Vehicle lighting fixture

Abstract

When light is off, a transparent appearance is obtained, while when the light is on, light is seen through a transparent spot. The present invention includes a light source portion and a reflective portion. The light source portion emits light. The light source portion is disposed at a position shifted with respect to an emitting direction of emitted light from the reflective portion. The reflective portion reflects the light from the light source portion and emits it in a predetermined direction. The reflective portion is constituted by a transparent member with a refractive index at least in a visible light area larger than 1. As a result, in the present invention, the transparent appearance is obtained when the light is off, while the light is seen through the transparent spot when the light is on.

1 . A vehicle lighting fixture comprising:
 a light source portion which emits light; and   a reflective portion which reflects the light from the light source portion and emits the light in a predetermined direction, wherein   the light source portion is disposed at a position shifted with respect to an emission direction of light emitted from the reflective portion; and   the reflective portion is constituted by a transparent member whose refractive index at least in a visible light range is larger than 1.   
     
     
         2 . The vehicle lighting fixture according to  claim 1 , wherein
 a shielding member which blocks the light source portion from a line of sight in a direction opposite to the emission direction of the light emitted from the reflective portion.   
     
     
         3 . The vehicle lighting fixture according to  claim 1 , wherein
 a lamp housing and a lamp lens forming a light chamber are provided;   the light source portion is disposed inside the light chamber; and   the reflective portion is disposed outside the light chamber and facing the lamp lens so that the light from the light source portion emitted from the lamp lens to outside of the light chamber is reflected and emitted again in a predetermined direction to the outside the light chamber.   
     
     
         4 . The vehicle lighting fixture according to  claim 3 , wherein
 the reflective portion constitutes a part of a transparent wall member which forms a cabin.   
     
     
         5 . The vehicle lighting fixture according to  claim 3 , wherein
 the reflective portion is constituted by at least one plate member.   
     
     
         6 . The vehicle lighting fixture according to  claim 3 , wherein
 the light source portion has:   a light source which emits light; and   an optical substrate which is disposed between the light source and the lamp lens.   
     
     
         7 . The vehicle lighting fixture according to  claim 6 , wherein
 the optical substrate has a design part provided.   
     
     
         8 . The vehicle lighting fixture according to  claim 6 , wherein
 the light source portion has a plurality of the light sources, each of which can be controlled to be turned on/off.   
     
     
         9 . The vehicle lighting fixture according to  claim 3 , comprising
 a design member with a design, wherein   the design member is disposed on a side opposite to a side of a direction in which the reflective portion emits the light from the light source portion with respect to the reflective portion.   
     
     
         10 . A vehicle lighting fixture, comprising:
 an excitation light source which emits excitation light;   a light emitting layer which generates photoluminescence by the excitation light emitted from the excitation light source;   a lamp housing and a lamp lens which form a light chamber;   a reflective portion which is disposed in the light chamber and reflects the photoluminescence from the light emitting layer to the lamp lens side; and   an excitation-light blocking member which is disposed between the light emitting layer side and sides of the reflective portion and the lamp lens so as to block, of the excitation light, the excitation light that does not pass through the light emitting layer, wherein   the lamp lens is constituted by a colorless light-transmissive member.   
     
     
         11 . The vehicle lighting fixture according to  claim 10 , wherein
 the excitation-light blocking member is constituted by a member which transmits the photoluminescence and absorbs the excitation light.   
     
     
         12 . The vehicle lighting fixture according to  claim 10 , wherein
 the excitation-light blocking member has a transmissive part which transmits the photoluminescence and a non-transmissive part which does not transmit the excitation light.   
     
     
         13 . The vehicle lighting fixture according to  claim 10 , comprising
 an external-light absorbing layer which absorbs light transmitted through the lamp lens from outside the light chamber and entering the light chamber, on a surface on the side of the light chamber in the lamp housing.   
     
     
         14 . The vehicle lighting fixture according to  claim 10 , wherein
 a design part is provided in the light emitting layer.   
     
     
         15 . The vehicle lighting fixture according to  claim 10 , wherein
 the reflective portion is constituted by at least one plate member.   
     
     
         16 . The vehicle lighting fixture according to  claim 10 , wherein
 the excitation light sources are provided in plural; and   each of the plurality of excitation light sources can be controlled to be turned on/off.   
     
     
         17 . A vehicle lighting fixture comprising:
 an excitation light source which emits excitation light;   a light emitting layer which generates photoluminescence by the excitation light emitted from the excitation light source;   a lamp lens; and   a reflective portion which is directed to the light emitting layer and an inside of the lamp lens, respectively, and reflects the photoluminescence from the light emitting layer, transmits the photoluminescence through the lamp lens, and emits the photoluminescence to outside the lamp lens, wherein   the lamp lens is constituted by a member which absorbs the excitation light.   
     
     
         18 . The vehicle lighting fixture according to  claim 17 , wherein
 a design part is provided in the light emitting layer.   
     
     
         19 . The vehicle lighting fixture according to  claim 17 , wherein
 the excitation light sources are provided in plural; and   each of the plurality of excitation light sources can be controlled to be turned on/off.   
     
     
         20 . The vehicle lighting fixture according to  claim 17 , comprising
 a design member with a design, wherein   the design member is disposed on a side opposite to the lamp lens side with respect to the reflective portion.   
     
     
         21 . A vehicle lighting fixture comprising:
 a light source which emits light;   a reflective portion which reflects the light from the light source and emits the light in a predetermined direction; and   an optical substrate which is disposed between the light source and the reflective portion.   
     
     
         22 . The vehicle lighting fixture according to  claim 21 , wherein
 the optical substrate has a design part provided.   
     
     
         23 . The vehicle lighting fixture according to  claim 21 , wherein
 the light sources are provided in plural; and   each of the plurality of light sources can be controlled to be turned on/off.   
     
     
         24 . The vehicle lighting fixture according to  claim 21 , comprising
 a design member with a design, wherein   the design member is disposed on a side opposite to the lamp lens side with respect to the reflective portion.