Glasses 3d simulation

[Lordremcok]

ok I made eyeglasses that are 3d model AND
i want to use them in game
I know im able to do it by using it as NVgoogles
,i also know that the NV is a CFGweapon class
my object's name is "LRD_glasses3d"
and optika "LRD_GLASSopt"

WHAT must i write in config cpp to mnake them work ?
#define TEast 0
#define TWest 1
#define TGuerrila 2
#define TCivilian 3
#define TSideUnknown 4
#define TEnemy 5
#define TFriendly 6
#define TLogic 7
#define true 1
#define false 0
#define private 0
#define protected 1
#define public 2


class CfgPatches
{
   class lrd_glass3d
   {
      units[] = {lrd_glass3d};
      weapons[] = {};
      requiredVersion = 1.85;
   };
};

this part is good i suppose

class CfgWeapons
{ ? I DONT KNOW ANYTHNG ABOUT THIS ONE  - help }
class lrd_glass3d : Binocular - iss this good ?

   {
      displayName = lrd_glass3d;
      showEmpty = false;
      valueWeapon = 5;
      opticsZoomMin=1.0;
      opticsZoomMax=1.0;
      modelOptics="/lrd_glass3d/lrd_GLASSopt";
      model="/lrd_glass3d/lrd_glass3d";
   };
};

HHHHEEEEEEEEEEEEEELP