Digital video recorder

Abstract

Provided is a video recorder autonomously mounted on a windscreen or a glass pane from within of the car. The sidewalls of the housing of the video recorder form an enclosed internal cavity in which a video camera is placed. One sidewall of the video recorder housing is substantially flat thus providing a fastening side for mounting the housing to the windscreen either directly or through a gasket or through a gasket with a firm plate for forming a detachable fixation of the video recorder to the windscreen. The housing fastening side has a window and the gasket and the plate (if present) each has an opening of the same form and arrangement as the window. An optical axis of video camera lens is directed through the internal enclosed cavity to the window such that an external radiation, for example, visible light passing into the cavity and falling to the video camera lens of the video recorder can be acquired by the video camera image sensor for obtaining an image. Such construction allows to avoid hitting of light from stray external light sources into the video camera lens and, thus, to avoid distortion of the received image by light patches from the external sources.

Description

technical field [0001] The present invention relates to a video recording device. In particular, it relates to digital dash cams having features that reduce degradation in the quality of captured video or images due to stray light radiation incident on the camcorder's image sensor. Background technique [0002] Currently, digital driving recorders (car DVRs) have been widely used to monitor and record events happening around the vehicles on which the DVRs are installed. These devices simultaneously record video and audio information about the vehicle's surroundings, whether the vehicle is moving or stationary. The recorded information can be useful in resolving disputes related to road traffic incidents. While dash cams are well known for recording events outside the vehicle, they can also be used to record information in the vehicle's interior environment if properly oriented inside the vehicle. The recorder is equipped with a multi-functional mounting mechanism, so it c...

AI Technical Summary

Problems solved by technology

Therefore, at night, a clear video picture of the environment outside the car cannot be obtained due to such stray light spots

Therefore, it can be concluded that the equipment described above cannot provide the required information records at night

[0010] Also, there is dust and water vapor in the cabin, if they get attached to the camera lens it will degrade the image quality

Therefore, various forms of external influences such as light, dust, fog, etc. will make the dash cam capture invalid images because the images received by the dash cam are distorted

Captured or recorded images are severely distorted by these external influences

Images