Patent US3763372A successfully refreshed from Google Patents.
US3763372A
Expired / Lapsed
US
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Zone plate optics monolithically integrated with photoelectric elements
Assignee: Inventors and Investors Inc
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Filing: 1971-11-02
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Granted: 1973-10-02
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Expires: 1991-11-02
Abstract
Abstract Zone plate optics is monolithically integrated with a phase filter and a photoelectric element to provide an image conforming to the shape of the photoelectric element. Saving of space at optimized light input is achieved by multiple reflections of light beam or by close packing of optical elements in a two dimensional matrix of hexagonal symmetry.
Inventors
- 👤 A Fedotowsky
- 👤 K Lehovec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:16
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/18; G02B5/1876; G02B5/188; G02B5/1885; G03; G03F; G03F7/00; G03F7/70; G03F7/70383; H; H10; H10F; H10F39/00; H10F39/10; H10F39/103; H10F39/107; H10F77/00; H10F77/40; H10F77/413; H10H; H10H20/00; H10H20/80
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
60 words
A zone plate optics monolithically integrated and optically aligned with a photoelectric element, said zone plate optics and said photoelectric element located on the surface of a solid substrate having two substantially parallel surface sections, whereby radiation focussed by said optics with respect to said photoelectric element is reflected at least once on each of said two parallel surface sections.
Claim 2
Dependent Claim
60 words
A zone plate optics monolithically integrated and optically aligned with a photoelectric element, said zone plate optics and said photoelectric element located on the surface of a solid substrate having two substantially parallel surface sections, whereby radiation focussed by said optics with respect to said photoelectric element is reflected at least once on each of said two parallel surface sections.
Claim 3
Dependent Claim
15 words
The structure of claim 1 whereby said reflecting surface sections are provided with metallic mirrors.
Claim 4
Dependent Claim
22 words
The structure of claim 1 whereby said photoelectric element is placed in a central opening of one of said reflecting surface sections.
Claim 5
Dependent Claim
31 words
The structure of claim 1 whereby the focal length of said zone plate optics is an integEr multiple of the spacing of said surface sections, said integer being at least 3.
Claim 6
Dependent Claim
33 words
The structure of claim 4 whereby said integer is an odd number and said zone plate optics and said photoelectric element are arranged each coplanar with a different one of said surface sections.
Claim 7
Dependent Claim
30 words
The structure of claim 5 whereby the position of said photoelectric element is at the primary focal point and also at a secondary focal point of the zone plate lens.
Claim 8
Dependent Claim
30 words
The structure of claim 6 whereby said odd integer is 3 and said secondary focal point has a focal length one-third of the focal length of said primary focal point.
Claim 9
Dependent Claim
54 words
A zone plate optics integrated with a phase-shift filter to suppress intensity at the focal point on the optical axis and produce an intensity maximum in the focal plane along a line-shaped image contour sourrounding the optical axis in combination with a photoelectric element of a shape substantially congruent with said line-shaped image contour.
Claim 10
Dependent Claim
54 words
A zone plate optics integrated with a phase-shift filter to suppress intensity at the focal point on the optical axis and produce an intensity maximum in the focal plane along a line-shaped image contour sourrounding the optical axis in combination with a photoelectric element of a shape substantially congruent with said line-shaped image contour.
Claim 11
Dependent Claim
24 words
The structure of claim 8 whereby said image contour is a circle and said photoelectric element is ring-shaped of radius equal to said circle.
Claim 12
Dependent Claim
13 words
The structure of claim 8 whereby said photoelectric element is a light modulator.
Claim 13
Dependent Claim
13 words
The structure of claim 8 whereby said photoelectric element is a light emitter.
Claim 14
Dependent Claim
14 words
The structure of claim 8 whereby said photoelectric element is a sensor of radiation.
Claim 15
Dependent Claim
17 words
The structure of claim 12 whereby said sensor is the gate junction of a field effect transistor.
Claim 16
Dependent Claim
22 words
The structure of claim 8 whereby said photoelectric element is located in a thin epitaxial semiconducting layer on a substantially insulating substrate.
Claim 17
Dependent Claim
51 words
The structure of claim 14 whereby said photoelectric element comprises a first layer of one conductivity type in said epitaxial layer, surrounded by a second layer of the other conductivity type in said epitaxial layer, said image contour coinciding substantially with the p-n junction between said first and said second layers.
Claim 18
Dependent Claim
73 words
The structure of claim 15 whereby said second layer is in turn surrounded by a third layer of the same conductivity type as said first layer, the junctions between said first and said second layers, and between said second and said third layers substantially parallel to each other and closely spaced from each other, such as to enable transistor action across said second layer, said image contour substantially coinciding with said second layer.
References Cited (Backward Citations)
US3569997A
Cited
US3631251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |