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    • 6. 发明专利
    • DAYLIGHT SENSOR, BLIND CONTROLLER AND ILLUMINATION CONTROLLER
    • JPH09318443A
    • 1997-12-12
    • JP2337497
    • 1997-02-06
    • MATSUSHITA ELECTRIC IND CO LTD
    • SHIMOMURA YOKOTANABE YOSHINORI
    • G01J1/02G01J1/42H05B37/02
    • PROBLEM TO BE SOLVED: To detect whether direct sunlight and strong ground reflected light exist or not by a method wherein a plurality of light receiving elements are installed in positions which can sense the direct sunlight, it is arranged that one element is not exposed to the direct sunlight at all and the difference between outputs from the respective elements or the ratio of the outputs is found. SOLUTION: A photoelectric conversion element 2a is arranged so as to be parallel to the glass plane of a window 3, a photoelectric conversion element 2b is arranged so as to face the sky, and the photoelectric conversion elements 2a, 2b are arranged in a direction perpendicular to, and opposite to, the window 3 in such a way that one or more elements which are not exposed to direct sunlight from sunrise up to sunset exist. When strong ground reflected light from other buildings exist, the output across the elements 2a, 2b is changed largely, and the existence of the ground reflected light is discriminated on the basis of it. When the direct sunlight is incident on the inside of a room, one out of the elements 2a to 2d does not receive the direct sunlight, a large difference is generated between their outputs, and the existence of the direct sunlight can be discriminated on the basis of it. On the basis of a discriminated result, a blind control operation and an illumination control operation are performed, and a change due to the direct sunlight can be relaxed.
    • 9. 发明专利
    • ILLUMINATING DEVICE
    • JPH04359894A
    • 1992-12-14
    • JP13400191
    • 1991-06-05
    • MATSUSHITA ELECTRIC IND CO LTD
    • OKAMURA IZUMITANABE YOSHINORI
    • E06B9/264F21S10/00F21S11/00H05B37/02
    • PURPOSE:To enable a psychological thermo-sensation provided by an illumination environment to be in accord with a thermo-sensation by a human skin so as to enhance a thermo-effect by making the color temperature, wavelength, quantity-of-light, and the like, of natural lighting from a sunlight and an artificial light adjustable according to an illuminating space or situations of the outside air. CONSTITUTION:A heating and cooling appliance 6 sends a signal 13 indicating under cooled or under heated to a light-color deciding part 7 when being cooled or heated, the deciding part 7 operates a color temperature corresponding to a color temperature of equal to or more than 5300K or a light color of equal to or less than 3300 K. A sunlight 12 being incident on a sunlight striking part 5 is measured with a color meter 8, a driving part 9 controls the striking part 5 until it equalizes with a chromaticity value from the deciding part 7. Thus, a light 14, being incident from the striking part 5, the color temperature of which being 'A' kelvin, becomes the chromaticity value from the deciding part 7. When the appliance 6 is not in operation, it operates in the same way as in the case of upon a cooling or a heating, when an outside air temperature measured by an outside temperature measuring part 10 is equal to or more than 23 deg.C or is equal to or less than 22 deg.C. Thereby a psycological thermo-sensation provided by an illumination environment matches thermo-sensation by a human skin, so that thermo-effect can be enhanced.