US4765724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grating-film rainbow-producing laminar device
Assignee: Individual
•
Filing: 1986-03-28
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Granted: 1988-08-23
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Expires: 2006-03-28
Abstract
Abstract A grating-film iris-producing laminar device has one or more substrates and one or more sheets of two-dimensional grating films, wherein the sets of grooves on the grating films intersect at a selected angle, hence a large number of light-passing holes are formed. The device is constructed with the grating films fixed to the substrates and produces color patterns when it is positioned before any non-monochromatic light source. The two-dimensional grating films can be replaced by two or more sheets of one-dimensional grating films with the grooves on them to intersect at the selected angle.
Inventors
- 👤 Shang Huichun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:38
CPC Classifications
B; B44; B44F; B44F1/00; B44F1/06; B44F1/066; B44F1/08; B44F1/14
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
79 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: a two-dimensional grating-film having a plurality of sets of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and adhesive disposed at the peripheral edges of said substrates for holding said peripheral edges together.
Claim 2
Dependent Claim
79 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: a two-dimensional grating-film having a plurality of sets of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and adhesive disposed at the peripheral edges of said substrates for holding said peripheral edges together.
Claim 3
Dependent Claim
17 words
A device as claimed in claim 1, wherein said grating film is one two-dimensional grating film sheet.
Claim 4
Dependent Claim
18 words
A device as claimed in claim 1, wherein said grating film is two superimposed one-dimensional grating film sheets.
Claim 5
Dependent Claim
27 words
The device of claim 1, wherein said grooves are disposed on said grating film with a density in the range of about 50 to about 1200 lines/mm.
Claim 6
Dependent Claim
19 words
A device of claim 4, wherein said density is in the range of about 150 to about 600 lines/mm.
Claim 7
Dependent Claim
12 words
The device of claim 1, wherein said selected angle is approximately 90°.
Claim 8
Dependent Claim
16 words
The device of claim 1, wherein said grating film is mounted on said substrate by adhesive.
Claim 9
Dependent Claim
12 words
The device of claim 7, wherein said adhesive is an epoxy adhesive.
Claim 10
Dependent Claim
12 words
The device of claim 7, wherein said adhesive is transparent and stable.
Claim 11
Dependent Claim
24 words
The device of claim 1, wherein said substrate consist of material selected from the group consisting of silica glass, organic glass and transparent plastic.
Claim 12
Dependent Claim
22 words
The device of claim 1, wherein said grating film is comprised of material from the group consisting of gelatine and transparent plastic.
Claim 13
Dependent Claim
90 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: first and second transparent substrates disposed in registry; a two-dimensional grating film disposed between and in registry with said substrates, said grating film having a plurality of sets of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; and means disposed around the periphery of said substrates for holding said substrates together with said grating film held therebetween.
Claim 14
Dependent Claim
90 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: first and second transparent substrates disposed in registry; a two-dimensional grating film disposed between and in registry with said substrates, said grating film having a plurality of sets of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; and means disposed around the periphery of said substrates for holding said substrates together with said grating film held therebetween.
Claim 15
Dependent Claim
16 words
A device as claimed in claim 12, wherein said grating film is one two-dimensional grating sheet.
Claim 16
Dependent Claim
18 words
A device as claimed in claim 12, wherein said grating film is two superimposed one-dimensional grating film sheets.
Claim 17
Dependent Claim
14 words
A device as claimed in claim 12, wherein said selected angle is approximately 90°.
Claim 18
Dependent Claim
81 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: at least one two-dimensional grating-film having a plurality of sets of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and adhesive disposed at the peripheral edges of said substrates for holding said peripheral edges together.
Claim 19
Dependent Claim
81 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: at least one two-dimensional grating-film having a plurality of sets of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and adhesive disposed at the peripheral edges of said substrates for holding said peripheral edges together.
Claim 20
Dependent Claim
27 words
The device of claim 16, wherein said grooves are disposed on said grating film with a density in the range of about 50 to about 1200 lines/mm.
Claim 21
Dependent Claim
19 words
A device of claim 17, wherein said density is in the range of about 150 to about 600 lines/mm.
Claim 22
Dependent Claim
12 words
The device of claim 16, wherein said selected angle is approximately 90°.
Claim 23
Dependent Claim
80 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: at least two one-dimensional grating-films each having one set of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and adhesive disposed at the peripheral edges of said substrates for holding said peripheral edges together.
Claim 24
Dependent Claim
80 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: at least two one-dimensional grating-films each having one set of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and adhesive disposed at the peripheral edges of said substrates for holding said peripheral edges together.
Claim 25
Dependent Claim
27 words
The device of claim 20, wherein said grooves are disposed on said grating film with a density in the range of about 50 to about 1200 lines/mm.
Claim 26
Dependent Claim
19 words
A device of claim 21, wherein said density is in the range of about 150 to about 600 lines/mm.
Claim 27
Dependent Claim
12 words
The device of claim 20, wherein said selected angle is approximately 90°.
Claim 28
Dependent Claim
90 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: first and second transparent substrates disposed in registry; at least two one-dimensional grating films disposed between and in registry with said substrates, said grating film having one set of equally spaced parallel grooves with the groove of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; and means disposed around the periphery of said substrates for holding said substrates together with said grating film held therebetween.
Claim 29
Dependent Claim
90 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: first and second transparent substrates disposed in registry; at least two one-dimensional grating films disposed between and in registry with said substrates, said grating film having one set of equally spaced parallel grooves with the groove of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; and means disposed around the periphery of said substrates for holding said substrates together with said grating film held therebetween.
Claim 30
Dependent Claim
14 words
A device as claimed in claim 24, wherein said selected angle is approximately 90°.
Claim 31
Dependent Claim
75 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: a two-dimensional grating-film having a plurality of sets of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and means for mechanically holding the peripheral edges of said substrates together.
Claim 32
Dependent Claim
75 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: a two-dimensional grating-film having a plurality of sets of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and means for mechanically holding the peripheral edges of said substrates together.
Claim 33
Dependent Claim
77 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: at least two one-dimensional grating films each having one set of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and mechanical means for holding the peripheral edges of said substrates together.
Claim 34
Dependent Claim
77 words
A grating-film rainbow-producing device for use with a non-monochromatic light source comprising: at least two one-dimensional grating films each having one set of equally spaced parallel grooves with the grooves of each set intersecting with respective grooves in the other sets at a selected angle to form a plurality of light-passing ports; two transparent substrates with said grating-film disposed between said substrates in registry therewith; and mechanical means for holding the peripheral edges of said substrates together.
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) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |