FR2421394B2 - - Google Patents

Info

Publication number
FR2421394B2
FR2421394B2 FR7809152A FR7809152A FR2421394B2 FR 2421394 B2 FR2421394 B2 FR 2421394B2 FR 7809152 A FR7809152 A FR 7809152A FR 7809152 A FR7809152 A FR 7809152A FR 2421394 B2 FR2421394 B2 FR 2421394B2
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.)
Expired
Application number
FR7809152A
Other languages
French (fr)
Other versions
FR2421394A2 (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.)
Quantel SA
Original Assignee
Quantel SA
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 Quantel SA filed Critical Quantel SA
Priority to FR7809152A priority Critical patent/FR2421394A2/en
Priority to US05/896,079 priority patent/US4289379A/en
Priority to GB15032/78A priority patent/GB1596895A/en
Priority to DE2817525A priority patent/DE2817525C2/en
Priority to JP4867678A priority patent/JPS53135347A/en
Publication of FR2421394A2 publication Critical patent/FR2421394A2/en
Application granted granted Critical
Publication of FR2421394B2 publication Critical patent/FR2421394B2/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length
FR7809152A 1977-04-27 1978-03-29 Optical system with variable focal length lens - comprising fluid-filled cuvette and surface of variable curvature Granted FR2421394A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7809152A FR2421394A2 (en) 1978-03-29 1978-03-29 Optical system with variable focal length lens - comprising fluid-filled cuvette and surface of variable curvature
US05/896,079 US4289379A (en) 1977-04-27 1978-04-13 Optical system having a variable focal length
GB15032/78A GB1596895A (en) 1977-04-27 1978-04-17 Optical system having a variable focal length
DE2817525A DE2817525C2 (en) 1977-04-27 1978-04-21 Optical system with adjustable focal length
JP4867678A JPS53135347A (en) 1977-04-27 1978-04-24 Focus changeable optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7809152A FR2421394A2 (en) 1978-03-29 1978-03-29 Optical system with variable focal length lens - comprising fluid-filled cuvette and surface of variable curvature

Publications (2)

Publication Number Publication Date
FR2421394A2 FR2421394A2 (en) 1979-10-26
FR2421394B2 true FR2421394B2 (en) 1983-06-17

Family

ID=9206396

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7809152A Granted FR2421394A2 (en) 1977-04-27 1978-03-29 Optical system with variable focal length lens - comprising fluid-filled cuvette and surface of variable curvature

Country Status (1)

Country Link
FR (1) FR2421394A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531237B1 (en) * 1982-07-30 1986-01-24 Thomson Csf BIFOCAL OPTICS AND ITS USE IN A VIDEO FREQUENCY IMAGE SENSOR APPARATUS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1327503A (en) * 1971-02-05 1973-08-22 Bosch Gmbh Robert Optical lenses
FR2321711A1 (en) * 1975-08-19 1977-03-18 Thomson Brandt OPTICAL DEVICE WITH AUTOMATIC FOCUS AND OPTICAL READER INCLUDING SUCH A DEVICE

Also Published As

Publication number Publication date
FR2421394A2 (en) 1979-10-26

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