JP2012043723A - Projector, and projector control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projector capable of easily grasping a cumulative lighting time of a lamp, and a projector control method.SOLUTION: The projector has: a lamp unit 3; a lamp unit mounting part 4, to which the lamp unit 3 is detachably mounted; a storage unit 11 for storing a cumulative lighting time of the lamp unit 3 mounted to the lamp unit mounting part 4; an addition unit 16 for adding the cumulative lighting time according to lighting of the lamp unit 3; and a lamp unit detection unit 5, which is an identification unit for identifying the lamp unit 3 mounted to the lamp unit mounting part 4 by an identifier given to the lamp unit 3. The storage unit 11 stores the cumulative lighting time per lamp unit 3 corresponding to the identifier, and the addition unit 16 adds the cumulative lighting time of the lamp unit 3 corresponding to the identifier identified by the identifying unit.

Description

  The present invention relates to a projector and a projector control method, and more particularly to a projector that uses a lamp as a light source.

  Conventionally, a lamp used as a light source of a projector is exhausted after a cumulative lighting time that can emit a relatively stable light, and the color balance is reduced due to attenuation of light amount or intensity depending on wavelength. Detrimental effects such as deterioration will occur. For this reason, it is necessary to replace the lamp at a time before the end of its life.

  In order to prevent a lamp that has reached the end of its life from being used as it is, for example, Patent Document 1 discloses that when a lamp is used even once, a conductive portion is irreversibly turned off and turned on. There has been proposed a technique for confirming whether or not a lamp unit has been used based on whether or not it is present. Patent Document 2 proposes a lamp unit including a memory for storing lighting time.

Japanese Patent Laid-Open No. 10-177898 JP 2000-267061 A

  In the technology of turning off the lamp by one use of the lamp, it is possible to determine whether the lamp is unused or used. On the other hand, there is a means for confirming how long the lamp has been used. There is no problem because it is not possible to identify whether or not the lifetime has been reached. When using a projector by using a plurality of lamp units, it is difficult to effectively use the lamp units if the cumulative lighting time of each lamp is unknown. In addition, the technique of mounting a memory in the lamp unit has a problem that the lamp unit is expensive. The present invention has been made in view of the above-described problems, and an object thereof is to provide a projector capable of easily grasping the cumulative lighting time of a lamp, and a projector control method.

  In order to solve the above-described problems and achieve the object, a projector according to the present invention includes a lamp unit, a lamp unit mounting portion on which the lamp unit is detachably mounted, and the lamp unit mounting portion mounted on the lamp unit mounting portion. A storage unit that stores the cumulative lighting time by the lamp unit, an addition unit that adds the cumulative lighting time according to the lighting of the lamp unit, and the lamp unit that is mounted on the lamp unit mounting unit are connected to the lamp unit. An identification unit that is identified by a given identifier, the storage unit stores the cumulative lighting time for each of the lamp units in association with the identifier, and the addition unit is identified by the identification unit. The cumulative lighting time of the lamp unit corresponding to the identifier is added.

  By identifying the plurality of lamp units in the identification unit and storing the accumulated lighting times of the plurality of lamp units in the storage unit in association with the identifiers, the accumulated lighting times of the respective lamp units can be easily grasped. As a result, a projector capable of easily grasping the cumulative lighting time of the lamp can be obtained.

  In a preferred aspect of the present invention, in the lamp unit, the identifier is preferably expressed as a pattern in which a plurality of fuses are blown. By using a fuse, the identifier can be realized at a relatively low cost. Moreover, an identifier can be easily given by fusing a fuse with an appropriately selected pattern.

  Further, as a preferred aspect of the present invention, an identifier assigning unit that assigns the identifier to the lamp unit is provided, and when an unused lamp unit is attached to the lamp unit attaching unit, the identifier assigning unit includes: It is preferable that the selection of the identifier to be given to the unused lamp unit is received, and the storage unit resets the accumulated lighting time stored in association with the selected identifier. Thereby, the counting of the cumulative lighting time can be started for the unused lamp unit.

  According to a preferred aspect of the present invention, the image projection unit projects an image light, and the image projection unit stores the storage unit when the unused lamp unit is mounted on the lamp unit mounting unit. It is desirable to display a list of the accumulated lighting times stored in the screen by projection. The user can select an identifier to be assigned to an unused lamp unit by referring to the list of accumulated lighting times displayed by the video projection unit.

