World's First 3D Engraving Technology in Glass Bottoms: cupustone®

CTI Corporation

World’s First 3D Engraving Technology in Glass Bottoms: cupustone®
Fuji Rock Glass cupustone<sup>®</sup> "Crane and Airplane"

Fuji Rock Glass cupustone® "Crane and Airplane"

Introducing a revolutionary technology that enables the display of engraved images visible from the glass's side.

cupustone®, a patented technology developed through years of research, employs a laser to carve images within the glass bottom. The engraving principle involves directing laser light to generate numerous micro-cracks, which then scatter light to form images inside the glass. Unlike conventional laser engraving, our technology allows image visibility from the side by adjusting laser output and point density. This is a global first in engraving technology.

3D internal engravings are clearly visible against a black background.

3D internal engravings are clearly visible against a black background.

Continued Innovation

Our unique technology, cupustone®, invented in 2015, overcame previous limitations to achieve 3D photo engraving in glass bottoms. In 2018, we launched cupustone VI (Vertical In) for 3D engraving on vertical and curved surfaces. In 2019, we developed cupustone VIP (Vertical In Photography) for high-quality photo engraving visible from the glass's side. In 2022, we introduced cupustone VIP BB (Black Behind Vertical In Photography), where the glass shape acts as a convex lens to display a 180-degree black background, enhancing the engraved image.
Right: cupustone<sup>®</sup> Glass "N700S Shinkansen" <br>Left: Fuji Rock Glass (cupustone<sup>®</sup> Glass) "Crane and Airplane"

Right: cupustone® Glass "N700S Shinkansen"
Left: Fuji Rock Glass (cupustone® Glass) "Crane and Airplane"

Showcase: cupustone® Glass Masterpieces

Our Mt. Fuji Rock Glass cupustone® "Crane and Airplane" is a handcrafted item that blends traditional Edo Glass craftsmanship with modern 3D laser engraving.

Similarly, the cupustone® Glass "N700S Shinkansen" combines two patented technologies to present a crisp 3D internal engraving against a black background, regardless of placement.
Image of the production process

Image of the production process

Technology & Environment Behind cupustone®

Our technical prowess has garnered international recognition and media attention. The 3D crystal engraving data is crafted by globally acknowledged 3D designer Aymee.B. (pseudonym), who utilizes our proprietary technology to produce world-class 3D crystal images in a way that stays true to every detail, shade and texture of the piece.

Additionally, we handle all production in-house, catering to small and large batches, with custom orders available based on quantity.