Unisometric reflection display, information holder using unisometric reflection display

Patent metadata

Field	Value
Publication number	US-9889699-B2
Application number	US-201414543171-A
Country	US
Kind code	B2
Filing date	Nov 17, 2014
Priority date	Jun 1, 2012
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A unisometric reflection display having a light transmissivity includes reflectors included in a reflector holding layer of a thin film form. The reflectors incline at a fixed direction and a fixed angle to a plane of the reflector holding layer. Light incident from a first direction is reflected on a front surface of a reflector to be inhibited from transmitting through the reflector holding layer. Light incident from a second direction to a reflector is reflected on a front surface of the reflector and a rear surface of another reflector adjacent the reflector at a front surface side, or reflected this way a plurality of times to transmit through the reflector holding layer.

First claim

What is claimed is:

1. An information holder comprising:
an unisometric reflection display and a print layer which are stacked, the unisometric reflection display having a light transmissivity and including a reflector holding layer of a thin film form, wherein
the reflector holding layer is divided, along a plane direction of the reflector holding layer, into a plurality of sections,
each of the plurality of sections includes reflectors, each of the reflectors being inclined in a fixed direction and in a fixed inclination angle with respect to a plane of the reflector holding layer,
for each of the plurality of sections, the inclination angles of the reflectors in the section are a same,
the inclination angles of the reflectors of the plurality of sections gradually vary from section to section of the plurality of sections,
the reflectors are made of a metal, and are covered with a protection layer made of a metallic compound or ceramics,
light incident from a first direction is reflected on a front surface of a reflector to be inhibited from transmitting through the reflector holding layer, and
light incident from a second direction to one of the reflectors is reflected on a front surface of the one of the reflectors and a rear surface of another of the reflectors adjacent the one of the reflector at a front surface side, or reflected this way a plurality of times to transmit through the reflector holding layer.

2. The information holder of claim 1 , wherein part of the reflectors is metal or a metallic compound, and another part of the reflectors is a transparent reflection layer made of a transparent highly-reflective material.

3. The information holder of claim 1 , wherein inclining reflectors are arranged not to overlap with each other when observed from a direction perpendicular to the plane of the reflector holding layer.

4. The information holder of claim 1 , wherein, of the inclining reflectors, an interval of the reflectors in an inclining direction is not constant and no periodicity is formed in position of the reflectors.

5. The information holder of claim 1 , wherein, in at least one section of the reflector holding layer, a reflectivity when observed from a first direction is 80% or more, and a transmissivity when observed from a second direction is 50% or more.

6. The information holder of claim 1 , wherein, in at least one section of the reflector holding layer, a transmissivity when observed from a direction perpendicular to the plane of the reflector holding layer is 50% or more.

7. The information holder of claim 1 , wherein, in at least one section of the unisometric reflection display, a transmissivity when observed from a direction perpendicular to the plane of the reflector holding layer is 50% or more.

Assignees

• Toppan Printing Co Ltd

Inventors

• Yashiki Kazuhiro

Classifications

• B42D25/00

  Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof (printing processes to produce identification or security features B41M3/14) · CPC title

• B42D25/45 Primary

  Associating two or more layers · CPC title

• B42D25/351

  Translucent or partly translucent parts, e.g. windows · CPC title

• G02B17/006

  Systems in which light light is reflected on a plurality of parallel surfaces, e.g. louvre mirrors, total internal reflection [TIR] lenses (Fresnel mirrors G02B5/09, Fresnel lenses G02B3/08) · CPC title

• B42D25/373

  Metallic materials · CPC title