The angle of intersection of the mutually intersecting groups (11) is 90°±30°.

An angle of intersection (α2) between a tangent (L2) of the second location (P2) and the main surface is larger than an angle of intersection (α1) between a tangent (L1) of the first location (P1) and the main surface.

The axis of symmetry (10) of the first stone defines a first angle of intersection (8) with the application surface (2).

The second plate member has two faces (33) that intersect at an angle equal to the angle of intersection of two adjacent side faces (20) of a column component.

A normal of an interface between the depression and the waveguide intersects at a prescribed angle of intersection with an optical axis of light that propagates through the waveguide.

The polarizing device comprises two square, flat one-way glass (21) having an intersection angle of 45° with each other.

During the hob peeling, the two rotational axes (R1, R2) are arranged askew relative to each other at an axis intersection angle (Σ).

The second groove intersects the first groove set at an intersection angle such that the first optical surface (142) intersects the second optical surface (144) to define an orthogonal dihedral angle between the two surfaces.

The axes of rotation usually reside in a common plane and are substantially non-parallel, such that they intersect at an axes intersection angle.

An axes intersection angle of about 52 is typical.