FR1364879A - Construction de lentilles perfectionnée pour ensembles de projection de caractères - Google Patents

Construction de lentilles perfectionnée pour ensembles de projection de caractères

Info

Publication number
FR1364879A
FR1364879A FR941911A FR941911A FR1364879A FR 1364879 A FR1364879 A FR 1364879A FR 941911 A FR941911 A FR 941911A FR 941911 A FR941911 A FR 941911A FR 1364879 A FR1364879 A FR 1364879A
Authority
FR
France
Prior art keywords
lens construction
character projection
projection sets
advanced lens
advanced
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
FR941911A
Other languages
English (en)
Inventor
Donald Godfrey Gumpertz
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
Priority to FR941911A priority Critical patent/FR1364879A/fr
Application granted granted Critical
Publication of FR1364879A publication Critical patent/FR1364879A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/40—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character is selected from a number of characters arranged one beside the other, e.g. on a common carrier plate
    • G09F9/405—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character is selected from a number of characters arranged one beside the other, e.g. on a common carrier plate the selected character being projected on a common screen accommodating only one character at a time, to provide the same display position for all characters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
FR941911A 1963-07-18 1963-07-18 Construction de lentilles perfectionnée pour ensembles de projection de caractères Expired FR1364879A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR941911A FR1364879A (fr) 1963-07-18 1963-07-18 Construction de lentilles perfectionnée pour ensembles de projection de caractères

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR941911A FR1364879A (fr) 1963-07-18 1963-07-18 Construction de lentilles perfectionnée pour ensembles de projection de caractères

Publications (1)

Publication Number Publication Date
FR1364879A true FR1364879A (fr) 1964-06-26

Family

ID=8808631

Family Applications (1)

Application Number Title Priority Date Filing Date
FR941911A Expired FR1364879A (fr) 1963-07-18 1963-07-18 Construction de lentilles perfectionnée pour ensembles de projection de caractères

Country Status (1)

Country Link
FR (1) FR1364879A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516669A1 (fr) * 1981-11-18 1983-05-20 Ind Electronic Engineers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516669A1 (fr) * 1981-11-18 1983-05-20 Ind Electronic Engineers

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