发明名称 Binocular kaleidoscope
摘要 The invention relates to new and useful improvements in a kaleidoscope assembly. The primary object being to provide a kaleidoscope with a single pattern-producing device and a single reflecting tube provided with a binocular eyepiece assembly which allows the varying composite image produced by the kaleidoscope to be viewed comfortably with two eyes simultaneously.
申请公布号 US4820004(A) 申请公布日期 1989.04.11
申请号 US19860880579 申请日期 1986.06.30
申请人 BRISKIN, JONATHAN K. 发明人 BRISKIN, JONATHAN K.
分类号 G02B27/08;(IPC1-7):G02B23/00 主分类号 G02B27/08
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