JPH06305488A - Light-shielding device and image projection device for aircraft cabin windows - Google Patents

Abstract

(57) [Summary] [Purpose] To automatically adjust the translucency of windows in aircraft cabins and improve the projection quality of video projectors. [Structure] Window 3 provided on side wall 20 of aircraft cabin 1
0 has a function capable of electrically adjusting the light transmittance. Video projector 60 mounted on the ceiling 10
Projects an image on the screen 70. By operating the switch provided in the seat and the control panel provided in the passenger seat, the passenger compartment window is automatically shaded to adjust the brightness in the passenger compartment 1 to facilitate sleeping and improve the projection effect.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding device for electrically controlling the light-shielding degree of windows in aircraft cabins and a device for projecting an image on a cabin screen by a video projector in conjunction with the light-shielding device.

[0002]

2. Description of the Related Art At present, as a light-shielding device for a passenger cabin window of an aircraft, a device such as a curtain or a blind that can be opened and closed manually and whose brightness cannot be adjusted, or two polarizing films are stacked and one of them is manually operated. There are things that can be adjusted in brightness by rotating. However, these shading devices not only bother passengers, but also the crew directly
It was very difficult to do. In addition, when the video is displayed in the cabin, the crew members and passengers operate the light-shielding device, which not only increases the workload of the crew members but also impairs passenger comfort.

[0003]

SUMMARY OF THE INVENTION In view of the above, the present invention provides a device for electrically adjusting the light transmittance in a window of a passenger compartment of an aircraft, and arbitrarily shields light by a switch in the passenger compartment or a control panel of a passenger seat. It is configured to be executed so as to eliminate the above-mentioned inconvenience.

[0004]

In order to solve the above-mentioned problems, the present invention adjusts the brightness by electrically adjusting the light and shade using a liquid crystal panel or an electrochromic panel in a cabin window of an aircraft. And to block light. The dimming switch on the passenger side and the shading adjustment switch on the crew side are mounted separately, and the shading of the window glass is adjusted and the light is shielded through the control device. When the video projector's switch is turned on, the control unit simultaneously blocks the light. In the event of a power failure in an emergency, it will be switched to an emergency storage battery, and the window glass that was shielded from light will become transparent.

[0005]

As described above, the light-shielding device of the present invention allows passengers and crews to easily adjust the lightness and shade. In addition, when the video is shown, the hands of passengers and crew are not bothered. Furthermore, the safety of passengers can be ensured during a power failure in an emergency.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing an outline of the cabin of an aircraft for carrying out the present invention, FIGS. 2 and 3 are sectional views taken along the line AA of FIG. 1, and FIG. 4 is a block diagram of a control device. An aircraft cabin, generally designated by reference numeral 1, is surrounded by a ceiling 10 and side walls 20,
A seat 40 is provided. Guest room is partition 5
It is divided by 0, and a screen 70 is installed in this partition 50 as needed. Ceiling 10 in guest room 1
A projector 60 is stored in the projector and is set to the projection position when used. The image projected from the projector 60 is displayed on the screen 70 and provided to the passenger seated in the seat 40.

When using the projector 60, it is necessary to darken the interior of the passenger compartment 1. Inside the window glass 30 provided on the side wall 20 of the passenger compartment 1, a curtain or blind that is normally openable and closable is usually installed, and it is necessary to manually close the curtain or blind to shield light. If there are passengers on all seats adjacent to the window, the passenger can be requested to operate the curtains and blinds. However, if the seat is vacant or the passenger is sleeping, the flight attendant takes charge of the operation.

The present invention automatically achieves light transmission and light shielding of the window glass. FIG. 2 is an explanatory view of the window glass used in the light shielding device of the first embodiment of the present invention, showing the AA cross section of FIG. The window glass 30 has an electrochromic structure and includes two glass plates 31 facing each other.
The transparent electrode 33 is attached inside the glass plate 31, and the counter electrode 34 is attached inside the other glass plate 32. An amorphous tungsten oxide film 35, for example, is provided as an inorganic material inside the one transparent electrode 33.

Between the tungsten oxide film 35 and the counter electrode 34, propylene carbonate and lithium perchlorate are injected as an electrolytic solution and covered with a seal 38. Counter electrode 3
Tungsten oxide or manganese dioxide is used as 4. Opposing electrodes 33, 34 are lines 100, 1
A switch 110 and a power supply 112 are connected between the lines 100 and 102. When the switch 110 is closed and a voltage is applied, the reduction effect causes the tungsten oxide film 35 to change from transparent to blue. When the voltage application is reversed, the tungsten oxide film 35 returns to transparent due to the oxidizing effect. Utilizing this electrochromic function, light transmission and light shielding of the window glass 30 are electrically controlled.

