30 in which high refractive index layers and low refractive index layers are alternately stacked on the surface of the pavilion 28. Examples of the material of the high refractive index material layer in the optical thin film 30 include TiO 2 and ZrO 2. Examples of the material for the low refractive index material layer include SiO2 and MgF2.

The optical thin film 30 is formed by, for example, laminating ten or more high refractive index layers and low refractive index layers, and setting the thickness to about 125 to 150 nanometers, so that light that can be transmitted by ordinary cut jewels is pavilion. It becomes possible to reflect on 28 surfaces. Even in this case, the overall appearance of the first cut jewel 20 does not change greatly, and of course, the beauty as a jewel is not impaired.

As a method for forming such an optical thin film, a dry film forming method such as a vacuum evaporation method or a sputtering method is generally preferable from the viewpoint of film thickness controllability and quality stability, but the method is not necessarily limited to the dry film forming method. Of course, a wet film forming method such as a spray method, a dip method, or a flow coating method may be used as long as the required performance is satisfied.

Conventionally, the first cut jewel 20 hits the surface of the pavilion 28, and can reflect the incident light Y from below, which has passed through a considerable amount inside the jewel, on the surface of the pavilion 28. This can be confirmed by observing the first cut jewel 20 placed in the face-down direction (the direction with the table down) and exhibiting a greater brightness than before the optical thin film 30 is formed.

In addition, such an optical thin film 30 can improve the brightness of the first cut jewel 20 without being peeled off semipermanently, and for example, imitation that is somewhat inferior in hardness to diamond, such as cubic zirconia. When formed in diamond, the protective function of the optical thin film 30 can prevent the surface of the pavilion 28 from being worn, and as a result, the final polished state in which the first cut jewel 20 is brightest can be maintained for a long time.

Next, a method for attaching the first cut jewel 20 to the accessory will be described. The main body 33 of the first accessory 32 has a so-called pendant shape, and is manufactured by lost wax casting or press cutting using a metal material such as platinum, gold, silver, or brass. A loop-shaped frame 34 that is wound around the girdle 29 and supports the first cut jewel 20, and a small-diameter ring 36 is fixed above the frame 34. The first cut jewel 20 is suspended from the main body 33 so as to be swingable.

Here, the main body 33 forms a reflector 38 while ensuring a space with an appropriate distance on the surface facing the pavilion 28. The outer shape of the reflector 38 is substantially circular so as to wrap the entire outer periphery of the first cut jewel 20 when viewed from the front, and has a concave shape when viewed from the side.

Further, the reflector 38 is a concave mirror by polishing the surface of the main body 33, and the first accessory 32 can further reflect the light reflected by the pavilion 28. If necessary, a separate member having a certain thickness obtained by cutting a part of a spherical surface made of stainless steel or the like is attached to the main body 33 of the first accessory 32 by welding or the like to form the reflector 38. You can also.

Although there is no particular limitation on the bending angle of the reflector 38, it is at least larger than the tip angle of the pavilion 28 of the first cut jewel 20, for example, when an ideal cut diamond is used for the first cut jewel 20. It is preferable that the angle of curvature is 5 degrees or more. When the bending angle is steep, the range of incident light that can be collected by the reflector 38 is narrowed, and not only the total amount of light is reduced, but the incident light tends to converge with the concave mirror. This is because it is preferable that a large amount of dispersed light strikes the surface of the pavilion 28 in order to exhibit the shine of the gemstone.

When such a first accessory 32 is hung on the necklace chain 39 or the like and worn, incident light A and B from the upper direction or the side direction is collected and reflected by the reflector 38, and the pavilion of the first cut jewel 20 28 hits a lot. Further, the light is separated and re-reflected by the optical thin film 30 at the surface of the pavilion 28, and is repeatedly emitted several times to be emitted to the outside, so that a large amount of reflected light A ′ and B ′ is created. Is done. In general, it is said that each time light is separated and reflected, it creates iridescent light. In this sense as well, the first cut jewel 20 strongly increases the dispersion (rainbow light), which is an important shine of the jewel. Unleash and shine much more beautiful than traditional cut jewels.

In FIG. 4, (a) is a plan view of a second accessory to which the first cut jewel is attached, and (b) is a side sectional view thereof.

In the present embodiment, the first cut jewel 20 is the same as described above, and the description thereof is omitted here.

The main body 43 of the second accessory 42 has a so-called ring shape, and is manufactured by the same material and method as the first accessory 32. Above the large-diameter ring 44 (not shown), four columnar claw portions 46 that project against the girdle 29 and press the crown 24 to support the first cut jewel 20 are projected. However, of course, there is no limitation on the shape and number of such claw portions 46. The second accessory 42 is worn by passing fingers through the ring 44, and the first cut jewel 20 is fixed above the ring 44.

