Ornament
By incorporating a quarter-wave plate and a plastic retaining material in the structure for quartz crystal identification, the challenges of aligning and distinguishing between left and right quartz crystals are addressed, enabling a more efficient and practical mass production process.
Patent Information
- Application Number
- JP2024004430U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-06-30
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing methods for identifying and distinguishing between left and right quartz crystals using a bull's-eye feature are cumbersome, time-consuming, and impractical for mass production due to the difficulty in aligning the bull's-eye with the center and the distortion caused by strong screw tightening.
A structure is designed with a quarter-wave plate placed between the crystal ball and the upper and lower polarizing plates, allowing for rotation and simplifying the process of changing the bull's-eye into either a left or right crystal, while using a plastic retaining material to hold the crystal ball securely.
This solution simplifies the process of identifying and distinguishing between left and right quartz crystals, making it feasible for mass production while maintaining the accuracy of the identification process.
Smart Images
Figure 0003251797000001_ABST
Abstract
Description
Technical Field
[0001] International Patent Classification, 7th Edition A44C 25 / 00 FI A44C 25 / 00
Background Art
[0002] The Gemological Institute of America (GIA)'s "Gemstone Characteristics Chart A" describes the identification feature "bull's eye" for quartz. Left quartz and right quartz are not described. When the power of a polarizer for gemstone identification is turned on, the polarizing plate is adjusted to the darkest state, and the quartz ball is rotated, then the identification feature of the uniaxial optical axis "bull's eye" appears on the surface of the quartz ball. If the quartz is not a round ball, the "bull's eye" will not appear. It is known in the jewelry industry that when a quarter-wave plate is inserted between the polarizing plate and the quartz ball and rotated at the position where the "bull's eye" appears with the polarizer, it will change to either left quartz (left helix) or right quartz (right helix). Natural quartz ball "bull's eye" is divided into left quartz and right quartz with a 50% probability. Synthetic quartz obtained by recrystallizing natural quartz is regarded as only right quartz. The fused quartz obtained by melting and solidifying natural quartz has a different crystal structure and becomes just ordinary quartz crystal, and the "bull's eye" will not appear. When the position of the eye is moved 30 cm left and right in the state where the quartz ball "bull's eye" appears, the "bull's eye" moves in the opposite direction to the eye, so it is difficult and time-consuming to align it with the center with a screw and mass production is impossible. If the screw is tightened strongly, the "bull's eye" will be distorted and return to its original state when loosened. The following Japanese Patent Laid-Open had many problems and production was aborted. Prior Art
[0003] Design Registration 1109661 〔Applicant〕Toshihisa Mikami
[0004] Design Registration 1059586 〔Applicant〕Toshihisa Mikami
[0005] Japanese Patent Laid-Open 2004-008644 (P2004-8644A) 〔Applicant〕Toshihisa Mihashi
Summary of the Invention
Problems to be Solved by the Invention
[0006] In the previous concept, there was no idea of providing a space for a quarter-wave plate. A space for a quarter-wave plate was not provided between the crystal ball and the upper and lower two polarizing plates, and it was not possible to change the bull's-eye into a left crystal (left helix) and a right crystal (right helix).
Means for Solving the Problem
[0007] In order to change the crystal ball to match the bull's-eye and change it into a left crystal and a right crystal, a structure is adopted in which a quarter-wave plate is placed and a space for rotation is provided between the crystal ball and the upper and lower two polarizing plates.
Effect of the Invention
[0008] By making the crystal retaining material plastic, the crystal ball can be retained by the elasticity of the plastic. With the crystal ball retained, when it is rotated in all directions and the bull's-eye appears floating on the surface of the crystal ball, and a quarter-wave plate is placed and rotated in the space between the crystal ball and the polarizing plate, the structure can be simplified to change it into a left crystal (left helix) and a right crystal (right helix), making it possible to sell at a reasonable price.
Mode for Carrying Out the Invention
[0009] Regarding the device described in claim 1 in order to solve the problem In Embodiment 1, FIGS. 5 to 21 of Type A and FIGS. 22 to 36 of Type B have a structure in which the crystal ball is retained by the holes in the plastic plate and the elasticity of the plastic plate, and a space for rotating the quarter-wave plate is provided. Fold the plastic plate, attach a polarizing plate to the inside of the upper plate, attach a translucent plastic to the inside of the lower plate, attach a polarizing plate at the position of the dark field intersecting at 90 degrees thereon, shine a stronger light from the rear, and retain the crystal ball with the holes in the plastic plate. Then, it can be rotated in all directions, a cross-shaped black shadow appears, and when aligned with the center, the bull's-eye floats on the surface of the crystal ball. In the structure where a quarter-wave plate is placed and rotated in the space between the crystal ball and the polarizing plate at the position where the bull's-eye floats, the bull's-eye can be changed into either a left crystal or a right crystal.
