FR578105A - Visual detection device for long wavelengths - Google Patents

Visual detection device for long wavelengths

Info

Publication number
FR578105A
FR578105A FR578105DA FR578105A FR 578105 A FR578105 A FR 578105A FR 578105D A FR578105D A FR 578105DA FR 578105 A FR578105 A FR 578105A
Authority
FR
France
Prior art keywords
detection device
visual detection
long wavelengths
wavelengths
long
Prior art date
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.)
Expired
Application number
Other languages
French (fr)
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.)
INFRA ROUGE PROCEDES CHARBONNE
Original Assignee
INFRA ROUGE PROCEDES CHARBONNE
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 INFRA ROUGE PROCEDES CHARBONNE filed Critical INFRA ROUGE PROCEDES CHARBONNE
Application granted granted Critical
Publication of FR578105A publication Critical patent/FR578105A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR578105D 1923-03-07 1924-03-06 Visual detection device for long wavelengths Expired FR578105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE578105X 1923-03-07

Publications (1)

Publication Number Publication Date
FR578105A true FR578105A (en) 1924-09-18

Family

ID=3873369

Family Applications (1)

Application Number Title Priority Date Filing Date
FR578105D Expired FR578105A (en) 1923-03-07 1924-03-06 Visual detection device for long wavelengths

Country Status (1)

Country Link
FR (1) FR578105A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549860A (en) * 1936-09-10 1951-04-24 Swanson Mark Method of and means for indicating a chosen area
US2580427A (en) * 1944-08-11 1952-01-01 Heiland Res Corp Recording system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549860A (en) * 1936-09-10 1951-04-24 Swanson Mark Method of and means for indicating a chosen area
US2580427A (en) * 1944-08-11 1952-01-01 Heiland Res Corp Recording system

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