Prism structure for object observation and object display stand

The multi-faceted prism structure addresses the limitation of specialized prism technologies by enabling cost-effective, multi-directional observation of articles, enhancing consumer engagement and applicability in diverse fields.

JP2025113063APending Publication Date: 2025-08-01TS TECH CO LTD
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Patent Information

Application Number
JP2024007707
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-22
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

Existing prism technologies, such as the Chrovit-type prism, are not effectively applied in fields like jewelry and watch industries where high precision is not required, limiting their use to specialized applications and preventing cost-effective, wide-range use for consumer and personal observation.

Method used

A multi-faceted observation prism structure composed of one or more prisms, including configurations with right-angle mirror prisms and back prisms, allows simultaneous observation from multiple directions without requiring high precision, enabling easier and more affordable use in various fields.

Benefits of technology

The prism structure facilitates multi-directional observation of articles like jewelry and watches, enhancing consumer interest and trust, and can be used in a broader range of applications including consumer and personal uses.

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Abstract

To provide a prism system being manufactured inexpensively and used further easily in a wide range of fields including consumer use and personal use, not for business or highly specialized applications but for observation purposes that do not require the same high precision as conventional applications, such as displays in jewelry and watch industries.SOLUTION: A prism structure 10 for object observation is composed of one or more prisms, and includes a multi-faceted observation prism 1, the multi-faceted simultaneous observation optical system having an optical path formed to concentrate surfaces in a plurality of directions of an observation object T with a three-dimensional structure in one direction, and a holding part 9 for holding the observation object T. The multi-faceted observation prism 1 is configured to include component prisms 2 and 3, but is not limited thereto.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a prism structure for observing an article and an article display stand, and more particularly to a prism structure for observing an article and an article display stand that can simultaneously observe an article to be observed from multiple directions such as not only the front direction but also the side direction.

Background Art

[0002] Chrovit (registered trademark, hereinafter also referred to as "Chrovit-type prism"), which is a prism invented by the applicant, has been used not only for inspection and processing of integrated circuits, industrial products, and parts (Patent Documents 1, 2, 3), but also for applications in medical and biochemical fields such as cell observation (Patent Document 4). The Chrovit-type prism is an optical element that uses the refractive index of glass to make the lengths of each surface with different focal lengths have the same optical focal length and the same magnification. By combining the bending of the optical path using the prism, the information of a three-dimensional subject observed from multiple directions is aggregated in one direction, and a plurality of surfaces can be simultaneously image-processed by a single image camera.

[0003] In other words, the Chrovit-type prism is composed of one or two or more prisms, has an optical path formed to aggregate the surfaces in each direction that are the observation objects of a three-dimensional structure in one direction, and can be said to be a multi-surface simultaneous observation optical system in which optical path length correction is performed using the difference in refractive index between glass and air to make the working distance of each surface the same. As a result, so to speak, a multi-surface simultaneous observation method can be provided.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

[0005] Now, it is recognized that there are many fields where the multi-faceted simultaneous observation method is useful and effective, not only in the manufacturing fields such as semiconductors, electronics, and electrical machinery, but also in medical and biochemical fields such as cell observation. For example, in the jewelry and watch industries, when displaying products such as jewelry and watches, it is possible to have a display that allows observers to visually recognize from multiple directions simultaneously, not only from above and obliquely above, but also from the side, back, or even from the bottom in addition to these. This enables better observation and inspection of the displayed products, which is beneficial for both exhibitors and observers. In this case, in terms of accuracy, the accuracy up to that of a conventional Krobit-type prism is not required. However, such an application has not been made yet.

[0006] Therefore, the problem to be solved by the present invention is, based on the situation of such prior art, not in business applications and highly specialized applications such as the manufacturing fields including semiconductors, electronics, and electrical machinery, and medical and biochemical fields such as cell observation, but for observation purposes where high accuracy like that of conventional applications is not required, such as for display in the jewelry and watch industries. The present invention aims to provide a new prism method that can be manufactured at a lower cost, can be used in a wider range of fields including consumer and personal uses, and can be used more easily.

Means for Solving the Problem

[0007] The inventor of the present application studied the above problems. As a result, instead of adopting a high-precision specification such that the lengths of respective surfaces with different focal lengths are made to have the same optical focal length and the same magnification as in a conventional Krovitt prism, it was found that the problem can be solved by adopting a configuration in which surfaces in a plurality of directions of an observation target article can be aggregated in one direction using one or two or more prisms, and based on this, the present invention was completed. That is, the invention claimed in the present application, or at least the disclosed invention, as means for solving the above problems is as follows.

