JP3093280U - Image display projector - Google Patents

Abstract

(57) [Summary] In an image display projector, an infrared ray emitted when a remote controller is operated from the rear of a device main body can be received by a light receiving portion, and the device main body is remote-controlled from the rear of the device main body. Enables remote operation. SOLUTION: When an image is projected by a projection lens 5, a lens cover 7 is provided with two rotation shafts 17 and 15 provided on an apparatus exterior case 3 side and a lens cover 7 side of a connecting bar 13.
, And retract the lens cover 7 above the projection lens 5. Then, the lens cover 7 is rotated in the direction indicated by the arrow C to reflect the infrared rays 24 emitted when the remote controller 21 is operated from the rear of the apparatus main body 2 and guide the infrared rays 24 to the light receiving unit 6. Hold at the angular position. Thus, the lens cover 7 functions as an infrared reflecting plate, and the light receiving unit 6
Can receive the infrared ray 24 emitted when the remote controller 21 is operated from the rear of the apparatus main body 2.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to an image display projector that projects an image on a screen or the like, and In addition, the present invention relates to a technique that enables remote control operation from the rear of the device body.

[0002]

[Prior art]

  Conventionally, images are generated based on image data from personal computers, video cameras, etc. An image display projector that projects and displays the image on a screen or the like is known. This type of device emits infrared light corresponding to various operation commands to A remote controller for remote control (hereinafter referred to as remote control) and this remote control And a light receiving section for receiving the infrared rays emitted from the light receiving section. It is known that it is arranged on the front surface of the vehicle (for example, Japanese Patent Laid-Open No. 2001-249402). See the bulletin).

[0003]   In addition, in the field of this type of device, inside the outer case that serves as the cover of the device body Some parts are provided with a reflection mirror that constitutes a part of an optical system (for example, Japanese Unexamined Patent Application Publication No. No. 01-272648).

[0004]

[Problems to be solved by the device]

  However, the conventional method as disclosed in Japanese Patent Laid-Open No. 2001-249402 mentioned above This image display projector emits light when the remote control is operated from the rear of the main unit. Infrared rays that are generated cannot be received by the light receiving section that is installed on the front of the device exterior case. Therefore, it is not possible to remotely control the device body from the rear of the device body with the remote controller.

[0005]   Further, it is assumed that the invention disclosed in the above-mentioned JP 2001-272648 A is applied. However, the above problems cannot be solved.

[0006]   The present invention has been made to solve the above-mentioned problems, and it is provided from the rear of the device body. The infrared light emitted when you operate the remote control can be received by the light receiving part. In this way, it is possible to remotely control the device body from the rear of the device body with the remote control. An object is to provide an image display projector.

[0007]

[Means for Solving the Problems]

  In order to achieve the above object, a device of claim 1 is a light source and a light emitted from the light source. A projection lens that projects an image using, and a projection lens that covers the front surface of the projection lens. Protective lens cover that can be opened and closed, and emits infrared light corresponding to various operation commands , A remote controller (hereinafter referred to as a remote controller) for remotely operating the device body, An image display screen including a light-receiving unit that receives infrared rays emitted from the remote controller. Connection for connecting the lens cover to the main body of the projector in a rotatable manner And a device cover case side and a lens cover side of the connecting member are respectively projected. The light receiving portion is rotatably supported around a rotation axis orthogonal to the optical axis of the lens, It is located on the front of the device exterior case and around the projection lens. When the image is projected by the projection lens, it is opened with the two pivots as fulcrums. Infrared light that is emitted when the remote control is operated from the rear of the main unit by retracting upward It is configured so that it can be held at an angular position that reflects light and guides it to the light receiving part. It

[0008]   In the above configuration, the lens cover is connected when the image is projected by the projection lens. Two pivots provided on the device exterior case side and the lens cover side of the member are fulcrums Open and rotate the lens cover and the connecting member around the two rotating shafts to The cover is retracted above the projection lens. And this lens cover Reflects the infrared light emitted when the remote control is operated from the rear of the main unit Hold it in an angular position that leads to. This allows the device to be installed on the front of the outer case. Infrared light emitted by the remote control unit when the remote control is operated from the rear of the main unit Can be received through the lens cover.

[0009]   The invention of claim 2 projects an image using a light source and light emitted from the light source. A projection lens that can be opened and closed to cover the front surface of the projection lens and protect it The lens cover and infrared rays corresponding to various operation commands are emitted to remotely control the device body. From the remote controller to operate (hereinafter referred to as the remote control) and this remote control In an image display projector equipped with a light receiving section for receiving the transmitted infrared rays, The light section is located on the front of the device outer case and around the projection lens, and The bar is opened when the image is projected by the projection lens, and The angular position that reflects the infrared light emitted when operating the projector and guides it to the light receiving part. It is configured so that it can be retained.

