Apparatus for detachably mounting a lens filter onto a camera

An apparatus for detachably mounting to a filter to a camera, said apparatus comprising:

• a fixing means for fixing the apparatus to an accessory mounting groove formed at a bottom portion of the camera;
• an adjusting means, slidably connected with said fixing means and provided with a hinge at one end portion of said adjusting means, for adjusting a horizontal position of a filter according to a distance variation between a camera lens and the camera;
• and
• a filter holder assembly for receiving said filter, said filter holder assembly being rotatable connected to said hinge;
• said fixing means comprising (i) a guiding member having a first guiding protrusion which is protrusively formed at a bottom surface of an upper portion of said guiding member, both ends of said guiding member being opened;
• (ii) a fixing plate having a longitudinal hole formed in said fixing plate and along a length direction of said fixing plate, a first groove formed at an upper surface around said longitudinal hole, a second groove formed at one side portion of said fixing plate and a through hole formed at a center portion of said second groove for receiving said first guiding protrusion, said fixing plate being rotatably connected to said guiding member;
• and (iii) a fixing screw, rotatably and slidably passing through the longitudinal hole, for combining said fixing plate with the accessory mounting groove of said camera.

An apparatus for mounting a filter to a camera, said apparatus comprising:

• a fixing means for fixing the apparatus to an accessory mounting groove formed at a bottom portion of the camera;
• an adjusting means, slidably connected with said fixing means and provided with a hinge at one end portion of said adjusting means, for adjusting a horizontal position of a filter according to a distance variation between a camera lens and the camera;
• and
• a filter holder assembly for receiving said filter, said filter holder assembly being rotatable connected to said hinge
• wherein said fixing means includes:
• a fixing plate having a first longitudinal hole formed at an inner portion of said fixing plate and along a length direction of said fixing plate, a first groove formed at a lower surface around said first longitudinal hole, a second groove formed at one end portion of said fixing plate and a through hole formed at a center portion of said second groove,
• a first fixing screw which passes through said through hole and is rotatably connected to said fixing plate, for combining said fixing plate with said accessory mounting groove of said camera, and
• a guiding member having a second fixing screw which is rotatably and slidably inserted into the first longitudinal hole and a fixing nut which combines with said second fixing screw and has a third groove formed at an upper surface of said fixing nut, said fixing nut being positioned at an upper surface of said fixing plate.

An apparatus for detachably mounting a filter to a camera, said apparatus comprising:

• a fixing means for fixing the apparatus to an accessory mounting groove formed at a bottom portion of the camera;
• an adjusting means, slidably connected with said fixing means and provided with a hinge at one end portion of said adjusting means, for adjusting a horizontal position of a filter according to a distance variation between a camera lens and the camera;
• and
• a filter holder assembly for receiving said filter, said filter holder assembly being rotatable connected to said hinge,
• wherein said filter holder assembly includes:
• a rotating member which is rotatably connected to said hinge and includes a guiding groove, a second guiding protrusion formed at an inner portion of said guiding groove, a second rack formed at an inner wall of said guiding groove and a cover combined with said guiding groove,
• a guiding bracket including a guiding longitudinal hole for receiving said second guiding protrusion and a second latch which is formed at an outer portion of said guiding bracket and is slidably combined with said second rack, and
• a filter holder for rotatably receiving said filter, said filter holder having a first filter fixing bracket which is connected to an upper end portion of said guiding bracket and includes a fixing protrusion for fixing said filter, and a second filter fixing bracket which is connected with said first filter fixing bracket at a bottom surface thereof and is positioned in front of said camera lens, a filter groove being formed between said first filter fixing bracket and said second filter bracket so as to receive said filter.

An apparatus for detachably mounting a filter to a camera having an accessory mounting groove formed at its bottom surface and an objective lens, said apparatus comprising:

• a fixing means for fixing the apparatus to the accessory mounting groove;
• an adjusting means having a proximal end and a distal end, the distal end being slidably connected with said fixing means and provided with a hinge at the distal end portion of said adjusting part, for adjusting a horizontal position of a filter so that distance between the filter and the objective lens is substantially constant;
• and
• a filter holder assembly for receiving said filter, said filter holder assembly being rotatably connected to said hinge, wherein said fixing means has:
• a guiding member having a first guiding protrusion which is protrusively formed at a bottom surface of an upper portion of said guiding member, two opposite ends of said guiding member being opened,
• a fixing plate which is rotatable and slidably connected to said guiding member and has a longitudinal hole formed at an inner portion of said fixing plate along a length direction of said fixing plate for receiving said first guiding protrusion, a first groove formed at a bottom surface around said longitudinal hole, a second groove formed at one end portion of said fixing plate and a through hole formed at a center of said second groove, and
• a fixing screw which passes through said through hole and is rotatable connected to said fixing plate, for combining said fixing plate with said accessory mounting groove of said camera.