[0010] Regarding the invention described in claim 2 A-shaped Embodiment 2 (Figs. 5 to 13) The crystal ball retaining structure is formed by bending a colorless and transparent plastic plate into a substantially figure-six shape, providing three upper, middle, and lower stages. When holes are made in the middle plate and the crystal ball is pressed and retained by the elasticity of the upper plate and the middle plate, when the crystal ball is rotated in all directions with a finger, bull's eyes can be made to appear on the surface of the crystal.
[0011] Regarding the invention described in claim 3 A-shaped Embodiment 3 (Figs. 20·21) Fig. 20 shows that by extending the plate from the upper plate to the middle plate in the left side view and welding / adhering it to the middle plate to fix the outer frame, the dropping of the crystal ball can be prevented. Fig. 21 shows that by extending the plastic plate from the upper plate to the plane of the middle plate and the bottom plate in the left side view of Fig. 7, widening the welding / adhering surface, and fixing the outer frame as a substantially square shape, the dropping of the crystal ball can be prevented. Furthermore, by extending the tip of the middle plate in Fig. 21 to the side surface and welding / adhering it, the dropping of the crystal ball can be prevented. Attaching a reinforcing material to the adhering surface increases the strength.
[0012] Regarding the invention described in claim 4 A-shaped Embodiment 4 (Figs. 14 to 19) The outer frame of the plastic plate is bent into a substantially figure-six shape, providing three upper, middle, and lower stages. When a quarter-wave plate a (Fig. 14) is inserted into the space provided between the middle plate and the lower plate at the position where the bull's eye appears, Fig. 16 is obtained. When a quarter-wave plate b (Fig. 18) is attached on the lower polarizing plate in Fig. 7, Fig. 17 is obtained. Figs. 16 and 17 show that by rotating the quarter-wave plate, it can be changed to a left crystal or a right crystal. The quarter-wave plate a in Fig. 14 uses a cross-sectional view.
[0013] Regarding the invention described in claim 5 A-shaped Embodiment 5 Fig. 19 shows that when the rotating polarizing plate is rotated at the position where the bull's eye appears on the surface of the crystal ball, the color and shape of the bull's eye can be changed. The color of the bull's eye varies depending on the size of the crystal ball, and the smaller the size of the crystal ball, the clearer the color change of the color circle.
[0014] Regarding the invention described in claim 6 Embodiment A6 The rear view of Fig. 6 shows attaching a strap or string to the holes in the plastic outer frame. Or a string can be attached to the plastic outer frame.
[0015] Regarding the invention described in claim 7 Embodiment B7 (Figs. 22 - 29) Fold a colorless transparent plastic plate into a substantially square shape, attach a polarizing plate inside the upper plate of the outer frame, and attach a polarizing plate to the inside of the lower plate on a semi - transparent plastic at a 90 - degree dark field. Push the crystal balls into the holes on both sides (including the recesses of R) and hold them with the elasticity of the plastic. By shining strong light from behind and rotating the crystal balls in all directions, bull's - eyes can be made to appear on the surface of the crystal balls.
[0016] Regarding the invention described in claim 8 Embodiment B8 (Figs. 22, 34 - 36) Weld or bond the joints in Fig. 22 to fix them and prevent the crystal balls from falling. Welding or bonding a reinforcing plate to the joint in Fig. 22 will increase the strength. Fold and extend the joint in Fig. 22 at the bottom surface to double the bottom surface and widen the welding or bonding surface to increase the strength. Fig. 34 is a diagram without joints by injection molding. Fig. 35 is a diagram with a thinner plate thickness. Fig. 36 is a diagram with a longer overall length. There are methods of welding or bonding after pushing the crystal balls into the outer frame and methods of pushing them in with a hand press after welding or bonding. Adjust the thickness and the upper and lower lengths of the plastic plate frame according to the size of the crystal balls, and push them into the holes on both sides with a hand press to prevent the crystal balls from falling. As the method (1) Make the plastic plate thinner to facilitate press - fitting (Fig. 35). (2) To increase the elasticity of the plastic, make the upper and lower parts longer to facilitate press - fitting (Fig. 36). (3) Warm the plastic to make it soft, facilitating press-fitting. (4) Press-fit by combining ▲1▼▲2▼▲3▼ according to the size of the crystal ball.
