JP2009053555A - Projector and control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector securing lighting up an insertion/extraction portion for inserting and extracting a recording medium. <P>SOLUTION: The projector 1 comprises a projector body 2 having an upper housing 21, a DVD player 3 having a lower housing 31, and a light emitting device 4 provided at a nearly center position of the front of the projector 1. The DVD player 3 has a DVD insertion/extraction portion 3 provided at a nearly center part of the front of the lower housing 31. The light emitting device 4 lights up a periphery of the DVD insertion/extraction portion 32 from outside the upper housing 21 and the lower housing 31. Thus by making the light emitting device 4 start lighting, the periphery of the DVD insertion/extraction portion 32 is securely lighted up. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a projector and a control method.

Conventionally, an image projection unit including a light modulation device that modulates light emitted from a light source according to input image information to form image light, and a projection optical device that magnifies and projects the formed image light, 2. Description of the Related Art A projector is known that includes a reproducing unit that reproduces a recording medium such as a DVD (Digital Versatile Disc) and outputs image information. Such a projector has an insertion / extraction section for inserting / extracting a recording medium into / from the reproducing means (see, for example, Patent Document 1).
By the way, since the projector is generally used in a dark room, for example, when the reproduction by the reproduction unit is stopped and the recording medium is replaced, the user has to make the room once the room is not brightened. There is a problem that it is difficult to insert and remove.
On the other hand, in the projector described in Patent Document 1, when reproduction by the reproduction unit is stopped, a guide image having a predetermined luminance is projected and the room can be illuminated, so that the user can insert and remove the recording medium. It becomes easy to do.

JP 2005-94475 A

  However, in the projector described in Patent Document 1, the room is illuminated with image light projected from the projection optical device. In such a case, there is a problem that the vicinity of the insertion / extraction part cannot be sufficiently illuminated.

  The objective of this invention is providing the projector which can illuminate reliably the insertion / extraction part for inserting / extracting a recording medium.

  The projector according to the present invention includes an optical modulation device that modulates light emitted from a light source in accordance with input image information to form image light, and a projection optical device that magnifies and projects the formed image light. A projector having a projection means and a housing for inserting / removing a recording medium and housing the image projection means, wherein the housing includes an illumination means for illuminating the vicinity of the insertion / extraction section. It is characterized by providing.

  According to such a configuration, the housing includes the illuminating unit that illuminates the vicinity of the insertion / extraction part. Therefore, the vicinity of the insertion / extraction part can be reliably illuminated by causing the illumination unit to start illumination. In the present invention, the vicinity means a range in which at least the insertion / extraction part and the disk surface of the recording medium can be visually recognized when the user inserts / extracts the recording medium via the insertion / extraction part.

  In the present invention, a control unit for controlling the projector is provided, and the control unit determines whether or not a recording medium is inserted in the projector, and the insertion determination unit uses the recording medium in the projector. When it is determined that is not inserted, it is preferable to include an illumination control unit that causes the illumination unit to start illumination.

  According to such a configuration, since the control unit includes the insertion determination unit and the illumination control unit, for example, when the user stops the reproduction by the reproduction unit and replaces the recording medium, the user can change the recording medium. When the operation for discharging the recording medium is performed, the insertion determination unit can determine that the recording medium is not inserted in the projector. Then, when the insertion determining unit determines that the recording medium is not inserted in the projector, the illumination control unit causes the illumination unit to start illumination, so that the reproduction by the reproducing unit is stopped and the recording medium is replaced. Even in such cases, the vicinity of the insertion / extraction portion can be reliably illuminated, and the user can easily insert and remove the recording medium.

In the present invention, the control means includes a luminance adjustment unit that adjusts the luminance of the image light emitted from the projection optical device, and the luminance adjustment unit is configured such that a recording medium is inserted into the projector by the insertion determination unit. If it is determined that the brightness has not been reached, it is preferable to start adjusting the luminance.
Here, in the projector housing, when the position of the insertion / extraction unit and the position of the projection optical device are on the same side, the projection optical system is used when the reproduction by the reproduction unit is stopped and the recording medium is replaced. When high-luminance image light is projected from the apparatus, there is a problem that the projected high-luminance image light hits and the user may feel uncomfortable.