[0010]   With this configuration, the lens cover is opened when the image is projected by the projection lens. , This lens cover is emitted when the remote control is operated from the rear of the device. The infrared rays are reflected and are held at an angular position where they are guided to the light receiving part. This allows The same action as above can be obtained.

[0011]   Also, on the surface of the lens cover that reflects infrared rays sent from the remote control, It is desirable that aluminum foil be attached or plated. This allows the remote control Since the reflectance of infrared rays sent from the be able to.

[0012]

[Embodiment of device]

  An image display projector according to an embodiment of the present invention will be described below with reference to the drawings. Explain. 1 and 2 show the case where the lens cover is closed and the case where the lens cover is opened. The external appearance of the image display projector in and is shown. Image display projector 1 (below , Abbreviated as projector) is an image data input from a personal computer or a video camera. This is a device that generates an image based on the data and projects and displays the image on a screen or the like. The The projector 1 includes a lens cover 7 that protects the projection lens 5 and can be opened and closed. Bar 7 (connecting member) for connecting the cover 7 and the apparatus main body 2, and this connection A connecting bar (not shown) that forms a pair with the bar 13 and connects the lens cover 7 and the apparatus main body 2 to each other. -14 (connecting member; see FIG. 3), and the front surface of the lens cover 7. Is provided with a knob 10 for opening and closing the lens cover 7. Also, the exterior A step portion 4 is provided in a portion of the front surface of the case 3 which is covered by the lens cover 7. The projection lens 5 for projecting an image and the projection lens 5 are provided on the step portion 4. A remote controller close to the lens 5 (see FIG. 4; hereinafter referred to as remote controller) And an infrared light receiving portion 6 for receiving a wireless signal from the.

[0013]   The outer case 3 side and the lens cover 7 side of the connecting bars 13 and 14 are respectively It is rotatably supported around a rotation axis orthogonal to the optical axis B of the projection lens 5. Therefore, when projecting an image, the user can operate the knob 10 provided on the front surface of the lens cover 7. By pushing upwards, the connecting bars 13 and 14 are indicated by the arrow A in FIG. The lens cover 7 is opened by rotating in the direction to expose the step 4 on the front surface of the outer case 3. It The left side of the step 4 is used to cool the lamp inside the device body 2. A blow-out port 8 for discharging the discharged air to the outside of the apparatus main body 2 is provided. ing. Also, on the right side surface of the outer case 3 of the device body 2, air for cooling the lamp is provided. A ventilation port 9 for taking in the inside of the apparatus main body 2 is arranged.

[0014]   In addition, in the present embodiment, the user can view the projector 1 from the front of the apparatus body 2. Infrared receiver 6 is installed on the front of exterior case 3 on the assumption that However, not only from the front of the device main body 2 but also from the rear of the device main body 2, There are also times when you want to operate the remote control. The present invention meets such a demand. It

[0015]   Next, the lens cover 7 and the exterior case 3 of the pair of connecting bars 13 and 14 A detailed configuration in the vicinity of the attachment portion to is described with reference to FIG. Lens cover -7 has a pin 15 for engaging with the connecting bar 13 on its right side surface and left side surface, respectively. It has a pin 16 for engaging the connecting bar 14. In addition, in the step portion 4 of the outer case 3, , Pins 17 and 18 for engaging the connecting bars 13 and 14 are provided. Connecting bar 13 and 14, the pin 15 and the pin 16 provided on the lens cover 7 side, respectively. A hole 13a provided on the connecting bar 13 side and a hole 14a provided on the connecting bar 14 side And the pins 17 and 18 provided on the outer case 3 side are fitted into Fit into the hole 13b provided on the side of the bar 13 and the hole 14b provided on the side of the connecting bar 14 By being inserted, the lens cover 7 is connected to the outer case 3. This , The connecting bars 13 and 14 are rotatably attached to the outer case 3, and The lens cover 7 is rotatably held between the connecting bar 13 and the connecting bar 14. The rotating shaft of the connecting member according to claim 1 on the device outer case side is the outer case 3 Corresponding to the pin 17 and the pin 18 provided on the side of the connecting member on the lens cover side. The rotating shaft corresponds to the pin 15 and the pin 16 provided on the lens cover 7 side. . The directions of these rotation axes are all orthogonal to the optical axis B of the projection lens 5. It will be a direction.

[0016]   Next, referring to FIG. 4, after the device main body 2 adopted in the projector 1 A contrivance for remotely operating the apparatus main body 2 by the remote controller 21 will be described. The projector 1 includes infrared rays on the front surface of the outer case 3 and around the projection lens 5. When the remote controller 21 is operated from the rear of the device body 2 because it has the light receiving unit 6. The infrared ray 24 emitted in the direction cannot be directly received. Therefore, this project The lens 1 uses the lens cover 7 as a reflector for the infrared rays 24 sent from the remote controller 21. By using it, light is emitted when the remote control 21 is operated from the rear of the device body 2. To receive the infrared rays 24 that are generated by the infrared ray receiving section 6 arranged on the front surface of the outer case 3. I was able to do it.

[0017]   Specifically, the user covers the lens cover 7 when the image is projected by the projection lens 5. When the knob 10 provided is pulled up, the connecting bars 13 and 14 are moved to the outer case 3 side. With the pins 17 and 18 provided as fulcrums, the pins 17 and 18 rotate in the direction shown by arrow A in the figure. Then, the lens cover 7 is retracted above the projection lens 5. Retracting the lens cover 7 When completed, the user attaches the lens cover 7 to the pins 15, 16 provided on the side surface thereof. With the fulcrum as the fulcrum in the direction shown by the arrow C in the drawing to determine the angle of the lens cover 7. Adjust the lens cover 7 and operate the remote control 21 from the rear of the device body 2. The infrared rays 24 emitted from the remote controller 21 are reflected on the front surface of the outer case 3 It is held at an angular position such that it is guided to the arranged infrared ray receiving portion 6. This allows the exterior The infrared receiver 6 arranged on the front surface of the case 3 is provided on the remote controller 2 from the rear of the device body 2. Infrared light 24 emitted when 1 is operated is passed through the rear surface 7a of the lens cover 7. Since the user can receive the light, the user can operate the remote control 21 from the rear of the device main body 2. The main body 2 can be operated remotely. As mentioned above, this projector 1 is configured so that the user can operate the remote control from the front of the device body 2. It

[0018]   Further, the back surface 7a of the lens cover 7 may be attached with aluminum foil or aluminum foil may be used. It is desirable to perform plating treatment with a metal such as aluminum. This allows the lens cover Since the reflectance of the infrared ray 24 by the back surface 7a of 7 can be increased, Compared to the case where no action is taken, the user can set the device body behind the device body 2. It is possible to remotely control the device main body 2 with the remote controller 21 from a position further away from 2. Will be able to Furthermore, the lens cover 7 itself is made of metal such as aluminum. Alternatively, a resin coating may be applied to the surface 7b of the lens cover 7. This Thereby, the same effect as the above can be obtained.

[0019]   As described above, according to the projector 1 according to the present embodiment, the projection lens 5 is When projecting an image, the lens cover 7 is attached to the outer case 3 of the connecting bars 13 and 14. And the two rotation shafts provided on the lens cover 7 side are opened as fulcrums, and the lens cover 7 and And the connecting bars 13 and 14 are rotated around the above two rotation shafts to move the lens cover 7 Is retracted above the projection lens 5. Then, the lens cover 7 is attached to the device main body. 2 reflects infrared rays 24 emitted when the remote control 21 is operated from behind, It is held at an angular position such that it is guided to the infrared ray receiving portion 6. Thereby, the outer case 3 The infrared receiver 6 arranged on the front of the device operates the remote controller 21 from the rear of the device body 2. Since it can receive the infrared rays 24 that are emitted when One can remotely operate the apparatus main body 2 with the remote controller 21. Also above By using the lens cover 7 as a reflection plate for the infrared rays 24, Infrared dedicated for reflecting infrared rays 24 sent from the rear by the remote controller 21 The number of components can be reduced as compared with the case where the reflection plate is provided.

[0020]   The present invention is not limited to the above embodiment, and various modifications can be made. is there. For example, in the present embodiment, the projection lens 5 and the infrared light receiving unit 6 are provided as an outer case. 3 shows an example in which the present invention is applied to the projector 1 arranged on the front surface of the present invention. The projector to which the application is applied is not limited to this. The present invention may be applied to a projector in which the light section and the outer case are arranged on different surfaces. Yes. In the above embodiment, the lens cover 7 is retracted above the projection lens 5. Although the connecting bars 13 and 14 are used for the outer casing, the outer casing is used without using these members. Provide a guide groove on the base to slide the lens cover up and down, and Slide the cover along this guide groove to move the lens cover upward. You may evacuate. Furthermore, the lens cover can be attached to and detached from the outer case. The lens cover removed from the outer case, and then put the lens cover on the front of the outer case. Above the shadow lens, the red light emitted when the remote control is operated from the rear of the device body. It is configured so that it can be mounted at an angle that reflects an external line and guides it to the infrared light receiving part. It doesn't matter.

