PROJECTOR AND CONTROL METHOD THEREOF

• US 20080297736A1
• Filed: 02/22/2008
• Published: 12/04/2008
• Est. Priority Date: 03/09/2007
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Ishida, Tessho, Oka, Daizo, Nagumo, Hirobumi, SHIRASU, Toshiyuki
• Granted Patent: US 8,016,433 B2
• Time in Patent Office: Days
• US Class Current: 353/85
• CPC Class Codes: G03B 21/20 Lamp housings
• CPC Class Codes: G03B 21/2026 Gas discharge type light sources, e.g. arcs
• CPC Class Codes: G03B 21/206 Control of light source other than position or intensity

Abstract

Disclosed herein is a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of the lamps loadable into the projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, the projector including: a lamp power supply for driving the lamp loaded in the projector, the lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of the lamp power supply, and one predetermined mode range of the plurality of mode ranges being freely set in the lamp power supply; and a control circuit for controlling the lamp power supply.

Claims

1. A projector that can be loaded with lamps of a plurality of kinds, each of a plurality of said lamps loadable into said projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, said projector comprising:

a lamp power supply for driving said lamp loaded in said projector, said lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of said lamp power supply, and one predetermined mode range of said plurality of mode ranges being freely set in said lamp power supply; and

a control circuit for controlling said lamp power supply;

wherein said control circuit sets a range from the minimum wattage to the maximum wattage included in said lamp serial code given to said lamp loaded in said projector as a code range, and compares the code range with said mode range set in said lamp power supply,

said control circuit determines a range not exceeding said maximum wattage included in said lamp serial code as a lamp driving controlling range within which the driving of said lamp power supply is controlled on a basis of a result of comparison of said code range with said mode range, and

said control circuit controls the driving of said lamp power supply within the determined lamp driving controlling range.

2. The projector according to claim 1,

wherein said control circuit determines a range in which said code range and said mode range overlap each other as said lamp driving controlling range.

3. A control method of a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of said lamps loadable into said projector being given a lamp serial code formed by arranging lamp information including at least a minimum wattage and a maximum wattage of the lamp and a check sum in predetermined order, said projector including a lamp power supply for driving said lamp loaded in said projector, said lamp power supply being provided in advance with a plurality of mode ranges each as a range from a minimum wattage to a maximum wattage of output of said lamp power supply, and one predetermined mode range of said plurality of mode ranges being freely set in said lamp power supply, and a control circuit for controlling said lamp power supply, said control method comprising:

said control circuit setting a range from the minimum wattage to the maximum wattage included in said lamp serial code given to said lamp loaded in said projector as a code range, and comparing the code range with said mode range set in said lamp power supply;

said control circuit determining a range not exceeding said maximum wattage included in said lamp serial code as a lamp driving controlling range within which the driving of said lamp power supply is controlled on a basis of a result of comparison of said code range with said mode range; and

said control circuit controlling the driving of said lamp power supply within the determined lamp driving controlling range.

4. A projector that can be loaded with lamps of a plurality of kinds, each of a plurality of said lamps loadable into said projector being given a lamp serial code formed by arranging lamp information on the lamp and a check sum in predetermined order, said projector comprising

a control circuit for performing a clocking operation of a lamp timer for managing a use time of said lamp loaded in said projector;

wherein when an instruction for resetting said lamp timer is given, said control circuit determines that said lamp loaded in said projector is replaced with a predetermined lamp, and displays a GUI, namely Graphical User Interface image for receiving input of said lamp serial code attached to the predetermined lamp,

by checking a part corresponding to said check sum in information input as said lamp serial code in said GUI image, said control circuit determines whether the input information is a valid said lamp serial code,

when said control circuit determines that the input said information is a valid said lamp serial code, said control circuit permits the resetting of said lamp timer, and

when said control circuit determines that the input said information is invalid information other than said lamp serial code, said control circuit prohibits the resetting of said lamp timer.

5. The projector according to claim 4,

wherein said control circuit makes pop-up display of said GUI image.

6. A control method of a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of said lamps loadable into said projector being given a lamp serial code formed by arranging lamp information on the lamp and a check sum in predetermined order, said projector including a control circuit for performing a clocking operation of a lamp timer for managing a use time of said lamp loaded in said projector, said control method comprising:

when an instruction for resetting said lamp timer is given, said control circuit determining that said lamp loaded in said projector is replaced with a predetermined lamp, and making pop-up display of a GUI, namely Graphical User Interface image for receiving input of said lamp serial code attached to the predetermined lamp;

by checking a part corresponding to said check sum in information input as said lamp serial code in said GUI image, said control circuit determining whether the input information is a valid said lamp serial code;

when said control circuit determines that the input said information is a valid said lamp serial code, said control circuit permitting the resetting of said lamp timer; and

when said control circuit determines that the input said information is invalid information other than said lamp serial code, said control circuit prohibiting the resetting of said lamp timer.

7. A projector that can be loaded with lamps of a plurality of kinds, each of a plurality of said lamps loadable into said projector being given a lamp serial code formed by arranging lamp information including at least a nominal life time of the lamp and a check sum in predetermined order, said projector comprising

a control circuit for performing a clocking operation of a lamp timer for managing a use time of said lamp loaded in said projector;

wherein when said lamp loaded in said projector is replaced with a predetermined lamp, said control circuit receives input of said lamp serial code attached to the predetermined lamp,

by checking a part corresponding to said check sum in information input as said lamp serial code, said control circuit determines whether the input information is a valid said lamp serial code,

when said control circuit determines that the input information is a valid said lamp serial code, said control circuit resets said lamp timer, and resumes the clocking operation of said lamp timer, and

when a clocked value of said lamp timer has reached a value based on said nominal life time included in said lamp serial code, said control circuit presents an alarm recommending replacement of said predetermined lamp loaded in said projector.

8. A control method of a projector that can be loaded with lamps of a plurality of kinds, each of a plurality of said lamps loadable into said projector being given a lamp serial code formed by arranging lamp information including at least a nominal life time of the lamp and a check sum in predetermined order, said projector including a control circuit for performing a clocking operation of a lamp timer for managing a use time of said lamp loaded in said projector, said control method comprising

when said lamp loaded in said projector is replaced with a predetermined lamp, said control circuit receiving input of said lamp serial code attached to the predetermined lamp;

by checking a part corresponding to said check sum in information input as said lamp serial code, said control circuit determining whether the input information is a valid said lamp serial code;

when said control circuit determines that the input information is a valid said lamp serial code, said control circuit resetting said lamp timer, and resuming the clocking operation of said lamp timer; and

when a clocked value of said lamp timer has reached a value based on said nominal life time included in said lamp serial code, said control circuit presenting an alarm recommending replacement of said predetermined lamp loaded in said projector.