Gobo wheel location drive
View Patent ↗A gobo wheel with automatic detection system that automatically detects a rotational position of the gobo. The rotational position can be detected by a magnetic marking system. Each of the gobos can be randomly placed within the holder. the position of the gobos can be automatically determined during a start up routine for example, and then those positions can be stored and used for later determination of a position.
1. A system, comprising:
a gobo holder including a plurality of gobos that are each rotatable and are each replaceable, each of said plurality of gobos including a location part attached to the gobo to rotate as the gobo is rotated;
a gobo rotation part, that rotates said gobos;
a location part detecting device, located in a specified position relative to each of said gobo holders, and which detects when the location part is adjacent said specified position; and
a processing part, which determines a calibration value based on said location part being adjacent said specified position.
2. A system as in claim 1 , wherein said gobo rotation part rotates all of said gobos simultaneously.
3. A system as in claim 1 , wherein said processing part uses said calibration value to determine an actual orientation of said gobo, and to adjust a desired orientation based on said calibration value.
4. A system as in claim 1 , wherein said plurality of gobos each have toothed outer surfaces, and said gobo rotation part includes a rotation wheel.
5. A system as in claim 1 , wherein said gobo holders holds a plurality of gobos which are each in random positions relative to one another, and said processing part stores calibration values that represent said random positions.
6. An apparatus, comprising:
a gobo holder, having locations for a plurality of rotatable gobos;
a plurality of rotatable gobos, each located in one of said locations, and each in random orientations relative to one another and a detection part on each of said rotatable gobos, which enables detection of said locations of said gobos automatically by a remote structure.
7. Apparatus as in claim 6 , wherein said detection part is magnetic.
8. An apparatus as in claim 6 , wherein said detection part is optical.