WO1990009577A1 - Instrument d'inspection de l'eclat de pierre precieuses telles que diamants et de photographie de pierres precieuses - Google Patents
Instrument d'inspection de l'eclat de pierre precieuses telles que diamants et de photographie de pierres precieuses Download PDFInfo
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- WO1990009577A1 WO1990009577A1 PCT/JP1990/000188 JP9000188W WO9009577A1 WO 1990009577 A1 WO1990009577 A1 WO 1990009577A1 JP 9000188 W JP9000188 W JP 9000188W WO 9009577 A1 WO9009577 A1 WO 9009577A1
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- cylinder
- black
- diamond
- instrument
- diamonds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/87—Investigating jewels
Definitions
- Akira fine manual diamond such as jewelry shine observation instruments and instrument capturing method technology fraction field of jewelry using ⁇ .
- the present invention relates to an instrument for observing and shining a gem, particularly a diamond, and a method for photographing a jewel using the instrument. Background technology
- the characteristic brightness of the diamond is due to the fact that the light incident on the diamond is internally reflected by the cut surface and the reflected light is collected on the table surface (surface) side.
- the degree of brilliance is greatly influenced by the quality of the cast and proportions.
- the character (The rough diamonds in the cut, which sought only the size of the stone) It has a section, and each cutting surface faces a different direction. For this reason, the incident light cannot be regularly reflected internally, and the amount of light collected on the table surface is small and the brightness is small. In addition, in the case of a particularly bad cut, the incident light may pass through to the back side (papillion) as it is.
- Japanese Utility Model Laid-Open No. 60-100941 As an easy instrument for observing the brightness of diamonds, Japanese Utility Model Laid-Open No. 60-100941 has been proposed. In this instrument, a diamond is placed between the magnifier and the light source, and the light from the light source is applied to a red disk with a hole in the center attached to the objective lens side of the magnifier, and the light is reflected on the diamond A diamond with a lot of red light is considered to be bright.
- the above equipment requires a light source and can only be used in places where there is a power source, and is inconvenient to carry.
- the diamond pattern observed with this instrument is It is very monotonous, composed only of the different types of red (the shining part is red and the non-shining part is white), and there is no pattern shading based on the intensity of light necessary for judging the brightness. Also, there was no three-dimensional effect. For this reason, the diamond shine could not be judged clearly enough. '
- the part that appears white should have more shining parts and less shining parts, that is, the degree of shining, but in the above photo, there is almost no change in shading based on such differences in shining. No difference in brightness in the white area.
- the present invention has been made in view of such a conventional problem.
- the first object of the present invention is to enable even an amateur to easily judge whether or not the glow of a gem such as a diamond is good and without requiring a power supply.
- Another object of the present invention is to provide a device which has a simple structure and is easy to carry.
- a second object is to provide a method of taking a photograph or the like using the device. Disclosure of the invention
- the observation instrument of the present invention has the following structure.
- a lower cylinder part which is made of a material that does not transmit light and whose inner bottom part is a mounting part for jewelry to be observed,
- An upper cylinder portion wherein the main body is made of a translucent material, and is provided above the lower cylinder portion;
- a lens for magnifying observation provided at the upper end of the upper cylindrical portion
- An instrument for observing the brightness of jewels such as diamonds in which the surface of the inner bottom of the lower cylinder is black or a black color with little light reflection.
- the lower cylinder is An instrument for observing glow of jewelry such as a diamond, comprising a base serving as a stone mounting portion, and a cylinder main body attached to the upper portion of the base so as to be able to be worn.
- the entire upper cylinder or at least the upper part thereof is formed in a truncated cone shape, and the lower end is formed at the upper part of the lower cylinder part.
- the main body is made of a translucent material, the inner tube portion is vertically slidably inserted into the upper tube portion from the upper bran, and a lens for magnifying observation provided at the upper end of the inner tube portion.
- Diamond like jewelry shine observation instrument a surface of the inner bottom and the color of the small blackish with morphism Sf s black or light of the outer cylindrical portion.
- the outer cylinder portion is configured such that a line connecting the inner bottom portion and the upper edge has an angle of 10 ° to 25 with respect to the axis of the outer cylinder portion.
- the outer cylinder portion is a diamond comprising a base having an upper surface on which a jewel is placed, and a cylinder body detachably mounted on an upper portion of the base. A glowing observation instrument for jewelry.
- the main body is made of a translucent material, and is composed of an upper cylinder portion provided above the lower cylinder portion.
- An instrument for observing the brightness of jewels such as diamonds in which the surface of the inner bottom of the lower cylinder is black or a black color with little light reflection.
- the lower cylindrical portion is a diamond comprising a base having an upper surface on which a stone is placed, and a cylindrical main body detachably mounted on an upper portion of the base.
- a glowing observation instrument for jewelry is a diamond comprising a base having an upper surface on which a stone is placed, and a cylindrical main body detachably mounted on an upper portion of the base.
- a camera receiver having a through hole in the center is connected to the upper end of the upper cylindrical portion, and the upper surface of the camera receiver is An instrument for observing the glow of jewelry such as diamonds, in which at least the periphery of the through-hole is made of black or a black color with little light reflection.
- the upper cylindrical part is configured to have a larger diameter than the lower cylindrical part, and the lower end is connected to the upper part of the lower cylindrical part.
- the upper cylindrical part is connected to a large-diameter short cylindrical part or flange, and the upper end of the upper cylindrical part is connected to a camera base that is transparent at the center. It is composed of black or a black color with little light reflection, and at least the periphery of the through-hole on the upper surface of the camera pedestal is made of black or a color of a color-collecting color with little reflection of light.
