Night viewing device for vehicle

Abstract

This device is provided with a high beam bulb 11 for projecting visible light and infrared rays, a low beam bulb 12 for projecting visible light, a head up display 30 for displaying images photographed by a noctovision camera 20, and a visible light shielding filter 13 switched and moved to a first position for covering the high beam bulb 11 and a second position separated from the high beam bulb11. When a noctovision starting switch 51 is ON-operated, both of the bulbs 11 and 12 are turned on, the filter 13 is moved to the first position, and the head up display 30 is operated to display the images in the device. When the filter 13 is at the second position and the low beam bulb 12 is turned off, moving of the filter 13 from the second position to the first position is inhibited, even when the noctovision starting switch 51 is ON-operated.

Description

technical field [0001] The invention relates to a night vision device for vehicles. Background technique [0002] In the past, when the vehicle was driving at night, the driver could not see clearly the dark place in front of the vehicle, which became the cause of traffic accidents. Therefore, in recent years, the following night vision devices for vehicles have been proposed that assist the vision of nighttime drivers and ensure safe driving. [0003] That is, the night vision device has an infrared spotlight and an infrared camera, and by using the camera to sensitize the infrared light reflected by the object in front of the vehicle among the infrared rays irradiated from the spotlight to the front of the vehicle, an image of the front of the vehicle is taken, and displayed on the display device. display the image on . [0004] For this night vision device, Patent Document 1 proposes to adopt a spotlight that not only emits visible light but also emits light containing ...

AI Technical Summary

Problems solved by technology

[0009] However, in the night vision device described in the above-mentioned patent document 1, because the night vision device is started simply by turning on the start switch, the light filter moves to the first position, so that the Therefore, when the start switch is turned on when the spotlights for passing vehicles are turned off, not only the spotlights for passing vehicles but also the spotlights for driving will not emit visible light.

Therefore, it becomes a night driving using a night vision device in a state where there is no visible light illumination, thereby hindering the guarantee of safe operation

[0010] In addition, when the night vision device is started simply by turning on the starter switch as described above, if the starter switch is turned on when the running spotlight is turned on, the The vision is blocked, so that the driver is driving at night in an undesired lighting state, which prevents safe operation

[0011] Also, although it is not specifically described in the above-mentioned Patent Document 1, when the night vision device is stopped by turning off the starter switch, if the filter is simply moved to the second position and used for driving When the spotlight is turned off, before the spotlight for driving is turned off, the filter moves away from the first position and emits visible light from the spotlight for driving, so that the driver may drive at night in an undesired lighting state, hindering safe operation

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