Betekenis van:
solid angle

solid angle
Zelfstandig naamwoord
    • an angle formed by three or more planes intersecting at a common point (the vertex)

    Hyperoniemen


    Voorbeeldzinnen

    1. Solid angle
    2. ‘directional lamp’ means a lamp having at least 80 % light output within a solid angle of π sr (corresponding to a cone with angle of 120°);
    3. ‘Directional Light Source’ (DLS) means light sources having at least 80 % light output within a solid angle of π sr (corresponding to a cone with angle of 120 °).
    4. The cabinet shall be equipped with a nozzle(s) which provides a solid cone water spray of sufficient angle to completely cover the sample device.
    5. radiance (L): the radiant flux or power output per unit solid angle per unit area, expressed in watts per square metre per steradian (W m—2 sr-1);
    6. ‘Angles of geometric visibility’ means the angles which determine the field of the minimum solid angle in which the apparent surface of the lamp must be visible.
    7. CIL values lower than those shown in the last two columns of the above table are not permissible within the solid angle having the reference centre as its apex and bounded by the planes intersecting along the following lines:
    8. ‘Angles of geometric visibility’ means the angles which determine the field of the minimum solid angle in which the exterior light-emitting surface of the lamp must be visible.
    9. ‘Luminance’, which is the amount of light, per unit of apparent surface, that is emitted by or reflected by a particular area within a given solid angle (unit: cd/m2);
    10. That field of the solid angle is determined by the segments of a sphere of which the centre coincides with the centre of reference of the lamp and the equator is parallel with the ground.
    11. radiance (L): the radiant flux or power output per unit solid angle per unit area, expressed in watts per square metre per steradian (W m—2 sr-1); (i) level: the combination of irradiance, radiant exposure and radiance to which a worker is exposed.
    12. G integrated radiance: the integral of the radiance over a given exposure time expressed as radiant energy per unit area of a radiating surface per unit solid angle of emission, in joules per square metre per steradian [J m-2 sr -1].
    13. CIL values lower than those shown in the last two columns of the above table are not permissible within the solid angle having the reference centre as its apex and bounded by the planes intersecting along the following lines: (V = ± 10°, H = 0°)