We claim the ornamental design for a device for optical physiological measurement, as shown and described.
FIG. 1 is front view of a device for optical physiological measurement illustrated with a cap attached and with a front protective pouch shown in broken lines that do not form the claimed design in front of two holes that are part of the claimed design;
FIG. 2 is a perspective view thereof;
FIG. 3 is a side elevation view thereof (both sides being mirror images of each other);
FIG. 4 is a rear view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof with an oval shaped cavity illustrated in broken lines; and,
FIG. 7 is a front perspective view of the device with the cap off and attached at the bottom of the device.
The claimed subject matter extends to the boundary but does not include the boundary.
The broken lines in the drawings represent unclaimed environmental subject matter and form no part of the claim.