US RE49,977 E1
Dot sighting device with large caliber
In Jung, Bucheon-si (KR); and Dong Hee Lee, Seongnam-si (KR)
Assigned to DONGIN OPTICAL CO., LTD., Bucheon-si (KR)
Appl. No. 17/222,333
Filed by DONGIN OPTICAL CO., LTD., Bucheon-si (KR)
PCT Filed Jul. 3, 2008, PCT No. PCT/KR2008/003944
§ 371(c)(1), (2), (4) Date Jan. 4, 2010,
PCT Pub. No. WO2009/008629, PCT Pub. Date Jan. 15, 2009.
Application 17/222,333 is a continuation of application No. 16/195,477, filed on Nov. 19, 2018, granted, now RE48545.
Application 16/195,477 is a continuation of application No. 15/879,426, filed on Jan. 24, 2018, granted, now RE47256, issued on Feb. 26, 2019.
Application 15/879,426 is a continuation of application No. 13/755,913, filed on Jan. 31, 2013, granted, now RE46764, issued on Mar. 27, 2018.
Application 13/755,913 is a reissue of application No. 12/667,576, filed on Jul. 3, 2008, granted, now 8,087,196, issued on Jan. 3, 2012.
Application 17/222,333 is a reissue of application No. 12/667,576, filed on Jul. 3, 2008, granted, now 8,087,196, issued on Jan. 3, 2012.
Claims priority of application No. 10-2007-0067861 (KR), filed on Jul. 6, 2007.
Int. Cl. F41G 1/00 (2006.01); F41G 1/033 (2006.01); F41G 1/20 (2006.01); F41G 1/28 (2006.01); F41G 1/30 (2006.01); F41G 1/38 (2006.01); F41G 1/473 (2006.01); G02B 23/10 (2006.01); G02B 27/30 (2006.01)
CPC F41G 1/30 (2013.01) [F41G 1/033 (2013.01); F41G 1/20 (2013.01); F41G 1/28 (2013.01); F41G 1/38 (2013.01); F41G 1/473 (2013.01); G02B 23/105 (2013.01); G02B 27/30 (2013.01)] 14 Claims
OG exemplary drawing
 
[ 8. A dot sighting device, comprising:
an illumination element that irradiates light to form an image;
a reflection element that reflects at least a portion of the light irradiated by the illumination element;
a connecting element formed on a portion of the dot sighting device;
a housing having a first side portion that surrounds the reflection element and a second side portion, the illumination element being disposed at the second side portion;
wherein the dot sighting device is attachable to and detachable from a mount by the connecting element;
wherein the reflection element comprises a doublet, with a first surface, an interior second surface and a third surface;
wherein a radius curvature of the second surface is greater than a radius curvature of the third surface;
wherein the radius curvature of the second surface is greater than a radius curvature of the first surface; and
wherein the interior second surface comprises an aspheric surface having a conic coefficient.]