Emission controller for electronic flash associated with an electronic camera

Claim 2

An emission controller for an electronic flash associated with an electronic camera which includes both a solid pickup element having individual photoelectric transducer elements which define picture elements of the solid state pickup element, and means for normally repeatedly scanning the transducer element in a predetermined timing sequence; said emission controller comprising: (a) means for disabling the scanning means and initializing the individual photoelectric transducer elements by placing each of said transducer elements at a common charge level, prior to the emission of flash light from said electronic flash; (b) means for resetting the transducer elements in substantially simultaneous synchronized relationship with the emission of flash light from the electronic flash so as to permit the charge level of each individual transducer element to change as function of the amount of light from the electronic flash impinging on that transducer element; and (c) means for enabling the scanning means so as to initiate a sequential scanning of the transducer element at a given time delay after the emission of flash light from the electronic flash.

Claim 3

An emission controller according to claim 1 in which the initializing means includes a flash photography mode switch, the solid state pickup element being associated with a scan circuit having control switching elements connected on its output side for scanning the transducer elements of the pickup element, all of the control switching elements being turned on in synchronism with the operation of the mode switch.

Claim 4

An emission controller according to claim 2 in which the mode switch operates to charge a capacitor in synchronism therewith, which capacitor is used to trigger the emission of flashlight from an electronic flash.

Claim 5

An emission controller according to claim 2 in which the reset means includes an emission initiate switch, the solid state pickup element being associated with a scan circuit having control switching elements connected to its output side for scanning the transducer elements of the pickup element, all of the control switching elements being turned on in synchronism with the operation of the mode switch and being turned off in synchronism with the operation of the emission initiate switch.

Claim 6

An emission controller according to claim 4 in which the emission initiate switch is mechanically interlocked with a shutter release button of a camera, the operation of the mode switch causing a capacitor to be charged which is used to trigger the emission of flashlight from the electronic flash, the operation of the emission initiate switch causing the capacitor to discharge, thereby initiating the emission of flashlight from the electronic flash.

Claim 7

An emission controller according to claim 1 in which the means for initiating a sequential scanning includes a delay circuit for delaying by a given time interval a signal produced by an emission initiate switch which is contained within the reset means for initiating the emission of flashlight from an electronic flash, and a drive pulse generator reset by a flash photography mode switch contained within the initializing means and enabled by an output from the delay circuit for driving a scan circuit associated with the solid state pickup element.

Claim 8

An emission controller for an electronic flash associated with an electronic camera which includes a solid state pickup element; said emission controller comprising: means for initializing individual photoelectric transducer elements which define picture elements of the solid state state pickup element, prior to the emission of flash light from an electronic flash; said initializing means including a flash photography mode switch; said solid state pick up element being associated with a scan circuit having control switching elements connected on its output side for scanning said transducer elements of said pickup element, all of said control switching elements being turned on in synchronism with the operation of said mode switch; means for resetting said transducer elements in synchronized relationship with the emission of flash light from said electronic flash; and means for initiating a sequential scanning of said transducer elements at a given time delay after the initiation of emission of flashlight from said electronic flash.

Claim 9

An emission controller for an electronic flash associated with an electronic camera which includes a solid state pickup element; said emission controller comprising: means for initializing individual photoelectric transducer elements which define picture elements of the solid state state pickup element, prior to the emission of flash light from an electronic flash; said initializing means including a flash photography mode switch; said solid state pick up element being associated with a scan circuit having control switching elements connected on its output side for scanning said transducer elements of said pickup element, all of said control switching elements being turned on in synchronism with the operation of said mode switch; means for resetting said transducer elements in synchronized relationship with the emission of flash light from said electronic flash; and means for initiating a sequential scanning of said transducer elements at a given time delay after the initiation of emission of flashlight from said electronic flash.

Claim 10

An emission controller according to claim 7 in which the mode switch operates to charge a capacitor in synchronism therewith, which capacitor is used to trigger the emission of flashlight from an electronic flash.

Claim 11

An emission controller according to claim 7 in which the reset means includes an emission initiate switch, the solid state pickup element being associated with a scan circuit having control switching elements connected to its output side for scanning the transducer elements of the pickup element, all of the control switching elements being turned on in synchronism with the operation of the mode switch and being turned off in synchronism with the operation of the emission initiate switch.

Claim 12

An emission controller according to claim 7 in which the emission initiate switch is mechanically interlocked with a shutter release button of a camera, the operation of the mode switch causing a capacitor to be charged which is used to trigger the emission of flashlight from the electronic flash, the operation of the emission initiate switch causing the capacitor to discharge, thereby initiating the emission of flashlight from the electronic flash.

Claim 13

An emission controller for an electronic flash associated with an electronic camera which includes a solid state pickup element, said emission controller comprising: means for initializing individual photoelectric transducer elements which define picture elements of the solid state pickup element, prior to the emission of flashlight from an electronic flash; means for resetting the transducer elements in synchronized relationship with the emission of flashlight from said electronic flash; means for initiating a sequential scanning of said transducer elements at a given time delay after initiation of emission of flashlight from said electronic flash, said means for initiating a sequential scanning including a delay circuit for delaying by a given time interval a signal produced by an emission initiate switch which is contained within said resetting means for initiating the emission of flashlight from an electronic flash, and a drive pulse generator reset by a flash photography mode switch contained within the initializing means and enabled by an output from said delay circuit for driving a scan circuit associated with said solid state pickup element.

Claim 14

An emission controller for an electronic flash associated with an electronic camera which includes a solid state pickup element, said emission controller comprising: means for initializing individual photoelectric transducer elements which define picture elements of the solid state pickup element, prior to the emission of flashlight from an electronic flash; means for resetting the transducer elements in synchronized relationship with the emission of flashlight from said electronic flash; means for initiating a sequential scanning of said transducer elements at a given time delay after initiation of emission of flashlight from said electronic flash, said means for initiating a sequential scanning including a delay circuit for delaying by a given time interval a signal produced by an emission initiate switch which is contained within said resetting means for initiating the emission of flashlight from an electronic flash, and a drive pulse generator reset by a flash photography mode switch contained within the initializing means and enabled by an output from said delay circuit for driving a scan circuit associated with said solid state pickup element.

Claim 15

An emission controller as in claim 1, wherein said disabling of the scanning means and initialization of the transducer elements are substantially simultaneous.

Claim 16

An emission controller as in claim 1, wherein said given time delay for enabling of the scanning means after the emission of flash light is selected to enable the scanning after said flash light emission has been substantially completed.

Claim 17

An emission controller as in claim 1, wherein said means for disabling the scanning means includes flash photography mode selection means which disables said scanning means and substantially simultaneously prepares such electronic flash for flash light emission.

Claim 18

An emission controller as in claim 1, wherein said means for disabling said scanning means includes a flash photography mode selection switch, and said means disables said scanning means in substantially simultaneous synchronization with the operation of said mode selection switch.

Claim 19

An emission controller as in claim 1, wherein said mode selection switch substantially simultaneously disables said scanning means and prepares such electronic flash for flash light emission.