[0008] 〔1〕A multi-faceted observation prism structure for observing an article, comprising: a multi-faceted observation optical system having an optical path formed so as to aggregate surfaces in a plurality of directions of an observation target article having a three-dimensional structure, which is composed of one or two or more prisms, and a holding portion for holding the observation target article. 〔2〕The multi-faceted observation prism is formed by juxtaposing four right-angle mirror prisms so as to surround the holding portion, and a part of the multi-faceted observation prism is supported by a transparent plate forming the holding portion, and it is possible to simultaneously observe the observation target article from five directions including the front surface. The multi-faceted observation prism structure for observing an article according to 〔1〕. 〔3〕The multi-faceted observation prism is formed by two right-angle mirror prisms provided on opposite sides sandwiching the holding portion and a back prism for observing the back surface of the observation target article, and the right-angle mirror prisms are supported by a part of the back prism or a transparent plate that also acts as the holding portion, and it is possible to simultaneously observe the observation target article from four directions including the front surface. The multi-faceted observation prism structure for observing an article according to 〔1〕, characterized in that.

[0009] [(4)] The multi-faceted observation prism is formed by a single right-angle mirror prism provided on one side of the holding part and a back prism for observing the back surface of the article to be observed. The right-angle mirror prism is supported by a part of the back prism or a transparent plate that also acts as the holding part, enabling simultaneous observation of the article to be observed from three directions including the front surface. The prism structure for observing an article according to [(1)], characterized in that. [(5)] The multi-faceted observation prism is formed by a single right-angle mirror prism provided on one side of the holding part, a back prism for observing the back surface of the article to be observed, and a plate mirror provided opposite to the right-angle mirror prism. The right-angle mirror prism is supported by a part of the back prism or a transparent plate that also acts as the holding part, enabling simultaneous observation of the article to be observed from four directions including the front surface. The prism structure for observing an article according to [(1)], characterized in that. [(6)] The multi-faceted observation prism is formed by a back prism for observing the back surface of the article to be observed and a plate mirror provided on one side of the holding part and supported by the back prism. The front surface of the back prism also serves as the holding part, enabling simultaneous observation of the article to be observed from three directions including the front surface. The prism structure for observing an article according to [(1)], characterized in that.

[0010] [(7)] The multi-faceted observation prism is formed by juxtaposing two right-angle mirror prisms facing the side of the holding part, and the multi-faceted observation prism is supported by a transparent plate that partially forms the holding part, enabling simultaneous observation of the article to be observed from three directions including the front surface. The prism structure for observing an article according to [(1)], characterized in that. [(8)] The article to be observed is an article to be displayed, that is, an article to be displayed. The prism structure for observing an article according to any one of [(1)], [(2)], [(3)], [(4)], [(5)], [(6)], [(7)]. 〔9〕An article display stand, characterized by comprising a prism structure for observing an article according to any one of 〔1〕, 〔2〕, 〔3〕, 〔4〕, 〔5〕, 〔6〕, 〔7〕. 〔10〕The article display stand according to 〔9〕, which is for displaying jewelry or watches.

Advantages of the Invention

[0011] Since the prism structure for observing an article and the article display stand of the present invention are configured as described above, according to these, not only for highly specialized applications such as multi-faceted (multi-directional) simultaneous observation in the manufacturing fields including semiconductor, electronics, and electric machinery, but also for multi-faceted simultaneous observation for display in fields such as jewelry and watch industries where high precision like that of conventional applications is not required, it can be manufactured at a lower cost, can be used in a wider range of fields including civilian and personal uses, and can be used more conveniently.

[0012] Particularly, by displaying items such as jewelry or watches, or items in museums or events so that they can be observed simultaneously from multiple directions (multi-faceted), it is an invention with high practicality and usefulness in fields effective for enhancing the interest, sense of security, and trust of consumers and viewers, or for arousing the purchasing desire for the product.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 2-2

Figure 2-3

Figure 3

Figure 4

Figure 5

Figure 5-2

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying Out the Invention

[0014] Hereinafter, the present invention will be described in detail with reference to the drawings. Fig. 1 is an explanatory view conceptually showing the basic configuration of the prism structure for observing an article of the present invention. In the figure, (a) shows the configuration itself, and (b) shows the usage state and operation. As shown in the figure, the prism structure 10 for observing an article of the present invention is composed of one or two or more prisms, and is a multi-faceted simultaneous observation optical system having an optical path formed so as to converge the surfaces in a plurality of directions of an observation target article T having a three-dimensional structure onto one direction. The main configuration includes a multi-faceted observation prism 1 and a holding portion 9 for holding the observation target article T. In the figure, the multi-faceted observation prism 1 shows a configuration composed of component prisms 2 and 3 which are components thereof, but is not limited thereto, and can take various configurations as described later.

[0015] According to the prism structure 10 for observing this article with such a configuration as shown in (b) in the figure, when the article T to be observed is held by the holding part 9, due to the action of the optical path provided in the multi-faceted observation prism 1, the surfaces in a plurality of directions of the article T to be observed are aggregated in one direction, that is, in the direction facing straight at the holding part 9. Thereby, the surfaces in a plurality of directions of the article T to be observed are observed simultaneously.

[0016] In the example of this figure, if the observation V1 from the facing direction of the holding part 9 is regarded as the observation from the front, in addition to that, the observation V2 which is the observation from the left side surface obtained by the action of the component prism 2 constituting the multi-faceted observation prism 1, and the observation V3 which is the observation from the right side surface obtained by the action of the component prism 3 as well, simultaneous multi-faceted observation from three directions can be made. That is, when the article T to be observed is held by the holding part 9, immediately, the article T to be observed can be simultaneously observed from three directions: the front, the left and right side surfaces, in total.

[0017] Note that the form of holding by the holding part 9 is, in this figure, the so-called placement where the article T to be observed is placed still on the holding part 9, but it is not limited to this. For example, not only the support from below like placement, but also the form of holding in the space by a predetermined locking structure, Any form in which it can be held in a stationary state by some support action in the space observable by the observer may be sufficient.

[0018] Figure 2 is a plan view showing the configuration of an embodiment (No. 1) of the prism structure for observing an article of the present invention. Also, Figure 2-2 is a cross-sectional view taken along the arrow D-D' in Figure 2, and Figure 2-3 is a front view taken along the arrow F in Figure 2. As shown in these, the prism structure 210 for observing an article of this embodiment (No. 1) is configured such that four right-angled mirror prisms 22, 23, 24, and 25 are juxtaposed so as to surround the holding part 29 to form a multi-faceted observation prism 21, and a part of the multi-faceted observation prism 21 is supported by a transparent plate 28 forming the holding part 29.

[0019] In an embodiment (the first one) of such a configuration, in the prism structure 210 for observing an article, when the article to be observed is held by the holding portion 29, due to the action of the multi-faceted observation prism 21, simultaneous observation of the article to be observed from a total of five directions is possible, including the front surface, that is, the direction directly facing the holding portion 29. That is, when the front surface is taken as the front, in addition to that, simultaneous observation of the article to be observed is performed from a total of five directions: the front, back, left, and right side surfaces.

[0020] FIG. 3 is a perspective photographic view showing a production example of the embodiment (the first one) shown in FIG. 2 and the like. Further, FIG. 4 is a plan-view photographic view showing a usage example of the production example shown in FIG. 3. As shown in the figures, with the prism structure 310 for observing this article, the article 3T to be observed placed and held on the holding portion 39 is simultaneously observed from its front, back, left, and right (left and right side surfaces, front surface, and back surface) by the right-angle mirror prisms 22, 23, 24, and 25 that make up the multi-faceted observation prism 31, in addition to the front surface that is directly observed.

[0021] FIG. 5 is a side view showing the configuration of an embodiment (the second one) of the prism structure for observing an article of the present invention. As shown in the figure, in the prism structure 410 for observing an article of this embodiment (the second one), the multi-faceted observation prism 41 is formed by two right-angle mirror prisms 42 and 43 provided on opposite sides sandwiching the holding portion 49, and the back surface prism 46 for observing the back surface of the article to be observed. The right-angle mirror prisms 42 and 43 are supported by a part 46a of the back surface prism 46. The back surface prism 46 is composed of sub-prisms 46a and 46b.

[0022] In an embodiment (the second one) of such a configuration, in the prism structure 410 for observing an article, when the article to be observed is held by the holding portion 49, due to the action of the multi-faceted observation prism 41, simultaneous observation of the article to be observed from a total of four directions is possible, including the front surface, that is, the direction directly facing the holding portion 49. That is, when the front surface is taken as the front, in addition to that, simultaneous observation of the article to be observed is performed from a total of four directions: the left and right side surfaces and the back surface.

[0023] Figure 5-2 is an explanatory view showing the configuration of an embodiment (No. 3) of the prism structure for observing articles of the present invention from four directions. Taking the central figure as a front view, its left and right side views, and top view are shown. As shown in the figure, in the prism structure 510 for observing articles of this embodiment (No. 3), a multi-faceted observation prism 51 is formed by two right-angle mirror prisms 52 and 53 provided on opposite sides sandwiching a holding portion 59, and a back prism 56 for observing the back surface of the article to be observed. The support of the right-angle mirror prisms 52 and 53 is made by a transparent plate 58 that also acts as the holding portion 59. The back prism 56 is composed of sub-prisms 56a and 56b.

[0024] In the prism structure 510 for observing articles of an embodiment (No. 3) having such a configuration, when the article to be observed is held by the holding portion 59, due to the action of the multi-faceted observation prism 51, simultaneous observation of the article to be observed from all four directions is possible, including the front surface, that is, the direction directly facing the holding portion 59. That is, taking the front surface as the front, in addition to that, simultaneous observation of the article to be observed is performed from a total of four directions: the left and right side surfaces and the back surface. Note that the symbol "PL" in the figure represents the optical path, indicating that the back surface of the article to be observed is observed by the back prism 56.

[0025] Figure 6 is a plan view photographic view showing a usage example of a production example of the embodiment (No. 3) shown in Figure 5-2. As shown in the figure, with the prism structure 610 for observing articles of the present invention, the article to be observed 6T placed and held on the holding portion 69 is simultaneously observed not only on the directly observable front surface (front), but also on its left and right side surfaces and back surface by the right-angle mirror prisms 62 and 63 constituting the multi-faceted observation prism 61.

[0026] FIG. 7 is a side view showing the configuration of an embodiment (No. 4) of the prism structure for observing an article of the present invention. As shown in the figure, in the prism structure 710 for observing an article of this embodiment (No. 4), a single right-angle mirror prism 72 provided on one side of the holding portion 79 and a back prism 76 for observing the back surface of the article 7T to be observed form a multi-faceted observation prism 71. The right-angle mirror prism 72 is supported by a part 76a of the back prism 76. The back prism 76 is composed of sub-prisms 76a and 76b.

[0027] In the prism structure 710 for observing an article of the embodiment (No. 4) having such a configuration, when the article 7T to be observed is held by the holding portion 79, due to the action of the multi-faceted observation prism 71, it is possible to simultaneously observe the article 7T to be observed from all three directions, including the front surface, that is, the direction directly facing the holding portion 79. That is, when the front surface is regarded as the front, in addition to that, the article 7T to be observed is simultaneously observed from one side surface and the back surface, a total of three directions. The observation Ob-D from the front surface, the observation Ob-S from the side surface, and the observation Ob-B from the back surface are performed simultaneously.

[0028] Although not shown in the figure, the support of the right-angle mirror prism can also be configured to be performed using a transparent plate that also acts as a holding portion.

[0029] FIG. 8 is a side view showing the configuration of an embodiment (No. 5) of the prism structure for observing an article of the present invention. As shown in the figure, in the prism structure 810 for observing an article of this embodiment (No. 5), a single right-angle mirror prism 82 provided on one side of the holding portion 89, a back prism 86 for observing the back surface of the article 8T to be observed, and a plate-shaped mirror 87 provided opposite to the right-angle mirror prism 82 form a multi-faceted observation prism 81. The right-angle mirror prism 82 is supported by a part 86a of the back prism 86. The back prism 86 is composed of sub-prisms 86a and 86b. As shown in the figure, the plate-shaped mirror 87 can be configured to be supported by the back prism 86.

[0030] In an embodiment (No. 5) of such a structure, in the prism structure 810 for observing an article, when the article 8T to be observed is held by the holding part 89, due to the action of the multi-faceted observation prism 81, simultaneous observation of the article 8T to be observed from all four directions is possible, including the front surface, that is, the direction directly facing the holding part 89. That is, when the front surface is regarded as the front, in addition to this, simultaneous observation of the article 8T to be observed from the left and right side surfaces and the back surface, a total of four directions, is performed, and the observation Ob-D from the front surface, the observations Ob-S and Ob-T from the side surfaces, and the observation Ob-B from the back surface are made simultaneously.

[0031] Although not shown in the drawings, the support of the right-angled mirror prism can also be configured to be performed using a transparent plate that also acts as a holding part.

