Patent US4565756A successfully refreshed from Google Patents.
US4565756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color imaging device
Assignee: US Philips Corp
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Filing: 1984-10-12
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Granted: 1986-01-21
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Expires: 2004-10-12
Abstract
Abstract A color filter having filter elements respectively passing light of the colors red, green and blue is provided on a semiconductor image sensor which comprises a system of photosensitive elements. The filter elements are separated by grooves which eliminate the running of dye liquid during dyeing the various systems of filter elements and which hence eliminate color defects. Instead of grooves, the filter elements may also be separated by regions which have been converted into a structure which is substantially impervious to liquid. The color filters may also be used in a vidicon-type camera tube for imaging color pictures.
Inventors
- 👤 Howard C. Needs
- 👤 Lodewijk Blok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:02
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/30; H10F77/306; H10F77/331; G; G03; G03F; G03F7/00; G03F7/0005; G03F7/0007; H04; H04N; H04N25/00; H04N25/10; H04N25/11; H04N25/13; H04N25/134; H10F39/00; H10F39/80; H10F39/805; H10F39/8053
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
109 words
A method of manufacturing a color imaging device comprising the steps of: providing an imaging device substrate; providing a transparent layer on the substrate; providing, by a photolithographic process, a pattern of filter elements separated by separation regions in the transparent layer; providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a first system of filter elements for passing light of a first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the first system; and removing the barrier layer.
Claim 2
Independent Claim
109 words
A method of manufacturing a color imaging device comprising the steps of: providing an imaging device substrate; providing a transparent layer on the substrate; providing, by a photolithographic process, a pattern of filter elements separated by separation regions in the transparent layer; providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a first system of filter elements for passing light of a first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the first system; and removing the barrier layer.
Claim 3
Dependent Claim
93 words
A method as claimed in claim 1, characterized in that the method further comprises the steps of: providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a second system of filter elements for passing light of a second color, the second color being different from the first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the second system; and removing the barrier layer.
Claim 4
Independent Claim
126 words
A method of manufacturing a color imaging device comprising the steps of: providing an imaging device substrate; providing a transparent layer on the substrate; providing a pattern of separation regions in the transparent layer, said separation regions defining a pattern of separate filter elements, said separation regions being formed by causing portions of the transparent layer to become insoluble; providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a first system of filter elements for passing light of a first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the first system; and removing the barrier layer.
Claim 5
Independent Claim
126 words
A method of manufacturing a color imaging device comprising the steps of: providing an imaging device substrate; providing a transparent layer on the substrate; providing a pattern of separation regions in the transparent layer, said separation regions defining a pattern of separate filter elements, said separation regions being formed by causing portions of the transparent layer to become insoluble; providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a first system of filter elements for passing light of a first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the first system; and removing the barrier layer.
Claim 6
Dependent Claim
93 words
A method as claimed in claim 3, characterized in that the method further comprises the steps of: providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a second system of filter elements for passing light of a second color, the second color being different from the first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the second system; and removing the barrier layer.
Claim 7
Dependent Claim
24 words
A method as claimed in claim 4, characterized in that the separation regions are formed by exposing portions of the transparent layer to light.
Claim 8
Dependent Claim
23 words
A method as claimed in claim 4, characterized in that the separation regions are formed by chemically treating portions of the transparent layer.
Claim 9
Independent Claim
128 words
A method of manufacturing a color imaging device comprising the steps of: providing an imaging device substrate; providing a transparent layer on the substrate; providing a pattern of separation regions in the transparent layer, said separation regions defining a pattern of separate filter elements, said separation regions being formed by causing portions of the transparent layer to become impervious to liquid; providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a first system of filter elements for passing light of a first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the first system; and removing the barrier layer.
Claim 10
Independent Claim
128 words
A method of manufacturing a color imaging device comprising the steps of: providing an imaging device substrate; providing a transparent layer on the substrate; providing a pattern of separation regions in the transparent layer, said separation regions defining a pattern of separate filter elements, said separation regions being formed by causing portions of the transparent layer to become impervious to liquid; providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a first system of filter elements for passing light of a first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the first system; and removing the barrier layer.
Claim 11
Dependent Claim
93 words
A method as claimed in claim 7, characterized in that the method further comprises the steps of: providing a barrier layer over the transparent layer; providing, by a photolithographic process, a pattern of apertures in the barrier layer, the pattern of apertures corresponding to the locations of a second system of filter elements for passing light of a second color, the second color being different from the first color; providing a dye, through the apertures in the barrier layer, to dye the filter elements of the second system; and removing the barrier layer.
Claim 12
Dependent Claim
24 words
A method as claimed in claim 8, characterized in that the separation regions are formed by exposing portions of the transparent layer to light.
Claim 13
Dependent Claim
23 words
A method as claimed in claim 8, characterized in that the separation regions are formed by chemically treating portions of the transparent layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |