FR551921A - Diascopic and episcopic projection process - Google Patents

Diascopic and episcopic projection process

Info

Publication number
FR551921A
FR551921A FR551921DA FR551921A FR 551921 A FR551921 A FR 551921A FR 551921D A FR551921D A FR 551921DA FR 551921 A FR551921 A FR 551921A
Authority
FR
France
Prior art keywords
diascopic
projection process
episcopic projection
episcopic
projection
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)
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.)
ED LIESEGANG
Liesegang Ed
Original Assignee
ED LIESEGANG
Liesegang Ed
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 ED LIESEGANG, Liesegang Ed filed Critical ED LIESEGANG
Application granted granted Critical
Publication of FR551921A publication Critical patent/FR551921A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/08—Projectors or projection-type viewers; Accessories therefor affording epidiascopic projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR551921D 1921-08-29 1922-05-23 Diascopic and episcopic projection process Expired FR551921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE551921X 1921-08-29

Publications (1)

Publication Number Publication Date
FR551921A true FR551921A (en) 1923-04-17

Family

ID=6563215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR551921D Expired FR551921A (en) 1921-08-29 1922-05-23 Diascopic and episcopic projection process

Country Status (1)

Country Link
FR (1) FR551921A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545945A1 (en) * 1983-05-11 1984-11-16 Sopelem OBSERVATION APPARATUS FOR ALTERNATIVELY LOOTING AT LEAST TWO OBJECTS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545945A1 (en) * 1983-05-11 1984-11-16 Sopelem OBSERVATION APPARATUS FOR ALTERNATIVELY LOOTING AT LEAST TWO OBJECTS
EP0126002A1 (en) * 1983-05-11 1984-11-21 Societe D'optique, Precision Electronique Et Mecanique - Sopelem Viewing apparatus

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