US4830899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light reflection material, its manufacture and application
Assignee: NISSEN CHEMICAL INDUSTRY Co Ltd
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Filing: 1987-06-29
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Granted: 1989-05-16
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Expires: 2007-06-29
Abstract
Abstract A light reflection material comprises transparent body of organic glass having therein a thin through hole or holes whose inner wall is smooth. This material is useful for an ornamental material, a lighting material, eye-obstructing material, shading material, etc. This material is manufactured by pouring a raw material into a mold within which a thread or threads of synthetic fiber are straightly or curvedly set according to aimed pattern and pulling the thread or threads out of the formed body to form a thin hole or holes or pulling the thread or threads to separate them from the inner wall of the hole or holes. As a result of it, a hole or holes of a shape and number corresponding to those of the thread or threads are formed in the formed body.
Inventors
- 👤 Sumio Nakahashi
- 👤 Fumihiko Miyamae
- 👤 Nobuki Seike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:14
CPC Classifications
F; F21; F21V; F21V7/00; B; B44; B44F; B44F1/00; B44F1/02; B44F1/08; B44F1/10; F21V3/00; F21V3/04; F21W; F21W2121/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24744
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
87 words
A light reflection material comprising organic glass in a predetermined shape which has an outer edge, said organic glass including one or more thin through holes formed therein, each thin through hole having an entrance end and an exit end located in the outer edge of the organic glass, each thin through hole further having a predetermined configuration, and a diameter of about 0.1-2.0 mm and wherein each thin through hole has a smooth inner wall which reflects at least some rays of visible light incident thereupon.
Claim 2
Dependent Claim
87 words
A light reflection material comprising organic glass in a predetermined shape which has an outer edge, said organic glass including one or more thin through holes formed therein, each thin through hole having an entrance end and an exit end located in the outer edge of the organic glass, each thin through hole further having a predetermined configuration, and a diameter of about 0.1-2.0 mm and wherein each thin through hole has a smooth inner wall which reflects at least some rays of visible light incident thereupon.
Claim 3
Dependent Claim
16 words
The light reflection material of claim 1, wherein the one or more through holes are straight.
Claim 4
Dependent Claim
16 words
The light reflection material of claim 1, wherein the one or more through holes are non-linear.
Claim 5
Dependent Claim
66 words
The light reflection material of claim 1, wherein at least some of the thin through holes each have a thread of synthetic fiber contained therein, the thread having an outer surface at least a portion of which is separated from the inner wall of the through hole in which it is contained to define a clearance, whereby the clearance is able to be filled with air.
Claim 6
Dependent Claim
27 words
The light reflection material of claim 1, wherein at least the inner wall of the one or more through holes are colored by pigment, dye or paint.
Claim 7
Dependent Claim
26 words
The light reflection material of claim 1, wherein the cross-section of each of the one or more through holes is approximately circular, ellipsoidal, square or rectangular.
Claim 8
Dependent Claim
41 words
The light reflection material of claim 1, wherein the predetermined shape of the organic glass is a plate having an upper surface and a lower surface and wherein the through holes are disposed between the upper surface and the lower surface.
Claim 9
Dependent Claim
17 words
The light reflection material of claim 1, wherein the thin through holes are circular in cross section.
Claim 10
Dependent Claim
18 words
The light reflection material of claim 8, wherein the diameter of the through holes is about 0.5-1.5 mm.
Claim 11
Dependent Claim
17 words
The light reflection material of claim 1, wherein the organic glass includes at least two through holes.
Claim 12
Dependent Claim
18 words
The light reflection material of claim 1, wherein the through holes are arranged to form a voluntary design.
Claim 13
Dependent Claim
14 words
The light reflection material of claim 1, wherein the through holes are arranged parallely.
Claim 14
Dependent Claim
47 words
The light reflection material of claim 10, wherein the predetermined shape of the organic glass is a plate having a first surface and a second surface and wherein the through holes are positioned at different distances relative to each other from the first surface of the plate.
Claim 15
Dependent Claim
57 words
The light reflection material of claim 13, further including a mirror disposed on the second surface of the plate, whereby light emitted by a light source positioned at or near the outer edge of the plate will be reflected by the thin through holes and/or the mirror towards the first surface of the plate for surface illumination.
Claim 16
Dependent Claim
16 words
The light reflection material of claim 14, further including a light-scattering layer on the first surface.
Claim 17
Dependent Claim
18 words
The light reflection material of claim 1, wherein the diameter of the through holes is about 0.5-1.5 mm.
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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |