GB1418850A - Optical time display devices - Google Patents

Optical time display devices

Info

Publication number
GB1418850A
GB1418850A GB650474A GB650474A GB1418850A GB 1418850 A GB1418850 A GB 1418850A GB 650474 A GB650474 A GB 650474A GB 650474 A GB650474 A GB 650474A GB 1418850 A GB1418850 A GB 1418850A
Authority
GB
United Kingdom
Prior art keywords
display devices
time display
optical time
optical
devices
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
GB650474A
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.)
Tamura Electric Works Ltd
Original Assignee
Tamura Electric Works Ltd
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 Tamura Electric Works Ltd filed Critical Tamura Electric Works Ltd
Priority to GB650474A priority Critical patent/GB1418850A/en
Publication of GB1418850A publication Critical patent/GB1418850A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/04—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB650474A 1974-02-13 1974-02-13 Optical time display devices Expired GB1418850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB650474A GB1418850A (en) 1974-02-13 1974-02-13 Optical time display devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB650474A GB1418850A (en) 1974-02-13 1974-02-13 Optical time display devices

Publications (1)

Publication Number Publication Date
GB1418850A true GB1418850A (en) 1975-12-24

Family

ID=9815721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB650474A Expired GB1418850A (en) 1974-02-13 1974-02-13 Optical time display devices

Country Status (1)

Country Link
GB (1) GB1418850A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169112A (en) * 1984-12-19 1986-07-02 Aevar Jonasar A visual training aid for athletes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169112A (en) * 1984-12-19 1986-07-02 Aevar Jonasar A visual training aid for athletes

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee