BE580970A - Optical device at one or more focal lengths. - Google Patents

Optical device at one or more focal lengths.

Info

Publication number
BE580970A
BE580970A BE580970A BE580970A BE580970A BE 580970 A BE580970 A BE 580970A BE 580970 A BE580970 A BE 580970A BE 580970 A BE580970 A BE 580970A BE 580970 A BE580970 A BE 580970A
Authority
BE
Belgium
Prior art keywords
optical device
focal lengths
focal
lengths
optical
Prior art date
Application number
BE580970A
Other languages
French (fr)
Inventor
Adolphe De Candt
Original Assignee
Adolphe De Candt
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 Adolphe De Candt filed Critical Adolphe De Candt
Priority to BE580970A priority Critical patent/BE580970A/en
Publication of BE580970A publication Critical patent/BE580970A/en

Links

BE580970A 1959-07-23 1959-07-23 Optical device at one or more focal lengths. BE580970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE580970A BE580970A (en) 1959-07-23 1959-07-23 Optical device at one or more focal lengths.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE580970A BE580970A (en) 1959-07-23 1959-07-23 Optical device at one or more focal lengths.

Publications (1)

Publication Number Publication Date
BE580970A true BE580970A (en) 1959-11-16

Family

ID=39579363

Family Applications (1)

Application Number Title Priority Date Filing Date
BE580970A BE580970A (en) 1959-07-23 1959-07-23 Optical device at one or more focal lengths.

Country Status (1)

Country Link
BE (1) BE580970A (en)

Similar Documents

Publication Publication Date Title
FR1301101A (en) Optical device
FR1308923A (en) Optical projection device
NL139635B (en) OPTICAL MASER DEVICE.
FR1279252A (en) Optical device at one or more focal lengths
DK111550B (en) Optical rangefinder and camera with one.
FR1280357A (en) Photographic lens with variable focal length
BE605338A (en) Semiconductor device.
FR1298106A (en) Optical device
BE580970A (en) Optical device at one or more focal lengths.
BE590456A (en) Variable focal length lens system.
BE602291A (en) Memory device.
BE590779R (en) Optical device with multiple focal lengths
BE602321A (en) Semiconductor device.
FR1290820A (en) 360 deg panoramic anamorphosis optical device.
FR1259007A (en) Simple construction variable focal length lens
FR93914E (en) Optical pointing device.
CH383027A (en) Tri-lens photographic lens
FR1339058A (en) Device widening the optical field of binoculars
FR1278778A (en) Variable focal length lens
FR1258948A (en) Variable focal length lens
FR1244934A (en) Variable focal length lens
FR1303692A (en) Photographic lens with variable focal length
BE575806A (en) Bending device.
FR1164612A (en) Wide-field optical viewfinder device
DE1917066U (en) OPTICAL IMAGING DEVICE.