<amended-claims mxw-id="PCLM108719549" lang="EN" load-source="patent-office" amended-claim-type="EPC">
<heading id="h0006">Amended claims in accordance with Rule 137(2) EPC.</heading>
<claim id="ac-en-0001" num="0001">
<claim-text>
An apparatus, comprising:
<claim-text>
a planar array (201) of one or more photo-voltaic cells;
</claim-text>
<claim-text>
an elongated stalk (203) having the planar array (201) fixed at one end thereof,
the elongated stalk comprising a helical structure formed from a mechanically
photo responsive polymer arranged to passively cause the elongated stalk to
bend in a direction perpendicular to an axis of the elongated stalk in response
to one side of the elongated stalk being illuminated with a greater intensity of
light than an opposite side of the elongated stalk, wherein the elongated stalk
includes a plurality of bimetallic strips (301) arranged around the axis of the
elongated stalk and extending parallel to the axis of the elongated stalk, each
of the bimetallic strips being able to bend in response to a temperature change.
</claim-text>
</claim-text>
</claim>
<claim id="ac-en-0002" num="0002">
<claim-text>
The apparatus as claimed in claim I, wherein an outer surface of the elongated
stalk comprises a polymer including a photosensitive or phototropic material selected
from cinnamic acid, cinnamylidene or azobenzene.
</claim-text>
</claim>
<amended</amended-claim>claims> |