FR2191142A1 - - Google Patents

Info

Publication number
FR2191142A1
FR2191142A1 FR7323636A FR7323636A FR2191142A1 FR 2191142 A1 FR2191142 A1 FR 2191142A1 FR 7323636 A FR7323636 A FR 7323636A FR 7323636 A FR7323636 A FR 7323636A FR 2191142 A1 FR2191142 A1 FR 2191142A1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7323636A
Other languages
French (fr)
Other versions
FR2191142B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2191142A1 publication Critical patent/FR2191142A1/fr
Application granted granted Critical
Publication of FR2191142B1 publication Critical patent/FR2191142B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/46—Systems using spatial filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
FR7323636A 1972-07-01 1973-06-28 Expired FR2191142B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722232359 DE2232359A1 (en) 1972-07-01 1972-07-01 PROCESS FOR IMAGE ENHANCEMENT BY DEFOLDING WITH THE HELP OF SEVERAL INVERSE FILTERS OF COMPLEMENTARY APERTURES

Publications (2)

Publication Number Publication Date
FR2191142A1 true FR2191142A1 (en) 1974-02-01
FR2191142B1 FR2191142B1 (en) 1976-06-18

Family

ID=5849389

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7323636A Expired FR2191142B1 (en) 1972-07-01 1973-06-28

Country Status (8)

Country Link
JP (1) JPS4953854A (en)
BE (1) BE801745A (en)
CA (1) CA1004891A (en)
DE (1) DE2232359A1 (en)
FR (1) FR2191142B1 (en)
GB (1) GB1438167A (en)
IT (1) IT990828B (en)
NL (1) NL7308914A (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
BE801745A (en) 1974-01-02
NL7308914A (en) 1974-01-03
IT990828B (en) 1975-07-10
CA1004891A (en) 1977-02-08
JPS4953854A (en) 1974-05-25
DE2232359A1 (en) 1974-01-03
GB1438167A (en) 1976-06-03
FR2191142B1 (en) 1976-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse