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    LENS FOR MULTIFOCAL ARTIFICIAL EYE VARIABLE IN TRANSPARENCY WITH ILLUMINANCE
    151.
    发明专利
    LENS FOR MULTIFOCAL ARTIFICIAL EYE VARIABLE IN TRANSPARENCY WITH ILLUMINANCE 失效

    公开(公告)号：JPH09197353A

    公开(公告)日：1997-07-31

    申请号：JP34967496

    申请日：1996-12-27

    Applicant: ESSILOR INT

    Inventor： NIKORASU SHIYATOO ,  KORIINU GUROORIERU ,  DOMENIKU BOODO

    IPC: A61F2/14 ,  G02B3/10 ,  G02B5/23 ,  G02C7/04 ,  G02C7/06 ,  G02C7/10

    Abstract: PROBLEM TO BE SOLVED: To improve the optical performance by providing at least two correction areas and varying the transparency in inverse proportion to the illuminance. SOLUTION: A multifocal contact lens 10 has at least two correction areas, i.e., a near eyesight correction area ZNV for correcting near eyesight and a far eyesight area ZDV for correcting far eyesight. This multifocal contact lens 10 has concentric annular areas around its optical axis A. In this case, the multifocal contact lens 10 is a central NV contact lens. Namely, the near eyesight area ZNV of the contact lens is in the center and the far eyesight area ZDV is at the periphery. And, the transparency of this multifocal contact lens 10 varies in inverse proportion to the illuminance. In detail, this multifocal contact lens 10 is formed out of a hard material or flexible material which decreases in transparency as the illumiannce increases.

    METHOD FOR CONVERTING VIDEO IMAGE INTO IMAGE SUITABLE FOR DISPLAY MATRIX
    153.
    发明专利
    METHOD FOR CONVERTING VIDEO IMAGE INTO IMAGE SUITABLE FOR DISPLAY MATRIX 失效

    公开(公告)号：JPH0887243A

    公开(公告)日：1996-04-02

    申请号：JP11185495

    申请日：1995-05-10

    Applicant: ESSILOR INT

    Inventor： TEIERII RURUU ,  SHIYURISUTEIAN MATSUSAARU

    IPC: G09G3/20 ,  G09G3/36 ,  G09G5/39 ,  G09G5/399 ,  H04N5/66

    Abstract: PURPOSE: To convert an image from a black-and-white CCD camera to an image matched with an LCD type display matrix by alternately reading digital signals from the odd-number part and even-number part of a memory means and reconstructing the image suitable for the display matrix from the read signals. CONSTITUTION: A converter 16 processes a video signal received from a camera 12 and distinguishes effective data from field/scanning line synchronizing data. Then, the effective data are digitized by a converter 16. The effective data are written in the even-number part and odd-number part of a memory 17. Write is executed synchronously with the video signal. The data written in the even-number part and odd-number part of the memory 17 are simultaneously read out. At such a time, the data are not synchronized with the video signal but read out by a frequency having compatibility with the frequency of a graphic controller 18 for driving an LCD 14. Thus, the read data are used by the graphic controller 18 and displayed on a graphic picture.

    METHOD FOR AVOIDING ACCUMULATION OF PROTEIN ON SURFACE OF SYNTHESIZED POLYMERS USED IN CONTACT WITH BIOLOGICAL SYSTEM
    155.
    发明专利
    METHOD FOR AVOIDING ACCUMULATION OF PROTEIN ON SURFACE OF SYNTHESIZED POLYMERS USED IN CONTACT WITH BIOLOGICAL SYSTEM 失效

    公开(公告)号：JPH07199131A

    公开(公告)日：1995-08-04

    申请号：JP14807394

    申请日：1994-06-29

    Applicant: ESSILOR INT

    Inventor： JIYOERU BAKU

    IPC: G02C7/04 ,  C11D3/00 ,  C11D3/384 ,  G02C13/00

    Abstract: PURPOSE: To protect a lens from a protein covering material contained in tears on the surface of the lens by using human or mammalian colostrum or breast milk for inhibiting accumulation of protein on the surface of a synthetic polymer. CONSTITUTION: In this method, human or mammalian colostrum or breast milk, each of which is capable of inhibiting protein accumulation on the surface of a synthetic polymer 9 in contact with a biological system that may contain protein, is used. At this time, the colostrum or breast milk is centrifuged at 2,800G, for 30min at 4 deg.C to discard the resulting surface layer liquid and to recover the remaining main liquid. Thereafter, the recovered liquid is further centrifuged at 1,500G, for 30min at 4 deg.C to suck out lipids in the surface layer and to recover the remaining liquid. Then, the recovered liquid is filtered with a molecular sieve having a 0.22μm pore size to obtain a filtered solution. If desired, the resulting filtered solution is diluted with a buffer solution having a pH of about 7.4 to produce a diluted solution. Further, the protein concn. of the colostrum or breast milk solution contg. no fat is adjusted to

    GRADUAL-ADVANCE MULTIFOCAL OPHTHALMIC LENS PAIR
    157.
    发明专利
    GRADUAL-ADVANCE MULTIFOCAL OPHTHALMIC LENS PAIR 失效

    公开(公告)号：JPH06313866A

    公开(公告)日：1994-11-08

    申请号：JP7847794

    申请日：1994-04-18

    Applicant: ESSILOR INT

    Inventor： FURANSOWAAZU ASHIYUBAASU ,  BERUNAARU BURUDONKURU ,  BENEDEIKUTO DERUDARU ,  KURISUTEIAN MIEJIYU

    IPC: G02C7/02 ,  G02C7/06

    Abstract: PURPOSE: To improve the whole visual field by a partial binocular summing effect for a far visual field by one of two lenses and a near visual field by the other lens. CONSTITUTION: Each lens has an aspheric surface consisting of a far visual field area VL, a near visual field area VP, an intermediate visual field area VI, and a gradual progress main meridian MM' and the meridians MM' of two lenses arc mutually substantially symmetrical. One of these lenses is especially used for a far visual field, the other lens is especially used for a near visual field and the lens used for the far visual field has a far visual field area wider than that of the lens used for the near visual field and has a near visual field area narrower than that of the lens used for the near visual field.

    METHOD OF CHECKING LENS FOR MATCHING WITH GLASSES FRAME
    158.
    发明专利
    METHOD OF CHECKING LENS FOR MATCHING WITH GLASSES FRAME 失效

    公开(公告)号：JPH06206155A

    公开(公告)日：1994-07-26

    申请号：JP31778093

    申请日：1993-12-17

    Applicant: ESSILOR INT

    Inventor： KURISUCHIAN JIYONKUURU

    IPC: B24B9/14 ,  B24B47/22 ,  G02C13/00

    Abstract: PURPOSE: To provide a method for checking that a lens properly suits an eyeglass frame, capable of using a lens grinding machine itself. CONSTITUTION: A lens 10 to be ground is mounted on a support shaft 15 and moved into contact with a grinding wheel 12 in an immoble state. The support shaft 15 is gradually rotated until the lens 10 to be ground has rotated through one complete turn. During such rotation, a check is carried out to determine whether a feeler 17 associated with a template 16 is operated or not. The invention finds an application in grinding machine used to trim eyeglass lenses.

    SPECTACLE FRAME
    159.
    发明专利
    SPECTACLE FRAME 失效

    公开(公告)号：JPH06175079A

    公开(公告)日：1994-06-24

    申请号：JP22095093

    申请日：1993-09-06

    Applicant: ESSILOR INT

    Inventor： ANDORE DANRUUPU ,  KUROODO YUUBAN

    IPC: G02C1/04 ,  G02C1/06

    Abstract: PURPOSE: To provide an advantageous combination in which the holding of a rim or a peripheral frame and a lens is appropriate by giving large thickness in the center part of the outline of the rim or the peripheral frame. CONSTITUTION: The center part 18 of the outline of the rim or the peripheral frame 10 has large thickness E2 in the center area. Namely, the center part 18 has thickness E2 larger than the thickness E3 of the end of the center part connected to side flanges 19. The section of the inner side S1 of the center part 18 on the outline of the rim or the peripheral frame 10 has a projecting form. The inner face of the center part 18 is round and it is engaged with the inner face of the side flanges 19. The center part 18 is positioned between the side flanges 19 through a part having a large curvature radius. The cross section of a strip 22 has a T-shape outline and it has side arms 26 arranged between the side flanges 19 of the outline of the rim or the peripheral frame 10 and a center web 28 received in a groove 29 provided at the edge 22 of the lens 14.

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