| 摘要 |
A lens-fitted photo film unit is pre-loaded with photo film (23), and is a flash built-in type. A booster circuit (46, 47) boosts power source voltage to obtain high voltage. A main capacitor (40) stores charge at the high voltage. A flash discharge tube (41) is connected with the main capacitor, and emits flash light by discharge at the high voltage. A trigger circuit (51, 53) triggers the discharge of the flash discharge tube in response to an exposing operation. A main circuit board (17a) has the booster circuit and the trigger circuit mounted thereon. A subsidiary circuit board (17b) is connected with the main circuit board, and has a flash quenching circuit (49) mounted thereon. The flash quenching circuit operates in an auxiliary manner, and automatically adjusts the amount of the flash light.
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