FR1571031A - - Google Patents

Info

Publication number
FR1571031A
FR1571031A FR1571031DA FR1571031A FR 1571031 A FR1571031 A FR 1571031A FR 1571031D A FR1571031D A FR 1571031DA FR 1571031 A FR1571031 A FR 1571031A
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
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR1571031A publication Critical patent/FR1571031A/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
    • G03B21/14—Details
    • G03B21/53—Means for automatic focusing, e.g. to compensate thermal 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
    • G03B21/001—Slide projectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Focusing (AREA)
  • Control Of Position Or Direction (AREA)
  • Telescopes (AREA)
FR1571031D 1967-06-23 1968-06-21 Expired FR1571031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64826467A 1967-06-23 1967-06-23

Publications (1)

Publication Number Publication Date
FR1571031A true FR1571031A (en) 1969-06-13

Family

ID=24600098

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1571031D Expired FR1571031A (en) 1967-06-23 1968-06-21

Country Status (5)

Country Link
AT (1) AT311694B (en)
CH (1) CH474072A (en)
DE (1) DE1772702A1 (en)
FR (1) FR1571031A (en)
GB (1) GB1191587A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111562714B (en) * 2020-05-22 2021-09-21 复旦大学 Multispectral modulation imaging device based on multi-wavelength LED light source

Also Published As

Publication number Publication date
CH474072A (en) 1969-06-15
GB1191587A (en) 1970-05-13
DE1772702A1 (en) 1971-05-27
AT311694B (en) 1973-11-26

Similar Documents

Publication Publication Date Title
AU425114B2 (en)
AT298283B (en)
FR1571031A (en)
AU416737B2 (en)
AU342066A (en)
AU2277767A (en)
AU2528767A (en)
AU1273466A (en)
AU610966A (en)
AU2454867A (en)
AU2977667A (en)
AU3151267A (en)
AU2256867A (en)
AU2116667A (en)
AU3189468A (en)
AU25066A (en)
AU1677166A (en)
AU408412B2 (en)
AU459699A (en)
AU3054676A (en)
BE713735A (en)
AU97666A (en)
BE162295A (en)
BE426053A (en)
AU2406369A (en)

Legal Events

Date Code Title Description
ST Notification of lapse