- the main body is made of a translucent material, and the inner tube portion is vertically slidably fitted into the outer tube portion from the upper end thereof.
- An instrument for observing the brightness of jewels such as diamonds in which the surface of the inner bottom of the outer cylinder is black or a black color having little light reflection.
- the line connecting the center of the inner bottom and the upper end ⁇ of the outer cylinder is 10 ° to 25 with respect to the axis of the outer cylinder.
- An instrument for observing the brightness of jewelry such as diamonds, which is configured to have an angle.
- the outer cylinder portion is a diamond having a base having an upper surface on which a jewel is placed, and a cylinder main body detachably mounted on an upper portion of the base.
- An instrument for observing the brightness of jewelry such as c.
- the photographing method of the present invention has the following configuration.
- the inner peripheral surface of the lower cylinder or the outer cylinder is black It is preferable to use a black color with little color or light reflection, or a chromatic color such as red. In particular, in order to clearly determine the brightness of the diamond as described later, it is preferable to use the latter chromatic color.
- the unique glow of diamond is due to surface reflection and internal reflection. Surface reflection also occurs on glass, etc., but in the case of diamonds, a large percentage of light incident from the surface is reflected at the bottom or other cut surface by being super-folded and reflected. Brightness occurs. As described above, the amount of this internal reflection is determined by the quality of the cut and the proportion, and the cut and the proportion are the most important for obtaining a large aperture.
- the diamond When observing the diamond visually with the instrument of the present invention, the diamond is placed on a mounting portion of a lower cylinder (hereinafter, an instrument having a lower cylinder and an upper cylinder is described as an example). Observe from the upper end of the upper cylinder.
- a lower cylinder hereinafter, an instrument having a lower cylinder and an upper cylinder is described as an example.
- FIGS. 1 (A) and 1 (B) show the present invention in which the inner peripheral surface of the lower cylinder is colored red. This is a photograph of a diamond that can be seen by the naked eye when the diamond is observed with its table surface (surface) facing upward using an instrument.
- the diamond shown in (A) is a nearly ideal brilliant cut, which has a large amount of internal reflection of light and is normally visible. This is a diamond with extremely high brightness.
- the diamond pattern shown in this photo (A) is composed of white and several types of red (grey in the attached photo) with different colors and lightness. Of these, the white portion is the portion where the light directly incident on the diamond is reflected and returned as it is, and the light red (pink) portion is the light that is directly incident on the diamond and is reflected on the inner peripheral surface of the lower cylinder.
- the dark red part has a small amount of internal reflection of the incident light of the lower cylinder reflected in the diamond, and is mixed with the ground color (black) of the mounting part. This is the part you can see. That is, among the observed patterns, the white portion has the largest amount of internal reflection light, and the darker the red color, the smaller the amount of internal reflection. If the amount of reflection is small, the black color of the ground at the installation part is seen. Well, it looks dark red. However, in the diamond in this photo (A), almost all the cut surfaces have internal reflections, so the outline of the diamond itself is extremely clear. The ratio of the area and the bright red area is non- ⁇ high.
- the diamond of the Brilliant Cut which has such an ideal proportion, has a very clear white arrow j extending radially in eight directions from its center. Is recognized.
- the photograph in Fig. 1 (B) shows a diamond with a rough cut and a poor position; the example shown in Fig. 1 (A) shows the diamond.
- the proportion of the white part is small, and the proportion of dark red is large.
- the fact that the ratio of “dark red” is large in this way means that the amount of internal reflection is small and the effect of the ground color (black) of the installation part is present, and that the concept is accordingly small. is there.
- the peripheral portion looks like a black and white pattern following the unevenness, the black chipped portion reflects light internally. 3 ⁇ 4: Since the light is transmitted to the mounting portion side as it is, the ground of the mounting portion This is what you can see, and therefore this part is not shining at all.
- the diamond in this photo has no regular pattern as a whole, and no "arrow" as seen in the photo (A) appears at all.
- the photographs of Figs. 2 (A) and (B) are the diamonds shown in (A) and (B) of Fig. 1. This is a photograph when the mode is turned upside down and observed from the back side.
- the ideal cut photo (A) has a large percentage of white and light red in the diamond
- the poorly cut photo (B) has a white and light red in the diamond.
- the proportion of dark red is increasing.
- the diamond in the photo (A) has eight
- the degree of brilliancy of the diamond can be determined at a glance based on the pattern when observed.
- the principle that the diamond exhibits a clear pattern as described above and can be observed is not always clear, but the diamond is hit by the lower cylinder and the upper cylinder which is a translucent material. It is considered that the light is adjusted appropriately.
- the present inventor conducted the following experiments using a good cut and a bad cut diamond having the same number of cuts in order to confirm the operation and effect of the present invention.
- a translucent white cylinder 4 made of synthetic resin is attached to the top of the cylinder 3 ', and the diamond 2 placed on the bottom of the cylinder 3 is attached.
- the pattern corresponding to 3 ⁇ 4 in Fig. 1 was clearly visible, and the “arrow” was also clearly observed with a good cut diamond.
- the magnifying lens was attached to the upper end of the translucent cylinder 4, the pattern could be observed more clearly.
- the pattern observed in this case is the inner surface of the cylinder 3 ⁇ black, it consists of white, several types of gray with different lightness, and .:
- a good cut diamond The outline of the main body is clear, and the white part and the light gray part as a whole ⁇ are extremely high, whereas a diamond with a bad cut has The periphery of the diamond body was unevenly blackened, and the proportion of white parts was small and the proportion of dark gray parts was large.
- the translucent cylinder 4 provided at the top of the cylinder 3 moderately adjusts the amount of light entering the interior of the cylinder 3, and this contributes to the appearance of the upper E pattern. became. It is considered that such a translucent cylinder 4 basically acts to assist in taking in light into the cylinder 3 by irregular reflection inside. Further, it is considered that when the direct light from the outside is strong, the cylindrical body 4 functions to appropriately limit the direct light and to make the light entering the cylindrical body 3 uniform.
- a device with various dimensional ratios (inner diameter / height) of the cylindrical body 3 was subjected to a diamond observation test.
- the angle ⁇ between the line connecting the center of the inner bottom of the cylindrical body 3, which is the mounting part of the diamond, and the top edge of the cylindrical body 3, and the cylindrical axis is in the range of 10 ° to 25 °. It was found that the above-mentioned pattern became invisible when it was removed. That is, the angle ⁇ is 10. If it is less than this, the diamond looks dark on the whole, and even with a good cut diamond as shown in the photo ( ⁇ ) in Fig. 1, the pattern could not be clearly recognized.
- the line connecting the center of the inner bottom portion and the upper edge of the lower tubular portion or the outer tubular portion (hereinafter described as an example of the lower tubular portion) irrespective of the structure and size of the device. It is preferable that the angle ⁇ formed between the lower cylinder axis and the axis of the lower cylinder is 10 ° to 25 °, preferably 15 ° to 20 °.
- the size of the device of the present invention is not limited as long as such conditions are satisfied. For example, the size of the entire device can be reduced to the size of a thumb.
- the color of the diamond pattern observed differs depending on the color of the inner peripheral surface of the lower cylindrical portion.
- the inner peripheral surface of the lower cylinder is black as in the case of the experimental example described above, light incident into the lower cylinder is hardly reflected by the inner peripheral surface of the lower cylinder.
- the diamond shines when it hits the diamond directly from the upper part of the lower cylinder, and is visually observed.
- the pattern is an achromatic color of white-gray (several types of grays with different lightness) and black.
- the inner peripheral surface of the lower cylinder is colored chromatically, such as red, a part of the light entering the lower cylinder is reflected by the inner peripheral surface of the lower cylinder, and then hits the diamond.
- the pattern to be printed is a chromatic color including the color tone of the inner peripheral surface of the lower cylinder.
- the diamond pattern observed is white.
- a color-red color severe colors with different color tones and brightness such as blue, red, dark red, etc. It becomes a black color.
- the mounting part on which the diamond is placed has a black or black color, so the inner peripheral surface of the lower cylinder part must be chromatic in order to more clearly identify the pattern. I prefer to do that.
- the inner peripheral surface of the lower cylinder portion reflects light in this way, as shown in FIG. 5, the reflection of light on the inner peripheral surface of the lower cylinder portion causes the reflection of the diamond. Since light enters the diamond from a direction of approximately 180 ° on the upper side, it is possible to observe a finer pattern based on the internal reflection state of the diamond than when the inner peripheral surface is black as described above. it can.
- the color of the inner surface of the lower cylinder portion is a fluorescent color among chromatic colors, a particularly clear pattern can be obtained.
- the mounting part on which the diamond is placed is used to clearly identify the part of the diamond that has no internal reflection. In order to prevent the light reflected from the diamond from entering from the lower part or the bottom of the diamond, it is necessary to use black or a black color with less light reflection. .
- the device of the present invention by making the whole or at least the upper part of the upper cylindrical portion into a truncated cone shape, the light is more appropriately incorporated and the diamond is more sharp. It turned out that identification was possible.
- the white or milky upper cylinder does not enter the field when observing, and in this sense, the diamond pattern can be effectively observed. can do.
- the entire upper cylindrical portion made of a translucent material may have a truncated cone shape, or only the upper portion may have a truncated cone shape and the lower portion may have a cylindrical shape.
- the lower end of the upper tubular portion having such a structure is connected to a short tubular portion or a flange portion connected to the upper portion of the lower tubular portion.
- the instrument of the present invention has a structure in which a lens for enlarged observation is attached to the upper end of the upper cylindrical portion made of a translucent material, so that the pattern of the enlarged diamond can be observed. Therefore, there is an advantage that it is very easy to see and the pattern can be easily determined.
- a method of determining the glow of a diamond for example, two or more diamonds with the same number of rats are observed at the same time, and In such a case, it is preferable to make the structure without a lens at the upper end of the upper cylindrical portion. That is, such an instrument has a wide field of view since it has no lens, and is suitable for simultaneously observing a plurality of diamonds.
- the diamond itself appears to be smaller than a device with a lens, and although the pattern distinction is slightly inferior to that extent, the pattern and brightness of the diamonds as described above are reduced.
- the patterns can be identified enough to compare them.
- the photographing method of the present invention is performed using such a device without a lens. That is, this photographing is performed by bringing a lens of a camera or the like close to the upper end of the upper cylinder or the inner cylinder, and directing the lens toward the diamond placed on the mounting portion of the lower cylinder or the outer cylinder. This makes it possible to photograph a pattern similar to that captured by the naked eye when using the above-described instrument with a lens.
- the photographs in Fig. 1 and Fig. 2 are photographs taken in this way.
- a photographing means a video camera or the like can be used in addition to a general camera.
- the upper cylinder is not formed in the shape of a truncated cone as described above, but is constituted by a cylinder having a larger diameter than the lower cylinder, and a camera cradle is attached to the upper end of the upper cylinder.
- the same operation can be performed with a container having the same structure.
- the lower surface of the camera cradle can be composed of white or high-brightness color, so that light can be properly taken into the lower tube, and 1 tube is similar to a truncated cone-shaped device. , Only the diamond pattern can be taken. *
- an instrument whose inner peripheral surface of the lower cylindrical portion or ⁇ f) has a chromatic color such as red, and to take an image using a power photograph.
- the lower cylinder and valve cylinder If the inner surface is black or black color, the pattern will be white-gray-black, but the place where the diamond is placed will be black or black, so take a picture. In this case, the distinctiveness of the pattern is slightly inferior.
- the dark chromatic color for example, dark red
- Fig. 6 and (B) are photographs of diamonds used in conventional appraisal reports (Photo (A) shows diamonds with good cuts, and Photo (B) shows diamonds with bad cuts) Is).
- a diamond was placed between a reflective plate with a hole and a black plate, the diamond was illuminated diagonally from below, and the camera was photographed from above through the hole. In this way, only the brightest and least brilliant parts of the eye are black and the rest are whitish. Therefore, although the shape of the arrow appears in this photograph, the color of the arrow J, which should be the brightest part, is black.
- FIG. 2 ( ⁇ ) ⁇ r-heart shape as shown in the photograph shows that “
- the pattern including the “heart-shaped” as shown in Fig. 2 (A) is the first one that can be photographed by the present invention.
- the imaging method of the present invention is a device dedicated to imaging a structure in which the camera itself is incorporated into the above-described device of the present invention (that is, a structure in which the upper cylinder portion and the lens portion of the camera are integrated). It is possible to do it.
- the outer tube is attached to the lower tube of the device described above, and
- the inner cylinder portion also corresponds to the upper cylinder portion, respectively, and the basic operation and effect are the same as those of the above-described device having the lower cylinder portion and the upper cylinder portion.
- this device is extremely convenient to carry because the inner cylinder can be slid into the outer cylinder and can be housed inside, and moreover, the inner cylinder can be moved relative to the outer cylinder. By sliding, it is possible to observe the state close to radiance normally seen with the naked eye and the state exhibiting a pattern as shown in the above photograph step by step.
- the appearance of the pattern can be observed in a stepwise manner by gradually lifting the inner cylinder from the state housed in the outer cylinder. Can be.
- the pattern can be sufficiently observed even in a relatively dark place.
- the device of the present invention it is possible to observe the pattern of a diamond that has been successfully seen in the past, and that can respond well to the brilliance. Even amateurs can easily identify and judge the degree of brilliance according to the quality of the item.
- FIGS. 1 ( ⁇ ), ( ⁇ ⁇ ⁇ ) and 2) and ( ⁇ ) are photographs of a diamond taken using the tool of the present invention.
- FIGS. 3 (1) to (3) are explanatory diagrams showing a method of an experiment performed to confirm the effect of the present invention.
- FIG. 4 is an explanatory view showing the basic configuration of the device of the present invention.
- FIG. 5 is an explanatory diagram showing how light is applied to the diamond when the lower cylinder of the device of the present invention is colored.
- Figures 6) and (B) are pictures of diamonds taken by the conventional photography method.
- FIG. 7 to 9 show an embodiment of the device of the present invention.
- FIG. 7 is a side view
- FIG. 8 is a plan view
- FIG. 9 is a longitudinal sectional view. It is a longitudinal cross-sectional view which shows the other example of the device of the invention.
- FIG. 11 is a longitudinal sectional view showing another embodiment of the device of the present invention.
- FIGS. 12 to 15 show another embodiment of the device of the present invention.
- FIG. 12 is a side view
- FIG. 13 is a vertical view
- FIG. 2 is a cross-sectional view along the line AA
- FIG. 15 is a longitudinal cross-sectional view showing the state where the inner cylindrical portion is extended.
- FIG. 16 is a longitudinal sectional view showing another embodiment of the device of the present invention.
- FIG. 17 is a longitudinal sectional view showing another embodiment of the device of the present invention.
- FIG. 18 is a longitudinal sectional view showing another embodiment of the device of the present invention.
- FIG. 19 is a longitudinal sectional view showing another embodiment of the device of the present invention.
- FIG. 20 is a longitudinal view showing another embodiment of the device of the present invention. ; '
- FIGS. 21 and 22 show another example of the structure of the lower cylinder portion shown in FIG. 9 and the like, and FIG. 21 is a perspective view showing the lower cylinder portion in an exploded state.
- FIG. 22 is a perspective view showing a state where the base is turned upside down by 180 ° from the state shown in FIG. 21. , 3 ⁇ 4:
- FIGS. 3 and 2 4 figure below that shown in the first 0 FIG like; shows another example of the configuration of the tubular portion, a perspective view a second 3 Figure indicated by state-like decomposed lower tubular section s
- FIG. 24 is a perspective view showing a state where the connecting portion is turned upside down by 180 ° from the state shown in FIG. 23. '
- FIG. 25 is a perspective view showing one embodiment of the photographing method of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- FIGs 7 to 9 show one embodiment of the device of the present invention! : As shown, 5 is the lower cylinder, 6 is the upper cylinder, and 7 is a lens for magnification observation.
- the lower cylinder part 5 is made of a non-transparent material, and includes a base part 51 and a cylinder main body 50 detachably attached to the base part.
