JPH0628821U - Autofocus camera with camera attitude detection function - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide an autofocus camera with a camera attitude detection function, which can take a clear picture of a vertically oriented object when the camera attitude detection sensor outputs an attitude signal. And [Structure] An autofocus camera with a camera posture detection function measures the distance to a subject and outputs a camera output signal by detecting a distance measuring means that outputs center range data and a plurality of peripheral range data. Camera attitude detection means for outputting
And a control means for selecting a distance measuring area of the distance measuring means according to the camera attitude signal and performing distance measurement detection.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an autofocus camera with a camera attitude detection function, and in particular, with a camera attitude detection function equipped with a distance measuring means for measuring the distance to a subject and outputting center distance measurement data and peripheral distance measurement data. Regarding auto focus.

[0002]

[Prior art]

 Generally, when the attitude of the camera with respect to the subject is changed from horizontal to vertical, the image in the image frame naturally has a vertically long vertical attitude, and the distance measuring means outputs the same central distance measurement data as in the horizontal attitude. However, one of the peripheral distance measurement data, for example, the right peripheral distance measurement data is at the upper portion of the image frame, and the other peripheral distance measurement data is at the lower portion of the image frame. For this reason, the central measurement point measures the distance of the main subject, but the upper measurement point measures the background above the main subject, and the lower measurement point measures the ground in front of the main subject. The distance of is averaged, or the distance is set to the ground in front. Therefore, a photograph taken in a vertical position has a drawback that the main subject becomes unclear.

[0003]

[Problems to be solved by the device]

 It is an object of the present invention to provide an autofocus camera with a camera attitude detection function that can take a clear picture of a vertical object when a camera attitude detection sensor outputs an attitude signal.

[0004]

[Means for Solving the Problems]

 The autofocus camera with camera posture detection function according to the present invention measures the distance to the subject and outputs the camera posture by detecting the camera posture and the distance measuring means that outputs the center distance measurement data and a plurality of peripheral distance measurement data. It is provided with a camera attitude detection means for outputting a signal and a control means for detecting a distance by selecting a distance measurement area of the distance measurement means according to the camera attitude signal.

[0005]

【Example】

 An embodiment of an autofocus camera with a camera attitude detecting function according to the present invention will be described with reference to FIGS.

As shown in FIG. 1, an autofocus camera with a camera posture detecting function according to the present invention includes a camera posture sensor 1, a distance measuring integrated circuit 6 (hereinafter referred to as AFIC), a posture signal receiving circuit 3, and a posture signal. It is composed of a microprocessor 20 (hereinafter referred to as a CPU) to which a receiving circuit 3 and a release lead 10 are connected, and a lens barrel 12 which is operated via a shutter / lens driving IC 11 under the control of the CPU 20. Diode IR₁, IR₂, IR₃, IR_Four, IR_FiveThe multi-point light projecting element 7, the position detecting element 8 (hereinafter referred to as PSD), and the multi-point light projecting element 7 and the AF interface 9 to which the PSD 8 is connected. Light emitting diode IR₁, IR₂, IR₃, IR_Four, IR _Five The light emitted from the subject to the subject through the light projecting lens 6a is reflected by the subject and is applied to the PSD 8 from the light receiving lens 6b. The pendulum 2 of the camera attitude sensor 1 is supported by the pendulum center 2 b, and the pendulum contact 2 a provided at the apex of the pendulum 2 has a lateral attitude signal terminal T.₁ When the contact 1b connected to is closed, the lateral attitude signal terminal f₁Is sent. Also, the vertical attitude signal terminal T₂And T₃When the contact point 1c or 1a connected to is closed, the vertical posture signal f₂Or f₃Is sent.

[0007] When photographing in the configuration of the camera posture detection with automatic focus camera, the horizontal attitude signal f ₁ in sequence, the presence or absence of a vertical attitude signal f ₂ and f ₃ are detected, the vertical orientation signal f ₂及beauty f _{If 3} is not detected, the light emitting diodes IR ₁ , IR ₂ and IR ₃ are emitted by, and distance measurement and automatic focusing are performed in the sequence of. No lateral attitude signal f1 in sequence again, the vertical orientation signal f ₂ or f ₃ emits a light emitting diode IR _1, IR _4, IR ₅ de to be detected.

The camera attitude sensor 1 including the pendulum 2 in the above embodiment may be composed of the water silver contact attitude sensor 4 shown in FIG. The mercury contact attitude sensor 4 sends out a lateral attitude signal f ₁ when the contact 4b to which the lateral attitude signal terminal T ₁ is connected is immersed in mercury. Further, when the vertical orientation signal terminal T ₂ and contacts 4c or 4a T ₃ is connected is immersed in mercury, and sends a vertical attitude signal f ₂ or f _3.

It should be noted that such a camera attitude sensor can be configured by a member such as a photocoupler and a magnet. Further, although the above embodiment has been described with respect to the active type which performs distance measurement by light projection and light reception, the same concept can be applied to a passive type distance measurement device. Further, it is possible to apply the principle that only the pendulum contact 2a provided at the apex of the camera attitude sensor 1 is provided and the lateral attitude signal F ₁ is turned off if it is separated from the pendulum contact 1b. Further, the principle that the lateral attitude signal f ₁ is turned off when the contact 2a is separated from the contact 1b may be applied. Also provided only contact 1c and 1a, horizontal attitude signal f ₁ may be turned off when the vertical orientation signal f ₂ or f ₃ is output.

[0010]

[Effect of device]

 As is clear from the above embodiments, according to the autofocus camera with a camera attitude detection function of the present invention, presence or absence of a camera attitude signal is provided by providing a camera attitude detection member that detects the camera attitude and outputs the camera attitude. The light emitting element of the distance measuring means is selected according to the above, and the distance is set, so that there is an effect that a clear picture can be taken of the subject regardless of the attitude difference of the camera.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an autofocus camera with a camera posture detection function of the present invention.

FIG. 2 is a flowchart of an autofocus camera with a camera posture detection function of the present invention.

FIG. 3 is a configuration diagram of a mercury contact posture sensor used in the autofocus camera with a camera posture detection function of the present invention.

FIG. 4 is a layout view of a light emitting element and a light receiving element of an autofocus camera with a camera posture detecting function of the present invention.

[Explanation of symbols]

1 camera attitude sensor (camera attitude detection means) T ₁ lateral attitude signal terminal T ₂ , T ₃ vertical attitude signal terminal 2 pendulum 2a pendulum contact 2b pendulum center 2c horn 3 attitude signal receiving circuit 4 mercury contact attitude sensor 6 AFIC 6a light projection Lens 6b Light receiving lens 7 Light emitting element IR ₁ Central light emitting diode IR ₂ , IR ₃ , IR ₄ , IR ₅ Peripheral light emitting diode 8 PSD 9 AF interface 10 Release lead 11 Shutter lens drive IC 12 Lens barrel 20 CPC

Claims (1)

[Scope of utility model registration request] 1. A distance measuring means for measuring a distance to a subject and outputting center distance measuring data and a plurality of peripheral distance measuring data, and camera attitude detection for detecting a camera attitude and outputting a camera attitude signal. An autofocus camera with a camera attitude detection function, comprising: a means for detecting a distance by selecting a distance measuring area of the distance measuring means according to the camera attitude signal.