JP2002072354A - Projector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive projector device which facilitates focusing and zooming without requiring large system constitution or troublesome adjustment. SOLUTION: This projector device has its projection lens 7 equipped with a projector main body 2 having a zooming and/or focusing function and a remote controller 1 for operation; and the remote controller 1 has a display part 11 and keys 12, 17 and 18 for setting a screen size input mode and a projection distance input mode, and the screen size value and/or projection distance value set with the keys is sent to the projector main body 2 to control the zooming and/or focusing of the projection lens 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projector for projecting an image on a screen and reproducing the image, and more particularly to a projector for setting projection conditions by a remote device.

[0002]

2. Description of the Related Art Zoom / focus adjustment of a projector device can be easily performed when the distance to a screen is relatively short, but when the distance is long, it is troublesome such as repeated adjustment. To cope with this, an auto zoom / auto focus system has been proposed.

As this type of adjusting device, for example, Japanese Patent Laid-Open No.
JP-A-127137, a screen for displaying an image, a distance measuring unit for measuring a distance between the screen and the autofocus projector, and a projection lens unit for executing a focusing operation based on a measurement result of the distance measuring unit. , A distance measurement unit, and a control unit that controls the projection lens unit. The control unit projects the image to be focused on the screen by operating the distance measurement unit and the projection lens unit. The lens section is controlled. As a distance measuring method, an infrared method or an ultrasonic method of emitting an infrared ray or an ultrasonic wave to a screen, inputting its reflection, measuring the intensity or time thereof, and measuring the distance is employed.

In Japanese Patent Application Laid-Open No. 2000-28901, an adjustment image pattern projected on a screen is photographed by a CCD camera or the like, and is again input from an input circuit.
The frequency components of the input adjustment image pattern and the adjustment adjustment image pattern before projection are compared, and the projection lens is driven by an electric motor until a predetermined high frequency component is formed. It is proposed to do.

[0005]

However, in the system of the prior art, there is a problem that the equipment configuration becomes large and the manufacturing cost becomes expensive. Such a projector device is not as large as an automatic setting system, and a setting method that does not require repeated adjustment by manual operation and is easy to operate is desired.

The present invention has been made in view of such circumstances, and provides a projector device which can easily set the focus / zoom of the projector device without requiring a large system or troublesome adjustment. The purpose is to:

[0007]

According to the present invention, there is provided a projector apparatus having a projector main body having a zooming and / or focusing function on a projection lens, and a remote operating apparatus for operating the projector main body. The projection screen size value and / or the projection distance value set by the operator are transmitted to the projector main body, and the projector main body sets the zoom and / or focus of the projection lens of the projector based on the transmitted values. It is characterized by the following.

In the projector device according to the present invention, the remote controller includes a display unit for displaying at least a set projection screen size value and / or a projection distance value, a numeric keypad, and a projector power key. It is characterized by having keys for setting a projection distance input mode, an input value determination and an input redo function.

According to the projector device of the present invention, by pressing a projector power key of the remote operation device, a screen size value and / or a projection distance value set by the remote operation device are simultaneously transmitted together with a projector power ON signal. It is characterized by.

In the projector device according to the present invention, the remote operation device has a timer function, and when a power key on a remote control is pressed, a screen size value and / or a projection distance value set within a specific elapsed time. Is transmitted together with the ON signal of the projector power supply.

The present invention is characterized in that the display content of the display unit of the remote operation device is displayed so that a difference can be recognized before and after the screen size value and / or the projection distance value is transmitted. I do.

According to the projector device of the present invention, the remote operation device has a screen size key or a projection distance key of a remote controller, and when these keys are pressed, the screen size value or the projection distance value is displayed for a predetermined time. Features.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the projector of the present invention will be described in detail with reference to the drawings. FIG.
FIG. 3 is a block diagram of a part for controlling a projection lens of the projector device of the present embodiment. In FIG. 1, reference numeral 1 denotes an operation remote controller (remote operation device), 2 denotes a projector main body, a remote control light receiving unit 3, a CPU 4 for controlling the entire projector system, a zoom lens drive control unit 5, a focus lens drive control unit. 6, projection lens unit 7,
And a memory 8.

The memory 8 stores a zoom lens drive control device and a focus lens drive control value in various combinations of a distance to a screen (not shown) and a display area on the screen.

FIG. 2 is a detailed view of the remote controller 1.
In FIG. 1, a remote control 1 includes a remote control light emitting unit 10, a display unit 11 such as a liquid crystal display, a numeric keypad 12, a power key 13, an enter key 14, a return key 15, a transmission key 1
6, a screen size key 17 and a projection distance key 18.

Next, the installation adjustment operation of the projector device will be described. As the adjustment method, only the projection distance to the screen or only the screen size can be set. In this embodiment, a case where both the projection distance and the screen size are set simultaneously will be described. .

When the user presses the power key 13 of the remote control 1 to turn on the power of the projector 2,
The screen size key 17 is pressed while looking at the liquid crystal display section 11 of FIG. By pressing the surface size key 17, the remote controller 1 enters a screen size input mode, and the user inputs a screen size (not shown) or a size of an area to be displayed on the screen. This input method is input by operating the ten keys 12 on the remote controller 1, and the input value is displayed on the liquid crystal display unit 11. If the entered value is to be determined, the enter key 14 must be pressed. If the entered value has been entered incorrectly, use the return key 15 and enter the correct value again using the numeric keypad 12. Can be.

