U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Illuminated display device which continues illumination until end of operating mode

Patent 5655163 Issued on August 5, 1997. Estimated Expiration Date: Icon_subject August 15, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Liquid crystal display device for a camera
Patent #: 4142786
Issued on: 03/06/1979
Inventor: Suzuki ,   et al.

Illuminating device for a camera Patent #: 5432578
Issued on: 07/11/1995
Inventor: Suzuki

Inventors

Assignee

Application

No. 518398 filed on 08/15/1995

US Classes:

396/287Nonmechanical visual display

Examiners

Primary: Metjahic, Safet
Assistant: Nelson, Eric

Foreign Patent References

  • 62-147440 JP. 02/13/1987

International Class

G03B 017/18

Foreign Application Priority Data

1994-10-18 JP

Abstract

A camera display device includes a display unit which is selectively illuminated during camera operation. The display unit displays information to the photographer such as photometry and rangefinding information. A mode selector switch selects a camera operating mode from a plurality of operating modes and a camera instruction unit outputs an illumination instruction to an illumination light to thereby illuminate the display unit. A timer determines a time period for illumination of the display unit while a control unit continues the illumination of the display unit during a predetermined continuation time period in response to the illumination instruction from the camera instruction unit. The control unit also continues the illumination of the display unit until an end of the camera operating mode selected by the mode selector switch. The operating mode selected by the mode selector switch includes a long exposure mode which continues an exposure longer than the predetermined time of the illumination continuation unit, a bulb exposure mode which continues an exposure for a predetermined period of time beginning from the receipt of a signal from a camera release member, and a time exposure mode which continues an exposure for a predetermined period of time beginning from the receipt of a signal from the camera release member.

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