Document ID: chunk:federal_register_of_legislation:F2024C00147:body:0:p7
Version: federal_register_of_legislation:F2024C00147
Segment Type: other
Provision Reference: 
Character Range: 21880–24976

rear-view mirror", giving the field of vision defined in paragraph 15.2.4.1. of this Regulation;

       (b) Classes II and III: "Main exterior rear-view mirror", giving the fields of vision defined in paragraphs 15.2.4.2. and 15.2.4.3. of this Regulation;

       (c) Class IV: "Wide-angle exterior mirror", giving the field of vision defined in paragraph 15.2.4.4. of this Regulation;

       (d)Class V: "Close-proximity exterior mirror", giving the field of vision defined in paragraph 15.2.4.5. of this Regulation;

       (e) Class VI: "Front mirror", giving the field of vision defined in paragraph 15.2.4.6. of this Regulation;

       (f) Class VII: Mirrors intended for L category vehicles with bodywork, giving the field of vision defined in paragraph 15.2.4.7. of this Regulation.

       2.1.2. "Camera-monitor device for indirect vision" means a device as defined in paragraph 2.1., where the field of vision is obtained by means of a camera-monitor combination as defined in paragraphs 2.1.2.1. and 2.1.2.2. below.

       2.1.2.1. "Camera" means a device that renders an image of the outside world and then converts this image into a signal (e.g. video signal).

       2.1.2.2. "Monitor" means a device that converts a signal into images that are rendered into the visual spectrum.

       2.1.2.3. "Detection" means the ability to distinguish an object from its background/surroundings at certain distance.

       2.1.2.4. "Luminance contrast" means the brightness ratio between an object and its immediate background/surrounding that allows the object to be distinguished from its background/surroundings.

       2.1.2.5. "Resolution" means the smallest detail that can be discerned with a perceptual system, i.e. perceived as separate from the larger whole. The resolution of the human eye is indicated as "visual acuity".

       2.1.2.6. "Critical object" means a cylindrical object with a height of 0.50 m and a diameter of 0.30 m.

       2.1.2.7. "Critical perception" means the level of perception that can just be obtained under critical conditions via the viewing system used. This corresponds to the situation in which the representative scale of the critical object is multiple times larger than the smallest detail that can be perceived via the viewing system.

       2.1.2.8. "Field of vision" means the section of the tri-dimensional space which is monitored with the help of a device for indirect vision. Unless otherwise stated, this is based on the view on ground level offered by a device and/or devices other than mirrors. This may be limited by the relevant detection distance corresponding to the critical object.

       2.1.2.9. "Detection distance" means the distance measured from the centre of the lens of the camera to the point at which a critical object can just be perceived (as defined by the critical perception).

       2.1.2.10. (Reserved)

       2.1.2.11. (Reserved)

       2.1.2.12. "Visual spectrum" means light with a wavelength within the range of the perceptual limits of the human eyes: 380‑780 nm.

       2.1.2.13. "Surveillance