After the screen size is determined, a projection distance is set. By pressing the projection distance key 18, the remote controller 1 enters the projection distance input mode, similarly inputs the distance to the screen using the numeric keypad 12, and determines the projection distance with the enter key 14.

The transmission key 16 is a key for transmitting the data of the screen size and the projection distance determined by the remote controller 1 to the projector main body 2.
, When the power of the projector body 2 is not turned on, such as at the time of initial installation, or when the power of the projector body 2 is not turned on, and the power key 1
Only when the screen size and / or the projection distance is set within a specific time before the operation of Step 3, the power of the projector 2 is input by pressing the power key 13, and then the remote control 1 determines the power. The automatic setting of the lens unit 7 is performed based on the data of the screen size and / or the projection distance.

As an operation of the projector main body 2, data transmitted from the remote control light emitting unit 10 of the remote control 1 is received by the remote control light receiving unit 3 and demodulated by the CPU 4. The CPU 4 reads the zoom lens drive control value and the focus lens drive control value at the time of the combination data from the memory 8 based on the combination of the received screen size and projection distance data, controls the zoom lens drive control unit 5, and controls the projection lens. By moving the zoom lens of the unit 7 to the optimum position and controlling the focus lens drive control unit 6, the focus lens of the projection lens unit 7 is moved to the optimum position, and the setting adjustment ends.

The above operation is repeated, but the projector 2
By pressing the transmission key 16 of the remote controller 1 while the power is turned on, the screen size value and the projection distance value set in the remote controller 1 can be reset. In the above operation, the operation of storing the zoom lens drive control value and the focus lens drive control value in various combinations of the distance to the screen and the display area on the screen in the memory 8 has been described. The distance to the screen, the display area on the screen, the function of the zoom lens drive control value and the function of the focus lens drive control value are set in advance, and processed in the CPU 4, and the zoom lens drive control value and the focus lens drive control value are set. By outputting, it is also possible to perform without the memory 8.

The display contents of the display unit 11 of the remote controller 1 may be changed, for example, by changing the display character color or changing the display background before and after the transmission of the screen size and / or the projection distance value. By changing the color, flashing the display characters, or putting a display of "sent", the current work state can be displayed to the user in an easy-to-understand manner, and accurate adjustment work can be performed.

Further, by pressing the screen size key 17 or the projection distance key 18 of the remote controller 1, a timer function is provided so that the screen size setting value or the projection distance setting value is displayed for a predetermined time, respectively. It is possible to reliably confirm the conditions.

[0024]

As described above, according to the present invention, the screen size value and / or the projection distance value set on the display unit of the remote controller are transmitted, and the zoom and / or focus of the projection lens is controlled. As a result, the projector is not as large as an automatic setting system with a built-in measuring device or camera, and does not require repeated adjustments by manual operation and can be easily set, and the projector configuration can be simplified and the manufacturing cost can be reduced. can get.

By pressing the power key on the remote controller,
Since the screen size value and / or the projection distance value set on the display unit of the remote controller are transmitted simultaneously with the ON signal of the projector power supply, the initial setting adjustment of the projector can be performed more easily.

The display contents of the remote control display unit are displayed before and after the screen size and / or the projection distance value are transmitted.
Since the difference is displayed so as to be recognized, an accurate adjustment work can be performed visually.

Further, by pressing the screen size key or the projection distance key of the remote controller, the screen size set value or the projection distance set value is displayed for a predetermined time, respectively.
It is possible to quickly check the current setting conditions.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a projector device of the present invention.

FIG. 2 is a detailed view of a remote controller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Remote control 2 Projector main body 3 Remote control light receiving part 4 CPU 5 Zoom lens drive control part 6 Focus lens drive control part 7 Projection lens part 8 Memory 11 Display part 12 Numeric keys 13 Power key 16 Send key 17 Screen size key 18 Projection distance key

Claims (6)

[Claims] 1. A projector device comprising: a projector main body having a zoom and / or focus function in a projection lens; and a remote operation device for operating the projector main body, wherein the remote operation device is a projection screen set by an operator. A projector device comprising: transmitting a size value and / or a projection distance value to a projector main body; and setting the zoom and / or focus of a projection lens of the projector based on the transmitted value. 2. The remote operation device has a display unit for displaying at least a set projection screen size value and / or projection distance value, a numeric keypad, a projector power key, a screen size input mode, a projection distance input 2. The projector device according to claim 1, further comprising a key for setting a mode, an input value determination, and an input redo function. 3. A screen size value and / or a projection distance value set by the remote operation device are simultaneously transmitted together with a projector power ON signal by pressing a projector power key of the remote operation device. Item 3. The projector device according to item 1 or 2. 4. The remote control device has a timer function, and when a power key on a remote control is pressed, only a screen size value and / or a projection distance value set within a specific elapsed time is displayed on a projector power supply. The projector device according to claim 1, wherein the projector device transmits the signal together with an ON signal. 5. The display content of the display unit of the remote operation device is displayed so that a difference can be recognized before and after transmission of a screen size value and / or a projection distance value. Item 5. The projector according to any one of Items 2 to 4. 6. The remote control device according to claim 1, further comprising a screen size key or a projection distance key of a remote controller, and pressing the keys to display a screen size value or a projection distance value for a predetermined time. 6. The projector device according to any one of 2 to 5.