Projector and lamp information management method used for the same
First Claim
1. A projector having:
- an optical engine for generating an image with optical means utilizing light of a light source and an electronic device driven by an electrical signal; and
a projection lens for enlarging and projecting a generated image thereof, wherein;
a unit construction having said light source mounted therein and removable from a projector proper and storage means placed in said unit construction for storing electrical information are provided.
2 Assignments
0 Petitions
Accused Products
Abstract
This invention provides a projector capable of correctly informing a user of replacement time of a lamp and significantly improving performance and operation reliability.
A storage circuit is mounted in a detachable lamp unit for accommodating a lamp, and information on the lamp and so on are stored in the storage circuit. If the switch of a projector proper is turned on, a main circuit reads lamp operating time up to the last time from the storage circuit, and compares the read operating time to replacement time of the lamp stored in advance so that the light is emitted from the lamp if the operating time is less, and display for prompting the lamp replacement is performed if the operating time is more, and the light is emitted from the lamp thereafter. If the switch of the projector proper is turned off, the main circuit adds the operating time of this time to the operating time of the lamp up to the last time read from the storage circuit on turning on the switch and writes it to the storage circuit.
19 Citations
12 Claims
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1. A projector having:
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an optical engine for generating an image with optical means utilizing light of a light source and an electronic device driven by an electrical signal; and
a projection lens for enlarging and projecting a generated image thereof, wherein;
a unit construction having said light source mounted therein and removable from a projector proper and storage means placed in said unit construction for storing electrical information are provided. - View Dependent Claims (2, 3, 4)
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5. A lamp information management method of a projector having:
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an optical engine for generating an image with optical means utilizing light of a light source and an electronic device driven by an electrical signal; and
a projection lens for enlarging and projecting a generated image thereof, wherein;
storage means is placed in a unit construction having said light source mounted therein and removable from a projector proper; and
a step of having electrical information on said lamp stored by the storage means is included. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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Specification