Exterior structure, vehicle exterior structure, and method for controlling exterior structure
An exterior structure includes a non-light-transmitting portion configured to not transmit an external light, and a light-transmitting portion arranged near the non-light-transmitting portion and configured to reflect and transmit the external light. Light released outward from the non-light-transmitting portion includes light reflected by the non-light-transmitting portion. Light released outward from the light-transmitting portion includes a combination of light reflected by the light-transmitting portion and light applied to the light-transmitting portion from an inner side and passing through the light-transmitting portion. The color difference ΔE between the light released outward from the non-light-transmitting portion and the light released outward from the light-transmitting portion is 5 or less.
1 . An exterior structure, comprising:
a non-light-transmitting portion configured to not transmit an external light; and
a light-transmitting portion arranged near the non-light-transmitting portion and configured to reflect and transmit the external light, wherein
light released outward from the non-light-transmitting portion includes light reflected by the non-light-transmitting portion,
light released outward from the light-transmitting portion includes a combination of light reflected by the light-transmitting portion and light applied to the light-transmitting portion from an inner side and passing through the light-transmitting portion, and
a color difference ΔE between the light released outward from the non-light-transmitting portion and the light released outward from the light-transmitting portion is 5 or less.
2 . The exterior structure according to claim 1 , further comprising a display light source arranged at the inner side of the light-transmitting portion, the display light source being configured to emit light to the light-transmitting portion to illuminate and display the light-transmitting portion, wherein
the display light source includes a light-emitting diode that emits visible light and processing circuitry configured to control light emission of the light-emitting diode, and
the processing circuitry is configured to cause the light-emitting diode to emit light such that the color difference ΔE between the light released outward from the non-light-transmitting portion and the light released outward from the light-transmitting portion is 5 or less.
3 . A vehicle exterior structure, comprising:
a non-light-transmitting portion configured to not transmit an external light;
a light-transmitting portion arranged near the non-light-transmitting portion and configured to reflect and transmit the external light; and
a display light source arranged at the inner side of the light-transmitting portion, the display light source being configured to emit light to the light-transmitting portion to illuminate and display the light-transmitting portion, wherein
the light-transmitting portion, in accordance with light emission by the display light source, exhibits color in a state in which an exterior color of the light-transmitting portion is similar to an exterior color of the non-light-transmitting portion or in a state in which the exterior color of the light-transmitting portion is the same as the exterior color of the non-light-transmitting portion.
4 . The vehicle exterior structure according to claim 3 , wherein
the light-transmitting portion includes
a transparent plastic base member,
a first color exhibiting layer containing dye or pigment, and
a second color exhibiting layer containing a filler made of a cold mirror thin film reflecting visible light and transmitting infrared light, and
the light-transmitting portion has a transmittance in a range of 5% to 20% for visible light having wavelengths in a range of 380 nm to 800 nm, a maximum transmittance of 60% or more for infrared light having wavelengths in a range of 900 nm to 2000 nm, and an attenuation factor of 3.0 dB or less for millimeter waves.
5 . The vehicle exterior structure according to claim 3 , wherein
the display light source includes a light-emitting diode that emits visible light and processing circuitry configured to control light emission of the light-emitting diode, and
the processing circuitry is configured to cause the light-emitting diode to emit light such that the light-transmitting portion exhibits color in the state in which the exterior color of the light-transmitting portion is similar to the exterior color of the non-light-transmitting portion or in the state in which the exterior color of the light-transmitting portion is the same as the exterior color of the non-light-transmitting portion.
6 . A method for controlling an exterior structure, the exterior structure including:
a non-light-transmitting portion configured to not transmit an external light;
a light-transmitting portion arranged near the non-light-transmitting portion and configured to reflect and transmit the external light; and
a light-emitting diode arranged at an inner side of the light-transmitting portion and emitting visible light, wherein
light released outward from the non-light-transmitting portion includes light reflected by the non-light-transmitting portion,
light released outward from the light-transmitting portion includes a combination of light reflected by the light-transmitting portion and light applied to the light-transmitting portion from the inner side and passing through the light-transmitting portion, and
the method comprising causing the light-emitting diode to emit light such that a color difference ΔE between the light released outward from the non-light-transmitting portion and the light released outward from the light-transmitting portion is 5 or less.