Invention Grant
- Patent Title: Starry sky reproducing sheet and device
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Application No.: US16678824Application Date: 2019-11-08
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Publication No.: US10909886B2Publication Date: 2021-02-02
- Inventor: Yasufumi Mase
- Applicant: Yasufumi Mase
- Applicant Address: JP Aichi
- Assignee: Yasufumi Mase
- Current Assignee: Yasufumi Mase
- Current Assignee Address: JP Aichi
- Agent Takeo Ohashi
- Priority: JP2015-025887 20150212
- Main IPC: G09B27/00
- IPC: G09B27/00 ; G09F13/02 ; G09F13/22 ; G09B5/02 ; G09F19/18 ; G09F13/00 ; G09F13/04

Abstract:
Disclosed is a starry sky reproducing sheet containing: N laminated light reducing sheets stuck together, each of which has homogeneous light reducing effects (where N is two or larger); the starry sky reproducing sheet containing, with M and L being two mutually different integers that are one or larger and N or smaller (M>L): L-layer transmission holes that are formed through L light reducing sheets stuck together, so that light beams pass therethrough; and M-layer transmission holes that are formed, through M light reducing sheets stuck together including the L light reducing sheets, at different positions from those of the L-layer transmission holes; wherein light beams incident on one face of the starry sky reproducing sheet pass through the L- and M-layer transmission holes while being attenuated at mutually different light reduction ratios to become L- and M-layer transmitted beams respectively which are visibly recognizable as transmitted-light stars having mutually different brightnesses.
Information query