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US3581102A Expired / Lapsed US ⏱️ 0.0 years remaining

Photoelectric and electric light conversion element

Assignee: Canon Inc
•
Filing: 1968-12-26
•
Granted: 1971-05-25
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Expires: 1988-12-26
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Abstract

Abstract In photoelectric transducing apparatus of the type having an electron beam scanning a surface coated with electron activated light emitting material to convert graphic information into electrical output signals, or modulated in accordance with electrical input signals to convert the input signals into graphic information, a light transmitting means comprises a plurality of optical fibers fused together in juxtaposed relation to form a plate having a solid, voidless cross section of the optical fibers. The light transmitting means may comprise a plate severed from the fused fibers and fritted to the surface of a cathode-ray tube, in combination with a light transmitting channel formed of the fused optical fibers. The end faces of the channel may be formed either by cutting perpendicular to the lengths of the fibers or by cutting at an angle to such perpendicular.

Inventors

  • 👤 Kazuyoshi Nagao

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 02:49
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/892; G; G06; G06V; G06V10/00; G06V10/10; G06V10/12; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/0281

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 36 words
Light transmitting means, as claimed in claim 1, in which said first mentioned bundle has an output surface which is a plane polished surface extending at an acute angle to the length of said optical fibers.
Claim 2
Dependent Claim 29 words
For use in photoelectric transducing apparatus, light transmitting means, as claimed in claim 1, including a relatively elongated light receiving channel aligned with the output face of said plate.
Claim 3
Dependent Claim 17 words
Light transmitting means, as claimed in claim 3, in which said light receiving channel contains a prism.
Claim 4
Dependent Claim 17 words
Light transmitting means, as claimed in claim 3, in which said light transmitting channel contains a lens.
Claim 5
Dependent Claim 35 words
Light transmitting means, as claimed in claim 3, in which said transducing apparatus includes a cathode-ray tube having said electron beam and a faceplate; said fused optical fiber plate being fritted directly to said faceplate.
Claim 6
Dependent Claim 19 words
Light transmitting means according to claim 3 in which the light receiving channel is a fused optical fiber plate.
Claim 7
Dependent Claim 18 words
Light transmitting means according to claim 3 which further comprises a light shield along the light receiving channel.
Claim 8
Dependent Claim 23 words
Light transmitting means according to claim 3 which further comprises a light collecting means to receive reflective light from the light receiving channel.
Claim 9
Dependent Claim 60 words
Light transmitting means, as claimed in claim 3, in which said second mentioned bundle is divided into plural separate subbundles each having a respective output end face; said and respective differently colored filters each interposed between a respective output end face of a subbundle and said photoelectric cell; whereby colored graphic information may be converted into respective electrical output signals.

References Cited (Backward Citations)

US3043179A Cited
US3211540A Cited
US3267555A Cited
US3485609A Cited
US3345531A Cited
US3470319A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-05-24 1974-11-23 1975-05-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-05-24 1978-11-23 1979-05-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-05-24 1982-11-23 1983-05-25 $7700.00 Window Closed / Lapsed

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