[0032] FIG. 9 is a plan view photograph showing a usage example of a production example of the embodiment (No. 5) shown in FIG. 8. As shown in the figure, by the prism structure 910 for observing this article, the article 9T to be observed placed and held on the holding part 99 is simultaneously observed not only on the front surface (front) to be directly observed, but also on its left and right side surfaces and the back surface by the right-angled mirror prism 92 and the plate-shaped mirror 97 that constitute the multi-faceted observation prism 91. This usage example can also be realized by the embodiment (No. 2) described with reference to FIG. 5.

[0033] FIG. 10 is a side view showing the configuration of an embodiment (No. 6) of the prism structure for observing an article of the present invention. As shown in the figure, in the prism structure X10 for observing an article of this embodiment (No. 6), a multi-faceted observation prism X1 is formed by a back prism X6 for observing the back surface of the article XT to be observed and a plate-shaped mirror X7 provided on one side of the holding part X9 and supported by the back prism X6. The front surface of the back prism X6 also serves as the holding part X9.

[0034] In an embodiment (the sixth) of such a configuration, in the prism structure X10 for observing an article, when the article XT to be observed is held by the holding part X9, due to the action of the multi-faceted observation prism X1, it is possible to simultaneously observe the article XT to be observed from all three directions, including the front surface, that is, the direction directly facing the holding part X9. That is, when the front surface is regarded as the front, in addition to that, the article XT to be observed can be simultaneously observed from a total of three directions: one side surface and the back surface. The observation Ob-D from the front surface, the observation Ob-S from the side surface, and the observation Ob-B from the back surface are made simultaneously.

[0035] FIG. 11 is a side view showing the configuration of an embodiment (the seventh) of the prism structure for observing an article of the present invention. As shown in the figure, in the prism structure Y10 for observing an article of this embodiment (the seventh), two right-angle mirror prisms Y2 and Y3 are juxtaposed opposite to the side of the holding part Y9 to form a multi-faceted observation prism Y1, and a part of the multi-faceted observation prism Y1 is supported by a transparent plate Y8 that forms part of the holding part Y9.

[0036] In an embodiment (the seventh) of such a configuration, in the prism structure Y10 for observing an article, when the article YT to be observed is held by the holding part Y9, due to the action of the multi-faceted observation prism Y1, it is possible to simultaneously observe the article YT to be observed from all three directions, including the front surface, that is, the direction directly facing the holding part Y9. That is, when the front surface is regarded as the front, in addition to that, the left and right side surfaces, and the article XT to be observed can be simultaneously observed from a total of three directions.

[0037] FIG. 12 is a perspective photographic view showing a usage example of a manufacturing example of the embodiment (the seventh) shown in FIG. 11. As shown in the figure, by the prism structure Z10 for observing an article of the present invention, the article ZT to be observed held by the holding part Z9 is simultaneously observed on its left and right side surfaces by the right-angle mirror prisms Z2 and Z3 that constitute the multi-faceted observation prism Z1, in addition to the front surface (front) that is directly observed. Note that the form of holding by the holding part Z9 of the prism structure Z10 for observing an article of this manufacturing example uses a predetermined locking means to hold the article ZT to be observed stationary in the space formed by the holding part Z9. The article ZT to be observed is locked by the locking means and held stationary in the space of the holding part Z9.

[0038] In addition, in the embodiments (No. 5) and (No. 6) shown in FIGS. 8 and 10, plate-shaped mirrors 87 and X7, which are equivalents thereof, are used instead of the right-angle mirror prism. However, the substitution with equivalents is not limited to these embodiments. That is, as long as it has the functions and operations of each prism that is an element constituting the multi-faceted observation prism 1 or the like related to the prism structure 10 for observing articles of the present invention, it can be substituted with a plate-shaped mirror or other equivalents, and the prism structure for observing articles constituted by using these equivalents is also within the scope of the present invention claimed.

[0039] The prism structure 10 for observing articles of the present invention described above can be used particularly as a display target article as the observation target article T or the like and for display purposes. That is, according to the prism structure 10 for observing articles of the present invention, for jewelry such as gemstones, rings, pendants, watches, personal ornaments, clothing, figurines, dolls and toys, exhibits in museums, etc., and other displays, their exteriors can be shown simultaneously from a plurality of directions.

[0040] In addition, an article display stand including the prism structure 10 for observing articles having any of the configurations described above is also within the scope of the present invention and can be used for displaying the above-mentioned various products, goods, and articles. In particular, the article display stand of the present invention is useful for displaying jewelry or watches.

