JPS5515694B2 - - Google Patents

Info

Publication number
JPS5515694B2
JPS5515694B2 JP9655672A JP9655672A JPS5515694B2 JP S5515694 B2 JPS5515694 B2 JP S5515694B2 JP 9655672 A JP9655672 A JP 9655672A JP 9655672 A JP9655672 A JP 9655672A JP S5515694 B2 JPS5515694 B2 JP S5515694B2
Authority
JP
Japan
Prior art keywords
frame
intensity
establish
portions
central portion
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
JP9655672A
Other languages
English (en)
Other versions
JPS4843332A (ja
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
Publication of JPS4843332A publication Critical patent/JPS4843332A/ja
Publication of JPS5515694B2 publication Critical patent/JPS5515694B2/ja
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
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/42—Preventing damage to film due to abnormal operation of projector
    • 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
    • G03B19/18—Motion-picture cameras
    • 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
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2053—Intensity control of illuminating light
    • 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
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/50—Control devices operated by the film strip during the run
JP9655672A 1971-09-27 1972-09-26 Expired JPS5515694B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1414771 1971-09-27

Publications (2)

Publication Number Publication Date
JPS4843332A JPS4843332A (ja) 1973-06-22
JPS5515694B2 true JPS5515694B2 (ja) 1980-04-25

Family

ID=4398375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9655672A Expired JPS5515694B2 (ja) 1971-09-27 1972-09-26

Country Status (8)

Country Link
US (1) US3841743A (ja)
JP (1) JPS5515694B2 (ja)
AT (1) AT307879B (ja)
CH (1) CH534894A (ja)
DE (1) DE2247039C2 (ja)
GB (1) GB1344400A (ja)
IT (1) IT988400B (ja)
NL (1) NL7212284A (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2230619B2 (ja) * 1972-07-07 1978-05-12 Basf Ag
SE7212663L (ja) * 1972-09-29 1974-04-01 Octagon Med Prod
US4150886A (en) * 1976-08-26 1979-04-24 Airborne Mfg. Co. Motion picture projector system
DE102011080641A1 (de) * 2011-08-09 2013-02-14 Osram Ag Projektionseinheit und Verfahren zum Steuern der Projektionseinheit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1011593A (en) * 1911-02-23 1911-12-12 William H C Dudley Jr Kinetoscope-shutter.
US1812212A (en) * 1925-08-01 1931-06-30 William H Meyer Motion picture projector
US1900966A (en) * 1927-12-27 1933-03-14 Wilmot R Evans Projection apparatus
US1917408A (en) * 1930-10-01 1933-07-11 Eastman Kodak Co Film gate for motion picture apparatus
GB480267A (en) * 1935-10-03 1938-02-21 Kodak Ltd Improvements in or relating to motion picture or other projection apparatus
DE1120271B (de) * 1956-06-15 1961-12-21 Frieseke & Hoepfner Gmbh Anordnung zur Verminderung der Strahlungswaerme, insbesondere an Kinoprojektoren
US3532424A (en) * 1967-11-16 1970-10-06 Addressograph Multigraph Elliptical reflector for photocopying machine
US3428397A (en) * 1967-12-28 1969-02-18 Dennison Mfg Co Illumination in optical imaging apparatus

Also Published As

Publication number Publication date
NL7212284A (ja) 1973-03-29
DE2247039C2 (de) 1981-11-26
AT307879B (de) 1973-06-12
DE2247039A1 (de) 1973-04-05
IT988400B (it) 1975-04-10
US3841743A (en) 1974-10-15
CH534894A (fr) 1973-03-15
GB1344400A (en) 1974-01-23
JPS4843332A (ja) 1973-06-22

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