- the base 51 has an annular step 8 at its upper part, and the lower end of the cylindrical body 50 is detachably fitted to the step 8.
- the upper surface of the base 51 which is the inner bottom of the main body 50, forms a diamond mounting portion 11.
- a concave portion 9 for placing a diamond is formed in the center of the mounting portion 11.
- the surface of the mounting portion 11 is configured to have a black color or a black color with little light reflection in order to prevent diffuse reflection of light and to enable clear observation of only the diamond.
- the inner peripheral surface of the lower cylinder portion 5 (the cylinder main body) be a color that is black or a black color with little light reflection, or a chromatic color such as red.
- the lower cylinder 5 has an angle ⁇ between the line connecting the center of the mounting portion 11 (inner bottom) and the upper end ⁇ and the axis of the lower cylinder 10 to 25 ° (preferably 15 ° to 15 °). It is preferable to set the dimensional ratio of the inner diameter and height so as to be about 20 °).
- the upper cylindrical portion 6 is made of a white or milky translucent material made of synthetic resin (for example, polyethylene resin) glass or the like, and is attached to the upper end of the lower cylindrical portion 5 by a screw at the lower end thereof. ing.
- the inner diameter and the height of the upper cylinder 6 may be substantially the same as those of the lower cylinder 5.
- the lens 7 is held by a holding ring 10, and the holding ring 10 is attached to the upper end of the upper cylindrical portion 6 by a screw. Therefore, by detaching the holding ring 10 from the upper cylindrical portion 6, the holding ring 10 can be used as an instrument without a lens.
- the mounting structure of the lens 7 is not limited to the present embodiment.
- a structure may be employed in which the holding ring is horizontally slid.
- FIG. 10 shows another embodiment of the present invention. Is formed in a truncated cone shape.
- the upper cylindrical portion 6a which is a translucent material, into a truncated cone shape in this way, light is more appropriately taken into the lower cylindrical portion 5a, and the diamond is more sharp. Since the upper cylinder 6a does not enter the field of view when observing, only the diamond pattern can be observed effectively.
- a large-diameter short tube portion 12 is connected to the upper portion of the lower tube portion 5a, and the lower end of the truncated cone-shaped upper tube portion 6a is attached to the upper end of the short tube portion 12 by a screw. Have been.
- the lower cylindrical portion 5a is composed of a cylindrical main body 50a and a disk-shaped base 51a, and the lower end of the cylindrical main body 50a is protruded from the center of the disk-shaped base 51a. It is detachably fitted inside the ring 14.
- the inner bottom surface of the short tube portion 12 is configured to have a black color or a black color with little light reflection.
- a black cloth 13 with little light reflection is attached to the inner bottom surface of the substrate.
- FIG. 11 is similar to the embodiment of FIG. 10 in that the upper cylindrical portion 6a is formed in a truncated cone shape.
- the upper cylindrical portion 6a is connected to the lower cylindrical portion 5a. It is attached to the flange 15 connected to the upper part. A black cloth 13 is also stuck on the upper surface of this flange 15 Have been.
- FIGS. 12 to 15 show an embodiment of the device of the present invention in which the device is made expandable and contractable, wherein 16 is an outer cylindrical portion, and 17 is an inner cylindrical portion.
- the outer cylinder part 16 is made of a non-transparent material, and includes a base part 161 and a cylinder main body 160 detachably attached to the base part.
- the base 161 has an annular step 8 at its upper part, and the lower end of the cylindrical body 160 is detachably fitted to the step 8.
- the upper surface of the base 161, which is the inner bottom of the cylinder body 160, forms the diamond mounting portion 11.
- a concave portion 9 for placing a diamond is formed in the center of the mounting portion 11.
- the surface of the mounting portion 11 is configured to have a black color or a black color with little light reflection in order to prevent diffuse reflection of light and to allow only diamonds to be clearly observed. .
- the inner peripheral surface of the outer cylindrical portion 16 (simple body) be black or a black color with little light reflection or a chromatic color such as red.
- the outer cylinder 16 has an angle ⁇ between the line connecting the center of the mounting portion 11 (inner bottom) and the upper end and the axis of the outer cylinder of 10 to 25 ° (desirably). Or 15 ° to 20 °).
- the inner cylindrical portion 17 is made of a white or milky translucent material made of synthetic resin (for example, polyethylene resin) or glass.
- the upper cylinder 16 is inserted into the upper part of the outer cylinder 16 so as to be able to slide up and down, and the friction with the inner surface of the outer cylinder 16 causes the outer cylinder 16 to be attached to the outer cylinder 16.
- the lens 7 is ⁇ the holding-ring 1 0 the holding
- the ring 10 is attached to the upper end of the inner cylindrical portion 17 by a screw. Therefore, by removing the holding ring 10 from the 1% cylindrical portion 17, it is possible to use it with a lensless lens.
- the mounting structure of the lens 7 for example, a structure in which the holding ring slides in the horizontal direction can be used.
- This device is extremely convenient to carry because the inner cylinder 17 can be slid up to the outer cylinder 16 with respect to the outer cylinder 16 and can be housed inside.
- the part 17 with the outer cylinder! Fl 8 By sliding the part 17 with the outer cylinder! Fl 8, the state close to the shine of the place normally seen with the naked eye and the state showing the pattern as shown in the above photograph are before and after And observe it.
- the diamond 2 is placed on the mounting portion 11 of the inner cylindrical portion 17, and most of the inner cylindrical portion 17 is inside the outer portion 16.
- the action of the inner cylinder 17 does not work. 2 usually looks close to the naked eye.
