The ornamental design for a lightcodingdevice, as shown and described.
FIG. 1 is an isometric view from the front right and top of a light coding device showing our new design;
FIG. 2 is an isometric view from the front left and top thereof;
FIG. 3 is an isometric view taken from the rear right and top thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a right side elevational view thereof;
FIG. 9 is a left side elevational view thereof;
FIG. 10 illustrates mounting of the light coding device on a wrist strap retained by rods extending between the nubbins shown on the rear side, the wrist strap is shown in dashed lines and forms no part of the invention;
FIG. 11 illustrates the light coding device supported from a necklace, the necklace is shown in dashed lines and forms no part of the invention; and,
FIG. 12 illustrates the light coding device attached to a key fob, the key fob and strap being shown in dashed lines and form no part of the invention.