Uninterrupted power supply for projection lamp protection
View Patent ↗An apparatus and method for protecting projection lamps 3 in computer monitors, projection television receivers, video projectors 15 , game displays and the like which incorporates a sensor 2 connected to a receiver 6 in an uninterruptible power supply 1 . Sensor 2 detects when the power has been interrupted to lamp 3 and initiates a supply of power to a cooler 8 in projector 15 to the device containing the lamp 3 and begins a normal shut down protocol. The shut down protocol maintains cooling to lamp 3 allowing lamp 3 to cool to a temperature where power may safely be discontinued.
1. A device for preventing damage to projection lamps in projectors having a cooling system and a shut down protocol on loss of external power comprising:
an uninterruptible power supply connected to the projector for providing power in the event of loss of external power,
a sensor for monitoring projector operation connected to said uninterruptible power supply,
a memory connected to said uninterruptible power supply for storing the projector shut down protocol, and
wherein when said sensor detects a loss of power to said projector the shut down protocol stored in said memory initiates the shut down protocol in the projector and said uninteruiptible power supply,
further comprising an infrared receiver connected to said uninterruptible power supply and an infrared transmitter configured to detect a cessation of power to said projector,
wherein said infared transmitter transmits remote control codes and said infrared receiver is capable of receiving said remote control codes.
2. A device as in claim 1 , wherein said infrared receiver is a learning receiver which memorizes the shut down protocol of the projector.
3. A device as in claim 2 , wherein said infrared transmitter transmits a code selected from the “power”and “power off”codes that it was “taught ” when the external power fails.
4. A device as in claim 3 , wherein said uninterruptible power supply monitors the power consumption and repeats the code until it senses the reduction of power from the lamp having been shut down and then can maintain the power to the projector until the cooling system has timed out as it normally does under its normal shut down protocol.
5. A device as in claim 4 , wherein said cooling system is a fan.
6. A device as in claim 2 , wherein said infrared transmitter is connected to the projector.
7. A method for preventing damage to projection lamps in projectors having a cooling system and a shut down protocol on loss of external power comprising:
storing the projector shut down protocol,
monitoring projector operation for loss of external power,
providing power in the event of loss of external power,
initiating said stored projector shut down protocol in the event of the loss of external power,
continuing said steps until said lamp has safely cooled
wherein said monitoring step is performed by an infrared sensor,
wherein said initiation step is performed by transmitting an infrared signal upon cessation of power to said projector lamp.
8. A method as in claim 7 , wherein said infrared signal is a remote control code.
9. A method as in claim 8 , wherein said infrared signal is received by a receiver that memorized the shut down protocol of the projector.
10. A method as in claim 9 , wherein said infrared signal is a code selected from the “power”and “power off”codes that it was “taught”when the external power fails.
11. A method as in claim 10 , wherein said code is repeatedly sent until the reduction of power from the lamp indicates that it has been shut down and maintains the power to the projector until the cooling system has timed out as it normally does under its normal shut down protocol.
12. A method as in claim 11 , wherein said cooling system is a fan.
13. A method as in claim 10 , wherein said signal is from a transmitter connected to the projector.
14. A uninterruptible power supply device for preventing damage to projection lamps in projectors having a cooling system and a shut down protocol on loss of external power comprising:
an stored supply of electrical potential connected to the projector for providing power in the event of loss of external power,
a sensor for monitoring projector operation connected to said projector and capable of transmitting remote control codes to said uninterruptible power supply,
a remote control code receiver having a memory connected to said uninterruptible power supply for storing the projector shut down protocol, and
wherein when said sensor detects a loss of power to said projector a remote control code is transmitted to said receiver the initiating the shut down protocol in the projector and said uninterruptible power supply.