[0021]

[Effect of device]

  As described above, according to the first aspect of the invention, the lens cover is provided with two Open the rotating shaft to the fulcrum, retract it upward, and operate the remote control from the rear of the main unit. Can be held at an angular position where it reflects infrared rays emitted at times and guides them to the light receiving part Due to the configuration, the light receiving section arranged on the front surface of the device outer case is Infrared light emitted when operating the remote control from behind is received via the lens cover. Can shine. This allows the remote control of the device from the rear of the device. It can be operated. Also, as described above, the lens cover is used as an infrared reflection plate. Infrared light sent from the rear of the main unit can be The number of parts is reduced compared to the case where a dedicated infrared reflection plate is provided for reflection. You can

[0022]   According to the invention of claim 2, when the image is projected by the projection lens, the lens cover is projected. When the bar is opened and this lens cover is operated with the remote control from the rear of the main unit The infrared rays reflected by the light are reflected and held at an angular position that guides them to the light receiving part. As a result, the same effect as the above can be obtained.

[0023]   Further, according to the invention of claim 3, it is sent from the remote controller in the lens cover. Applying aluminum foil or plating on the surface that reflects infrared rays Thus, the reflectance of infrared rays sent from the remote controller can be increased. By this As a result, the effects described above can be obtained accurately, and the aluminum foil can be attached and Compared to the case where no treatment is applied, it is farther away from the device body in the rear of the device body. The main body of the device can be remotely operated from a remote position with a remote controller.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of an image display projector according to an embodiment of the present invention with a lens cover closed.

FIG. 2 is a perspective view showing an external appearance of the projector with a lens cover opened.

FIG. 3 is a perspective view showing a detailed configuration around a mounting portion of the lens cover and the connecting bar to the outer case in the projector.

FIG. 4 is an explanatory diagram regarding a device for remotely operating the device body with a remote controller from the rear of the device body employed in the projector.

[Explanation of symbols]

1 Image display projector 2 device body 3 exterior case 5 Projection lens 6 Infrared receiver (light receiver) 7 lens cover 13 Connection bar (connection member) 14 Connection bar (connection member) 15 pins (rotating shaft on the lens cover side of the connecting member) 16 pins (rotating shaft on the lens cover side of the connecting member) 17 pins (rotating shaft of the connecting member on the device exterior case side) 18 pins (rotating shaft of the connecting member on the device exterior case side) 21 remote control B optical axis

Claims (3)

[Scope of utility model registration request] 1. A light source, a projection lens for projecting an image using light emitted from the light source, an openable lens cover for covering a front surface of the projection lens to protect the projection lens, and various operations. An image display projector comprising: a remote controller (hereinafter, referred to as a remote controller) that emits infrared rays corresponding to a command and remotely controls the apparatus body; and a light receiving unit that receives infrared rays emitted from the remote controller, wherein the lens A connecting member that rotatably connects the cover to the apparatus main body is provided, and the apparatus outer case side and the lens cover side of the connecting member are respectively provided around a rotation axis orthogonal to the optical axis of the projection lens. The light receiving unit is rotatably supported, and the light receiving unit is disposed on the front surface of the device outer case and around the projection lens, and the lens cover is the projection lens. When the image is projected by the, the two rotation axes are opened as fulcrums and retracted above the projection lens, and infrared rays emitted when the remote controller is operated from behind the device body are reflected to receive the light. An image display projector characterized in that the image display projector is configured so as to be held at an angular position so as to be guided to a portion. 2. A light source, a projection lens for projecting an image using light emitted from the light source, an openable lens cover for covering a front surface of the projection lens to protect the projection lens, and various operations. An image display projector including a remote controller (hereinafter, referred to as a remote controller) that emits infrared rays corresponding to a command and remotely controls the apparatus main body, and a light receiving section that receives the infrared rays sent from the remote controller. Is disposed on the front surface of the device outer case and around the projection lens, and the lens cover is opened when the image is projected by the projection lens, and is emitted when the remote controller is operated from the rear of the device body. An image display projector, which is configured to be able to be held at an angular position where it reflects infrared rays and guides it to the light receiving section. 3. The image according to claim 1, wherein an aluminum foil is attached or plated on the surface of the lens cover on the side that reflects infrared rays sent from the remote controller. Display projector.