Abstract An artificial light source device in which the light rays from a light source lamp are converted to parallel light rays by means of a parabola reflection mirror and the parallel light rays are guided into an optical conductor rod and furthermore the output light rays from the optical rod are guided into an optical conductor cable and the output light rays from the optical conductor cable are employed as the light source. The light-receiving edge of the optical conductor cable is inclined in relation to the direction of the light rays' propagation. In addition to that, a filtering film capable of letting a pre-selected light component pass through the tight-receiving edge surface and of reflecting other pre-selected light components is provided thereon.
(1) An artificial light source device comprising a light source lamp, a reflection mirror for reflecting light rays from said light source lamp in the form of parallel light rays, an optical conductor rod having a light-receiving edge surface placed opposite said reflection mirror, said parallel light rays being guided into said optical conductor rod, and an optical conductor cable, the light-receiving edge surface of which is placed at the light-emitting edge surface of said optical conductor rod so as to be opposite the light-emitting edge surface thereof, and which employs the light rays from said optical conductor cable as a light source, characterized in that the light-receiving edge surface of said optical conductor cable is inclined in relation to the direction of the light rays' propagation and a filter capable of letting only pre-selected. light component pass through said inclined surface and for reflecting other pre-selected light components thereon is provided in said artificial light source device.
Claim 2
Dependent Claim
30 words
(2) An artificial light source device as defined in Claim 1, is characterized in that said light-receiving edge surface of said optical conductor cable is formed in a concave shape.
Claim 3
Dependent Claim
28 words
(3) An artificial light source device as defined in Claim 1 or 2, is characterized in that said filter is a film formed by evaporating a gold thereon.
Claim 4
Dependent Claim
44 words
(4) An artificial light source device as defined in Claim 1, 2 or 3, is characterized in that the light-receiving edge of the optical conductor, through which said reflected light rays are guided, are in the direction of said other pre-selected light components' reflection.