Multi-motor camera for normal and trimming photography having variable focal length photographing lens and finder and variable illuminating angle flash device

Patent 5848302 Issued on December 8, 1998. Estimated Expiration Date:

August 11, 2017. 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.

Abstract Claims Description Full Text

Patent References

Wide-angle/telephotography convertible camera with electronic flash
Patent #: 4609269
Issued on: 09/02/1986
Inventor: Kamata

Camera capable of providing a pseudo print format Patent #: 5119122
Issued on: 06/02/1992
Inventor: Kudo, et al.

Inventor

Machida, Kiyosada

Assignee

Nikon Corporation

Application

No. 909305 filed on 08/11/1997

US Classes:

396/60, PSEUDO ZOOM396/85, Power zoom396/379Zoom

Examiners

Primary: Metjahic, Safet
Assistant: Han, J. K.

Attorney, Agent or Firm

Shapiro and Shapiro

International Class

G03B 013/10

Foreign Application Priority Data

1991-03-14 JP

Abstract

A camera having selectable normal and trimming photographing modes and a photographing zoom lens, has a control system, including a zooming motor for driving the zoom lens, operable to set a desired focal length in response to the actuation of a control element. When a desired focal length is within the normal zooming range of the zoom lens, the normal photographing mode is selected and the zoom lens is driven to the desired focal length in response to actuation of the control element. When the desired focal length is greater than the focal length at the telephoto end of the zoom lens, the trimming photographing mode is selected, and the zoom lens is driven to the telephoto end, is then driven toward the wide angle end to a predetermined focal length at which a product of the predetermined focal length and a predetermined trimming magnification is equal to the focal length at the telephoto end, and is then again driven toward the telephoto end to a further focal length at which the product of the further focal length and the predetermined trimming magnification is equal to the desired focal length.