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    • 7. 发明专利
    • OPTICAL SCANNING DEVICE
    • MY144834A
    • 2011-11-15
    • MYPI20061272
    • 2006-03-22
    • KONINKL PHILIPS ELECTRONICS NV
    • HENDRIKS BERNARDUS HENDRIKUS WILHELMUSKUIPER STEIN
    • G11B7/135
    • AN OPTICAL SCANNING DEVICE FOR SCANNING AN INFORMATION LAYER OF A FIRST OPTICAL RECORD CARRIER HAVING A FIRST COVER LAYER THICKNESS AND AN INFORMATION LAYER OF A SECOND OPTICAL RECORD CARRIER HAVING A SECOND, DIFFERENT COVER LAYER THICKNESS. THE DEVICE INCLUDES AN OBJECTIVE LENS SYSTEM FOR CONVERGING A RADIATION BEAM ON THE INFORMATION LAYERS. THE OBJECTIVE LENS SYSTEM INCLUDES A FIRST LENS ELEMENT AND A SECOND LENS ELEMENT SPACED APART ALONG AN OPTICAL AXIS. THE OBJECTIVE LENS SYSTEM FURTHER INCLUDES A SWITCHABLE OPTICAL ELEMENT COMPRISING A FIRST FLUID, AND A CHAMBER POSITIONED BETWEEN SAID FIRST LENS AND SAID SECOND LENS. THE OBJECTIVE LENS SYSTEM IS SWITCHABLE BETWEEN A FIRST CONFIGURATION IN WHICH THE FIRST FLUID OCCUPIES AN OPTICALLY ACTIVE PORTION OF THE CHAMBER SUCH THAT THE OBJECTIVE LENS SYSTEM HAS A FIRST FOCAL LENGTH FOR SCANNING THE INFORMATION LAYER OF THE FIRST OPTICAL RECORD CARRIER, AND A SECOND CONFIGURATION IN WHICH THE FIRST FLUID DOES NOT OCCUPY THE OPTICALLY ACTIVE PORTION OF THE CHAMBER SUCH THAT THE OBJECTIVE LENS SYSTEM HAS A SECOND, DIFFERENT FOCAL LENGTH FOR SCANNING THE INFORMATION LAYER OF THE SECOND OPTICAL RECORD CARRIER. THE OBJECTIVE LENS SYSTEM IS ARRANGED TO SATISFY THE CONDITION: FOCAL2-FOCAL1 > 0.9 (T2-T1)/N, WHERE T1 IS THE FIRST COVER LAYER THICKNESS, T2 IS THE SECOND COVER LAYER THICKNESS, T2 > T1, N IS THE REFRACTIVE INDEX OF THE SECOND COVER LAYER, FOCAL1 IS THE FIRST FOCAL LENGTH, AND FOCAL2 IS THE SECOND FOCAL LENGTH.
    • 9. 发明专利
    • VARIABLE LENS
    • MY146797A
    • 2012-09-28
    • MYPI20062681
    • 2006-06-08
    • KONINKL PHILIPS ELECTRONICS NV
    • HENDRIKS BERNARDUS HENDRIKUS WILHELMUSKUIPER STEIN
    • G02B3/14G11B7/135
    • A VARIABLE LENS AND A METHOD OF OPERATION OF A VARIABLE LENS ARE DESCRIBED. THE VARIABLE LENS HAS AN OPTICAL AXIS (19). THE LENS INCLUDES A FIRST AND A SECOND LENS ELEMENT. THE FIRST LENS ELEMENT INCLUDES TWO FLUIDS IN CONTACT OVER A FIRST MENISCUS (132) EXTENDING TRANSVERSE THE OPTICAL AXIS, THE FLUIDS BEING NON-MISCIBLE AND HAVING DIFFERENT INDICES OF REFRACTION. A SECOND LENS ELEMENT INCLUDES TWO FLUIDS IN CONTACT OVER A SECOND MENISCUS (134) EXTENDING TRANSVERSE THE OPTICAL AXIS, THE FLUIDS BEING NON-MISCIBLE AND HAVING DIFFERENT INDICES OF REFRACTION. A MENISCUS CONTROLLER IS ARRANGED TO CONTROL THE SHAPE OF EACH MENISCUS. THE MENISCUS CONTROLLER (110) IS ARRANGED TO CONTROL THE SHAPES OF THE MENISCI SUCH THAT THE AMOUNT OF SPHERICAL ABERRATION PRODUCED BY THE FIRST MENISCUS IS SUBSTANTIALLY COMPENSATED BY THE AMOUNT OF SPHERICAL ABERRATION PRODUCED BY THE SECOND MENISCUS FOR RADIATION OF AT LEAST A PREDETERMINED WAVELENGTH. SUCH A VARIABLE LENS CAN BE INCORPORATED IN A VARIETY OF APPARATUS, INCLUDING AN OPTICAL SCANNING DEVICE, A CAMERA, A MICROSCOPE OR A TELESCOPE.