However, according to such a configuration, the control unit includes the luminance adjusting unit that starts adjusting the luminance when the insertion determining unit determines that the recording medium is not inserted in the projector. When the user performs an operation to eject the recording medium, such as when stopping the reproduction by the means and replacing the recording medium, adjustment is started to reduce the brightness of the image light emitted from the projection optical device. can do. The brightness of the image light emitted from the projection optical device is adjusted by adjusting the brightness of the emitted light by controlling the light source, or by adjusting the brightness of the image light formed by controlling the light modulation device. You can adjust it.
According to this, even when the reproduction by the reproducing means is stopped and the recording medium is replaced, the high-luminance image light projected from the projection optical device is not hit, so the user can comfortably hold the projector. Can be used.

  In the present invention, the projector includes a control unit that controls the projector, and the control unit starts a luminance adjustment unit that adjusts the luminance of the image light emitted from the projection optical device, and the luminance adjustment unit starts the luminance adjustment. It is preferable to include an adjustment start determination unit that determines whether or not the adjustment has been performed, and an illumination control unit that causes the illumination unit to start illumination when the adjustment start determination unit determines that the adjustment of luminance has started.

Here, for example, when the luminance adjustment unit is configured to reduce the luminance of the image light emitted from the projection optical device in response to an operation input from the user when reproduction by the reproduction unit is stopped, for example. Since the room is darkened in response to an operation input from the user, there is a problem that the user cannot easily insert and remove the recording medium unless the room is once brightened.
However, according to such a configuration, the control unit includes the luminance adjustment unit, the adjustment start determination unit, and the illumination control unit. Therefore, when the luminance adjustment is started by the luminance adjustment unit, the adjustment start determination is performed. The unit can determine that the luminance adjustment has started. When the adjustment start determination unit determines that the luminance adjustment has started, the illumination control unit causes the illumination unit to start the illumination, so that the room becomes dark due to the start of the luminance adjustment. Even so, the vicinity of the insertion / extraction section can be reliably illuminated, and the user can easily insert and remove the recording medium.

In the present invention, it is preferable that the brightness adjusting unit adjusts the brightness of the image light emitted from the projection optical device by controlling the light modulation device.
According to such a configuration, the brightness adjusting unit quickly adjusts the brightness of the image light emitted from the projection optical device as compared with the case of adjusting the brightness of the emitted light by controlling the light source. can do.

In the present invention, it is preferable that the illumination unit stops the illumination by adjusting the luminance gradually over a predetermined time.
Here, for example, when the illumination control unit is configured to stop the illumination by the illumination unit when the adjustment of the luminance of the image light by the luminance adjustment unit is stopped, the luminance of the image light by the luminance adjustment unit is reduced. There is a problem that if the illumination by the illumination means is stopped before the adjustment is stopped, the room will be darkened rapidly.
However, according to such a configuration, the illumination means adjusts the luminance gradually over a predetermined time and stops the illumination, so that the room does not suddenly become dark and the user can comfortably use the projector. can do.

The control method of the present invention includes a light modulator that modulates light emitted from a light source according to input image information to form image light, and a projection optical device that magnifies and projects the formed image light. A projector control method comprising: an image projecting unit; and a housing having an insertion / extraction unit for inserting / extracting a recording medium into / from the projector, and housing the image projecting unit, wherein the recording medium is inserted into the projector An insertion control step for determining whether or not there is a lighting control, and when it is determined in the insertion determination step that a recording medium is not inserted into the projector, an illumination control for illuminating the vicinity of the insertion / extraction unit is started. And executing the step.
According to such a configuration, the same operational effects as those of the projector described above can be obtained.

