FR1311935A - Visionneuse à grandissement variable - Google Patents

Visionneuse à grandissement variable

Info

Publication number
FR1311935A
FR1311935A FR877384A FR877384A FR1311935A FR 1311935 A FR1311935 A FR 1311935A FR 877384 A FR877384 A FR 877384A FR 877384 A FR877384 A FR 877384A FR 1311935 A FR1311935 A FR 1311935A
Authority
FR
France
Prior art keywords
variable magnification
magnification viewer
viewer
variable
magnification
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
FR877384A
Other languages
English (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.)
PHOTOTECHNIQUE
Original Assignee
PHOTOTECHNIQUE
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 PHOTOTECHNIQUE filed Critical PHOTOTECHNIQUE
Priority to FR877384A priority Critical patent/FR1311935A/fr
Application granted granted Critical
Publication of FR1311935A publication Critical patent/FR1311935A/fr
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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR877384A 1961-10-30 1961-10-30 Visionneuse à grandissement variable Expired FR1311935A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR877384A FR1311935A (fr) 1961-10-30 1961-10-30 Visionneuse à grandissement variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR877384A FR1311935A (fr) 1961-10-30 1961-10-30 Visionneuse à grandissement variable

Publications (1)

Publication Number Publication Date
FR1311935A true FR1311935A (fr) 1962-12-14

Family

ID=8765617

Family Applications (1)

Application Number Title Priority Date Filing Date
FR877384A Expired FR1311935A (fr) 1961-10-30 1961-10-30 Visionneuse à grandissement variable

Country Status (1)

Country Link
FR (1) FR1311935A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002021206A1 (fr) * 2000-09-07 2002-03-14 Guy Spencer Edney Unite de projection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002021206A1 (fr) * 2000-09-07 2002-03-14 Guy Spencer Edney Unite de projection
US6995906B2 (en) 2000-09-07 2006-02-07 Guy Spencer Edney Projection unit
CN1308767C (zh) * 2000-09-07 2007-04-04 盖伊·斯潘塞·埃德尼 投影组件

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