- the inner cylindrical portion 17 is pulled upward from this state, a pattern unique to the device of the present invention appears due to the action of the translucent inner cylindrical portion 17.
- the inner cylinder 17 is slid to a position where the focal point of the lens 7 at the upper end of the inner cylinder 17 matches the diamond 2, and observation is performed.
- FIG. 1S is an embodiment of a device having a structure having no lens at the upper end of the upper cylindrical portion, and other structures are the same as those of the embodiment of FIGS. 7 to 9.
- the instrument of the present embodiment is suitable for observing a plurality of such diamonds at the same time because the field of view is widened without lenses.
- the diamond itself appears to be smaller than the lens-equipped device as shown in FIGS. 7 to 9, and the pattern is somewhat indistinguishable.
- the diamond patterns can be distinguished enough to compare the patterns of the diamonds.
- FIG. 17 and FIG. 18 are also embodiments of a structure having no lens at the upper end of the upper cylindrical portion.
- Other basic structures are shown in FIG. 10 and FIG. 11. This is similar to the embodiment of FIG.
- a camera support 19 is provided at the upper end of the upper cylindrical portion 6a.
- the camera cradle 19 has a through hole 20 at the center thereof, and an upper end of the upper cylindrical portion 6a is formed through an annular screw portion 22 provided at a lower portion of the through hole 20.
- the upper surface 21 (at least the periphery of the through-hole with which the camera lens comes into contact) of the camera receiver 19 is black or a black color with little light reflection.
- the lower surface 191 of the camera cradle be white or have a high brightness (for example, a white color).
- a high brightness for example, a white color
- Fig. 19 shows another embodiment of the device of the present invention having a camera cradle, in which the upper cylindrical part 6b is composed of a larger sieve than the lower cylindrical part 5b.
- a force receiver 19 is attached to the upper end of the large-diameter upper cylindrical portion 6b.
- the lower part 19 1 of the camera cradle 19 is made white or a high-brightness color (for example, white color) : and light is appropriately taken into the lower cylinder part 5 b.
- a high-brightness color for example, white color
- FIG. 20 shows an embodiment of a device having a structure in which no lens is provided at the upper end of the inner cylindrical portion 17, and other structures are the same as those of the embodiment shown in FIGS. 12 to 15. is there .
- an arbitrary number of concave portions 9 of the mounting portion 11 can be provided, and a groove or the like for inserting a ring can be provided instead of the concave portion.
- FIGS. 21 and 22 show the lower cylinder shown in FIGS. 7-9, 16 and 20 (or the outer cylinder shown in FIGS. 12 through 15).
- This section shows another example of the structure, and is configured so that one device can be applied to observing a bare stone and a ring in the rain.
- the base part 51 constituting the lower cylinder part 5 has a fitting part for detachably fitting the mounting parts 11 A, 1 IB and the lower end of the cylinder body 50 on the upper surface and the lower surface, respectively.
- the grooves 23 A and 23 B are provided.
- a ring attachment portion 24 having a groove 25 for inserting a ring portion of a finger jam is provided on one of the mounting portions 11 A of the base portion 51, as shown in FIG. 21. .
- a lid 26 having a concave portion 9 for placing a diamond formed thereon can be attached to the ring attachment portion 24.
- the mounting portion 11 B on the other side of the base portion 51 has a flat plate surface 27 as shown in FIG. The flat plate surface 27 is used when a diamond is placed with its table surface facing down, and the diamond is observed from the back side.
- FIGS. 12 and 15 show the outer cylinder shown in FIGS. 12 and 15.
- Figures 23 and 24 show the lower cylinder part shown in Figure 10, Figure 11, Figure 17, Figure 18, Figure 19 in the same manner as above for bare stones and rings. This shows an example of a structure that can be applied to both types of observation.
- the base la constituting the lower cylindrical portion 5a further includes a pedestal portion 29 and a short cylindrical connecting portion 28 detachably attached to the pedestal portion.
- the pedestal portion 29 has a fitting hole 30 at the center of the upper surface thereof, and the connecting portion 28 can be arbitrarily fitted into the fitting hole 30 on both sides thereof.
- the connecting portion 28 has the same structure as the base portion 51 shown in FIGS. 21 and 22 described above.
- any side of the connecting portion 28 is inserted into the fitting hole 30 of the pedestal portion 29, and furthermore, The mating groove 23
- the lower end of the cylinder main body 50a is fitted into 23B.
- the lower cylinder 5, 5, 5a, 5b, the upper cylinder 6, 6, 6a, 6b, the outer cylinder 16, and the inner cylinder 1 are all cylindrical. It is configured, but its shape is particularly limited
- they may be formed in a polygonal cross section (octagon, decagon ' : shape, etc.) instead of 1- ⁇ '.
- FIG. 25 shows an embodiment of the imaging method of the present invention using the instrument shown in FIG. 4 :
- the photographing by the method of the present invention uses an instrument without a lens for magnifying observation.
- a lens such as a camera (a close-up lens in the case of a camera) is brought close to the upper end of the upper cylinder or the inner cylinder, and the lens is placed on the lower cylinder or the outer cylinder. The camera is shot at the camera.
- the lens part 32 of the single-lens reflex camera 31 is aligned with the through hole 20 and the camera pedestal 19 Put it on top and take a picture of the diamond.
- the upper cylindrical part 6a protrudes outward in the shape of a truncated cone, so that it cannot enter the field of view of the camera 31 and the upper surface of the force receiver 19 and the inner bottom surface of the short cylindrical part 12 Since both are black or a black color with little light reflection, only diamond patterns can be photographed clearly and beautifully.
- the device of the present invention can be used as a means for allowing customers to check the diamond cut and proportions when selling diamonds at a jewelry store.
- the photographing method of the present invention can be used for creating a photograph or the like to be put on a diamond appraisal report.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Adornments (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90903225A EP0412168B1 (en) | 1989-02-17 | 1990-02-16 | Instrument for inspecting brilliance of jewels such as diamond and photographing of jewels therewith |
DE69031097T DE69031097T2 (de) | 1989-02-17 | 1990-02-16 | Gerät zur untersuchung des glanzes von juwelen, z.b. diamanten, und zum fotografieren von juwelen |
KR90702286A KR970004388B1 (en) | 1989-02-17 | 1990-10-17 | Instrument for observing jewels'brilliance as diamond, and method of taking photographs with the said instrument |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3794989 | 1989-02-17 | ||
JP1/37949 | 1989-02-17 | ||
JP2/32399 | 1990-02-15 | ||
JP2032399A JPH06103268B2 (ja) | 1989-02-17 | 1990-02-15 | ダイヤモンド等の宝石の輝き観察器具および該器具を用いた宝石の撮影方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1990009577A1 true WO1990009577A1 (fr) | 1990-08-23 |
Family
ID=26370967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1990/000188 WO1990009577A1 (fr) | 1989-02-17 | 1990-02-16 | Instrument d'inspection de l'eclat de pierre precieuses telles que diamants et de photographie de pierres precieuses |
Country Status (8)
Country | Link |
---|---|
US (1) | US5260763A (ja) |
EP (1) | EP0412168B1 (ja) |
JP (1) | JPH06103268B2 (ja) |
KR (1) | KR970004388B1 (ja) |
AU (1) | AU633879B2 (ja) |
CA (1) | CA2027560C (ja) |
DE (1) | DE69031097T2 (ja) |
WO (1) | WO1990009577A1 (ja) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1176516B (it) * | 1984-07-31 | 1987-08-18 | Agip Spa | Procedimento per la immobilizzazione di elementi di prodotti di fissione e/o elementi transuranici contenuti in scorie liquide radioattive ed apparecchiatura atta allo scopo |
EP0442065B1 (en) * | 1990-02-15 | 1997-07-23 | Kinsaku Yamashita | Instrument for observing jewels brilliance as diamond, and method of taking photographs with said instrument |
DE9005845U1 (ja) * | 1990-05-23 | 1990-07-26 | Fa. Carl Zeiss, 7920 Heidenheim, De | |
JPH06103269B2 (ja) * | 1990-07-06 | 1994-12-14 | 金作 山下 | ダイヤモンド等の宝石の観察または撮影方法および器具 |
US5446595A (en) * | 1994-10-28 | 1995-08-29 | Mcfall; Joseph L. | Loose stone detector |
US6326995B1 (en) * | 1994-11-03 | 2001-12-04 | Synthonics Incorporated | Methods and apparatus for zooming during capture and reproduction of 3-dimensional images |
US5510891A (en) * | 1995-01-23 | 1996-04-23 | Frangie; Nehme | Object characteristic direct measuring device utilizing a magnetically attracted lover base and an upper frame having a scaled lens therein |
US5835205A (en) * | 1996-02-12 | 1998-11-10 | C3, Inc. | Optical testing system for distinguishing a silicon carbide gemstone from a diamond |
DE69714035T2 (de) | 1997-08-14 | 2003-03-06 | Sulzer Innotec Ag | Zusammensetzung und Vorrichtung zur Reparatur von Knorpelgewebe in vivo bestehend aus Nanokapseln mit osteoinduktiven und/oder chondroinduktiven Faktoren |
US6980283B1 (en) | 1997-12-18 | 2005-12-27 | Imagestatistics, Inc. | Method and associated apparatus for the standardized grading of gemstones |
US6020954A (en) * | 1997-12-18 | 2000-02-01 | Imagestatistics, Inc. | Method and associated apparatus for the standardized grading of gemstones |
USD427617S (en) * | 1998-07-01 | 2000-07-04 | Gersan Establishment | Apparatus for viewing gemstones |
US6665058B1 (en) | 2000-05-24 | 2003-12-16 | Eightstar Diamond Company, Inc. | Device for judging symmetry, brightness, and efficiency of light return in precious stones |
JP4663855B2 (ja) * | 2000-08-02 | 2011-04-06 | 株式会社ほほえみブレインズ | 装飾用宝石の鑑定方法 |
US6710943B2 (en) * | 2001-05-18 | 2004-03-23 | David Alan Weir | Viewer for laser-inscribed diamonds |
US7622562B2 (en) | 2002-06-26 | 2009-11-24 | Zimmer Orthobiologics, Inc. | Rapid isolation of osteoinductive protein mixtures from mammalian bone tissue |
US6786733B2 (en) * | 2002-10-15 | 2004-09-07 | Overseas Diamonds Inc. | Computer-implemented method of and system for teaching an untrained observer to evaluate a gemstone |
US7000760B2 (en) * | 2003-04-03 | 2006-02-21 | Lau Anson W | Jewelry box with a viewer |
US7420657B2 (en) * | 2003-12-22 | 2008-09-02 | American Gem Society | Methods, apparatus, and systems for evaluating gemstones |
