Abstract: A first lens, a first spacer ring, a second lens, a second spacer ring, and a third lens are disposed along an optical axis and from the subject side in the stated order within a holder main body. A flare stopper in the shape of a ring (a washer) is integrally formed with an inner periphery of the second spacer ring. The flare stopper is formed to protrude toward the third lens and positions a circular opening thereof close to a concave surface of the third lens, so as to cover a peripheral area of the concave surface. Accordingly, both the light toward a peripheral surface of the third lens and toward a peripheral surface of an exposure opening are blocked by the flare stopper.

Abstract: A first lens, a first spacer ring, a second lens, a second spacer ring, and a third lens are disposed along an optical axis and from the subject side in the stated order within a holder main body. A flare stopper in the shape of a ring (a washer) is integrally formed with an inner periphery of the second spacer ring. The flare stopper is formed to protrude toward the third lens and positions a circular opening thereof close to a concave surface of the third lens, so as to cover a peripheral area of the concave surface. Accordingly, both the light toward a peripheral surface of the third lens and toward a peripheral surface of an exposure opening are blocked by the flare stopper.

Abstract: A lens-fitted photographic film unit is provided with a cassette chamber for containing a cassette and a film chamber for containing an unexposed photo film drawn from the cassette. The front portion of the cassette chamber is formed of a curved wall which cross section is in a U-shape. A taking lens has a first lens element, a second lens element, and a third lens element that are disposed from the subject side in the stated order. A shutter blade is provided with a light shield portion for opening/closing a photography light path. The light shield position is disposed between the first lens element and the second lens element, such that a part of the light shield portion enters a space formed in front of the cassette chamber when the shutter blade moves from a close position to an open position.

Abstract: In a waterproof lens-fitted photo film unit, a lens-fitted photo film unit is contained in a waterproof case. A stop changing button is provided in the waterproof case. When the stop changing button is pressed, the stop changing mechanism in the lens-fitted photo film unit is actuated to become a larger-stop state. The pressing operation to the stop changing button is released to become a smaller-stop state. A shutter-speed changing mechanism switches the shutter speed between high and low. In the preferred embodiment of the present invention, a pressure driving mechanism for actuating the stop changing mechanism when water pressure is applied to a cover body is provided in the waterproof case.