Patent ID: 6224223
Filing Date: 2001-05-01
Classification: G02B

Abstract:
An illumination panel comprising:a light source;a photoconductor including an incident end face in that takes light from the light source, and a front face having emitting faces which are arranged at intervals and oppositely to the incident end face, said emitting faces guiding light incident thereon from the incident end face to be directly emitted as illumination light in a first predetermined direction, and said front face also having reflective faces each of which is arranged between respective adjacent ones of the emitting faces, said reflective faces reflecting external light incident on the front face from outside of the photoconductor; andan optical film arranged on a side of the front face of the photoconductor to emit the illumination light emitted from the emitting faces of the photoconductor in a second predetermined direction which differs from the first predetermined direction, and to emit the external light that is reflected by said reflective faces of the photoconductor in a third predetermined direction which is substantially equal to the second predetermined direction.