发明申请
- 专利标题: Multilayer Body
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申请号: US15977621申请日: 2018-05-11
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公开(公告)号: US20180264869A1公开(公告)日: 2018-09-20
- 发明人: Andreas Schilling , Wayne Robert Tompkin , Achim Hansen
- 申请人: OVD Kinegram AG
- 优先权: DE102009040975.0 20090911
- 主分类号: B42D25/45
- IPC分类号: B42D25/45 ; G02B3/00 ; B42D25/324 ; B42D25/21 ; B42D25/29
摘要:
A multilayer body includes a transparent first layer. In the transparent first layer, a multiplicity of microlenses arranged in accordance with a microlens grid are impressed in a first region. Furthermore, the multilayer body includes a second layer, which is arranged below the first layer and in a fixed position with respect to the first layer and has a multiplicity of microimages arranged in accordance with a microimage grid and in each case in an at least regional overlap with one of the microlenses of the microlens grid for the purpose of generating a first optically variable information item. The grid pitches of the microimage grid and of the microlens grid in each case in at least one spatial direction are less than 300 μm.
公开/授权文献
- US11077700B2 Multilayer body 公开/授权日:2021-08-03
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