  Further, as a preferred aspect of the present invention, the storage unit stores an identifier of a lamp unit in which a lamp burnout has occurred, and when an unused lamp unit is mounted on the lamp unit mounting unit, the identifier giving unit Preferably, the identifier of the lamp unit in which the lamp burnout has occurred is read from the storage unit and given to the unused lamp unit. As a result, the cumulative lighting time count can be easily switched from the lamp unit in which the lamp has run out to the unused lamp unit.

  Further, as a preferred aspect of the present invention, when the identification unit identifies an identifier different from the identifier of the lamp unit last mounted on the lamp unit mounting unit, the addition unit identifies the identification unit. It is desirable to switch the target of addition of the cumulative lighting time to the lamp unit of the identifier. Thereby, when the lamp unit mounted in the lamp unit mounting portion is replaced, the cumulative lighting time count can be easily and reliably switched.

  According to a preferred aspect of the present invention, the image projection unit projects an image light, and the image projection unit identifies an identifier different from an identifier of a lamp unit last attached to the lamp unit attachment unit. When the unit is identified, it is desirable to display by projection that the lamp unit mounted on the lamp unit mounting unit has been switched. Accordingly, the user can easily recognize that the lamp unit mounted on the lamp unit mounting portion has been replaced.

  Furthermore, the projector control method according to the present invention includes a lamp unit mounting step in which a lamp unit is mounted, a storage step of storing a cumulative lighting time by the lamp unit mounted in the lamp unit mounting step, and the lamp unit. An adding step of adding the cumulative lighting time according to the lighting of the lamp, and an identification step of identifying the lamp unit mounted in the lamp unit mounting step by an identifier assigned to the lamp unit, In the step, the cumulative lighting time for each lamp unit is stored in association with the identifier, and in the adding step, the cumulative lighting time of the lamp unit corresponding to the identifier identified in the identification step is added. It is characterized by that. By identifying a plurality of lamp units and storing the cumulative lighting times of the plurality of lamp units in association with the identifiers, the cumulative lighting times of the respective lamp units can be easily grasped. Thereby, it is possible to easily grasp the cumulative lighting time of the lamp.

1 is a diagram showing a block configuration of a projector according to an embodiment of the invention. The schematic diagram which shows schematic structure of a lamp unit. The table | surface which shows the example of a setting of the relationship between the fusing pattern and ID of each fuse. The flowchart explaining the procedure until it starts the count of accumulation lighting time. The figure which shows the example of the image displayed when an unused lamp unit is mounted | worn. The figure which shows the example of the image displayed when selection of ID is input. The figure which shows the example of the image displayed when it replaces | exchanges for the used lamp unit different from the last time.

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is a diagram showing a block configuration of a projector 1 according to an embodiment of the present invention. The power supply unit 6 is connected to a commercial power outlet or the like and supplies power to the projector 1. A plurality of input terminals 7 are connected to external connection devices such as various disk players and personal computers, for example. The projector 1 acquires video information from an external device via the input terminal 7.

  The remote control light receiving unit 9 receives a signal transmitted from the remote control 17 and transmits it to the key input processing unit 10 when the remote control 17 is operated to operate the projector 1. The key input processing unit 10 receives key input from an operation unit (not shown) provided in the main body or a remote controller 17 and transmits input information to the control unit 12. The control unit 12 controls the overall projector 1, for example, the power supply unit 6, the storage unit 11, the lamp unit 3, the input selection unit 8, the video processing unit 13, and the like.

  The input selection unit 8 selects information to be sent to the video processing unit 13 from information acquired from the input terminal 7 in response to a command from the control unit 12. The video processing unit 13 performs processing for display by the projector 1 on the video information selected by the input selection unit 8. The video output unit 14 outputs video information that has been processed by the video processing unit 13. The video projection unit 15 modulates the light from the lamp unit 3 in accordance with the video information from the video output unit 14 and projects it onto the irradiated surface as video light.