FIG. 4 shows a control circuit of the window light control device of the present invention. The control device 200 has a main control unit 210, the main control unit 210 is connected to the power source 220 via lines 222 and 224, and also lines 212 and 214.
Is communicated with the video projector 60 via.

The power supplied from the power supply 220 is supplied from the main control unit 210 through lines 252 and 254 to the window glass 30 of the passenger compartment having the electrochromic function. A control panel 230 operated by a crew member is connected to the main control unit 210 via lines 232 and 234.
When the video program is shown, the occupant controls the control panel 23.
By operating 0, a necessary voltage is applied to the window glass 30 to shield light, and the video projector 60 is started. Since the light transmittance of the window glass can be adjusted by the voltage supplied,
The crew adjusts the light transmitted through the window glass by the control panel 230 so that the image on the screen can be seen most easily in accordance with the situation of outside light.

A dimmer switch 240 is also provided on the passenger seat 40.
Is installed and is connected to the main control unit 210 via lines 242 and 244. This dimming switch 240
By using, the passenger of each seat can adjust the light transmittance by adjusting the light transmittance of the window glass 30 beside the seat. The circuit of each windowpane 30 is connected to the emergency storage battery 260 via lines 262 and 264. Electric power from the emergency storage battery 260 applies a voltage to the window glass 30 as if it were transparent. Therefore, even if the power from the main controller is cut off for some reason, the field of view of the window 30 is guaranteed.

FIG. 3 shows a sectional structure of a glass window 300 according to another embodiment of the present invention. The glass window 300 uses liquid crystal to adjust the transmitted light, and has a structure in which transparent electrodes 330 and 340 are attached inside two plate glasses 310 and 320. Liquid crystal molecules 250 and 252 are injected between the transparent electrodes 330 and 340 and sealed with a seal 360. When the transparent electrodes 330 and 340 are connected to the lines 400 and 410 and a voltage is applied through the switch 420 and the power source 430, the attitudes of the liquid crystal molecules 250 and 252 are changed to selectively obtain a light-transmitting state and a light-shielding state. You can By equipping the window glass of the cabin of the aircraft with this liquid crystal device and incorporating it in the control device of FIG. 4, it is possible to arbitrarily adjust the light transmission state of external light into the cabin.

[0014]

As described above, the present invention is provided with a light-shielding device that can be electrically controlled in a cabin window of an aircraft. A switch for operating the light shielding device for the passenger compartment window is provided in both the passenger seat and the crew seat. Therefore, the passenger or the crew member can arbitrarily adjust the light transmitted through the passenger compartment window, and the brightness in the passenger compartment can be adjusted to facilitate sleeping. Further, when a video image is projected by a video projector, the interior of the passenger room can be dimmed to an arbitrary brightness to obtain a high-quality effect. Since it has a backup battery, it is possible to automatically secure the visibility in an emergency.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an outline of a cabin of an aircraft that implements the present invention.

FIG. 2 is a sectional view of a passenger compartment window according to an embodiment of the present invention.

FIG. 3 is a sectional view of a passenger compartment window according to an embodiment of the present invention.

FIG. 4 is a block diagram of a control device.

[Explanation of symbols]

 1 Aircraft guest room 10 Ceiling 30 Guest room window 40 Seat 50 Partition 60 Video projector 70 Screen 210 Main control unit 220 Power supply 230 Crew side control panel 240 Passenger side dimmer switch

Claims (4)

[Claims] 1. A transparent electrode disposed inside a lath plate and a glass plate facing each other, an inorganic material film attached to one transparent electrode, and a transparent electrode and the inorganic material film. A passenger compartment window having an electrochromic structure having an electrolyte to be injected, a main control section for applying a voltage to the electrodes of the passenger compartment window, a power supply for supplying a voltage to the main control section, and a main control section provided in the passenger compartment. A light-shielding device for a cabin window of an aircraft, which includes a dimmer switch connected thereto and a control panel connected to a main control unit provided in a passenger seat. 2. An image projection apparatus for a cabin of an aircraft, comprising: a light-shielding device for a cabin window of the aircraft according to claim 1; a video projector connected to a main control unit; and a screen provided in the cabin. 3. A guest room window having a liquid crystal structure having two glass plates facing each other, a transparent electrode arranged inside the glass plate, and liquid crystal molecules injected between the transparent electrodes; It is connected to the main control unit that applies voltage to the electrodes, the power supply that supplies the voltage to the main control unit, the dimmer switch that is installed in the passenger compartment and that is connected to the main control unit, and the main control unit that is installed in the passenger seat. A light shielding device for aircraft cabin windows with a control panel. 4. A light-shielding device for a cabin window of an aircraft according to claim 3, and a video projector connected to the main control unit,
An image projection device for a cabin of an aircraft, which comprises a screen provided in the cabin.