The control method of the present invention includes a light modulator that modulates light emitted from a light source according to input image information to form image light, and a projection optical device that magnifies and projects the formed image light. A method for controlling a projector, comprising: an image projection unit; and a housing having an insertion / extraction unit for inserting / removing a recording medium into / from the projector, and housing the image projection unit, wherein the image is emitted from the projection optical device An adjustment start determination step for determining whether or not the adjustment of the luminance of light has started, and an illumination means for illuminating the vicinity of the insertion / extraction unit when it is determined that the adjustment of the luminance has been started in the adjustment start determination step An illumination control step for starting illumination is executed.
According to such a configuration, the same operational effects as those of the projector described above can be obtained.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
[Schematic configuration of projector]
FIG. 1 is a perspective view of the projector 1 as seen from the front side.
As shown in FIG. 1, the projector 1 modulates light emitted from a light source according to input image information to form an optical image, and enlarges and projects the formed optical image, and a projector. A DVD player 3 for outputting image information to the main body 2 and a light emitting element 4 provided at a substantially central position on the front surface of the projector 1 are provided. The internal configuration of the projector 1 will be described in detail later.

  As shown in FIG. 1, the projector main body 2 is placed on the upper side of the DVD player 3 and has an upper housing 21 formed in a substantially rectangular parallelepiped shape, and a projection lens 22 exposed on the front surface of the upper housing 21. And an operation panel 23 provided on the rear side of the upper surface of the upper housing 21. The operation panel 23 is operated by the user to output an operation signal to the control means 25 described later, and based on the operation signal, the operation of starting / adjusting the projector 1 and the playback / stop of the DVD player 3 are performed. It is for carrying out such operations. When the operation panel 23 is operated, the DVD player 3 reproduces / stops image information, audio information, and the like recorded on a recording medium such as a DVD inserted into the DVD player 3.

The DVD player 3 reproduces a recording medium such as a DVD and outputs image information recorded on the recording medium to the projector body 2 via an image cable (not shown). The DVD player 3 is configured as a slot-in type. As shown in FIG. 1, the DVD player 3 is disposed on the lower side of the projector main body 2 and has a lower casing 31 formed in a substantially rectangular parallelepiped shape, and a lower casing 31. A DVD insertion / extraction unit 32 provided at a substantially central portion of the front surface and a DVD operation display unit 33 provided below the DVD insertion / extraction unit 32 are provided.
In the present embodiment, the housing of the projector 1 is composed of an upper housing 21 and a lower housing 31.

The DVD insertion / extraction section 32 as an insertion / extraction section is a portion into which a recording medium such as a DVD is inserted / extracted, and the DVD player 3 has image information, audio information, etc. recorded on the recording medium inserted into the DVD insertion / extraction section 32. Play. A discharge switch 32A for discharging the recording medium is attached to the side of the DVD insertion / extraction section 32. The discharge switch 32A will be described in detail later.
The DVD operation display unit 33 is a part for displaying the state of playback / stop of the DVD player 3, and the user confirms the state of playback / stop of the recording medium by looking at the DVD operation display unit 33. be able to.

The light emitting element 4 as an illuminating means is composed of, for example, a high-intensity light emitting diode, and illuminates the vicinity of the DVD insertion / extraction section 32 from the outside of the upper housing 21 and the lower housing 31. The light emitting element 4 is lit to illuminate a range in which at least the DVD insertion / extraction section 32 and the disk surface of the recording medium can be visually recognized when the user inserts / removes the recording medium via the DVD insertion / extraction section 32. Brightness.
In addition, the light emitting element 4 includes a light control circuit (not shown) connected to the control means 25 described later. The dimming circuit is a circuit for turning on or off the light emitting element 4 based on a control signal from the control means 25. When the light emitting element 4 is turned on or off, the luminance of the light emitting element 4 is set for a predetermined time. Adjust gradually over time. Therefore, the light emitting element 4 gradually adjusts the luminance over a predetermined time to start or stop the illumination.

