US6804053B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
See-through light transmitting type screen
Assignee: Kimoto Co Ltd
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Filing: 2000-12-21
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Granted: 2004-10-12
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Expires: 2020-12-21
Abstract
Abstract A light transmitting type screen that enables the viewer to see through to its back side, when the screen is stuck on transparent object such as a show window or a transparent window glass or when it is used as a transparent object, and that is capable of forming clear images projected from a projected thereon is provided. The screen includes a light scattering layer having a front-scattering property, which is composed of spherical microparticles having a mean particle diameter in a certain range dispersed in a binder having a refraction index in a certain range. The light scattering layer is sandwiched between transparent objects such as high-molecular weight resin sheets or show window glass via an adhesive layer or the like.
Inventors
- 👤 Hideki Etori
- 👤 Yasunori Sugiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:19
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60; G03B21/62
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
96 words
A see-through light transmitting type screen simultaneously allowing viewing through the screen to see background behind the screen and displaying images projected thereon, said screen comprising a light scattering layer providing Mie-scattering and having a front-scattering property and a transparent layer laminated on at least one side of said light scattering layer, said light scattering layer comprising a transparent binder and spherical microparticles dispersed in said transparent binder, wherein the spherical microparticles have a mean particle diameter of 1.0 μm-10.0 μm and a refraction index relative to that of the transparent binder n satisfying 0.91<n<1.09 (n≠1).
Claim 2
Dependent Claim
96 words
A see-through light transmitting type screen simultaneously allowing viewing through the screen to see background behind the screen and displaying images projected thereon, said screen comprising a light scattering layer providing Mie-scattering and having a front-scattering property and a transparent layer laminated on at least one side of said light scattering layer, said light scattering layer comprising a transparent binder and spherical microparticles dispersed in said transparent binder, wherein the spherical microparticles have a mean particle diameter of 1.0 μm-10.0 μm and a refraction index relative to that of the transparent binder n satisfying 0.91<n<1.09 (n≠1).
Claim 3
Dependent Claim
24 words
The light transmitting type screen of claim 1 further comprising an anti-reflection layer provided on at least one side of the light scattering layer.
Claim 4
Dependent Claim
27 words
The light transmitting type screen of claim 1 , wherein the screen has a haze of 3.0% or more and distinctness of image of 60.0% or more.
Claim 5
Dependent Claim
21 words
The light transmitting type screen of claim 1 , wherein the transparent binder is glass or a high molecular weight resin.
Claim 6
Dependent Claim
29 words
The light transmitting type screen of claim 1 , wherein the transparent layer has a refraction index lower than that of the transparent binder of the light scattering layer.
Claim 7
Dependent Claim
29 words
The light transmitting type screen of claim 1 , wherein the transparent layer has a refraction index higher than that of the transparent binder of the light scattering layer.
Claim 8
Dependent Claim
15 words
The light transmitting type screen of claim 1 , wherein said transparent binder is glass.
Claim 9
Dependent Claim
19 words
The light transmitting type screen of claim 1 , wherein said transparent binder is a high molecular weight resin.
Claim 10
Dependent Claim
22 words
The light transmitting type screen of claim 1 , wherein the spherical microparticles have a mean particle diameter of 2.0 μm-6.0 μm.
Claim 11
Dependent Claim
21 words
The light transmitting type screen of claim 1 , wherein said spherical microparticles are didspensed in said transparent binder in three-dimensions.
Claim 12
Dependent Claim
15 words
The light transmitting type screen of claim 1 wherein said transparent layer is plate glass.
Claim 13
Dependent Claim
19 words
The light transmitting type screen of claim 1 wherein said spherical microparticles do not protrude from the light-scattering layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-10-12 | 2008-04-12 | 2008-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-10-12 | 2012-04-12 | 2012-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-10-12 | 2016-04-12 | 2016-10-12 | $7700.00 | Window Closed / Lapsed |