Method of forming magnetic eyeglass appliance

Abstract

An eyeglass accessory frame includes an auxiliary frame. The auxiliary frame includes a heat-treated magnetic alloy. The heat-treated magnetic alloy of the auxiliary frame is configured to magnetically couple the auxiliary frame to a primary frame having magnetizable material. A method is also provided.

1 . An eyeglass accessory frame, comprising: 
 an auxiliary frame including a heat-treated magnetic alloy;    wherein the heat-treated magnetic alloy of the auxiliary frame is configured to magnetically couple the auxiliary frame to a primary frame having magnetizable material.    
     
     
         2 . The eyeglass accessory frame of  claim 1  wherein the auxiliary frame comprises a spinodal decomposition alloy, wherein the auxiliary frame is formed using the spinodal decomposition alloy, and wherein the formed auxiliary frame is heat treated to magnetize the spinodal decomposition alloy.  
     
     
         3 . The eyeglass accessory frame of  claim 2  wherein the spinodal decomposition alloy is heat treated to polarize the spinodal decomposition alloy through the material generally along a direction extending substantially perpendicular to a contact surface formed between the auxiliary frame and the primary frame.  
     
     
         4 . The eyeglass accessory frame of  claim 1  wherein the auxiliary frame comprises Arnokrome 3, and wherein the Arnokrome 3 is heat treated to polarize the auxiliary frame in a direction extending substantially perpendicular to a local contact plane formed between the accessory frame and the primary frame.  
     
     
         5 . The eyeglass accessory frame of  claim 1  further comprising an alignment structure provided on the auxiliary frame and configured to internest in assembly with the primary frame so as to align the auxiliary frame onto the primary frame.  
     
     
         6 . The eyeglass accessory frame of  claim 5  wherein the alignment structure comprises at least one rim flange carried by the auxiliary frame and configured to conformably nest along a peripheral edge of the primary frame.  
     
     
         7 . The eyeglass accessory frame of  claim 5  wherein the alignment structure comprises a forked retention member configured to interdigitate with the primary frame so as to align the auxiliary frame over the primary frame.  
     
     
         8 . The eyeglass accessory frame of  claim 7  wherein a pair of forked retention members are provided each on opposite outer edges of the auxiliary frame, wherein each of the forked retention members is configured to encompass a temple extension member on the primary frame so as to align the auxiliary frame over the primary frame.  
     
     
         9 . The eyeglass accessory frame of  claim 5  wherein the alignment structure comprises a retention arm configured to interdigitate with a leg of the primary frame so as to align the auxiliary frame over the primary frame.  
     
     
         10 . The eyeglass accessory frame of  claim 9  wherein a pair of the retention arms are provided each on opposite outer edges of the auxiliary frame, wherein each retention arm is configured to encompass a respective leg of the primary frame, and wherein the retention arm comprises a heat-treated magnetic alloy.  
     
     
         11 . The eyeglass accessory frame of  claim 1  wherein the auxiliary frame comprises a sunglass frame of magnetic alloy configured to internest and magnetically couple to a front face of a primary frame comprising eyeglasses.  
     
     
         12 . An eyeglass device, comprising: 
 a primary frame including magnetizable material; and    an auxiliary frame including a spinodal decomposition alloy heat treated to magnetize at least a portion of the auxiliary frame;    wherein the magnetized portion of the auxiliary frame interacts with the magnetizable material of the primary frame to magnetically couple the auxiliary frame to the primary frame.    
     
     
         13 . The eyeglass device of  claim 12  wherein the auxiliary frame is formed using the spinodal decomposition alloy, after which the formed auxiliary frame is heat treated to magnetize the spinodal decomposition alloy.  
     
     
         14 . The eyeglass device of  claim 12  wherein the primary frame comprises eyeglasses and the auxiliary frame comprises a sunglass attachment that is magnetically coupled to a front face of the eyeglasses.  
     
     
         15 . The eyeglass device of  claim 12  wherein the heat treated spinodal decomposition alloy is polarized through the auxiliary frame extending in a direction substantially perpendicular to local contact surfaces formed between the auxiliary frame and the primary frame.  
     
     
         16 . The eyeglass device of  claim 12  further comprising an alignment mechanism provided on one of the primary frame and the auxiliary frame to further align the auxiliary frame onto the primary frame when magnetically coupled therebetween.  
     
     
         17 . The eyeglass device of  claim 16  wherein the alignment mechanism comprises a rim flange extended rearwardly of the auxiliary frame and configured to mate in abutment with a peripheral edge of the primary frame.  
     