[Internal configuration of projector]
FIG. 2 is a block diagram showing the internal configuration of the projector 1.
As shown in FIG. 2, the projector main body 2 includes an image projecting unit 24 and a control unit 25.
The image projection unit 24 modulates light emitted from the light source according to image information to form image light, and enlarges and projects the formed image light toward the screen Sc. 21. The image projection unit 24 includes a light source lamp 241, a liquid crystal panel 242, and the projection lens 22 described above.

A light source lamp 241 as a light source is configured by a high-pressure discharge lamp, and emits light toward the liquid crystal panel 242. Instead of the light source lamp 241, various self-luminous elements such as a light emitting diode, a laser diode, and an organic EL element may be used as the light source.
A liquid crystal panel 242 serving as a light modulation device is a transmissive liquid crystal panel, and changes the arrangement of liquid crystal molecules enclosed in a liquid crystal cell (not shown) based on image information, and emits light emitted from a light source lamp 241. Is transmitted or blocked so as to be modulated in accordance with image information to form image light, and this image light is emitted to the projection lens 22.

The projection lens 22 as a projection optical device is configured as a combined lens in which a plurality of lenses are housed in a cylindrical barrel (not shown), and the image light emitted from the liquid crystal panel 242 is enlarged toward the screen Sc. Projected. An image based on the emitted image light is displayed on the screen Sc.
Although not shown, the projector main body 2 includes a color light separation optical device that separates light emitted from the light source lamp 241 into three colors of RGB (Red Green Blue). The liquid crystal panel 242 described above is provided corresponding to the three colors RGB separated by the color light separation optical device. Further, the projector main body 2 includes a combining optical device that generates image light representing a color image by combining three color image lights.

The control unit 25 includes, for example, a CPU (Central Processing Unit) and controls the projector 1 as a whole. The control unit 25 includes an insertion determination unit 251, an illumination control unit 252, and a brightness adjustment unit 253.
The insertion determination unit 251 determines whether or not a recording medium is inserted into the DVD insertion / extraction unit 32.
If the insertion determination unit 251 determines that the recording medium is not inserted into the DVD insertion / extraction unit 32, the illumination control unit 252 turns on the light emitting element 4 to start illumination.
The luminance adjustment unit 253 adjusts the luminance of the image light emitted from the projection lens 22. If the insertion determination unit 251 determines that the recording medium is not inserted into the DVD insertion / extraction unit 32, the luminance adjustment unit 253 adjusts the luminance of the image light emitted from the projection lens 22. Start adjustment.

The DVD player 3 includes the discharge switch 32A and the DVD detection switch 34 described above.
The eject switch 32A is a switch for causing the DVD player 3 to start ejecting the recording medium when pressed, and when the eject switch 32A is pressed, the DVD player 3 is stored in the recording medium contained therein. To the outside.
The DVD detection switch 34 is a mechanical switch provided inside the DVD insertion / extraction section 32 and detects whether a recording medium is inserted into the DVD insertion / extraction section 32.
The discharge switch 32A and the DVD detection switch 34 are controlled by the control means 25. The discharge switch 32A has information indicating that the press has been pressed, and the DVD detection switch 34 has information indicating whether or not the recording medium has been detected. Output to the control means 25.

[Projector control processing]
FIG. 3 is a flowchart showing the control process of the projector 1.
When the power is turned on by operating the operation panel 23 or when the discharge switch 32A is pressed, the projector 1 executes the following control process.
First, the insertion determination unit 251 determines whether or not a recording medium is inserted in the DVD insertion / extraction unit 32 by acquiring information output from the DVD detection switch 34 (step S1: insertion determination step).

When it is determined whether or not the recording medium is inserted into the DVD insertion / extraction unit 32 in the insertion determination step S1, the illumination control unit 252 turns on or off the light emitting element 4 based on the determination result by the insertion determination unit 251. (Step S2: Illumination control step).
Specifically, if the insertion determination unit 251 determines that the recording medium is not inserted into the DVD insertion / extraction unit 32, the illumination control unit 252 turns on the light emitting element 4 to start illumination (step S21: illumination). Start step). Further, when the insertion determination unit 251 determines that the recording medium is inserted into the DVD insertion / extraction unit 32, the illumination control unit 252 turns off the light emitting element 4 and stops the illumination (step S22: illumination stop step). ).

