ILLUMINATION UNIT HAVING AT LEAST ONE LED AS LIGHT SOURCE

    公开(公告)号:JP2003206481A

    公开(公告)日:2003-07-22

    申请号:JP2002277736

    申请日:2002-09-24

    Abstract: PROBLEM TO BE SOLVED: To provide an illumination unit capable of exhibiting a high level of constancy even at fluctuating operating temperatures and emitting white light and having especially high color reproducibility and high efficiency. SOLUTION: This illumination unit has the following features. Conversion take place with the aid of at least one kind of phosphor which is derived from a cation M and silicon nitride or a derivative of a nitride and emits light with a peak emission wavelength at 430-670 nm. The cation M is partially replaced by a dopant D, namely Eu 2+ or Ce 3+ . In this case, at least one kind of divalent metals Ba, Ca, Sr and/or at least one kind of the trivalent metals Lu, La, Gd and Y are used as the cation M. The phosphor is derived from the following kinds. Nitrides of the structures MSi 3 N 5 , M 2 Si 4 N 7 , M 4 Si 6 N 11 and M 9 Si 11 N 23 , oxynitrides of the structure M 16 Si 15 O 6 N 32 and sialons of the structures MSiAl 2 O 3 N 2 , M 13 Si 18 Al 12 O 18 N 36 , MSi 5 Al 5 ON 9 and M 3 Si 5 AlON 10 . The illumination unit is provided with at least one LED as a light source. COPYRIGHT: (C)2003,JPO

    FACE LIGHT SOURCE GENERATOR
    6.
    发明专利

    公开(公告)号:JP2002185047A

    公开(公告)日:2002-06-28

    申请号:JP2001297342

    申请日:2001-09-27

    Abstract: PROBLEM TO BE SOLVED: To increase the amount of light emission per unit area in a face light source generator, and at the same time, to achieve high lighting intensity and uniformity. SOLUTION: This surface light source generator can provide the face light source having high lighting intensity, uniformity, and a low dispersion angle. In the face light source generator, a light-emitting diode(LED) is used as a base. The light-emitting diode conforms to the industrial standard where a phosphor is stuffed. The shape of an LED element, such as hexagonal, quadrilateral, and triangular pillars is newly designed, and also a plurality of the same type of LEDs is stuffed, thus forming a face-type phosphor, where a number of LED elements are concentrated. At the upper section of the LED element, the condensing operation of a convex lens is used, and a light dispersion angle is controlled within 15 degrees. By a technique for stuffing the number of LED elements for concentration, the light emission intensity per unit area in the face light source generator can be increased, and at the same time, high lighting intensity and uniformity can be achieved.

    NEST FRAME,LUMINOUS MODULE AND ITS MANUFACTURE

    公开(公告)号:JPH08316531A

    公开(公告)日:1996-11-29

    申请号:JP9683696

    申请日:1996-04-18

    Abstract: PROBLEM TO BE SOLVED: To assure easier manufacture and enable curving bending process of a module after the manufacture by providing a plurality of bus-bar pairs and a plurality of light-emitting semiconductor devices and electrically and mechanically coupling bus-bar pairs with flexible joints. SOLUTION: A moldable nesting frame 10 has a plurality of bus-bars 11 and flexible joints 15 for coupling bus-bar pairs. A plurality of LED lamps 17 are provided on the bus-bar 11. An LED lamp 17 is formed in an almost square shape, and a housing 16 is provided with a cover and a lens 18. A flexible joint 15 can be bent easily and can isolate the bus-bar pair in the x and y directions. When used as a tail lamp of a car, the light-emitting module 50 can be formed into a final shape by the automatic metal bending process, according to the installation place.

    LED LAMP
    8.
    发明专利
    LED LAMP 失效

    公开(公告)号:JPH0715043A

    公开(公告)日:1995-01-17

    申请号:JP15517793

    申请日:1993-06-25

    Applicant: TOSHIBA CORP

    Abstract: PURPOSE:To provide a multicolor luminescence LED with an excellent color mixing property and high luminance. CONSTITUTION:The title lamp consists of the following; a plurality of semiconductor light emitting elements 1R and 1G which emit at least two or more colors, a lead frame which mounts a plurality of the semiconductor light emitting elements 1R and 1G, and an optically transparent sealing resin capsule 4 which encloses a plurality of the semiconductor light emitting elements 1R and 1G. The carvature of the sealing resin capsule 4 is smaller in the direction pallarel with the arrangement of a plurality of the semiconductor light emitting elements 1R and 1G than in the direction vertical to the arrangement.

    GLASS FOR OPTICAL SIGNAL DEVICE
    9.
    发明专利

    公开(公告)号:JPH06267306A

    公开(公告)日:1994-09-22

    申请号:JP35636792

    申请日:1992-12-21

    Applicant: VALEO VISION

    Inventor: ANDORE DEYUNO

    Abstract: PURPOSE: To obtain glass equipped with pseudo reflective refractive elements capable of being manufactured simply and inexpensively, and a motor vehicle signal device having one or more signal function and equipped with the glass. CONSTITUTION: Glass G used in one or more signal lights has reflective refractive needle-like appearances but includes plural pseudo reflective refractive elements having different functions. At least a part of the pseudo reflective refractive elements 20 has cone-shaped ends 26 on the inner surface of the glass, to thereby facilitate manufacture of a mold for mass production of the glass.

    LIGHT-EMITTING SEMICONDUCTOR DEVICE

    公开(公告)号:JPS6239081A

    公开(公告)日:1987-02-20

    申请号:JP17834885

    申请日:1985-08-13

    Applicant: SHARP KK

    Inventor: IKEHARA TAKASHI

    Abstract: PURPOSE:To enable the omission of a signal light emitting element or a pilot LED for confirming emission of signals by enabling the emission of two kinds of rays such as visible ray and infrared ray or the non-directive light emission by enclosing two kinds of light-emitting elements in a package into one body. CONSTITUTION:In a transparent plastic package 3, one visible ray diode element 1 is arranged with a right angle to a base 5 and an infrared ray diode element 2 is arranged with a constant angle theta to the base 5. A drive circuit 4 is incorporated in the base 5; and the drive circuit 4, the elements 1 and 2, and an anode A, a cathod K, and a signal S are connected through gold wires 13. Apparently, one light emitting diode emits both infrared rays and visible rays, so that the timing that a signal is emitted or such fact can be confirmed easily.

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