  The lamp unit 3 includes a lamp, for example, a metal halide lamp, a xenon lamp, a high-pressure mercury lamp, and the like. The lamp unit 3 supplies light to the image projection unit 15. The lamp unit mounting part 4 mounts the lamp unit 3 in a detachable manner. The lamp unit detection unit 5 detects the lamp unit 3 mounted on the lamp unit mounting unit 4. The lamp unit detection unit 5 functions as an identification unit that identifies the lamp unit 3 mounted on the lamp unit mounting unit 4.

  The storage unit 11 stores the cumulative lighting time for each lamp unit 3. The adding unit 16 provided in the control unit 12 adds the cumulative lighting time according to the lighting of the lamp unit 3. The adder 16 counts the cumulative lighting time by adding the cumulative lighting time read from the storage unit 11.

  FIG. 2 is a schematic diagram showing a schematic configuration of the lamp unit 3. The lamp unit 3 includes a lamp 21 and an identifier 22. The identifier 22 includes three fuses F1, F2, and F3. In the lamp unit 3, the identifier 22 is represented as a pattern in which the three fuses F1, F2, and F3 are fused.

  FIG. 3 is a chart showing a setting example of the relationship between the fusing patterns of the fuses F1, F2, and F3 and the ID assigned to the lamp unit 3. For each of the fuses F1, F2, and F3, “ON” represents a conduction state before fusing, and “OFF” represents a non-conduction state after fusing. When the three fuses F1, F2, and F3 are “ON”, that is, when any of the fuses F1, F2, and F3 is not blown, it indicates that the lamp unit 3 is not used.

  Except when all of the three fuses F1, F2, and F3 are “ON”, there are seven patterns of “ON” and “OFF” of the three fuses F1, F2, and F3. The controller 12 assigns IDs 1 to 7 to the lamp unit 3 using the seven patterns. The identifier 22 in the lamp unit 3 corresponds to a value obtained by replacing the numerical value of ID with the “ON” and “OFF” patterns of the fuses F1, F2, and F3 based on the relationship of FIG. The control unit 12 functions as an identifier providing unit that assigns the identifier 22 to the lamp unit 3.

  The lamp unit detection unit 5 detects that all three fuses F1, F2, and F3 are “ON”, so that the lamp unit 3 mounted on the lamp unit mounting unit 4 is unused. Identify. Further, the lamp unit detection unit 5 identifies up to seven lamp units 3 other than the unused one from the patterns of the three fuses F1, F2, and F3. The storage unit 11 stores the cumulative lighting time for each lamp unit 3 in association with the ID.

  FIG. 4 is a flowchart for explaining a procedure until counting of the cumulative lighting time of the lamp unit 3 is started. When power supply from the power supply unit 6 is started by starting the projector 1, the lamp unit detection unit 5 identifies the fuse pattern of the lamp unit 3 mounted on the lamp unit mounting unit 4 (step S1). The identification result is transmitted to the control unit 12.

  The control unit 12 compares the ID identified in step S1 with the ID of the lamp unit 3 that was mounted last before the current activation. The storage unit 11 stores the ID of the lamp unit 3 that was mounted last. When the lamp unit 3 mounted this time has the same ID (identifier) as that of the last mounted lamp unit 3 (No in step S2), the adding unit 16 is stored in association with the ID. The accumulated accumulated lighting time is read from the storage unit 11 and counting is started (step S9).

  When the lamp unit 3 mounted this time has a different ID (identifier) from the last mounted lamp unit 3 (step S2, Yes), the control unit 12 is mounted on the lamp unit mounting unit 4. It is determined whether or not the existing lamp unit 3 is unused. When the mounted lamp unit 3 is unused (step S3, Yes), the control unit 12 instructs the video processing unit 13 to display a list of accumulated lighting times stored in the storage unit 11. . The video projection unit 15 displays a list of accumulated lighting times output from the video output unit 14 via the video processing unit 13 on the irradiated surface by projection (step S4).

  FIG. 5 is a diagram illustrating an example of an image displayed by the video projection unit 15 when an unused lamp unit 3 is mounted. The image 31 lists the lamp ID and the cumulative lighting time, and also indicates a word indicating that the installed lamp unit 3 is unused (for example, “New lamp detected in the figure is detected. ”) Is displayed. Further, in the same image 31, a word for instructing the user to select an ID to be given to the mounted lamp unit 3 (for example, “Please select a lamp ID to be used” in the figure) and an ID. A cursor for selection (for example, an arrow in the figure) is displayed.

  The user refers to the image 31 and moves the cursor to confirm, thereby selecting an ID to be given to the mounted lamp unit 3. The control part 12 receives selection of ID by a user. Note that the display of the wording in the image 31, a list of accumulated lighting times, and the like are not limited to those illustrated, and may be changed as appropriate. The selection of the ID is not limited to the case of specifying and inputting with the cursor, and any method may be adopted.

  FIG. 6 is a diagram illustrating an example of an image displayed by the video projection unit 15 when an ID selection is input. Here, for example, a case where ID1 is selected will be described. The image 32 displays a wording that the selection of ID1 has been accepted (for example, “Lamp ID1 has been selected” in the figure). Further, in the same image 32, a notice that the cumulative lighting time of the lamp unit 3 with ID1 is reset, and a word that accepts the acceptance of reset (OK) and the selection of cancellation are displayed.

  When the user approves the reset, the storage unit 11 resets the cumulative lighting time of the lamp unit 3 with the selected ID (ID1 in this example) (step S5). Further, the control unit 12 drives a heat generation unit (not shown) provided in the lamp unit mounting unit 4 to blow the fuse of the lamp unit 3 with a pattern corresponding to the selected ID (step S6). According to the relationship of FIG. 3, in this example, the fuse F1 is blown in correspondence with ID1, and the other fuses F2 and F3 are kept in a conductive state. The adding unit 16 starts counting the cumulative lighting time that is zeroed by reset (step S9). In addition, the order of step S5 and step S6 is arbitrary, and may be simultaneous.

  When the mounted lamp unit 3 is not unused (step S3, No), the control unit 12 displays an indication that the lamp unit 3 has been replaced with a used lamp unit 3 different from the previously mounted one. To the video processing unit 13. The image projection unit 15 displays by projection that the lamp unit 3 mounted on the lamp unit mounting unit 4 has been switched (step S7).

  FIG. 7 is a diagram illustrating an example of an image displayed by the video projection unit 15 when the lamp unit 3 is replaced with a used lamp unit 3 that is different from the one that was previously mounted. Here, for example, a case where the lamp unit 3 with ID1 whose cumulative lighting time is 100 hours is mounted will be described as an example. The image 33 includes a wording that the lamp unit 3 has been replaced (for example, “Lamp has been replaced” in the figure), the ID of the lamp unit 3 after replacement, and the cumulative lighting time of the lamp unit 3. (For example, “lighting time 100h” in the figure) is displayed.

  The adder 16 switches the ID for counting the cumulative lighting time to ID1 in this example (step S8). The addition unit 16 switches the addition target to the lamp unit 3 having the identifier 22 identified by the lamp unit detection unit 5, and starts counting the cumulative lighting time (step S9). Accordingly, the projector 1 can easily and reliably switch the cumulative lighting time count when the lamp unit 3 mounted on the lamp unit mounting portion 4 is replaced. When the adding unit 16 starts counting the cumulative lighting time, the adding unit 16 continues to add the cumulative lighting time until the lighting of the lamp unit 3 is completed.

  As described above, the projector 1 identifies the plurality of lamp units 3 in the lamp unit detection unit 5 and stores the accumulated lighting time of the plurality of lamp units 3 in the storage unit 11 in association with the identifier 22. Thereby, the user of the projector 1 can easily grasp the cumulative lighting time of each lamp unit 3 used in the projector 1.

  For example, with respect to one projector 1, there is a case where the lamp unit 3 used for daily viewing and the lamp unit 3 used for a special scene such as a presentation are properly used. In this case, by knowing the cumulative lighting time of each lamp unit 3, for example, when a presentation that requires a long projection is performed, the lamp unit 3 that has a short life is mistakenly attached, so It can be easily avoided.

  The projector 1 may automatically assign the ID of the lamp unit 3 in which the lamp burnout has occurred, in addition to entrusting the user to select an ID to be assigned to the unused lamp unit 3. In this case, the storage unit 11 stores the ID of the lamp unit 3 in which the lamp burnout has occurred. When the unused lamp unit 3 is mounted on the lamp unit mounting unit 4, the control unit 12 reads the ID of the lamp unit 3 in which the lamp has run out from the storage unit 11 and assigns it to the unused lamp unit 3. . As a result, the projector 1 can easily switch the cumulative lighting time count from the lamp unit 3 in which the lamp has run out to the unused lamp unit 3.