When the light emitting element 4 is controlled in the illumination control step S2, the luminance adjusting unit 253 adjusts the luminance of the light emitted from the projection lens 22 (step S3: luminance adjusting step).
Specifically, when the illumination start step S21 is performed in the illumination control step S2, that is, when the insertion determination unit 251 determines that the recording medium is not inserted into the DVD insertion / extraction unit 32, the luminance adjustment unit 253. Starts adjustment to lower the luminance of the image light emitted from the projection lens 22 (step S31: luminance adjustment start step). When the luminance adjustment is started in the luminance adjustment start step S31, the control means 25 executes the insertion determination step S1 again.

Further, when the illumination stop step S22 is executed in the illumination control step S2, that is, the luminance adjusting unit 253 determines that the recording medium is inserted in the DVD inserting / extracting unit 32 by the insertion determining unit 251. The brightness adjustment is stopped (step S32: brightness adjustment stop step). Thereby, the projector 1 enlarges and projects the image light formed according to the image information toward the screen Sc. When the luminance adjustment is stopped in the luminance adjustment stop step S32, the control means 25 ends the control process.
By executing the above steps S1 to S3, the control process of the projector 1 is executed.

The projector 1 according to the present embodiment has the following effects.
(1) Since the housing of the projector 1 includes the light emitting element 4 that illuminates the vicinity of the DVD inserting / extracting portion 32, the vicinity of the DVD inserting / extracting portion 32 can be reliably illuminated by causing the light emitting element 4 to start illumination. it can.
(2) Since the control unit 25 includes the insertion determination unit 251 and the illumination control unit 252, the vicinity of the DVD insertion / extraction unit 32 can be used even when the reproduction by the DVD player 3 is stopped and the recording medium is replaced. Illumination can be ensured, and the user can easily insert and remove the recording medium.

(3) Since the control means 25 includes the luminance adjusting unit 253 that starts adjusting the luminance when the insertion determining unit 251 determines that the recording medium is not inserted into the DVD inserting / extracting unit 32, the control unit 25 uses the DVD player 3. Even when the reproduction is stopped and the recording medium is replaced, the user can comfortably use the projector 1 because the high-luminance image light projected from the projection lens 22 is not applied.
(4) Since the brightness adjusting unit 253 controls the liquid crystal panel 242 to adjust the brightness of the image light emitted from the projection lens 22, it can quickly adjust the brightness of the image light emitted from the projection lens 22. Can do.
(5) Since the light emitting element 4 gradually adjusts the luminance over a predetermined time and stops the illumination, the room does not become dark suddenly, and the user can comfortably use the projector.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.
FIG. 4 is a block diagram showing the internal configuration of the projector 1A.
In the following description, parts that have already been described are assigned the same reference numerals and description thereof is omitted.
In the projector 1 according to the first embodiment, when the insertion determination unit 251 determines that the recording medium is not inserted into the DVD insertion / extraction unit 32, the illumination control unit 252 turns on the light emitting element 4 to perform illumination. I was starting. In contrast, in the projector 1A according to the present embodiment, the illumination control unit 252A emits light when the adjustment start determination unit 254 determines that the adjustment of the luminance of the image light emitted from the projection lens 22 has started. The difference is that lighting is started by turning on the element.

As shown in FIG. 4, the projector 1A includes a control unit 25A, and the control unit 25A includes a luminance adjustment unit 253A, an adjustment start determination unit 254, and an illumination control unit 252A.
The luminance adjustment unit 253A adjusts the luminance of the image light emitted from the projection lens 22 in accordance with an operation input from the user. In the present embodiment, the brightness adjusting unit 253A starts adjusting the brightness of the image light when the DVD player 3 stops playback in response to an operation input from the user, and starts playback. The adjustment of the luminance of the image light is stopped.
The adjustment start determination unit 254 determines whether or not the luminance adjustment unit 253 has started luminance adjustment.
If it is determined by the adjustment start determination unit 254 that the luminance adjustment has been started, the illumination control unit 252A turns on the light emitting element 4 to start illumination.