In the second accessory 42 as well, a reflector 48 is attached to the surface of the first cut jewel 20 facing the pavilion 28 while ensuring a space with an appropriate distance. The reflector 48 forms a concave mirror whose surface is polished as described above. In addition, the planar shape of the reflector 48 in a present Example is what is called a petal shape, and is beautiful as a design of jewelry.

When such a second accessory 42 is worn on a finger, a large amount of light from the upper part and the side part comes into contact with the pavilion 28 of the first cut jewel 20 by the action of the reflector 48 as described above. Furthermore, the light is reflected on the surface of the pavilion 28 by the action of the optical thin film 30, and a large amount of reflected light is created, so that the brightness of the first cut jewel 20 can be remarkably enhanced.

In FIG. 5, (a) is a top view of the 3rd jewelry which attached the 2nd cut jewel, (b) is the sectional view in the side part direction.

Similar to the first cut jewel 20, the second cut jewel 50 is a colorless transparent stone such as diamond or a colored transparent stone such as ruby, but has a substantially triangular frustum-shaped crown 54 having a flat table 52 and an acute angle. A substantially triangular pyramidal pavilion 58 having a curette 56 and a belt-like girdle on the boundary surface between the crown 54 and the pavilion 58 (not shown here), and the cut shape itself is a so-called triangle cut. There is no difference from the general cut shape of jewels called.

Also in the second cut jewel 50, the optical thin film 60 in which the high refractive index layers and the low refractive index layers are alternately laminated is formed on the surface of the pavilion 58. The material of the optical thin film 60 and the formation method thereof are exactly the same as those of the first cut jewel 20.

The main body 63 of the third accessory 62 has a so-called pierce shape, and is manufactured by the same material and method as the first accessory 32. A triangular loop-shaped frame body 64 that is wound around a jewel girdle and supports the second cut jewel 50, and a rod body 66 made of a thin wire is fixed to the rear of the frame body 64, and is attached to the rod body 66. Sometimes a catch is inserted to hold onto the earlobe (not shown here).

And also in the 3rd jewelry 62, the reflector 68 is formed in the surface facing the pavilion 58 of the 2nd cut jewelry 50, ensuring the space by a suitable distance. The reflector 68 forms a concave mirror whose surface is polished as described above. In addition, the planar shape of the reflector 68 in a present Example is a triangular shape which surrounds the whole outer periphery of the 2nd cut jewelry 50, and is a beautiful thing as one point of jewelry.

When such a third accessory 62 is worn, a large amount of light from the top and side is applied to the pavilion 58 of the second cut jewel 50 by the action of the reflector 68 as described above. Furthermore, these lights are reflected and separated on the surface of the pavilion 58 by the action of the optical thin film, and a large amount of reflected light and dispersed light are created, so that the brightness of the second cut jewel 50 can be remarkably enhanced.

In FIG. 6, (a) is a top view of the 4th jewelry which attached the 1st jewel, (b) is the sectional view in the side part direction.

The first jewel 70 uses, for example, a colored translucent stone such as a mustone or a colored opaque stone such as an agate, has a dome shape curved upward, and has a flat bottom surface and a cut shape. The shape of the first jewel 70 is not limited to this cabochon cut, although it is not different from a general cut shape called a cabochon cut.

Also in the first jewel 70, an optical thin film 74 in which a high refractive index layer and a low refractive index layer are alternately laminated is formed on the bottom 72. The material of the optical thin film 74 and the formation method thereof are the same as those of the first cut jewel 20.

The main body 78 of the fourth jewelry 76 has a so-called brooch shape with a design with leaves, and is manufactured by the same material and method as the first jewelry 32. A loop-shaped frame body 80 that is wound around the peripheral portion 73 of the first jewel 70 and supports the first jewel 70, and a column 82 that protrudes upward from the main body 78 is fixed to the frame body 80. The first jewel 70 is attached to the main body 78.

Also in the fourth jewelry 76, the reflector 84 is provided on the surface facing the bottom 72 of the first jewel 70 while ensuring a space with an appropriate distance. The reflector 84 forms a concave mirror whose surface is polished as described above.

When such a fourth accessory 76 is worn, a large amount of light from the upper and side portions strikes the bottom portion 72 of the first jewel 70 by the action of the reflector 84 as described above. Furthermore, since the light is reflected on the surface of the bottom 72 by the action of the optical thin film 74 and reflected by the reflector 84, a large amount of reflected light is created, and the brightness of the first jewel 70 can be remarkably enhanced.

In FIG. 7, (a) is a plan view showing a part of the fifth accessory to which the second jewel is attached, and (b) is a sectional view thereof.