US7315356B2 (en) * | 2004-05-13 | 2008-01-01 | Haske Martin D | Fire demonstration tool and method for using thereof |
US7355683B2 (en) | 2006-03-24 | 2008-04-08 | American Gem Society | Systems and methods for evaluating and displaying the dispersion of a diamond or other gemstone |
US7751034B2 (en) | 2006-11-28 | 2010-07-06 | American Gem Society | Systems and methods for ray tracing |
US8498847B2 (en) * | 2009-05-29 | 2013-07-30 | Pnina Gelman | Cut grading gemstones, evaluation and representation of symmetry and proportion |
CN108474937B (zh) * | 2016-01-05 | 2020-11-03 | 白石秀 | 宝石观察器具和观察方法 |
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JPS56158937A (en) * | 1980-05-13 | 1981-12-08 | Kazumi Okuda | Inspecting device for diamond |
JPS57148123U (ja) * | 1981-03-12 | 1982-09-17 | ||
JPS60109041U (ja) * | 1983-12-27 | 1985-07-24 | 有限会社 ジエイ デイ− エム | ダイヤモンド等の宝石の輝きの判定器具 |
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US1744485A (en) * | 1925-02-21 | 1930-01-21 | Gustave L Herz | Method and means for the examination of jewels |
US3410634A (en) * | 1965-10-04 | 1968-11-12 | Robert J. Buckner | Illuminated viewer with interchangeable mounted specimen units |
JPS5015597Y1 (ja) * | 1969-08-24 | 1975-05-15 | ||
AT344419B (de) * | 1973-03-20 | 1978-07-25 | Dihaco Diamanten Handels Co | Vorrichtung zur feststellung der bewertungsdaten von farbedelsteinen, insbesondere brillanten |
US3885242A (en) * | 1973-11-12 | 1975-05-20 | Jack Duran | Method of and apparatus for producing photographic vignettes |
DE7418353U (de) * | 1974-05-27 | 1974-10-17 | Eickhorst M | Vorrichtung zur spektroskopischen untersuchung von edelsteinen |
JPS5466855A (en) * | 1977-05-12 | 1979-05-29 | Yukio Munetomo | Method of identifying cut grade of diamond |
ZA813263B (en) * | 1980-06-04 | 1982-06-30 | De Beers Cons Mines Ltd | The assessment of colour in diamonds and other gems |
JPS57148123A (en) * | 1981-03-09 | 1982-09-13 | Hiroki Takahashi | Automatic gas shut-off device with reset safety mechanism |
AU554120B2 (en) * | 1981-04-06 | 1986-08-07 | Gersan Establishment | Centering and working gemstones |
JPS60109041A (ja) * | 1983-11-18 | 1985-06-14 | Nippon Technical Co Ltd | テ−ププレ−ヤ− |
DE3600115A1 (de) * | 1986-01-04 | 1987-07-09 | Konrad Dr Hoffmann | Verfahren zur verstaerkten wiedergabe des gelbstiches von diamanten |
DE3802535A1 (de) * | 1987-05-21 | 1989-02-23 | Sattler Hans Eberhard | Vorrichtung zur betrachtung insbesondere von rohedelsteinen in einer immersionsfluessigkeit |
US5045688A (en) * | 1989-12-04 | 1991-09-03 | Coors Brewing Company | Method and apparatus for inspection of bottle thread having a unitary image plane |
EP0442065B1 (en) * | 1990-02-15 | 1997-07-23 | Kinsaku Yamashita | Instrument for observing jewels brilliance as diamond, and method of taking photographs with said instrument |
-
1990
- 1990-02-15 JP JP2032399A patent/JPH06103268B2/ja not_active Expired - Fee Related
- 1990-02-16 EP EP90903225A patent/EP0412168B1/en not_active Expired - Lifetime
- 1990-02-16 WO PCT/JP1990/000188 patent/WO1990009577A1/ja active IP Right Grant
- 1990-02-16 CA CA002027560A patent/CA2027560C/en not_active Expired - Fee Related
- 1990-02-16 AU AU50826/90A patent/AU633879B2/en not_active Ceased
- 1990-02-16 DE DE69031097T patent/DE69031097T2/de not_active Expired - Fee Related
- 1990-02-16 US US07/582,859 patent/US5260763A/en not_active Expired - Fee Related
- 1990-10-17 KR KR90702286A patent/KR970004388B1/ko not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS56158937A (en) * | 1980-05-13 | 1981-12-08 | Kazumi Okuda | Inspecting device for diamond |
JPS57148123U (ja) * | 1981-03-12 | 1982-09-17 | ||
JPS60109041U (ja) * | 1983-12-27 | 1985-07-24 | 有限会社 ジエイ デイ− エム | ダイヤモンド等の宝石の輝きの判定器具 |
Non-Patent Citations (1)
Title |
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See also references of EP0412168A4 * |
Also Published As
Publication number | Publication date |
---|---|
DE69031097D1 (de) | 1997-08-28 |
AU633879B2 (en) | 1993-02-11 |
US5260763A (en) | 1993-11-09 |
EP0412168A4 (en) | 1992-05-13 |
CA2027560A1 (en) | 1990-08-18 |
JPH06103268B2 (ja) | 1994-12-14 |
EP0412168B1 (en) | 1997-07-23 |
EP0412168A1 (en) | 1991-02-13 |
KR910700451A (ko) | 1991-03-15 |
DE69031097T2 (de) | 1998-01-02 |
AU5082690A (en) | 1990-09-05 |
KR970004388B1 (en) | 1997-03-27 |
JPH02290542A (ja) | 1990-11-30 |
CA2027560C (en) | 1995-10-03 |
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