[0017] Regarding the invention described in claim 9 B Embodiment 9 (Figs. 30 - 32) Inserting a quarter-wave plate a into Fig. 22 results in Fig. 30. The quarter-wave plate a uses a cross-sectional view. Fig. 31 is a view with the quarter-wave plate b of Fig. 32 attached. By fixing the crystal ball through the holes on the side surface of the plastic outer frame, an upper and lower space can be provided between the crystal ball and the polarizing plate. When rotating the quarter-wave plate in the upper or lower space at the position where the bull's-eye floats on the crystal ball, it can be changed to a left crystal or a right crystal.
[0018] Regarding the invention described in claim 10 B Embodiment 10 When rotating the rotating polarizing plate at the position where the bull's-eye floats on the surface of the crystal ball in Fig. 33, the color and shape of the bull's-eye can be changed. The color of the bull's-eye varies according to the size of the crystal ball. The smaller the size of the crystal ball, the clearer the color change of the color circle. It is also possible to insert and rotate the quarter-wave plate a into Fig. 33.
[0019] Regarding the invention described in claim 11 B Embodiment 11 Attach a strap or string to the hole of the plastic outer frame in the left side view of Fig. 24. Or a string can be attached to the plastic outer frame.
Brief Description of the Drawings
[0020]
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Explanation of Reference Signs
[0021] 1 Quartz Crystal 2 Colorless Transparent Plastic 3 Translucent Plastic 4 Polarizer 5 Rotatable Polarizer 6 1 / 4-Wavelength Plate a (Thin) 7 1 / 4-Wavelength Plate b (Thick) 8 Intermediate Plate for Securing the Quartz Crystal 9 Hole in the Intermediate Plate for Securing the Quartz Crystal 10 Holes for Securing the Quartz Crystal at Two Places on the Side 11 Straps / String Attachment Holes 12 Strong Light
Claims
1. The crystal ball bull's eye is set using the elasticity of a colorless, transparent plastic outer frame to hold the crystal ball in place, and polarizing plates are placed above and below the crystal ball. The polarizing plates are crossed at 90 degrees and aligned with the dark field. A strong light is shone from behind, and the crystal ball is pinched with your fingertips and rotated in all directions, allowing you to find a beautiful bull's eye (uniaxial optical axis) on the surface of the crystal ball. This accessory is characterized in that a space is provided between the crystal ball and the polarizing plate, and a quarter-wave plate is inserted and rotated to change the crystal into either a left-handed crystal (left-handed spiral) or a right-handed crystal (right-handed spiral).
2. The accessory according to claim 1, characterized in that the outer frame of the plastic plate has three flat levels, top, middle and bottom, and a hole is drilled in the middle plate, and a crystal ball is inserted between the top and middle plates and held in place by the elasticity of the plastic, thereby providing a space between the crystal ball and the bottom plate in which a quarter-wave plate can be inserted and rotated.
3. The ornament according to claim 1 or 2, characterized in that a plastic plate is extended from the upper plate to the middle plate over the entire surface of the crystal ball in the front view, or extended to the lower plate and the seams are welded or glued to prevent the crystal ball from falling off.
4. The accessory according to claims 1, 2 and 3, characterized in that the outer frame of the plastic for setting the crystal is integrated without any seams, thereby preventing the crystal ball from falling off.
5. The accessory described in claim 1 is characterized in that the plastic frame is roughly rectangular, and does not use holes in the middle plate to hold the crystal in the vertical direction. The crystal ball is inserted into the holes on the left and right sides and is held in place by the holes on both sides and the elasticity of the plastic plate, leaving two spaces between the crystal ball and the upper and lower polarizing plates, allowing the quarter-wave plates to be inserted and rotated.
6. The accessory according to claims 1 and 5, characterized in that the crystal ball is pushed into the hole on the side and the joint of the plastic joint is welded and glued, or the crystal ball is pushed into the hole on the side after the joint of the plastic joint is welded and glued to prevent the crystal ball from falling out.
7. The crystal ball is pressed into the holes on both sides by the elasticity of the plastic, preventing it from falling out.
8. 8. The accessory according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the color and shape of the bull's eye change by rotating the polarizing plate.
9. The accessory according to claims 1, 2, 3, 4, 5, 6, 7 and 8, characterized in that a space is provided between the crystal ball and the polarizing plate so that the entire crystal ball can be seen, and the crystal ball can be held with the fingertips and rotated in all directions.
10. The accessory according to claims 1, 2, 3, 4, 5, 6, 7, 8 and 9, characterized in that holes are provided on the side of the plastic for attaching a strap or string.