US 2018/0025668 A1 · STARRY SKY REPRODUCING SHEET AND DEVICE

Abstract

[Technical Problem] It was difficult to replicate the wide-ranging brightness magnitude of tiny stars through the starry sky reproduction apparatus to replicate the whole sky with details as deeply as the observation through astronomical telescopes. [Solution to Problem] According to the present invention, the starry sky reproduction apparatus is a laminating sheet that is pasted up N layers (N≧2) of light reducing effect sheet. Under the condition that M and L is integer number, magnitude is N≧M>L≧1, and when the laminating sheet is stacked L layers, the L-Layer light transmittable through hole will be formed. Light beam can go over the sheet passing through the hole. Additionally, M-Layer light transmittable through hole is formed under the condition that the laminating sheet is stacked M layers, and the hole is located in the different position of the L-Layer light transmittable through hole, then the L layer-transit beam, which passes through the L-Layer light transmittable through hole, and the M layer-transit beam, which passes through the M-Layer light transmittable through hole, can be observed as 2 different transmitted light with different brightness magnitude. That can be happened with the difference of the light redaction-ratio between the L and M beams.

Claims16

Dependent claims

A starry sky reproducing sheet, comprising 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 comprising, 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 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.

2 more elements

The starry sky reproducing device according to claim 15, wherein the device comprises:

a plurality of light emitting elements;
light-emitting element lighting control means that controls lighting of the light emitting elements;
and
a plurality of optical fibers that are disposed on the back side of the starry sky reproducing sheet and through the starry sky reproducing sheet, and that lead light incident on ends of the fibers from the light emitting elements to the observer side of the starry sky reproducing sheet;
wherein the transmitted-light stars and light-emitting element stars that are produced by the light led by the optical fibers from the light emitting elements can be observed by an observer simultaneously;
and
wherein, when the light-emitting element stars have an average intensity of A and the transmitted-light stars have an average intensity of B, A>B holds.

4 more elements

Dependencies are inferred from the claim text.

Starry sky reproducing sheet and device

Life of this patent

Starry sky reproducing sheet and device

Life of this patent

Abstract

Claims16