FR82731E - Device for controlling the focus of a shooting lens by examining the image observed through a reflex viewfinder coupled to this lens - Google Patents

Device for controlling the focus of a shooting lens by examining the image observed through a reflex viewfinder coupled to this lens

Info

Publication number
FR82731E
FR82731E FR917919A FR917919A FR82731E FR 82731 E FR82731 E FR 82731E FR 917919 A FR917919 A FR 917919A FR 917919 A FR917919 A FR 917919A FR 82731 E FR82731 E FR 82731E
Authority
FR
France
Prior art keywords
lens
examining
focus
controlling
image observed
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
FR917919A
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.)
Societe dOptique et de Mecanique de Haute Precision
Original Assignee
Societe dOptique et de Mecanique de Haute Precision
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 Societe dOptique et de Mecanique de Haute Precision filed Critical Societe dOptique et de Mecanique de Haute Precision
Priority to FR917919A priority Critical patent/FR82731E/en
Priority to GB21449/63A priority patent/GB1035990A/en
Priority to US285277A priority patent/US3230851A/en
Priority to CH709863A priority patent/CH404236A/en
Application granted granted Critical
Publication of FR82731E publication Critical patent/FR82731E/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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR917919A 1962-06-06 1962-12-07 Device for controlling the focus of a shooting lens by examining the image observed through a reflex viewfinder coupled to this lens Expired FR82731E (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR917919A FR82731E (en) 1962-12-07 1962-12-07 Device for controlling the focus of a shooting lens by examining the image observed through a reflex viewfinder coupled to this lens
GB21449/63A GB1035990A (en) 1962-06-06 1963-05-29 Optical system focussing device
US285277A US3230851A (en) 1962-06-06 1963-06-04 Device for checking the focus of a scene-shooting objective
CH709863A CH404236A (en) 1962-06-06 1963-06-06 Device for controlling the focus of a shooting lens by examining the image observed through a reflex viewfinder coupled to this lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR917919A FR82731E (en) 1962-12-07 1962-12-07 Device for controlling the focus of a shooting lens by examining the image observed through a reflex viewfinder coupled to this lens

Publications (1)

Publication Number Publication Date
FR82731E true FR82731E (en) 1964-04-03

Family

ID=8792371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR917919A Expired FR82731E (en) 1962-06-06 1962-12-07 Device for controlling the focus of a shooting lens by examining the image observed through a reflex viewfinder coupled to this lens

Country Status (1)

Country Link
FR (1) FR82731E (en)

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