Industrial Applicability

[0041] According to the prism structure for observing articles and the article display stand of the present invention, as a method for multi-faceted simultaneous observation that does not require very high precision, it can be manufactured at a lower cost and can be used more easily in a wider field including civilian and personal uses. In particular, it is useful for displaying jewelry or watches, and for displaying articles in museums, events, etc., but is not limited thereto, and is an invention with high industrial applicability in a wide range of industrial and technical fields.

Explanation of Reference Numerals

[0042] 1, 21, 31, 41, 51, 61, 71, 81, 91, X1, Y1, Z1… Multi-sided observation prism 2, 3… Component prism 9, 29, 39, 49, 59, 69, 79, 89, 99, X9, Y9, Z9… Holding part 10, 210, 310, 410, 510, 610, 710, 810, 910, X10, Y10, Z10… Prism structure for observing an object 22, 23, 24, 25, 32, 33, 34, 35, 42, 43, 52, 53, 62, 63, 72, 82, 92, Y2, Y3, Z2, Z3… Right-angle mirror prism 28, 38, 58, Y8… Plate 46, 56, 66, 76, 86, 96, X6… Rear-side prism 46a, 46b, 56a, 56b, 66a, 66b, 76a, 76b, 86a, 86b… Sub-prisms of the rear-side prism 87, 97, X7… Plate-shaped mirror Ob-B… Observation from the rear side Ob-D… Observation from the front side Ob-S, Ob-T… Observation from the side PL… Optical path T, 3T, 5T, 7T, 8T, 9T, XT, ZT… Object to be observed

Claims

1. A multi-faceted observation prism that is composed of one or more prisms and has an optical path formed to converge the surfaces of an observation object having a three-dimensional structure in a plurality of directions into one direction, and a holding part for holding the observation object characterized in that it consists of an article observation prism structure.

2. The multi-faceted observation prism is formed by juxtaposing four right-angle mirror prisms so as to surround the holding part, part of the multi-faceted observation prism is supported by a support part that forms the holding part, and it is possible to simultaneously observe the observation object from five directions including the front surface The article observation prism structure according to claim 1, characterized in that.

3. The multi-faceted observation prism is formed by two right-angle mirror prisms provided on opposite sides sandwiching the holding part and a back prism for observing the back surface of the observation object, the support of the right-angle mirror prism is made by a part of the back prism or a transparent plate that also acts as the holding part, and it is possible to simultaneously observe the observation object from four directions including the front surface The article observation prism structure according to claim 1, characterized in that.

4. The multi-faceted observation prism is formed by one right-angle mirror prism provided on one side of the holding part and a back prism for observing the back surface of the observation object, the support of the right-angle mirror prism is made by a part of the back prism or a transparent plate that also acts as the holding part, and it is possible to simultaneously observe the observation object from three directions including the front surface The article observation prism structure according to claim 1, characterized in that.

5. The multi-faceted observation prism is formed by one right-angle mirror prism provided on one side of the holding part, a back prism for observing the back surface of the observation object, and a plate-shaped mirror provided opposite to the right-angle mirror prism, the support of the right-angle mirror prism is made by a part of the back prism or a transparent plate that also acts as the holding part, and it is possible to simultaneously observe the observation object from four directions including the front surface The article observation prism structure according to claim 1, characterized in that.

6. The multi-faceted observation prism It is formed by a rear prism for observing the back surface of the article to be observed and a plate-shaped mirror provided on one side of the holding portion and supported by the rear prism. The front surface of the rear prism also serves as the holding portion. It is possible to simultaneously observe the article to be observed from three directions including the front surface. The prism structure for observing an article according to claim 1, characterized in that.

7. The multi-faceted observation prism is formed by juxtaposing two right-angle mirror prisms facing the side of the holding portion. The multi-faceted observation prism is supported by a support portion that partially forms the holding portion. It is possible to simultaneously observe the article to be observed from three directions including the front surface. The prism structure for observing an article according to claim 1, characterized in that.

8. The article to be observed is an article to be displayed, that is, an article to be displayed, characterized in that the prism structure for observing an article according to any one of claims 1, 2, 3, 4, 5, 6, 7.

9. An article display stand, characterized in that it comprises the prism structure for observing an article according to any one of claims 1, 2, 3, 4, 5, 6, 7.

10. The article display stand according to claim 9, characterized in that it is for displaying jewelry or watches.

Citation Information

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