lithophane
/ˈlɪθəʊfeɪn/noun
mass noun
1- a kind of ornamentation of porcelain visible when held to the light, produced by pressing designs into it when soft（透光时能显出装饰图案的）瓷器隐雕装饰。
1.1
- count noun an object with such a decoration隐雕瓷器。
词源
1940s: from Greek lithos 'stone' + -phanēs 'appearing'.