SIMPLE ORDERING

HOME PAGE

Multi Function TAIL LIGHTS

FEDERAL  #108 SUMMARY

3rd BRAKE CHMSLs Etc

TESTIMONIALS

ABOUT  US

CLEARANCE, SIDE  MARKER  and  I.D.s

COMPARING COMPETITORS

LEGAL CLARIFICATIONS

 Print this Page

FMVSS 108 Definitions

FMVSS 108 Definitions 
Effective light-emitting surface means that portion of a lamp that directs light to the photometric test pattern, and does not include transparent lenses, mounting hole bosses, reflex reflector area, beads or rims that may glow or produce small areas of increased intensity as a result of uncontrolled light from an area of 1/2 degree radius around a test point.

Effective projected luminous lens area means the area of the orthogonal projection of the effective light-emitting surface of a lamp on a plane perpendicular to a defined direction relative to the axis of reference. Unless otherwise specified, the direction is coincident with the axis of reference.

Axis of reference means the characteristic axis of the lamp for use as the direction of reference (H = 0°, V = 0°) for angles of field for photometric measurements and for installing the lamp on the vehicle.

************

Main Entry: orthographic projection
Function: noun
1 : projection of a single view of an object (as a view of the front) onto a drawing surface in which the lines of projection are perpendicular to the drawing surface
2 : the representation of related views of an object as if they were all in the same plane and projected by orthographic projection
3-View Drawing by Orthographic Projection (& Oblique Sketch)
    

    ************    

    Back to Home Page

      Email your Questions - We’ll try to

    answer them directly or address them in our next “Tech & Legal

    Clarification” update