Transmitter and receiver units for spatial position measurement system
First Claim
1. A laser transmitter unit for a spatial measurement system comprising:
- a laser emitter;
a bearing/motor assembly coupled to the laser emitter, the bearing/motor assembly including a rotatable hollow spindle shaft through which a laser beam generated by the laser emitter passes and a motor for driving the spindle shaft;
a prism assembly coupled to the spindle shaft, wherein the prism assembly divides the laser beam generated by the laser emitter into a pair of fanned laser beams; and
reflecting means for reflecting the fanned laser beams generated by the prism assembly as counter-rotating fanned laser beams.
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Abstract
Improved transmitter and receiver units for use in spatial measurement system that are easy and inexpensive to manufacture while providing a high degree of reliability are disclosed. Specifically, the laser transmitter includes a laser emitter, a bearing/motor assembly coupled to the laser emitter, the bearing/motor assembly including a rotatable hollow spindle shaft through which a laser beam generated by the laser emitter passes and a motor for driving the spindle shaft, a prism assembly coupled to the spindle shaft, wherein the prism assembly divides the laser beam generated by the laser emitter into a pair of fanned laser beams, and reflecting means for reflecting the fanned laser beams generated by the prism assembly as counter-rotating fanned laser beams. The receiver unit preferably includes at least one optical receiver coupled to an extension member, a processing unit coupled to the optical receiver, and a receiver interface coupled to the processing unit.
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Citations
13 Claims
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1. A laser transmitter unit for a spatial measurement system comprising:
- a laser emitter;
a bearing/motor assembly coupled to the laser emitter, the bearing/motor assembly including a rotatable hollow spindle shaft through which a laser beam generated by the laser emitter passes and a motor for driving the spindle shaft;
a prism assembly coupled to the spindle shaft, wherein the prism assembly divides the laser beam generated by the laser emitter into a pair of fanned laser beams; and
reflecting means for reflecting the fanned laser beams generated by the prism assembly as counter-rotating fanned laser beams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a laser emitter;
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11. A spatial measurement system comprising:
- at least two transmitter units and at least one receiver unit, wherein the transmitter units include a laser emitter;
a bearing/motor assembly coupled to the laser emitter, the bearing/motor assembly including a rotatable hollow spindle shaft through which a laser beam generated by the laser emitter passes and a motor for driving the spindle shaft;
a prism assembly coupled to the spindle shaft, wherein the prism assembly divides the laser beam generated by the laser emitter into a pair of fanned laser beams; and
reflecting means for reflecting the fanned laser beams generated by the prism assembly as counter-rotating fanned laser beams; and
wherein the receiver unit includes at least one optical receiver coupled to an extension member;
a processing unit coupled to the optical receiver; and
a receiver interface coupled to the processing unit. - View Dependent Claims (12, 13)
- at least two transmitter units and at least one receiver unit, wherein the transmitter units include a laser emitter;
Specification