Camera having a built-in electronic flash device and a detachable flash device selectively operated to eliminate red-eye phenomena

Claim 2

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting whether or not a red-eye phenomenon tends to occur in a current photographing condition; second means for detecting whether or not the detachable electronic flash device is attached to the camera; and means for prohibiting the built-in electronic flash device from emitting light when it is detected that said detachable electronic flash device is attached to the camera and the red-eye phenomenon tends to occur as well.

Claim 3

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting whether or not an object distance is within a distance range shorter than a predetermined distance and within which a red-eye phenomenon tends not to occur; second means for detecting whether or not the detachable electronic flash device is attached to the camera; and means for prohibiting the detachable electronic flash device from emitting light when it is detected that said detachable electronic flash device is attached to the camera and the object distance is within said distance range.

Claim 4

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting whether or not an object distance is within a distance range shorter than a predetermined distance and within which a red-eye phenomenon tends not to occur; second means for detecting whether or not the detachable electronic flash device is attached to the camera; and means for prohibiting the detachable electronic flash device from emitting light when it is detected that said detachable electronic flash device is attached to the camera and the object distance is within said distance range.

Claim 5

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting a focal length of a taking lens of the camera as a first kind of data, an object distance as a second kind of data and an object brightness as a third kind of data, and detecting whether or not an object is under a backlight condition as a fourth kind of data; second means for detecting whether or not the detachable electronic flash device is attached to the camera; means for determining which electronic flash device should be enabled to emit light by distinguishing whether or not a red-eye phenomenon tends to occur based on a result of the detection by said first means; and means for controlling the light emission of said built-in electronic flash device and said detachable electronic flash device based on the determination by said determining means when said detachable electronic flash device is attached to the camera.

Claim 6

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting a focal length of a taking lens of the camera as a first kind of data, an object distance as a second kind of data and an object brightness as a third kind of data, and detecting whether or not an object is under a backlight condition as a fourth kind of data; second means for detecting whether or not the detachable electronic flash device is attached to the camera; means for determining which electronic flash device should be enabled to emit light by distinguishing whether or not a red-eye phenomenon tends to occur based on a result of the detection by said first means; and means for controlling the light emission of said built-in electronic flash device and said detachable electronic flash device based on the determination by said determining means when said detachable electronic flash device is attached to the camera.

Claim 7

A camera as claimed in claim 3 further comprising: storing means for storing an information including at least one of said first to fourth kinds of data which indicates that the red-eye phenomenon tends to occur; discriminating means for discriminating whether or not the red-eye phenomenon tends to occur by comparing said information and said data detected by said first means; and means for warning when said discriminating means discriminates that the red-eye phenomenon tends to occur.

Claim 8

A camera as claimed in claim 3, wherein said determining means determines that both of said electronic flash devices should be enabled to emit light when said first means detects that the object is under a back-light condition.

Claim 9

A camera as claimed in claim 4, wherein said determining means determines that both of said electronic flash devices should be enabled to emit light when said first means detects that the object is under a back-light condition.

Claim 10

A camera as claimed in claim 3, wherein said determining means determines that only the built-in electronic flash device should be enabled to emit light when said first means detects that the object distance is shorter than a predetermined distance.

Claim 11

A camera as claimed in claim 4, wherein said determining means determines that only built-in electronic flash device should be enabled to emit light when said first means detects that the object distance is shorter than a predetermined distance.

Claim 12

A camera as claimed in claim 3, wherein said determining means determines that both of said electronic flash devices should be enabled to emit light when said first means detects that the object brightness is lower than a predetermined level and said determining means determines that the red-eye phenomenon does not tend to occur.

Claim 13

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting whether or not an object to be photographed is in a condition that a red-eye phenomenon tends to occur; second means for detecting whether or not the detachable electronic flash device is attached to the camera; means for determining which electronic flash device should be enabled to emit light based on a result of the detection by said first means; and means for controlling the light emission of said built-in electronic flash device and said detachable electronic flash device based on the determination by said determining means when said detachable electronic flash device is attached to the camera.

Claim 14

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting whether or not an object to be photographed is in a condition that a red-eye phenomenon tends to occur; second means for detecting whether or not the detachable electronic flash device is attached to the camera; means for determining which electronic flash device should be enabled to emit light based on a result of the detection by said first means; and means for controlling the light emission of said built-in electronic flash device and said detachable electronic flash device based on the determination by said determining means when said detachable electronic flash device is attached to the camera.