    • 10. 发明专利
    • SPHERICAL ABERRATION DETECTOR
    • MY139085A
    • 2009-08-28
    • MYPI20062518
    • 2006-05-31
    • KONINKL PHILIPS ELECTRONICS NV
    • HENDRIKS BERNARDUS HENDRIKUS WILHELMUSSTALLINGA SJOERDLIEDENBAUM COEN THEODORUS HUBERTUS FRANSISCUSKUIPER STEINIMMINK ALBERT HENDRIK JANTUKKER TEUNIS WILLEM
    • G11B7/135
    • : SPHERICAL ABERRATION DEIECLOR AN OPTICAL SCANNING DEVICE (1) FOR SCANNING- AT LEAST ONE INFORMATION LAVER 5 OF AT LEAST ONE OPTICAL RECOI-D CARRIER (1). THE DEVICE INCLUDESA RADIATION SOURCE (7) F0I PROVIDINC, AT LEAST A FIRST RADIATION BEAM (4) COMPRISING A FIRST WAVELENG4H, AN OL@JECTIVC ICNS SYSTEM (8) FOR CONVERGING THE FIRST RADIATION BEAM OIL A RESPECTIVE INIBRINATION LAVER (2), AN INFORMATION DETECTOR (23) FOR DETECTING AT LEAST A PORTION OF THE FIRSI RADIATION BEARN (22) REFLECTED FRORN THE RESPECTIVE INFOR-INATION LAYER, FOR DETENNINING INFORMALION OIL SAID LAVEI, I 0 AND A SPHERICAL ABEN ATION DETECTION SNSICNI. THE SPHERICAL ABEN-ATION DETECLION SYSICIN INCLUDES AN ABERRATION DETECTOR (24) FOR DETECTING AT LEAST A I)OJIION OF THE REFLECTED FIRST RADIATION BEAM FOR DETERMINING SPHERICAL ABERRATION OF FILE FIRST RADIATION BEANI, AND A DIFFI-ACTIVE ELEMENT (26) FOR DIFFRACTING AT LEAST A PORNON OF THE REFLECTED FIRST RADIATION BEAM TOWARDS THE ABERRATION DETECTOR (24), AND FOI- TRANSMITTING AT LEAST A PORTION OF THE REFLECTED L 5 FIRST RADIATION BEAM TOWARDS THE INFORMATION DETECTOR (23). IN A FIRST MODE OF OPERATION THE ,GRATING IS ARRANGED TO INTRODUCE A PHASE CHANPE TO IN INCIDENT PORTION OF A RADIATION BEAM FOR TRANSMITTIN- THAT PORTION TOWATDS THE INFORMATION DETECTOR (23). IN A SECOND MODE OF OPERATION THE GRIATING IS ARRANGED TO IML-ODUCE APHASE CHANGE TO AN INCIDENT PORTION OFTHE REFLECTED FIRST RADIATION BEAM FOI DIFFI ACTIM, THAT PORTION TOWARDS FILE ABERIATION DETECTOT (24). 20