The second jewel 90 uses, for example, colored opaque stones such as pearls, and the entire shape is a sphere.

Also in the second jewel 90, an optical thin film 94 in which high refractive index layers and low refractive index layers are alternately stacked is formed on the bottom 92. The material of the optical thin film 94 and the method for forming the same are the same as those of the first cut jewel 20.

The main body 98 of the fifth accessory 96 has a so-called bracelet shape, and is manufactured by the same material and method as the first accessory 32. The second jewel 90 has an attachment hole (not shown) in the bottom portion 92 (not shown), and a support column 100 protruding upward from the main body 98 is inserted into the attachment hole and bonded, whereby the second jewel 90 is attached to the main body 98. Attached to.

Also in the fifth accessory 96, the reflector 102 is formed on the surface facing the bottom 92 of the second jewel 90 while ensuring a space with an appropriate distance. The reflector 102 forms a concave mirror whose surface is polished as described above.

When such a fifth accessory 96 is worn, a large amount of light from the top and sides hits the bottom 92 of the second jewel 90 by the action of the reflector 102 as described above. Further, the light is reflected on the surface of the bottom 92 by the action of the optical thin film 94, and a large amount of reflected light is created, so that the brightness of the second jewel 90 can be remarkably enhanced.

As described above, the present invention has been described with reference to several embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. It goes without saying that a wide variety of changes can be made. The present invention can be applied to any type of accessory as long as a reflector can be attached, and there is no particular limitation on the shape of a cut jewel or a jewel. Therefore, the present invention can also be applied to other jewelry such as earrings, tie tacks, oval mix cuts, heart shape cuts, and other cut jewels and jewels of pair shape cuts.

(A) is a side view which shows the conventional cut jewel, (b) is a side view which shows the 1st cut jewel. (A) is a front view of the 1st clothing accessory which attached the 1st cut jewelry, (b) is the side view. It is explanatory drawing which shows the reflected light in a 1st jewelry. (A) is a top view of the 2nd jewelry which attached the 1st cut jewelry, (b) is the sectional view in the side part direction. (A) is a top view of the 2nd accessory which attached the 2nd cut jewel, (b) is the sectional view in the side part direction. (A) is a top view of the 4th jewelry which attached the 1st jewel, (b) is the side part direction sectional drawing. (A) is a top view which shows a part of 5th jewelry which attached the 2nd jewel, (b) is the sectional drawing.

Explanation of symbols

10 cut jewel 12 table 14 crown 16 curette 18 pavilion 19 girdle

20 First cut jewel 22 Table 24 Crown 26 Curette 28 Pavilion 29 Girdle

30 Optical thin film 32 First accessory 33 Main body 34 Frame body 36 Ring body 38 Reflector

42 second accessory 43 main body 44 ring 46 claw portion 48 reflector

50 Second cut jewel 52 Table 54 Crown 56 Culet 58 Pavilion 59 Girdle

60 Optical thin film 62 Third accessory 63 Main body 64 Frame body 66 Rod body 68 Reflector

70 first jewel 72 bottom 73 peripheral 74 optical thin film 76 fourth accessory 78 main body

80 Frame 82 Post 84 Reflector

90 second jewel 92 bottom 94 optical thin film 96 fifth accessory 98 main body

100 support 102 reflector

Claims (7)

A cut jewel, wherein an optical thin film is formed on the pavilion of the cut jewel to increase the amount of light reflected from the pavilion. A jewel characterized in that an optical thin film is formed on the bottom of the jewel to increase the amount of light reflected from the bottom. The cut jewel according to claim 1 or the jewel according to claim 2, wherein the optical thin film is formed by alternately laminating a high refractive index layer and a low refractive index layer. A method of forming an optical thin film in which a high refractive index layer and a low refractive index layer are alternately stacked on the pavilion of a cut jewel or the bottom of a jewel, and increasing the amount of light reflected from the pavilion or the bottom. The cut jewel according to claim 1 or the jewel according to claim 2 is attached to the accessory body by a frame or a nail part, and a reflector is provided while maintaining a space on the surface facing the pavilion of the cut jewel or the bottom of the jewel. Jewelery characterized by having. In the case where the reflector forms a concave mirror and the cut jewel is attached to the accessory body by a frame or a claw, the curved angle of the concave mirror is at least larger than the tip angle of the pavilion of the cut jewel. The accessory according to claim 5, characterized in that: Reflection that forms a concave mirror while forming a space on the surface facing the pavilion or the bottom, by forming an optical thin film in which a high refractive index layer and a low refractive index layer are alternately laminated on the pavilion of the cut jewel or the bottom of the jewel The attachment method to the jewelry which makes the said cut jewel or the said jewelry shine strongly by providing a body.