US3582183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical mass store
Assignee: US Philips Corp
•
Filing: 1968-12-03
•
Granted: 1971-06-01
•
Expires: 1988-12-03
Abstract
Abstract An optical mass store uses a beam deflector to position a first beam within an angular range and an image multiplier to form the deflected beam into N angularly separated additional beams scanning in synchronism with the first beam. The mutually synchronized additional beams are used to read out memory elements at a rate N times the rate of optical store employing a single unmultiplied beam.
Inventors
- 👤 Uwe Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:37
CPC Classifications
G; G11; G11B; G11B11/00; G11B11/10; G11B11/105; G11B11/10532; G02; G02F; G02F1/00; G02F1/29; G02F1/31; G11B11/10502; G11B7/00; G11B7/002; G11B7/0033; G11C; G11C13/00; G11C13/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
56 words
An optical mass store, comprising a storage plane divided into storage elements, an electro-optical light beam deflector, and beam-multiplying means positioned between the deflector and the storage plane for angularly separating a light beam passing through the deflector into a plurality of subbeams and for simultaneously projecting the subbeams onto the elements of the storage plane.
Claim 2
Dependent Claim
56 words
An optical mass store, comprising a storage plane divided into storage elements, an electro-optical light beam deflector, and beam-multiplying means positioned between the deflector and the storage plane for angularly separating a light beam passing through the deflector into a plurality of subbeams and for simultaneously projecting the subbeams onto the elements of the storage plane.
Claim 3
Dependent Claim
55 words
An optical mass store as claimed in claim 1, further comprising a beam-expanding optical system means positioned between the deflector and the multiplying means for increasing the diameter and decreasing the angular range of the deflected beam, whereby the angular range of the deflected beam, whereby the angular range of the subbeams is similarly decreased.
Claim 4
Dependent Claim
31 words
An optical store as claimed in claim 2, wherein the number of storage elements corresponding to the number of subbeams, further comprising an individual optical detector aligned with each storage element.
Claim 5
Dependent Claim
23 words
An optical mass store as claimed in claim 3, further comprising a diaphragm for storage element to a subbeam during the writing process.
Claim 6
Dependent Claim
63 words
An optical mass store as claimed in claim 3, wherein the storage elements are composed of a material exhibiting the Faraday effect, wherein the scanning beams and subbeams are of sufficient intensity to heat each storage element above the Curie point, and further comprising an individual controllable magnet proximate each storage element for controlling the writing of information into an associated storage element.
Claim 7
Dependent Claim
60 words
An optical mass store as claimed in claim 2, further comprising a collimating optical means for forming the light resulting from the illumination of eaCh element by a subbeam into a plurality of parallel beams, a light-detecting element, and a second light deflector aligned with the parallel beams for selectively deflecting one of the parallel beams on the light detector.
Claim 8
Dependent Claim
112 words
An optical mass store as claimed in claim 2, wherein the storage elements are composed of a material alterable by light intensities above a predetermined threshold intensity, further comprising a source of light having an intensity less than the threshold intensity aligned with the first beam deflector, a second source of light having an intensity less than the threshold intensity, and a second light deflector positioned between the storage plane and the second source of light for selectively projecting the light from the second light source to any individual storage element, the sum of the intensities of light from the first and second light sources having an intensity above the threshold intensity.
Claim 9
Dependent Claim
24 words
An optical mass store as claimed in claim 7, further comprising a beam splitter between the second deflector and the second source of light.
Claim 10
Dependent Claim
39 words
An optical mass store as claimed in claim 8, further comprising means at the site of the beam splitter for linearly polarizing the light from the first and second light sources in planes at right angles to one another.
Claim 11
Dependent Claim
26 words
An optical mass store as claimed in claim 8, the first and second light sources have different wavelengths, and wherein the beam splitter has dichroic properties.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |