FR725313A - Device applicable to cameras for the automatic adjustment of illumination - Google Patents

Device applicable to cameras for the automatic adjustment of illumination

Info

Publication number
FR725313A
FR725313A FR725313DA FR725313A FR 725313 A FR725313 A FR 725313A FR 725313D A FR725313D A FR 725313DA FR 725313 A FR725313 A FR 725313A
Authority
FR
France
Prior art keywords
cameras
illumination
automatic adjustment
device applicable
applicable
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)
Inventor
Odon Riszdorfer
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 filed Critical
Application granted granted Critical
Publication of FR725313A publication Critical patent/FR725313A/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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/04—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark
    • G03B7/06—Control effected by hand adjustment of a member that senses indication of a pointer of a built- in light-sensitive device, e.g. by restoring point to a fixed associated reference mark by a follow-up movement of an associated reference mark to the pointer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR725313D 1930-10-23 1931-10-23 Device applicable to cameras for the automatic adjustment of illumination Expired FR725313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US725313XA 1930-10-23 1930-10-23

Publications (1)

Publication Number Publication Date
FR725313A true FR725313A (en) 1932-05-11

Family

ID=22108196

Family Applications (1)

Application Number Title Priority Date Filing Date
FR725313D Expired FR725313A (en) 1930-10-23 1931-10-23 Device applicable to cameras for the automatic adjustment of illumination

Country Status (1)

Country Link
FR (1) FR725313A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741456C (en) * 1933-10-29 1943-11-11 Ig Farbenindustrie Ag Camera with electric light meter
DE751203C (en) * 1936-07-02 1952-09-22 Hans Ferdinand Toennies Photoelectric light meter attached to a photographic camera
DE941339C (en) * 1938-04-02 1956-04-05 Leitz Ernst Gmbh Exposure meter for cinema cameras

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741456C (en) * 1933-10-29 1943-11-11 Ig Farbenindustrie Ag Camera with electric light meter
DE751203C (en) * 1936-07-02 1952-09-22 Hans Ferdinand Toennies Photoelectric light meter attached to a photographic camera
DE941339C (en) * 1938-04-02 1956-04-05 Leitz Ernst Gmbh Exposure meter for cinema cameras

Similar Documents

Publication Publication Date Title
FR763279A (en) Device for the automatic adjustment of the diaphragm of cinematographic cameras according to the degree of lighting of the scene
FR725313A (en) Device applicable to cameras for the automatic adjustment of illumination
FR824881A (en) Automatic water adjustment device for bathtubs
FR675244A (en) Automatic brake wear adjustment device
FR823784A (en) Photoelectric adjustment device for diaphragms of cameras
FR722999A (en) Automatic winding device for timepieces
FR816032A (en) Adjusting device for cameras
FR715690A (en) Device for the automatic lighting of swinging barriers
FR770035A (en) Automatic exposure adjustment device for cameras
FR780260A (en) Image suppression device for superheterodyne receivers
FR753733A (en) Device for automatic loading of cinematographic devices
FR694668A (en) Reflector pose device for cameras
FR690369A (en) Still image stop device for cinematographic projection devices
FR798714A (en) Method and devices for the automatic adjustment of cameras
FR758410A (en) Automatic freeze-frame device for projection equipment
CA304351A (en) Focusing device for cameras
FR633405A (en) Device for automatic adjustment of film tension
FR818595A (en) Device for adjusting the diaphragm and shutter applicable to still cameras
FR690172A (en) Stereoscopic sighting device for cameras
FR770239A (en) Device for automatic adjustment of the amplification coefficient
FR823763A (en) Finder device for cameras
FR729083A (en) Device for automatic lighting of telephone devices
FR841266A (en) Device for projecting television images
FR729346A (en) Automatic chimney draft adjustment device
FR720792A (en) Automatic stop device for phonographs