FR891029A - Incident lighting device, in particular for optical devices - Google Patents

Incident lighting device, in particular for optical devices

Info

Publication number
FR891029A
FR891029A FR891029DA FR891029A FR 891029 A FR891029 A FR 891029A FR 891029D A FR891029D A FR 891029DA FR 891029 A FR891029 A FR 891029A
Authority
FR
France
Prior art keywords
lighting device
optical devices
incident lighting
incident
optical
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.)
GENEVOISE INSTR PHYSIQUE
Societe Genevoise dInstruments de Physique
Original Assignee
GENEVOISE INSTR PHYSIQUE
Societe Genevoise dInstruments de Physique
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 GENEVOISE INSTR PHYSIQUE, Societe Genevoise dInstruments de Physique filed Critical GENEVOISE INSTR PHYSIQUE
Application granted granted Critical
Publication of FR891029A publication Critical patent/FR891029A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR891029D 1942-01-28 1942-05-19 Incident lighting device, in particular for optical devices Expired FR891029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH891029X 1942-01-28

Publications (1)

Publication Number Publication Date
FR891029A true FR891029A (en) 1944-02-24

Family

ID=4545755

Family Applications (1)

Application Number Title Priority Date Filing Date
FR891029D Expired FR891029A (en) 1942-01-28 1942-05-19 Incident lighting device, in particular for optical devices

Country Status (1)

Country Link
FR (1) FR891029A (en)

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