FR823023A - Téléobjectif photographique - Google Patents

Téléobjectif photographique

Info

Publication number: FR823023A
Authority: FR; France
Prior art keywords: telephoto lens; photographic; photographic telephoto; lens; telephoto
Prior art date: 1936-06-23
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

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.)

ZEISS CARL SOC

Original Assignee

ZEISS CARL SOC

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.)

1936-06-23

Filing date

1937-06-14

Publication date

1938-01-12

1937-06-14 Application filed by ZEISS CARL SOC filed Critical ZEISS CARL SOC

1938-01-12 Application granted granted Critical

1938-01-12 Publication of FR823023A publication Critical patent/FR823023A/fr

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Lenses (AREA)

FR823023D 1936-06-23 1937-06-14 Téléobjectif photographique Expired FR823023A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DEZ23266D DE717126C (de)	1936-06-23	1936-06-23	Photographisches Fernobjektiv

Publications (1)

Publication Number	Publication Date
FR823023A true FR823023A (fr)	1938-01-12

Family

ID=7625855

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR823023D Expired FR823023A (fr)	1936-06-23	1937-06-14	Téléobjectif photographique

Country Status (2)

Country	Link
DE (1)	DE717126C (fr)
FR (1)	FR823023A (fr)

1936
- 1936-06-23 DE DEZ23266D patent/DE717126C/de not_active Expired
1937
- 1937-06-14 FR FR823023D patent/FR823023A/fr not_active Expired

Also Published As

Publication number	Publication date
DE717126C (de)	1942-02-07

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