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    73.
    发明专利
    未知

    公开(公告)号：ITTO960236A1

    公开(公告)日：1997-09-29

    申请号：ITTO960236

    申请日：1996-03-27

    Applicant: FIAT RICERCHE

    Inventor： PERLO PIERO ,  REPETTO PIERMARIO ,  SINESI SABINO

    IPC: G02B3/00 ,  G02B26/00

    Abstract: The radiation beam (1) emitted by a polychromatic source of finite dimension is initially corrected in its vergency and distribution by a reflector or a system which operates according to refraction, diffraction or total inner reflection effects. The beam then strikes on an array of micro-lenses (2) of square or rectangular shape of arbitrary cross-section which have the function to converge and divide the beam into a plurality of partial beams which may have different directions, towards a matrix of coloured micro-filters (3) or images.

    74.
    发明专利
    未知

    公开(公告)号：ITTO960037A1

    公开(公告)日：1997-07-24

    申请号：ITTO960037

    申请日：1996-01-24

    Applicant: FIAT RICERCHE

    Inventor： PERLO PIERO ,  REPETTO PIERMARIO

    IPC: G02B3/00 ,  G02B26/00

    Abstract: The polychromatic or monochromatic radiation beam emitted by a light source strikes an array of micro-filters (2a) which partially or totally transmit the light beam towards an array of micro-mirrors (3a). The partially reflected beam comes back towards the first array of micro-filters (2a) and passes again through it until it reaches a viewer or a recording system or a screen. A relative movement between the two arrays of micro-filters (2a) and micro-mirrors (3a) enables static or animated images or colour strips selectable according to the needs to be generated.

    75.
    发明专利
    未知

    公开(公告)号：ITTO950763A1

    公开(公告)日：1997-03-26

    申请号：ITTO950763

    申请日：1995-09-26

    Applicant: FIAT RICERCHE

    Inventor： PERLO PIERO ,  SINESI SABINO ,  SARDI LUCA

    IPC: G02B1/11

    Abstract: There is described an antireflection surface having a predetermined roughness so as to keep the reflectivity of incident radiation low. A profile with projections having a height (h) which is an integer multiple of the radiation wavelength can trap the radiation irrespective from its polarization and also at large angles of incident light.

    76.
    发明专利
    未知

    公开(公告)号：ITTO950906D0

    公开(公告)日：1995-11-09

    申请号：ITTO950906

    申请日：1995-11-09

    Applicant: FIAT RICERCHE

    Inventor： PERLO PIERO

    IPC: G02B5/20 ,  F21S10/02 ,  F21V5/00 ,  F21V9/08 ,  G02B27/18 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357 ,  G09F19/20

    Abstract: A radiation beam emitted by a polychromatic source with finite dimension is initially corrected in its vergence and distribution by a reflector (18) or a system which operates according to refraction, diffraction, total inner reflection, effects and is incident on a matrix of micro-lenses (8) with a square, rectangular or any other cross-section, which have the function of converging the beam towards a matrix of coloured micro-filters (9) or image micro-cells. The micro-filters (9) or the cells corresponding to different images are two or more for each single micro-lens (8) which is present in the matrix of micro-lenses (8) The dimension of the coloured micro-filters (9) is such that they intercept partially or totally the converging polychromatic beam. The selection of the colour or the images is obtained by interposing the desired colour in the polychromatic light beam. A movement of the plate of micro-filters (9) enables the colour or the image to be changed. The cross-section of the micro-filters (9) and the type of micro-lenses (8) which are used enable coloured patterns with the desired light distribution to be generated.

    79.
    发明专利
    未知

    公开(公告)号：AT505810T

    公开(公告)日：2011-04-15

    申请号：AT04030244

    申请日：2004-12-21

    Applicant: FIAT RICERCHE

    Inventor： INNOCENTI GIANFRANCO ,  PERLO PIERO ,  REPETTO PIERMARIO ,  BOLLEA DENIS ,  CAPELLO DAVIDE ,  BERNARD STEFANO

    IPC: H01K1/02 ,  G02B6/12 ,  H01K5/00 ,  H01K7/00

    Abstract: A light-emitting device comprises a light source in the form of a preferably incandescent filament (8), a substantial part of which is integrated in a host element (7') having at least one portion (10) structured according to nanometric dimensions. The nano-structured portion (10) is in the form of e.g. a photonic crystal or of a Bragg grating, for the purpose of obtaining an amplified or increased emission of radiation in the region of the visible.

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