Claim 15

A camera as claimed in claim 10, wherein said condition includes an object distance.

Claim 16

A camera as claimed in claim 10, wherein said first means detects whether or not the object is under a back-light condition.

Claim 17

A camera comprising: a built-in electronic flash device having a light emitting portion for emitting light contributing to an exposure; a flash attaching portion to which a detachable electronic flash device can be attached; menas for indicating to follow a procedure for preventing a red-eye phenomenon; means for detecting whether or not the detachable electronic flash device is attached to the camera; and means for prohibiting the light emitting portion of the built-in electronic flash device from emitting light when said detecting means detects that said detachable electronic flash device is attached to the camera and said indicating means indicates to follow a procedure for preventing red-eye phenomenon.

Claim 18

A camera comprising: a built-in electronic flash device having a light emitting portion for emitting light contributing to an exposure; a flash attaching portion to which a detachable electronic flash device can be attached; menas for indicating to follow a procedure for preventing a red-eye phenomenon; means for detecting whether or not the detachable electronic flash device is attached to the camera; and means for prohibiting the light emitting portion of the built-in electronic flash device from emitting light when said detecting means detects that said detachable electronic flash device is attached to the camera and said indicating means indicates to follow a procedure for preventing red-eye phenomenon.

Claim 19

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting whether or not an object distance is within a distance range shorter than a predetermined distance and within which parallax between luminous distributing angle of the detachable electronic flash device and picture angle occurs; second means for detecting whether or not the detachable electronic flash device is attached to the camera; and means for prohibiting the detachable electronic flash device from emitting light when it is detected that said detachable electronic flash device is attached to the camera and the object is within the distance range.

Claim 20

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting whether or not an object distance is within a distance range shorter than a predetermined distance and within which parallax between luminous distributing angle of the detachable electronic flash device and picture angle occurs; second means for detecting whether or not the detachable electronic flash device is attached to the camera; and means for prohibiting the detachable electronic flash device from emitting light when it is detected that said detachable electronic flash device is attached to the camera and the object is within the distance range.

Claim 21

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachabe electronic flash device can be attached; first means for detecting a focal length of a taking lens of the camera as a first kind of data, an object distance as a second kind of data and an object brightness as a third kind of data, and detecting whether or not an object is under a backlight condition as a fourth kind of data; second means for detecting whether or not the detachable electronic flash device is attached to the camera; means for determining which electronic flash device should be enabled to emit light based on a result of the detection by said first means; and means for controlling the light emission of said built-in electronic flash device and said detachable electronic flash device to select either of mode in which both electronic flash devices are emitted or either of electronic flash device is emitted based on the determination by said determining means when said detachable electronic flash device is attached to the camera.

Claim 22

A camera comprising: a built-in electronic flash device; a flash attaching portion to which a detachabe electronic flash device can be attached; first means for detecting a focal length of a taking lens of the camera as a first kind of data, an object distance as a second kind of data and an object brightness as a third kind of data, and detecting whether or not an object is under a backlight condition as a fourth kind of data; second means for detecting whether or not the detachable electronic flash device is attached to the camera; means for determining which electronic flash device should be enabled to emit light based on a result of the detection by said first means; and means for controlling the light emission of said built-in electronic flash device and said detachable electronic flash device to select either of mode in which both electronic flash devices are emitted or either of electronic flash device is emitted based on the determination by said determining means when said detachable electronic flash device is attached to the camera.

Claim 23

A camera comprising a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting a condition of an object to be photographed; second means for detecting whether or not the detachable electronic flash device is attached to the camera; means for determining either of mode in which both electronic flash devices are emitted or either of electronic flash device is emitted should be selected based on a result of the detection by said first means; and means for controlling the light emission of said built-in electronic flash device and said detachable electronic flash device based on the determination by said determining means when said detachable electronic flash device is attached to the camera.

Claim 24

A camera comprising a built-in electronic flash device; a flash attaching portion to which a detachable electronic flash device can be attached; first means for detecting a condition of an object to be photographed; second means for detecting whether or not the detachable electronic flash device is attached to the camera; means for determining either of mode in which both electronic flash devices are emitted or either of electronic flash device is emitted should be selected based on a result of the detection by said first means; and means for controlling the light emission of said built-in electronic flash device and said detachable electronic flash device based on the determination by said determining means when said detachable electronic flash device is attached to the camera.