FIG. 5 is a flowchart showing the control process of the projector 1A.
When the power is turned on by operating the operation panel 23, the projector 1A executes the following control process.
First, the adjustment start determination unit 254 determines whether or not luminance adjustment is started by the luminance adjustment unit 253A (step S11: adjustment start determination step).
Specifically, the luminance adjustment unit 253A starts adjusting the luminance of the image light when the DVD player 3 stops reproduction in response to an operation input from the user. In this case, the adjustment start determination unit In step S254, it is determined that the luminance adjustment has been started. Also, the luminance adjustment unit 253A stops adjusting the luminance of the image light when the DVD player 3 starts reproduction in response to an operation input from the user. In this case, the adjustment start determination unit 254 Then, it is determined that the brightness adjustment has been stopped.

When it is determined whether or not the luminance adjustment is started in the adjustment start determination step S11, the illumination control unit 252A turns on or off the light emitting element 4 based on the determination result by the adjustment start determination unit 254 (step S12: Lighting control step).
Specifically, when it is determined by the adjustment start determination unit 254 that the adjustment of luminance has started, the illumination control unit 252A turns on the light emitting element 4 and starts illumination (step S121: illumination start step). And if illumination is started in illumination start step S121, 25 A of control means will perform adjustment start determination step S11 again. In addition, when the adjustment start determination unit 254 determines that the luminance adjustment has been stopped, the illumination control unit 252A turns off the light emitting element 4 and stops the illumination (step S122: illumination stop step). And if illumination is stopped in illumination stop step S122, 25 A of control means will complete | finish control processing.
By executing the above steps S11 to S12, the control process of the projector 1A is executed.

In this embodiment as well, the same operational effects as (1), (4), and (5) in the first embodiment can be achieved, and the following operational effects can be achieved.
(6) Since the control unit 25A includes the luminance adjustment unit 253A, the adjustment start determination unit 254, and the illumination control unit 252A, even if the room becomes dark due to the start of luminance adjustment. The vicinity of the DVD insertion / extraction section 32 can be reliably illuminated, and the user can easily insert and remove the recording medium.

[Modification of Embodiment]
It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
In each of the embodiments described above, the projectors 1 and 1A start lighting by the light emitting element 4 based on the determination result by the insertion determination unit 251 or the adjustment start determination unit 254. For example, based on an operation input from the user It may be configured to start illumination by the illumination means, or may be configured to always illuminate. Further, in each of the above embodiments, the light emitting element 4 gradually adjusts the luminance over a predetermined time and starts or stops the illumination. However, the light emitting element 4 may be adjusted quickly. In short, the projector may be provided with illumination means in the vicinity of the insertion / extraction unit.

In each of the embodiments described above, the luminance adjusting units 253 and 253A adjust the luminance of the image light emitted from the projection lens 22 by controlling the liquid crystal panel 242, but for example, the light emitted from the light source lamp 241 The brightness of the image light emitted from the projection lens 22 may be adjusted by adjusting the brightness of.
In the first embodiment, when the insertion determining unit 251 determines that the recording medium is not inserted into the DVD inserting / extracting unit 32, the luminance adjusting unit 253 that starts adjusting the luminance is provided. When the position of the insertion / extraction unit and the position of the projection optical device are opposite to each other in the case, the brightness adjustment unit may not be provided.

In each of the embodiments described above, the DVD player 3 is configured as a slot-in type, but may be configured as a tray type, for example. In short, the projector only needs to include a housing having an insertion / extraction section for inserting / removing the recording medium.
In each of the above embodiments, the transmissive liquid crystal panel 242 is employed. However, the present invention is not limited to this, and a reflective liquid crystal panel may be employed, or a digital micromirror device (DMD) may be employed. Good. DMD is a trademark of Texas Instruments Incorporated.