     
         18 . The eyeglass device of  claim 16  wherein the alignment mechanism comprises a pair of forked retention members each configured to internest with the primary frame when the auxiliary frame is magnetically coupled to a front face of the primary frame and to align the auxiliary frame over the primary frame.  
     
     
         19 . The eyeglass device of  claim 18  wherein each forked retention member is provided on an opposite lateral edge of the auxiliary frame, and wherein each forked retention member interdigitates with a temple extension member of the primary frame to align the auxiliary frame in magnetically coupled engagement to a front face of the primary frame.  
     
     
         20 . The eyeglass device of  claim 15  wherein one of the primary frame and the auxiliary frame comprises a raised structural portion and another of the primary frame and the auxiliary frame comprises a complementary slot configured to receive the raised structural portion so as to impart alignment of the auxiliary frame magnetically coupled with the primary frame.  
     
     
         21 . The eyeglass device of  claim 12  wherein the spinodal decomposition alloy comprises an iron-chromium-cobalt alloy.  
     
     
         22 . The eyeglass device of  claim 12  wherein the spinodal decomposition alloy comprises a remanent magnetizable alloy.  
     
     
         23 . The eyeglass device of  claim 12  wherein the primary frame comprises a leg end portion of magnetizable material and the auxiliary frame comprises a retention arm of spinodal decomposition alloy heat treated to magnetize the retention arm, wherein the retention arm interacts with the leg end portion to magnetically couple the auxiliary frame to the primary frame.  
     
     
         24 . The eyeglass device of  claim 23  wherein the primary frame comprises a pair of retention arms each configured to internest with a respective leg of the primary frame to magnetically couple the auxiliary frame to the primary frame in magnetic and mechanically interlocking relation therebetween.  
     
     
         25 . An eyeglass device, comprising: 
 a first frame including magnetizable material; and    a second, complementary frame including a heat-treated magnetic alloy;    wherein the magnetic alloy of the second frame interacts with the magnetizable material of the first frame to magnetically couple together the first frame and the second frame.    
     
     
         26 . The eyeglass device of  claim 25  wherein the first frame comprises a primary frame and the second frame comprises an auxiliary frame.  
     
     
         27 . The eyeglass device of  claim 26  wherein the primary frame comprises eyeglasses and the secondary frame comprises a sunglass frame configured to internest and magnetically couple to a front face of the eyeglasses.  
     
     
         28 . A method of forming a magnetic eyeglass appliance, comprising: 
 forming an accessory frame at least in part from a spinodal decomposition alloy; and    heat treating the formed accessory frame to magnetize the spinodal decomposition alloy.    
     
     
         29 . The method of  claim 28  wherein the accessory frame comprises a sunglass attachment configured for magnetic attachment to eyeglasses having a frame that includes magnetizable material.  
     
     
         30 . The method of  claim 28  wherein the spinodal decomposition alloy comprises an iron-chromium-cobalt alloy used to form the accessory frame.  
     
     
         31 . The method of  claim 28  wherein the accessory frame includes an alignment structure configured to internest in assembly with a primary frame having magnetizable material.  
     
     
         32 . The method of  claim 28  wherein the magnetized alloy cooperates with the magnetizable material as the auxiliary frame is nested with a primary frame, and wherein the alignment structure aligns the auxiliary frame with the primary frame.  
     
     
         33 . A method of forming a magnetic eyeglass appliance, comprising: 
 providing an auxiliary frame having a spinodal decomposition alloy; and    heat treating the spinodal decomposition alloy to magnetize the spinodal decomposition alloy.    
     
     
         34 . The method of  claim 33  wherein the auxiliary frame is heat treated to generate a heat-treated magnetic alloy of the auxiliary frame.  
     
     
         35 . The method of  claim 34  wherein the heat-treated alloy comprises an iron-chromium-cobalt alloy, and wherein heat treating comprises transforming the alloy from a homogeneous single-phase structure to a separated two-phase structure with one phase being magnetic.  
     
     
         36 . The method of  claim 33  wherein heat treating comprises directionally heat treating the spinodal decomposition alloy to polarize the spinodal decomposition alloy through the auxiliary frame extending generally along a direction substantially perpendicular to a contact surface formed between the auxiliary frame and a primary frame along which the auxiliary frame is carried.  
     
     
         37 . The method of  claim 33  wherein the step of providing an auxiliary frame comprises forming an auxiliary frame using an iron-chromium-cobalt alloy.