FR2041898A5 - - Google Patents

Info

Publication number
FR2041898A5
FR2041898A5 FR6912556A FR6912556A FR2041898A5 FR 2041898 A5 FR2041898 A5 FR 2041898A5 FR 6912556 A FR6912556 A FR 6912556A FR 6912556 A FR6912556 A FR 6912556A FR 2041898 A5 FR2041898 A5 FR 2041898A5
Authority
FR
France
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
FR6912556A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR6912556A priority Critical patent/FR2041898A5/fr
Priority to CH1364569A priority patent/CH498416A/fr
Priority to BE738652D priority patent/BE738652A/xx
Priority to NL6916364A priority patent/NL6916364A/xx
Priority to DE19691954945 priority patent/DE1954945A1/de
Application granted granted Critical
Publication of FR2041898A5 publication Critical patent/FR2041898A5/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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/18—Devices for changing pictures in viewing apparatus or projectors with fade-in and fade-out effects
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
FR6912556A 1969-04-22 1969-04-22 Expired FR2041898A5 (enrdf_load_stackoverflow)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR6912556A FR2041898A5 (enrdf_load_stackoverflow) 1969-04-22 1969-04-22
CH1364569A CH498416A (fr) 1969-04-22 1969-09-10 Dispositif d'occultation du faisceau lumineux d'un projecteur de diapositives
BE738652D BE738652A (enrdf_load_stackoverflow) 1969-04-22 1969-09-10
NL6916364A NL6916364A (enrdf_load_stackoverflow) 1969-04-22 1969-10-30
DE19691954945 DE1954945A1 (de) 1969-04-22 1969-10-31 Einrichtung zum Abdecken des Lichtkegels von Diapositiv-Projektoren beim Bildwechsel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6912556A FR2041898A5 (enrdf_load_stackoverflow) 1969-04-22 1969-04-22

Publications (1)

Publication Number Publication Date
FR2041898A5 true FR2041898A5 (enrdf_load_stackoverflow) 1971-02-05

Family

ID=9032820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6912556A Expired FR2041898A5 (enrdf_load_stackoverflow) 1969-04-22 1969-04-22

Country Status (5)

Country Link
BE (1) BE738652A (enrdf_load_stackoverflow)
CH (1) CH498416A (enrdf_load_stackoverflow)
DE (1) DE1954945A1 (enrdf_load_stackoverflow)
FR (1) FR2041898A5 (enrdf_load_stackoverflow)
NL (1) NL6916364A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE1954945A1 (de) 1970-11-26
NL6916364A (enrdf_load_stackoverflow) 1970-10-26
CH498416A (fr) 1970-10-31
BE738652A (enrdf_load_stackoverflow) 1970-02-16

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse