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US5148309A Expired / Lapsed US ⏱️ 0.0 years remaining

Reflective type screen

Assignee: Toppan Inc
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Filing: 1991-12-11
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Granted: 1992-09-15
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Expires: 2011-12-11
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Abstract

Abstract A reflective type screen comprising a reflective surface layer a polarizing plate layer located in front of said reflective surface layer and a diffusion layer located in front of the polarized plate layer, wherein the reflective surface layer, the polarizing plate layer and the diffusion layer are laminated together using an adhesive to form an integral structure is disclosed. In addition, a reflective type screen comprising a reflective surface layer subjected to mirror-surface processing and laid on a flexible substrate, a polarizer and a diffusion layer arranged for covering the polarizer therewith wherein the reflective surface layer, the polarizer and the diffusion layer are laminated together using an adhesive to form an integral structure is disclosed. Additionally, a reflective type screen comprising a polarizer a protective layer located in front of the polarizer for protecting the polarizer and adhesively secured to the polarizer, a surface of the protective layer located on the incident side being subjected to diffusion processing, and another protective layer located behind the polarizer for protecting the polarizer and adhesively secured to the polarizer, a surface of the protective layer located on the incident side being subjected to mirror-surface processing, wherein the polarizer, the protective layer and the another protective layer are laminated together using an adhesive to form an integral structure is disclosed.

Inventors

  • 👤 Chihiko Yamada
  • 👤 Teruo Suzuki
  • 👤 Tsutomu Yoshida
  • 👤 Shinji Kubota

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 10:47
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60; G03B21/604

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 107 words
A reflective type screen comprising; a reflective surface layer to which an incident light containing a polarized light is irradiated and from which the reflected light having the same polarization direction as that of said incident light is irradiated to build a projected image, a polarizing plate layer located in front of said reflective surface layer and having a permeation axis extending in the same direction as the polarization direction of said incident light, and a diffusion layer located in front of said polarizing plate layer wherein said reflective surface layer, said polarizing plate layer and said diffusion layer are laminated together to form an integral structure.
Claim 2
Dependent Claim 107 words
A reflective type screen comprising; a reflective surface layer to which an incident light containing a polarized light is irradiated and from which the reflected light having the same polarization direction as that of said incident light is irradiated to build a projected image, a polarizing plate layer located in front of said reflective surface layer and having a permeation axis extending in the same direction as the polarization direction of said incident light, and a diffusion layer located in front of said polarizing plate layer wherein said reflective surface layer, said polarizing plate layer and said diffusion layer are laminated together to form an integral structure.
Claim 3
Dependent Claim 28 words
The reflective type screen as claimed in claim 1, wherein said polarizing plate layer is composed of two layers of polarizing plates each having a same permeation axis.
Claim 4
Dependent Claim 82 words
A reflective type screen comprising; a reflective surface layer subjected to mirror-surface processing and laid on a flexible substrate, a polarizer having a permeation axis extending in the same direction as the polarization direction of an incident light containing a polarized light, said incident light being reflected therefrom to build a projected image, and a diffusion layer arranged for covering said polarizer therewith wherein said reflective surface layer, said polarizer and said diffusion layer are laminated together to form an integral structure.
Claim 5
Dependent Claim 82 words
A reflective type screen comprising; a reflective surface layer subjected to mirror-surface processing and laid on a flexible substrate, a polarizer having a permeation axis extending in the same direction as the polarization direction of an incident light containing a polarized light, said incident light being reflected therefrom to build a projected image, and a diffusion layer arranged for covering said polarizer therewith wherein said reflective surface layer, said polarizer and said diffusion layer are laminated together to form an integral structure.
Claim 6
Dependent Claim 128 words
A reflective type screen comprising; a polarizer having a permeation axis extending in the same direction as the polarization direction of an incident light containing a polarized light, said incident light being reflected therefrom to build a projected image, a protective layer located in front of said polarizer for protecting said polarizer and adhesively secured to said polarizer, a surface of said protective layer located on the incident side being subjected to diffusion processing, and another protective layer located behind said polarizer for protecting said polarizer and adhesively secured to said polarizer, a surface of said another protective layer located on the incident side being subjected to mirror-surface processing wherein said polarizer, said protective layer and said another protective layer are laminated together to form an integral structure.
Claim 7
Dependent Claim 128 words
A reflective type screen comprising; a polarizer having a permeation axis extending in the same direction as the polarization direction of an incident light containing a polarized light, said incident light being reflected therefrom to build a projected image, a protective layer located in front of said polarizer for protecting said polarizer and adhesively secured to said polarizer, a surface of said protective layer located on the incident side being subjected to diffusion processing, and another protective layer located behind said polarizer for protecting said polarizer and adhesively secured to said polarizer, a surface of said another protective layer located on the incident side being subjected to mirror-surface processing wherein said polarizer, said protective layer and said another protective layer are laminated together to form an integral structure.

References Cited (Backward Citations)

US3507548A Cited
US3653740A Cited
US3811750A Cited
US4025160A Cited
US4201449A Cited
US4436377A Cited
US4652084A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-09-15 1996-03-16 1996-09-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-09-15 2000-03-16 2000-09-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-09-15 2004-03-16 2004-09-15 $7700.00 Window Closed / Lapsed

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