Abstract Electronic flash apparatus of the so-called computer type, having a sensor for receiving light reflected from the object being photographed, to determine the instant at which the flash should be extinguished, in order to provide just the right amount of light for the photographic exposure. The housing or casing of the flash unit is divided into two parts movable relative to each other. The main part of the housing contains the sensor. Pivotally attached to the main housing portion, for rotation about an axis at an angle to the optical axis of the sensor, is a lamp head portion containing the flash lamp and its reflector. In the normal position, the optical axis of the reflector is parallel to the optical axis of the sensor. When the lamp head is turned through 180* on its rotary axis, the optical axis of the flash reflector is at a substantial angle to the optical axis of the sensor (usually 90* or somewhat less than 90*) so that the main housing part may be held with the sensor axis correctly pointing toward the object to be photographed, while the light from the flash tube and its reflector is projected upwardly onto the ceiling, to provide indirect or ''''bounce'''' lighting for the object to be photographed.
Electronic flash apparatus of the type having a sensor receiving light reflected from an object being photographed and controlling the duration of a flash in response to the lighT reaching the sensor along a sensor axis, said apparatus comprising a first housing part containing said sensor, a second housing part containing a flash reflector having an optical axis, and means for rotatably mounting said second housing part on said first housing part for rotation relative thereto about a rotary axis forming an acute angle of less than 45* to said sensor axis, said rotary axis being defined by a hollow tubular bearing membber, said apparatus further comprising an electrical conducting cable passing through said tubular bearing member to connect electric circuit parts within said second housing part to electric circuit parts within said first housing part.
Claim 2
Dependent Claim
136 words
Electronic flash apparatus of the type having a sensor receiving light reflected from an object being photographed and controlling the duration of a flash in response to the lighT reaching the sensor along a sensor axis, said apparatus comprising a first housing part containing said sensor, a second housing part containing a flash reflector having an optical axis, and means for rotatably mounting said second housing part on said first housing part for rotation relative thereto about a rotary axis forming an acute angle of less than 45* to said sensor axis, said rotary axis being defined by a hollow tubular bearing membber, said apparatus further comprising an electrical conducting cable passing through said tubular bearing member to connect electric circuit parts within said second housing part to electric circuit parts within said first housing part.
Claim 3
Dependent Claim
30 words
Flash apparatus as defined in claim 1, further including stop means limiting turning of said second housing part relative to said first housing part to a turning range of 180*.
Claim 4
Dependent Claim
39 words
Flash apparatus as defined in claim 2, further comprising spring means tending to restore said second housing part to a normal one of its extreme positions relative to the first housing part, when it is turned to another position.
Claim 5
Dependent Claim
55 words
Flash apparatus as defined in claim 3, further comprising releasable latch means for holding said second housing part in its other extreme position turned 180* from its said normal position, said spring means serving to turn said second housing part back from its latched position to its normal position when said latch means is released.