Shutter device and image-capturing apparatus

Abstract

A shutter device includes: a substrate having an opening; a first light-shielding member that moves from a first position outside the opening of the substrate to a second position outside the opening to shield the opening, the second position being different from the first position; a second light-shielding member that partly shields the opening while moving from the first position to the second position; a first moving member that has a protrusion moving along a hole provided in the substrate to move the first light-shielding member; a second moving member that is coupled to the second light-shielding member and moves together with the second light-shielding member; and a third moving member, located outside a movement range of the protrusion during the second light-shielding member being located in the first position, that is coupled to the second light-shielding member and moves together with the second light-shielding member.

1 . A shutter device, comprising:
 a substrate having an opening;   a first shielding member that moves from a first area outside the opening of the substrate to a second area outside the opening to shield at least part of the opening, the second area being different from the first area;   a second shielding member that partly shields the opening while moving from the first area to the second area;   a first moving member that has a protrusion moving along a hole provided in the substrate to move the first shielding member; and   a second moving member, located outside a movement range of the protrusion while the second shielding member is located in the first area, that is coupled to the second shielding member and moves together with the second shielding member.   
     
     
         2 . The shutter device according to  claim 1 , further comprising:
 a third moving member that is coupled to the second shielding member and is located outside a movement range of the protrusion while the second shielding member is located in the first area.   
     
     
         3 . The shutter device according to  claim 1 , wherein:
 the second moving member is curved so as to locate between a movement range of the first moving member and the opening while the second shielding member is located in the first area.   
     
     
         4 . The shutter device according to  claim 2 , wherein:
 the second moving member and the third moving member constitute a parallel link mechanism for moving the second shielding member; and   the third moving member at least partly overlaps the second moving member.   
     
     
         5 . The shutter device according to  claim 4 , wherein:
 each of the second moving member and the third moving member is coupled to the second shielding member on one of surfaces of the second shielding member; and   one of the second moving member and the third moving member has a step in an area where the members overlap each other.   
     
     
         6 . The shutter device according to  claim 4 , wherein:
 the second moving member and the third moving member are coupled to the second shielding member on opposite surfaces of the second shielding member.   
     
     
         7 . An image-capturing apparatus, comprising:
 the shutter device according to  claim 1 ; and   an image sensor that receives subject light through the shutter device.