Improvements to control systems for variable parameter lighting fixtures
Patent 4947302 Issued on August 7, 1990. Estimated Expiration Date: 
October 18, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 18, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3845351 3898643 Computer controlled lighting system having automatically variable position, color, intensity and beam divergence Followspot parameter feedback Control system for variable parameter fixtures Control system for variable parameter lighting fixtures Patent #: 4797795 InventorApplicationNo. 423363 filed on 10/18/1989US Classes:362/233, Remote adjustment or positioning means315/312, PLURAL LOAD DEVICE SYSTEMS362/268, Plural serial lens elements or components362/277, Adjustable or repositionable modifier362/319Adjustable or positionableExaminersPrimary: Husar, Stephen F.Attorney, Agent or FirmInternational ClassF21M 007/00AbstractMethods and apparatus are disclosed for improving the performance of variable parameter lighting systems. Such systems that employ relatively modest speed serial communications between the controller and the fixtures or devices, yet which must accommodate the relatively large amount of desired adjustment data that must be transmitted over the data link for each lighting effect.Field of SearchRemote adjustment or positioning meansRelative adjustment means Adjustable Plural serial lens elements or components Adjustable or repositionable modifier In plane, or extension of modifying surface Plural, relatively movable Angularly adjustable or respositionable Plural, relatively movable With actuator Adjustable or positionable Shutter type Angularly In plane or modifier surface With actuator PLURAL LOAD DEVICE SYSTEMS Electric switch in the supply circuit | |
