Portable apparatus and method
    42.
    发明专利

    公开(公告)号:AU775715B2

    公开(公告)日:2004-08-12

    申请号:AU1478102

    申请日:2002-02-01

    Applicant: KONAMI CORP

    Inventor: TAKADA ERI

    Abstract: This portable apparatus comprises a housing having a circuit built-in, and an input key, an ultraviolet receptive opening and a display, which are combined with the housing as one body. An ultraviolet sensor is provided in the interior of the ultraviolet receptive opening. This portable apparatus comprises means for receiving characteristic data about a characteristic of a user's skin against a suntan from the input key and measurement data about an ultraviolet ray quantity from the ultraviolet sensor, for predicting a user's suntanned skin condition from these data, and for generating image data for displaying an image about the prediction of user's suntanned skin condition. The image, which is based on image data generated by this means, is displayed on the display, making it possible for the user to confirm the user's skin condition.

    Optical filtering device
    43.
    发明专利

    公开(公告)号:GB9214556D0

    公开(公告)日:2004-02-04

    申请号:GB9214556

    申请日:1992-07-09

    Applicant: QINETIQ LTD

    Abstract: An optical filtering device incorporates first and second prisms, the latter prism counteracting the angular dispersion of the former prism. A spatial light modulator provides a positionally variable optical stop located to block radiation within a wavelength interval and received from a location within a scene. Unobscured radiation from that and other scene locations passes to a camera, which produces an image on a display. Opaque pixels in the stop are positioned to block unwanted light sources. The invention attenuates potentially dazzling monochromatic radiation while retaining radiation at other wavelengths for imaging purposes.

    Analyser for short and ultra-short light pulses - for complete pulse characterisation, esp. for laser development and set-up

    公开(公告)号:DE19549280A1

    公开(公告)日:1997-01-09

    申请号:DE19549280

    申请日:1995-12-22

    Abstract: A measuring appts. for short and ultra-short light pulses consists of an arrangement of beam dividers and reflectors for dividing a beam into two pulses, a movable delay element (5, 8) for at least one of the pulses, an optical element (9) for producing a correlation signal for both pulses and a replaceable detection unit (17). The novelty is that the appts. includes an exchangeable plate (13) with optical components (14, 15). Also claimed is a method of analysing short and ultra-short laser pulses using the above appts.. The method involves directing a laser pulse into the above arrangement such that it is divided into two subsidiary pulses which are directed onto the optical element for prodn. of a correlation signal, this signal then being analysed to determine the light frequency and/or the travel time difference between the two subsidiary pulses.

    46.
    发明专利
    未知

    公开(公告)号:SE9401669D0

    公开(公告)日:1994-05-16

    申请号:SE9401669

    申请日:1994-05-16

    Applicant: NOW OPTICS AB

    Inventor: LINDBLOM PETER

    Abstract: PCT No. PCT/SE95/00543 Sec. 371 Date Jan. 21, 1997 Sec. 102(e) Date Jan. 21, 1997 PCT Filed May 15, 1995 PCT Pub. No. WO95/31703 PCT Pub. Date Nov. 23, 1995An apparatus for carrying out spectral analysis of optical radiation emitted from a light source (11) comprises a spectral detector (1) having an entrance aperture (10) for the radiation from thelight source (11), a first imaging optical component (11), a first imaging optical component (12), a diffraction grating (14) for wavelength dispersion of the radiation, order sorting means (131, 132) for separation of the spectral orders of the diffraction grating (14), a second imaging optical component (15), and a detecting unit (16) for registration of the light source spectrum divided into order spectra through the order sorting means (131, 132). The order sorting means (131, 132) comprise at least two refractive optical components manufactured from different material. The two refractive optical components (131 and 132) together with the diffraction grating (14) and the imaging optical components (12 and 15) produce a substantially uniform distribution of the order spectra on the detector unit (16). Favourably the order sorting means (131, 132), the diffraction grating (14) and the imaging optical components (12, 15) also co-act to produce a substantially stigmatic image of the entrance aperture (10) in at least one point on the detector unit (16).

    Improvements in monochromators
    49.
    发明专利

    公开(公告)号:GB682149A

    公开(公告)日:1952-11-05

    申请号:GB1963051

    申请日:1951-08-20

    Abstract: 682,149. Spectroscopes. COMMONWEALTHSCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION. Aug. 20, 1951 [Nov. 9, 1950], No. 19630/51. Class 97 (i). [Also in Group XL (b)] A multiple chromator comprises means for obtaining a multiple dispersion of a beam of light before measuring the intensity of a given wavelength. The beam after passing through an entrance slit S 1 is collimated by a paraboloid mirror M 1 to pass through a prism P, and reflected by a plane mirror M 2 to pass again through prism P onto mirror M 1 . By means of two perpendicular plane mirrors M3, M 4 located with the adjacent edge near to the focal curve of mirror M 1 , the beam is turned back to be doubly dispersed again through prism P before reaching the exit slit S 2 . A light-chopper C interrupts the beam after first dispersal to obviate the effect of the first order dispersed light on a tuned detector at the exit slit S 2 . A plurality of pairs of mirrors M 3 , M' may be added to obtain any required number of dispersals through the prism P. The dispersion system may alternatively include a diffraction grating instead of a prism.

    50.
    发明专利
    未知

    公开(公告)号:FR903908A

    公开(公告)日:1945-10-22

    申请号:FR903908D

    申请日:1944-05-02

    Applicant: ZEISS CARL SOC

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