{"id":"cameo-glass","no":521,"name":"Cameo Glass","ja":"カメオ・グラス","era":"Roman era–","family":"器と工芸の技","kind":"技法","collection":"Dictionary expansion 26","addedAt":"2026-08-19","source":{"title":"Getty Research Institute — Art & Architecture Thesaurus: cameo glass (300181908)","url":"https://vocab.getty.edu/page/aat/300181908"},"reference":{"status":"verified","pageUrl":"https://vocab.getty.edu/page/aat/300181908","credit":"Getty Research Institute — Art & Architecture Thesaurus: cameo glass (300181908)","gallery":[{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Arte%20romana%2C%20coppa%20da%20vino%20con%20scene%20di%20bacco%20e%20ariadne%2C%2025ac-25%20dc%20ca..JPG?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Arte%20romana%2C%20coppa%20da%20vino%20con%20scene%20di%20bacco%20e%20ariadne%2C%2025ac-25%20dc%20ca..JPG","credit":"《バッコスとアリアドネの酒杯》ローマ 前25–後25年頃 ゲッティ・ヴィラ — Wikimedia Commons / CC BY-SA 3.0"},{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Cameo%20vase%20by%20Thomas%20Webb.jpg?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Cameo%20vase%20by%20Thomas%20Webb.jpg","credit":"トマス・ウェッブ・アンド・サンズ《カメオ・グラスの花器》— Wikimedia Commons / CC BY-SA 4.0"},{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Cameo%20Glass%20Vase%20D%E2%80%99argental.jpg?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Cameo%20Glass%20Vase%20D%E2%80%99argental.jpg","credit":"ダルジャンタル《カメオ・グラスの花器》— Wikimedia Commons / CC BY-SA 4.0"}]},"essence":"色の違うガラスを二層以上に重ね、外側の層を彫り・切削・彫刻で削り落として図を出す被せガラスの技法。Getty の分類でも材料の側に置かれる。図は塗られたものではなく削り残されたもので、残した厚みがそのまま不透明度になる。","cues":["明るい像が、濃い地の上に彫刻のように盛り上がる","削りの浅いところは下の地色が透けて沈み、厚く残したところだけが不透明になる","地は一様な一色で、階調は像の側にしかない","輪郭が線ではなく段差でできているので、斜めから光を当てると像自身の影が落ちる"],"intents":["技術","高級","静けさ"],"works":["二層の面から一方を削って図を起こす表現を作るとき、輪郭を線ではなく段差と影で持たせる","空押しや箔押しのように色を足さない印刷で、厚みの差だけで図版を成立させたいとき"],"recipe":{"type":"文字も像と同じ層から削り出す。線の太さを彫りの幅として決め、髪の毛のように細い書体を選ばない。","layout":"濃い地を一色で広く取り、その上に明るい像をひとつ置く。地には模様を入れず、像との間に何も挟まない。","material":"対比する色のガラスを重ね、外側を削る。削り残す厚みで半透明から不透明までの階調を作る。"},"avoid":"地と像の明度差だけを真似て平らに塗り分けると、彫りの深さが作る半透明の中間が消えて切り絵になる。","colors":["#1C2B5A","#EDE7DA","#7C89A8"],"motif":"graphic","pair":["stained-glass","art-nouveau"],"study":["被せガラスの断面を見て、外層と地の層が何枚重ねられているか数える","同じ像のなかで薄く削った部分と厚く残した部分を比べ、透ける色がどこで切り替わるか観察する","Getty の cased glass の下にどんな技法が並んでいるかを辿り、cameo glass との違いを確かめる"],"en":{"essence":"Cased glass built from two or more layers in contrasting colours, where the outer layer is carved, cut or engraved away so the design stands out from the ground. Getty classifies it as a material rather than a period style. The image is not painted but left behind, and the thickness left standing is what decides how opaque it reads.","cues":["A pale image standing up in relief over a darker ground","Where the cut runs deep the ground colour shows through and the image sinks; only the thickest passages go fully opaque","The ground is one even colour and all the tonal range sits in the image","Edges are steps rather than drawn lines, so raking light throws a shadow off the image itself"],"works":["Building an image out of two stacked surfaces, where the edge is carried by a step and its shadow instead of a drawn line","Working in blind emboss or foil, where nothing is added in colour and the whole image has to come from difference in thickness"],"recipe":{"type":"Cut the lettering out of the same layer as the image. Let the stroke width be a carving width, and avoid hairline faces.","layout":"A wide field of one dark colour with a single pale image on it. Keep the ground plain and put nothing between the two.","material":"Layers of contrasting glass with the outer one cut away. The thickness you leave standing gives the range from translucent to fully opaque."},"avoid":"Copying only the light and dark contrast as two flat fills loses the translucent middle that depth of cut produces, and the result reads as cut paper.","study":["looking at a cross section of cased glass and counting how many layers of outer casing and ground are stacked","comparing thinly cut areas and thickly left areas within one image, and observing where the transmitted colour switches","following what techniques the Getty lists under cased glass, and confirming how cameo glass differs"]}}