A pop-up flash unit (2) for a camera includes a mounting seat (30)
disposed in the camera body, a flash member (20) rotatably mounted on the
mounting seat between a projected position for operating and a retracted
position for storage, a driving device (40) substantially disposed in the
camera body for permitting movement of the flash member from the
retracted position to the projected position, a pair of first torsion
members (34, 35) for providing a resilient restoring force to the flash
member to thereby permit movement of the flash member from the retracted
position to the projected position, and a second torsion member (45) for
reliably retaining the flash member in the retracted position. The flash
member is retained in its retracted position via a latching engagement
with the driving device.