Ptolemy48 於 2005 年創立於日本福井。品牌名源自天文學家托勒密的星座表，寓意如宇宙群星般永遠閃耀。眼鏡由鯖江頂級工匠以傳統技藝結合現代科技手工打造，每副鏡架兼具時尚美感、舒適佩戴與光學功能，代表世界頂級水準。
Ptolemy48 熱銷的系列有 Excalibur 與地雕彫金系列。Excalibur 系列以亞瑟王傳說中的聖劍為靈感，以 925 純銀致敬，象徵王者力量。地雕彫金系列則由日本匠人以傳統雕金技法手工雕刻，使紋樣立體生動，並在鏡腿上融入精緻的洛可哥設計，展現細膩與華麗。
Ptolemy48 was founded in 2005 in Fukui, Japan. The brand name is derived from the star catalog of the astronomer Claudius Ptolemy, symbolizing a wish to shine eternally like the constellations of the universe. The eyewear is handcrafted by top artisans in Sabae, combining traditional craftsmanship with modern technology. Each frame embodies fashion aesthetics, wearing comfort, and optical functionality, representing the highest standard in the world.
Ptolemy48’s best-selling collections include the Excalibur Series and the Ground Carving Engraving Series. The Excalibur Series is inspired by the legendary sword from the tales of King Arthur and is crafted as a tribute in 925 sterling silver, symbolizing the power of kings. The Ground Carving Engraving Series is meticulously carved by Japanese artisans using traditional engraving techniques, creating vivid, three-dimensional patterns. The temples are adorned with refined Rococo designs, showcasing delicacy and elegance.