Star-Shaped Diamond Faceting for Thin Watch Dial Setting
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Solution Overview
Problem
High-end watches require stones with original shapes that are thin enough to fit on a dial without fracturing, while maintaining brilliance and aesthetic appeal, as conventional stones with unique shapes often exceed the dial's thickness and interfere with the watch hands.
Innovation Solution
A star-shaped diamond is produced with specific facet arrangements and a cutting process using a laser to achieve a thin, aesthetically pleasing design compatible with dial placement, accompanied by a bezel and fixing means for invisible attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional stones with unique shapes are used to achieve original shapes and aesthetic appeal, then the aesthetic appearance is improved, but the thickness increases and interferes with watch hands movement
Solution Approach 1:
The patent applies parameter changes by precisely controlling the thickness dimension of the stone to be less than 1.5 mm (preferably between 0.5-1.0 mm), which is a significant reduction from conventional uniquely-shaped stones. This parameter modification allows the stone to maintain its original shape and aesthetic appeal while fitting within the constrained space of the watch dial without interfering with hand movement.
2Length of moving object
If the stone thickness is reduced to fit on the dial, then the compatibility with dial placement is improved, but the risk of fracturing increases during cutting
Solution Approach 1:
The patent replaces conventional mechanical cutting methods with laser technology for cutting and shaping the thin stone. This substitution eliminates mechanical contact and physical stress that would cause fracturing during the cutting process, enabling the production of extremely thin stones (less than 1.5 mm) while maintaining their structural integrity and avoiding defects associated with traditional mechanical fabrication.
3Length of moving object
If the stone thickness is reduced to fit on the dial, then the compatibility with dial placement is improved, but the brilliance and aesthetic appearance may be compromised
Solution Approach 1:
The patent applies local quality by creating a multi-faceted surface structure on the stone with precisely angled facets (e.g., 45-degree angles) that optimize light reflection and refraction. This localized structural modification ensures that even though the overall thickness is reduced to less than 1.5 mm, the stone maintains exceptional brilliance and aesthetic appearance through its faceted geometry that maximizes light interaction within the limited thickness.
4Ease of manufacture
If conventional cutting methods are used to create unique shapes, then the manufacturing process is simpler, but the precision and control over thin dimensions are insufficient
Solution Approach 1:
The patent replaces conventional mechanical cutting methods with laser technology, which provides superior precision and control over thin dimensions. The laser cutting process enables accurate thickness control within the range of 0.5-1.0 mm while maintaining ease of manufacture through a streamlined digital fabrication process that eliminates the complexity of manual mechanical cutting for such precise tolerances.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The star-shaped diamond achieves optimal brilliance and aesthetic appeal while being thin enough to fit on a watch dial without hindering the watch hands, with a height of less than 2 mm and precise facet angles for secure crimping, ensuring the stone's integrity and visual effect.
Implementation Method 1
a cutting process using a laser to achieve a thin, aesthetically pleasing design
Data Source
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Figure 5~6
AI summary
The present invention relates to a method for producing a stone (1), in particular a diamond, in the shape of a star with several branches, said method comprising the steps of: - providing a base stone (1' ) having a brilliant cut, said stone (1') comprising a so-called base crown (4'), a so-called base yoke (3') and a so-called base girdle (6') joining the crown (4') of base and the base yoke (3') and defining a plane, - Size of a plurality of facets (a, b, c, d, e, f, g, h, i) on the crown (4'), the yoke (3') and the girdle (6') respectively referred to as the base, to obtain a transformed stone delimited by a perimeter, - Laser cutting of the perimeter of said transformed stone to produce the star shape.