Use of a white non-fluorescent base in a box-type bare stone case with a transparent window
A non-fluorescent base in the box-type case allows for in-situ fluorescence observation of gemstones, addressing interference issues and improving inspection efficiency.
Patent Information
- Application Number
- JP2024004218U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-08-06
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing box-type loose stone cases with transparent windows and white fluorescent bases hinder the observation of gemstone fluorescence reactions due to interference from the base's fluorescence under UV light, necessitating stone removal for inspection.
A white non-fluorescent material is used for the base of the box-type case to allow fluorescence observation without removing the stones.
Enables direct observation of gemstone fluorescence within the case, enhancing inspection convenience and accuracy.
Smart Images

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Abstract
Description
[Technical Field]
[0001] This device is a box-type case for displaying and storing loose gemstones with a transparent window, and the base is made of a white, non-fluorescent material. [Background technology]
[0002] Box-type loose stone cases with transparent windows allow the loose stones inside to be visually inspected while they are still in the case, and are widely used for display and storage. Generally, for colored loose stones, the loose stones are placed on a white base to help visually recognize their color.
[0003] In recent years, inspection and display methods that check for fluorescence when gemstones are exposed to ultraviolet light have become common. However, the white base shown in
[0002] has the property of fluorescing strongly under ultraviolet light, making it difficult to observe the fluorescent reaction of the loose stone itself. Therefore, in order to observe the fluorescent reaction, it was necessary to remove the loose stone from the box-shaped loose stone case with a transparent window, place it back on a non-fluorescent base, and then expose it to ultraviolet light to check the fluorescent reaction. Summary of the Invention [Problem to be solved by the invention]
[0004] This device makes it possible to check the fluorescent reaction caused by ultraviolet light without removing the loose stones from a box-shaped loose stone case with a transparent window. [Means for solving the problem]
[0005] A white non-fluorescent material is used for the base of the box-shaped bare stone case with a transparent window. [Effects of the Invention]
[0006] Since the fluorescent reaction to ultraviolet light can be confirmed without removing the loose stones from the loose stone case, it is possible to identify the type of gemstone by checking the fluorescent reaction and to improve the convenience of expressing the fluorescent reaction during display. [Means for solving the problem] [Brief explanation of the drawings]
[0007] [Figure 1] This is a schematic front view showing the entire box-type loose stone case with a transparent window. [Figure 2] This is a schematic side view showing the entire box-type loose stone case with a transparent window.
[0008] Figures 1-3 and 2-3 show the characteristics of this device, which is made of white, non-fluorescent material. Figures 1-1, 1-2, 1-4, 2-1, 2-2, and 2-4 show the shape of a commonly used box-type bare stone case with a transparent window and the contents. [Explanation of symbols]
[0009] Figure 1-1 Loose stone (contents) Figure 1-2 Transparent window Figure 1-3 White non-fluorescent material base Figure 1-4 Box-type loose case outer frame Figure 2-1 Loose stone (contents) Figure 2-2 Transparent window Figure 2-3 White non-fluorescent material base Figure 2-4 Box-type loose case outer frame
Claims
[Claim 1] The base of the loose stone case, which is used to display and store loose stones, is made of a white, non-fluorescent material.