公开(公告)号：JP2002341246A

公开(公告)日：2002-11-27

申请号：JP2001150178

申请日：2001-05-18

Applicant: HITTSU KENKYUSHO KK ,  UNIV MADRID POLITECNICA

Inventor： SAKAI MASAHISA ,  HIROHASHI KAZUTOSHI ,  FUAN C MIFIANO ,  BENITEZ PABLO ,  HERNANDEZ FRANCISCO

IPC: G02B3/00 ,  G02B5/02 ,  G02B17/08 ,  G02B19/00 ,  G02B27/09 ,  G02B27/18 ,  H01S3/00 ,  H01S5/00 ,  H01S5/068

Abstract: PROBLEM TO BE SOLVED: To provide a light source unit which is safe to the eye of a human body and switches fast. SOLUTION: The light source unit is equipped with one or more laser light sources which emit light in one or more colors, a diffuser 3 which diffuses (transmits, reflects, or mixes) luminous flux made incident from the laser light source 1 directly or through a light convergence system 2, and an optical system 4 called a collimator which collimates the diffused luminous flux projected by the diffuser 3.

公开(公告)号：ES2206024A1

公开(公告)日：2004-05-01

申请号：ES200201104

申请日：2002-05-16

Applicant: UNIV MADRID POLITECNICA ,  HITS LAB INC

Inventor： MINANO JUAN CARLOS ,  BENITEZ PABLO ,  SAKAI MASAHISA ,  HIROHASHI KAZUTOSHI ,  HERNANDEZ FRANCISCO

IPC: G02B3/00 ,  G02B5/02 ,  G02B17/08 ,  G02B19/00 ,  G02B27/09 ,  G02B27/18 ,  H01S3/00 ,  H01S5/00 ,  H01S5/068 ,  H04B10/04

Abstract: Dispositivo de fuente luminosa. La presente invención proporciona una fuente luminosa segura para el ojo humano y cuya conmutación se consigue a alta velocidad. La fuente luminosa consta de una o más fuentes de luz láseres (0) para emitir mono o policromáticamente, un difusor (3) (por transmisión, por reflexión o mixto) para difundir el haz de luz inyectado directamente desde la fuente de luz láser (0) o a través del sistema óptico de enfoque (2) y el sistema óptico (4) al que se denomina colimador para colimar el haz de luz difundido que es emitido desde el difusor (3).

公开(公告)号：JP2001281425A

公开(公告)日：2001-10-10

申请号：JP2000099473

申请日：2000-03-31

Applicant: HITTSU KENKYUSHO KK

Inventor： SAKAI MASAHISA

IPC: G02B5/04 ,  G02B5/02 ,  H04B10/11 ,  H04B10/114 ,  H04B10/10 ,  H04B10/105 ,  H04B10/22

Abstract: PROBLEM TO BE SOLVED: To improve productivity, heat radiating property, convenience of use and so on. SOLUTION: Plural LEDs(light emitting diodes) 14 are directly attached to the lower surface of a fixing plate 11. The productivity and the positioning accuracy are improved because thereby conventional fixing of the LEDs with lead wires and fixing members are not necessary any more. Also the fixing plate 11 radiates the heat generated by the LEDs 14. However, as the direct attachment of the respective LEDs 14 to the lower surface of the fixing plate 11 like this results in the directional angle of the optical signal turning out to be limited within a vertically downward narrow range, a diffusion lens 12 diffusing the optical signal with specified light distribution is arranged so as to ensure a wide directional angle for the transmission range of the optical signal and to obtain nearly uniform intensity of the optical signal within a specified range.