发明名称 Domestic appliances/home automation image projection mechanism having first image projection Fresnel lens and second increased lens type increasing image size/ projecting front space image.
摘要 The image projection mechanism has a Fresnel lens (1) so that an image (3) of an object (4) is placed in space in front of the Fresnel lens to an observer. A second Fresnel lens (2) collects light from the first Fresnel lens and because of its shape and an increase in lens types of 20 providing a bigger image.
申请公布号 FR2801715(A1) 申请公布日期 2001.06.01
申请号 FR19990014840 申请日期 1999.11.25
申请人 BOCQUET MAURICE 发明人 BOCQUET MAURICE
分类号 G02B3/08;G02B27/22;(IPC1-7):G09F19/12;G01G19/44;G01G23/32 主分类号 G02B3/08
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