Abstract: An aperture device includes: a board including an opening; a blade opening and closing the opening; and first and second receiving plates sandwiching the blade; wherein the first receiving plate includes a pressing portion partially pressing the blade toward the second plate.

Abstract: A focal plane shutter includes: first, second, and third boards respectively including openings through which light enters an image pickup element from an object side, and arranged in this order from the object side toward the image pickup element side; a blade arranged between the first and second boards and capable of opening and closing the openings; and a holding member arranged between the second and third boards, not coupled to the blade, and holding the second board from the image pickup element side.

Abstract: An aperture device includes: a board including an opening; a blade opening and closing the opening; and first and second receiving plates sandwiching the blade; wherein the first receiving plate includes a pressing portion partially pressing the blade toward the second plate.

Abstract: A focal plane shutter includes: first, second, and third boards respectively including openings through which light enters an image pickup element from an object side, and arranged in this order from the object side toward the image pickup element side; a blade arranged between the first and second boards and capable of opening and closing the openings; and a holding member arranged between the second and third boards, not coupled to the blade, and holding the second board from the image pickup element side.

Abstract: A shutter for an optical apparatus has multiple sectors and an operation member. Each of the multiple sectors has a cam opening for engagement and is pivotally provided to open and close a shutter opening, the operation member moves each of said multiple sectors in engagement with the cam opening, and the cam opening of at least one sector that is one of the multiple sectors is formed to change a moving direction of said at least one sector, when the operation member moves said at least one sector to a position to close the shutter opening.

Abstract: There is provided a shutter apparatus including a substrate having a shutter opening and at lease two sectors that are supported by spindles swingably and that open and close the shutter opening, and a spindle of one sector of the at lease two sectors is located in a swinging range of another sector of the at lease two sectors, and is a pin of a rod-shaped member formed on the substrate to be lower in an overall height than a height in which the another sector swings.

Abstract: A shutter for an optical apparatus has multiple sectors and an operation member. Each of the multiple sectors has a cam opening for engagement and is pivotally provided to open and close a shutter opening, the operation member moves each of said multiple sectors in engagement with the cam opening, and the cam opening of at least one sector that is one of the multiple sectors is formed to change a moving direction of said at least one sector, when the operation member moves said at least one sector to a position to close the shutter opening.

Abstract: A shutter for an optical apparatus has multiple sectors and an operation member. Each of the multiple sectors has a cam opening for engagement and is pivotally provided to open and close a shutter opening, the operation member moves each of said multiple sectors in engagement with the cam opening, and the cam opening of at least one sector that is one of the multiple sectors is formed to change a moving direction of said at least one sector, when the operation member moves said at least one sector to a position to close the shutter opening.

Abstract: There is provided a shutter apparatus including a substrate having a shutter opening and at lease two sectors that are supported by spindles swingably and that open and close the shutter opening, and a spindle of one sector of the at lease two sectors is located in a swinging range of another sector of the at lease two sectors, and is a pin of a rod-shaped member formed on the substrate to be lower in an overall height than a height in which the another sector swings.

Abstract: A shutter for an optical apparatus has multiple sectors and an operation member. Each of the multiple sectors has a cam opening for engagement and is pivotally provided to open and close a shutter opening, the operation member moves each of said multiple sectors in engagement with the cam opening, and the cam opening of at least one sector that is one of the multiple sectors is formed to change a moving direction of said at least one sector, when the operation member moves said at least one sector to a position to close the shutter opening.

Abstract: A cancel mechanism of a turn indicator includes a projection adapted to rotate along an outer circumference of a steering wheel shaft. A bracket is positioned around at least portions of the outer circumference of the shaft. The bracket is rotatable in a generally circumferential direction around the shaft between an inactive position and an active position. A ratchet, having a first and second end, is positioned with its first and second ends in slidable engagement with associated first and second ends of the bracket. The ratchet also includes a projection retaining portion for retaining the projection when the shaft is turned in a canceling direction thereby returning the bracket to the inactive position. A biasing mechanism biases the ratchet toward the bracket.

Abstract: A tilt and telescopic switch 10 includes a main body 19 received and accommodated in the space defined by a first hemispherical recess 38 of an upper casing member 12 and a second hemispherical recess 60 of a lower casing member 14. The main body 19 accommodated in the space continuously receives the pressing force of a spring 44 and allows a first hemispherical member 28 of the main body 19 to come into contact with the first hemispherical recess 38 along the substantially whole surface thereof. The first hemispherical member 28 of the main body 19 is thus guided by the hemispherical inner surface of the first hemispherical recess 38, so that the main body 19 rocks from its neutral position in the direction shown by the double-headed arrow X or in the direction shown by the double-headed arrow Y.