  The present invention can be used for a projector, and in particular, can be suitably used for a projector having an insertion / extraction section for inserting / removing a recording medium.

The perspective view which looked at the projector in a 1st embodiment from the front side. The block diagram which shows the internal structure of the projector in the said embodiment. 7 is a flowchart showing projector control processing in the embodiment. The block diagram which shows the internal structure of the projector in 2nd Embodiment. 7 is a flowchart showing projector control processing in the embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,1A ... Projector, 4 ... Light emitting element (illuminating means), 21 ... Upper side housing | casing (housing | casing), 22 ... Projection lens (projection optical apparatus), 24 ... Image projection means, 25, 25A ... Control means, 31 ... Lower housing (housing), 32 ... DVD insertion / extraction section (insertion / extraction section), 241 ... Light source lamp (light source), 242 ... Liquid crystal panel (light modulation device), 251 ... Insertion determination section, 252, 252A ... Illumination control Part, 253, 253A ... brightness adjustment part, 254 ... adjustment start determination part, S1 ... insertion determination step, S11 ... adjustment start determination step, S12, S2 ... illumination control step, S3 ... brightness adjustment step.

Claims (8)

An image projecting unit having a light modulation device that modulates light emitted from a light source according to input image information to form image light, a projection optical device that magnifies and projects the formed image light, and a recording medium A projector having an insertion / extraction section for inserting / extracting the image projection means, and a housing that houses the image projection means,
The housing is
A projector comprising illumination means for illuminating the vicinity of the insertion / extraction section. The projector according to claim 1, wherein
Control means for controlling the projector,
The control means includes
An insertion determination unit for determining whether a recording medium is inserted in the projector;
A projector comprising: an illumination control unit that causes the illumination unit to start illumination when the insertion determination unit determines that a recording medium is not inserted into the projector. The projector according to claim 2,
The control means includes
A luminance adjustment unit for adjusting the luminance of image light emitted from the projection optical device;
The brightness adjusting unit starts brightness adjustment when the insertion determining unit determines that a recording medium is not inserted in the projector. The projector according to claim 1, wherein
Control means for controlling the projector,
The control means includes
A brightness adjusting unit for adjusting the brightness of image light emitted from the projection optical device;
An adjustment start determination unit that determines whether or not luminance adjustment is started in the luminance adjustment unit;
A projector comprising: an illumination control unit that causes the illumination unit to start illumination when it is determined by the adjustment start determination unit that luminance adjustment has started. In the projector according to claim 3 or 4,
The brightness adjusting unit adjusts the brightness of image light emitted from the projection optical device by controlling the light modulation device. The projector according to any one of claims 3 to 5,
The projector is characterized in that the illumination means adjusts the luminance gradually over a predetermined time and stops the illumination. An image projection unit including a light modulation device that modulates light emitted from a light source according to input image information to form image light, a projection optical device that magnifies and projects the formed image light, and the projector A control method for a projector having an insertion / extraction section for inserting / removing a recording medium to / from the housing and housing the image projection means,
An insertion determination step for determining whether or not a recording medium is inserted in the projector;
And performing an illumination control step of starting illumination with illumination means for illuminating the vicinity of the insertion / extraction section when it is determined in the insertion determination step that a recording medium is not inserted into the projector. Method. An image projection unit including a light modulation device that modulates light emitted from a light source according to input image information to form image light, a projection optical device that magnifies and projects the formed image light, and the projector A control method for a projector having an insertion / extraction section for inserting / removing a recording medium to / from the housing and housing the image projection means,
An adjustment start determination step for determining whether or not the adjustment of the luminance of the image light emitted from the projection optical device is started;
When it is determined that the adjustment of luminance has been started in the adjustment start determination step, an illumination control step of starting illumination by an illumination unit that illuminates the vicinity of the insertion / extraction unit is performed.

Images