  In the lamp unit 3, the identifier 22 is not limited to the case where the identifier 22 is represented by a pattern that blows out the three fuses F1, F2, and F3. For example, the identifier 22 may be represented by more fuse patterns. The number of lamp units 3 that can be identified by the identifier 22 is not limited to the example described in the present embodiment, and may be at least plural. Further, the lamp unit 3 may represent the identifier 22 using other elements instead of the fuse. The identifier 22 in the lamp unit 3 may be any element as long as information for identification can be given by some action at the start of use in the projector 1.

  The identification by the identifier 22 is not limited to the case of applying to a plurality of lamp units 3 used for one projector 1, and may be applied to a plurality of lamp units 3 shared by a plurality of projectors 1. The management of the cumulative lighting time of the lamp unit 3 may be performed by one projector 1 or may be commonly performed by a plurality of projectors 1.

  DESCRIPTION OF SYMBOLS 1 Projector, 3 lamp unit, 4 lamp unit mounting part, 5 lamp unit detection part, 6 power supply part, 7 input terminal, 8 input selection part, 9 remote control light-receiving part, 10 key input processing part, 11 memory | storage part, 12 control part , 13 Video processing unit, 14 Video output unit, 15 Video projection unit, 16 Adder unit, 17 Remote control, 21 Lamp, 22 Identifier, 31, 32, 33 Image, F1, F2, F3 Fuse

Claims (8)

A lamp unit;
A lamp unit mounting portion for detachably mounting the lamp unit;
A storage unit for storing a cumulative lighting time by the lamp unit mounted on the lamp unit mounting unit;
An adding unit for adding the cumulative lighting time according to lighting of the lamp unit;
An identification unit for identifying the lamp unit mounted on the lamp unit mounting unit by an identifier assigned to the lamp unit;
The storage unit stores the cumulative lighting time for each lamp unit in association with the identifier,
The projector, wherein the adding unit adds the cumulative lighting time of the lamp unit corresponding to the identifier identified by the identifying unit.   The projector according to claim 1, wherein in the lamp unit, the identifier is expressed as a pattern obtained by fusing a plurality of fuses. An identifier giving unit for giving the identifier to the lamp unit;
When an unused lamp unit is mounted on the lamp unit mounting portion, the identifier giving unit accepts selection of the identifier to be given to the unused lamp unit,
The projector according to claim 1, wherein the storage unit resets the accumulated lighting time stored in association with the selected identifier. An image projection unit for projecting image light;
When the unused lamp unit is mounted on the lamp unit mounting unit, the video projection unit displays a list of the cumulative lighting time stored in the storage unit by projection. The projector according to claim 3. The storage unit stores an identifier of a lamp unit in which a lamp burnout has occurred,
When an unused lamp unit is mounted on the lamp unit mounting unit, the identifier adding unit reads out the identifier of the lamp unit in which the lamp has run out from the storage unit and applies the identifier to the unused lamp unit. The projector according to claim 1, wherein:   When the identification unit identifies an identifier that is different from the identifier of the lamp unit that was last mounted on the lamp unit mounting unit, the addition unit adds the cumulative lighting time to the lamp unit identified by the identification unit. 6. The projector according to claim 1, wherein a target of addition is switched. An image projection unit for projecting image light;
The image projection unit switches the lamp unit mounted on the lamp unit mounting unit when the identification unit identifies an identifier different from the identifier of the lamp unit last mounted on the lamp unit mounting unit. The projector according to claim 6, wherein the effect is displayed by projection. A lamp unit mounting process in which the lamp unit is mounted;
A storage step of storing a cumulative lighting time by the lamp unit mounted in the lamp unit mounting step;
An adding step of adding the cumulative lighting time according to lighting of the lamp unit;
An identification step of identifying the lamp unit mounted in the lamp unit mounting step by an identifier assigned to the lamp unit,
In the storing step, the cumulative lighting time for each lamp unit is stored in correspondence with the identifier,
In the adding step, the cumulative lighting time of the lamp unit corresponding to the identifier identified in the identifying step is added.

Images