摘要:
A multifocal ocular lens having a vision correction area which includes a central and outer vision correction region, an intermediate region located between the central and outer regions, and an intermediate-distance vision correction region located radially outwardly of and adjacent to the outer region, and which has an optical axis with which centers of these regions are aligned, the central and outer vision correction regions having respective different first and second optical power values, wherein the optical power of the intermediate region located between the central and outer regions is represented by a combination of two different quadratic curves connected to each other at a point of inflection which corresponds to a desired third optical power between the first and second values, and wherein the intermediate-distance vision correction region located radially outwardly of the outer region includes radially inner and outer varying-power zones, the optical power in the radially inner varying-power zone continuously varying from the second value of the outer vision correction region to a predetermined fourth value which is between the first and second values, while the optical power in the radially outer varying-power zone continuously varying from the fourth value to the second value of the outer region.
摘要:
A multifocal ocular lens having a vision correction area which consists of a central, an intermediate, and an outer vision correction region having respective different values of an optical power, and which has an optical axis with which centers of the central and outer vision correction regions are aligned, the central and outer vision correction regions having respectively determined first and second mutually different values of the optical power, wherein the optical power of the intermediate region is represented by a combination of a first and a second quadratic curve connected to each other at a point of inflection which corresponds to a radial position of a boundary between the inner and outer sections, and which corresponds to a desired third value of the optical power between the first and second values, or the optical power of the intermediate region is represented by one polynomial equation whose degree is not smaller than 2 and continuously changes from the first value to the second value with an increase in a radial distance from the optical axis.
摘要:
An eye bandage formed of a soft material and having a shape similar to a contact lens, the eye bandage being worn on an eye after an intraocular surgical operation of the eye, such that the eye bandage is held in contact with a cornea and a sclera of the eye so as to cover an incised portion of the sclera, the eye bandage comprising: a central portion which is to contact the cornea and which has a back surface having a profile following that of a front surface of the cornea; and a peripheral portion located radially outwardly of the central portion and having a thickness larger than that of the central portion and a diameter which is large enough to cover the incised portion of the sclera, the peripheral portion including at least a sclera-contacting portion that is to contact the sclera, the sclera-contacting portion having a back surface having a profile following a front surface of the sclera, so that the sclera-contacting portion is held in close contact with the sclera of the eye.
摘要:
A device of the present invention includes: apparatus for photographing an anterior eye segment of a subject; a first display device for displaying an image of the anterior eye segment; a device for processing the displayed image to detect the relative positions of a pupil and a contact lens, respectively; a calculating apparatus for obtaining the relationship of relative positions between them by calculating; and a second display device for displaying the obtained relationship of the relative positions. The described arrangement is particularly useful for inspecting a condition for the putting on of the contact lens by measuring the relationship of the relative positions between the contact lens at the time of being put on and the pupil of the concerned eye segment.
摘要:
A camera-integrated VTR system including a printer embodying a data processing device of the invention is provided, wherein various external data supplied from an external device and internal data generated or recorded internally are enabled to be exchanged selectively, easily and directly between respective components of the system without use of any additional component therebetween so as to be printed instantaneously. The printer of the camera-integrated VTR system comprises a picture display device; a memory device for storing a still picture displayed on the picture display device; and a print operation button for operating the printer, wherein the print operation button is a pushbutton switch which has two modes of states of a half-depressed mode and a full-depressed mode; and wherein the half-depressed mode of the print operation button allows for a portion of pictures displayed on the display device to be selected as a print picture and stored in the memory device; and the full-depressed mode of the print operation button allows to start printing of the print picture.
摘要:
A jig adapted to hold a contact lens material having a concave surface, for holding the contact lens material, including a protruding portion which has a top end having as an outer surface thereof a convex surface. This convex surface of the jig is bonded to the concave surface of the contact lens material. The protruding portion has a recess which extends from an inner surface of the top end toward a bottom end of the protruding portion. The recess is defined by an inner surface which includes a first portion that corresponds to the convex surface of the top end of the protruding portion. At least the first portion of the inner surface is toughened with a light-scattering texture. A method of holding the contact lens material while the contact lens material is processed into a contact lens is disclosed.
摘要:
A first measured value of a specific physical quantity at a target portion is correlated with a damage evaluation index to calculate a damage degree corresponding to the first measured value. The specific physical quantity is measured at least once at a position corresponding to the first measurement position in another time period having a different usage elapsed time from that of the first measurement, and these second and subsequent measured values are correlated with damage degrees calculated based on temporal changes corresponding to the second and subsequent measurements. A new damage evaluation index is approximately calculated based on a relationship between the first, second, and subsequent measured values and the damage degrees corresponding to the first, second, and subsequent measured values.
摘要:
A printing condition setting apparatus having a setting parameter data storage unit for storing a plurality of setting parameter data each including at least one setting parameter registered by the user's operation among a plurality of setting parameters specifying printing conditions; a setting parameter data reception unit for receiving the user's selection of one setting parameter data among a plurality of setting parameter data stored in said setting parameter data storage unit; and a setting parameter data call unit for calling up said one setting parameter data selected by the user to display the setting parameters included in said setting parameter data on a specific operating screen.
摘要:
A camera-integrated VTR system including a printer embodying a data processing device of the invention is provided, wherein various external data supplied from an external device and internal data generated or recorded internally are enabled to be exchanged selectively, easily and directly between respective components of the system without use of any additional component therebetween so as to be printed instantaneously. The printer of the camera-integrated VTR system comprises a picture display device; a memory device for storing a still picture displayed on the picture display device; and a print operation button for operating the printer, wherein the print operation button is a pushbutton switch which has two modes of states of a half-depressed mode and a full-depressed mode; and wherein the half-depressed mode of the print operation button allows for a portion of pictures displayed on the display device to be selected as a print picture and stored in the memory device; and the full-depressed mode of the print operation button allows to start printing of the print picture.
摘要:
A first measured value of a specific physical quantity at a target portion is correlated with a damage evaluation index to calculate a damage degree corresponding to the first measured value. The specific physical quantity is measured at least once at a position corresponding to the first measurement position in another time period having a different usage elapsed time from that of the first measurement, and these second and subsequent measured values are correlated with damage degrees calculated based on temporal changes corresponding to the second and subsequent measurements. A new damage evaluation index is approximately calculated based on a relationship between the first, second, and subsequent measured values and the damage degrees corresponding to the first, second, and subsequent measured values.