A daylighting device according to one aspect of the present invention includes a daylighting member including a first substrate having light transparency and a plurality of daylighting units having light transparency which are provided on a first surface of the first substrate, in which the daylighting unit has a reflective surface which reflects light incident to the daylighting unit, the light which is reflected on the reflective surface and emitted from a second surface of the first substrate has characteristics that the light proceeds toward a space on the same side as the side where the light is incident to the reflective surface among two spaces divided with a virtual plane as a boundary which is vertical to the second surface of the first substrate and parallel to an extension direction of the daylighting unit, and the daylighting member exhibits light absorption characteristics for absorbing a part of the light incident to the plurality of daylighting units.

A daylighting device according to one aspect of the present invention includes a daylighting member including a first substrate having light transparency and a plurality of daylighting units having light transparency which are provided on a first surface of the first substrate, in which the daylighting unit has a reflective surface which reflects light incident to the daylighting unit, the light which is reflected on the reflective surface and emitted from a second surface of the first substrate has characteristics that the light proceeds toward a space on the same side as the side where the light is incident to the reflective surface among two spaces divided with a virtual plane as a boundary which is vertical to the second surface of the first substrate and parallel to an extension direction of the daylighting unit, and the daylighting member exhibits light absorption characteristics for absorbing a part of the light incident to the plurality of daylighting units.

A light fixture delivers light to an illuminated space. The light fixture includes a housing that defines a skylight aperture therethrough, and movable louver blades coupled within and spanning the skylight aperture. Open, the louver blades do not substantially block light through the skylight aperture; closed, the louver blades block substantially all light through the skylight aperture. In intermediate positions, the louver blades block a portion of light through the skylight aperture. The light fixture also includes a dimmable artificial light source, integrated with the housing and configured to project light toward the illuminated space; a light sensor; and a control unit that is integrated with the housing and communicatively coupled with the light sensor. The control unit receives a signal from the sensor, and controls position of the louver blades and brightness of the artificial light source, in response to at least the signal from the light sensor.

A light fixture delivers light to an illuminated space. The light fixture includes a housing that defines a skylight aperture therethrough, and movable louver blades coupled within and spanning the skylight aperture. Open, the louver blades do not substantially block light through the skylight aperture; closed, the louver blades block substantially all light through the skylight aperture. In intermediate positions, the louver blades block a portion of light through the skylight aperture. The light fixture also includes a dimmable artificial light source, integrated with the housing and configured to project light toward the illuminated space; a light sensor; and a control unit that is integrated with the housing and communicatively coupled with the light sensor. The control unit receives a signal from the sensor, and controls position of the louver blades and brightness of the artificial light source, in response to at least the signal from the light sensor.

A shading and illumination system includes a shading device for shading viewing openings, an illumination device for illuminating a room, an external sensor for detecting an external parameter acting on the room, an internal sensor for detecting a 3D image of the room, a position of a person present in the room in the 3D image, and a viewing direction of the person, and a control unit for actuating the shading device and the illumination device. The shading device and the illumination device are actuatable depending on the values measured by the external sensor and by the internal sensor. A light parameter acting on the person is determinable depending on the detected viewing direction, on the detected position, on the 3D image of the room, and on the external parameter. The shading device and/or the illumination device are/is actuatable depending on the light parameter acting on the person.

A shading and illumination system includes a shading device for shading viewing openings, an illumination device for illuminating a room, an external sensor for detecting an external parameter acting on the room, an internal sensor for detecting a 3D image of the room, a position of a person present in the room in the 3D image, and a viewing direction of the person, and a control unit for actuating the shading device and the illumination device. The shading device and the illumination device are actuatable depending on the values measured by the external sensor and by the internal sensor. A light parameter acting on the person is determinable depending on the detected viewing direction, on the detected position, on the 3D image of the room, and on the external parameter. The shading device and/or the illumination device are/is actuatable depending on the light parameter acting on the person.

An optical structure for controlling distribution of light generated by a light source is described. The optical structure includes a primary optics disposed relative to the light source and configured to reflect light generated by the light source towards a target region. The optical structure also includes a secondary optics disposed and aligned relative to the primary optics. The secondary optics is configured to at least partially block light generated by the light source from illuminating a region outside the target region.

An optical structure for controlling distribution of light generated by a light source is described. The optical structure includes a primary optics disposed relative to the light source and configured to reflect light generated by the light source towards a target region. The optical structure also includes a secondary optics disposed and aligned relative to the primary optics. The secondary optics is configured to at least partially block light generated by the light source from illuminating a region outside the target region.

A daylighting device according to an aspect of the present invention is a daylighting device for a building construction including an eaves that blocks solar radiation on an outer side of a window. The daylighting device includes a daylighting member and a support member. The daylighting member includes a first base member that is light transmissive, a plurality of daylighting portions that are light transmissive and disposed on a first surface of the first base member, and a gap portion disposed between the plurality of daylighting portions. The support member supports the daylighting member. The daylighting device changes an orientation of light incident thereon and causes the light to emit to a space shaded by the eaves.

A daylighting device according to an aspect of the present invention is a daylighting device for a building construction including an eaves that blocks solar radiation on an outer side of a window. The daylighting device includes a daylighting member and a support member. The daylighting member includes a first base member that is light transmissive, a plurality of daylighting portions that are light transmissive and disposed on a first surface of the first base member, and a gap portion disposed between the plurality of daylighting portions. The support member supports the daylighting member. The daylighting device changes an orientation of light incident thereon and causes the light to emit to a space shaded by the eaves.