Alignment with linear array of receptors
AssigneeHewlett-Packard Development Company, L.P.
InventorDaryl E. Anderson
Life of this patent
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Abstract
A beam projector is aligned with a linear array of receptors. An alignment receptor is at each end of the linear array of receptors. A beam is projected from the projector. The beam is swept until the alignment receptors sense the beam. A signal is transmitted upon each of the alignment receptors sensing the beam. The position of the beam projector is recorded in response to the transmitted signals. The alignment position of the beam projector, to align with the linear array of receptors, is computed from the recorded positions. The beam projector is aligned with the linear array of receptors according to the alignment position.
Claims19
A method for aligning a beam projector, comprising:
- projecting a beam from the projector;
- sweeping the beam across a first alignment receptor, a second alignment receptor and a linear array of receptors positioned between and adjacent the first alignment receptor and the second alignment receptor;
- sensing the beam using the first alignment sensor and the second alignment sensor;
- transmitting a first signal after the first alignment sensor senses the beam;
- transmitting a second signal after the second alignment sensor senses the beam
- responsive to the first signal and the second signal, recording the position of the beam projector;
- computing, from the recorded positions, an alignment position of the beam projector to align with the linear array of receptors;
- and
- aligning the beam projector with the linear array of receptors according to the alignment position.
A program storage system readable by a computer, tangibly embodying a program, applet, or instructions executable by the computer to perform a method comprising:
- instructing the projector to project a beam;
- instructing a positioning system to sweep the beam across a first alignment receptor, a second alignment receptor and a linear array of receptors positioned between and adjacent the first alignment receptor and the second alignment receptors;
- sensing the beam using the first alignment sensor and the second alignment sensor;
- receiving a first signal indicative of the first alignment receptors sensing the beam;
- receiving a second signal indicative of the second alignment sensor sensing the beam;
- responsive to the first signal and the second signal, recording the position of the beam projector;
- computing, from the recorded positions, an alignment position of the beam projector to align with the linear array of receptors;
- and
- instructing the positioning system to align the beam projector according to the alignment position.
Dependencies are inferred from the claim text.