Abstract: An eye-side refractive surface 11 of a distance portion is concave and at least part of an eye-side refractive surface 3 of a near portion is a convex region 31 where one or both of principal meridians of the surface are convex. This provides a back surface progressive-power lens capable of solving disadvantages in terms of lens thickness, external appearance and the like in a back surface progressive-power lens in which the eye-side refractive surface is formed of a progressive-power surface.

Abstract: A lens order system, includes: a server unit, including: a data recognizer that recognizes lens design detail data relating to design details of a lens; an image storage that stores object image data relating to an image of an object; an image recognizer that recognizes the object image data based on the lens design detail data; and an order reception section that recognizes order data relating to an order for a designed lens and generates order reception data, and a terminal unit connected with the server unit in a data transmittable manner, the terminal unit including: a data acquiring section that acquires the lens design detail data; a lens design section that designs the lens based on the lens design detail data; an image processor that superposes lens image data relating to an image of the designed lens designed by the lens design section on the object image data sent from the server unit and generates processed image data in which a superposing portion of the object image data and the lens image data i

Abstract: A lens order system, includes: a server unit including: a data recognizer that recognizes lens design detail data on setting details of a lens; an image data recognizer that recognizes image data on an image; a lens design section that designs the lens based on the lens design detail data; an image processor that creates processed image data in which lens image data on an image of the designed lens is superposed on the image data and a superposing portion of the image data and the lens image data is image-processed to show a vision of the image data through the designed lens; and an order reception section that recognizes order data on an order of the designed lens and generates order reception data; and a terminal unit connected with the server unit in a data transmittable manner, the terminal unit including: a data acquiring section that acquires the lens design detail data; a display controller that recognizes and displays on a display the processed image data sent from the server unit; and an order sectio

Abstract: An eye-side refractive surface 11 of a distance portion is concave and at least part of an eye-side refractive surface 3 of a near portion is a convex region 31 where one or both of principal meridians of the surface are convex. This provides a back surface progressive-power lens capable of solving disadvantages in terms of lens thickness, external appearance and the like in a back surface progressive-power lens in which the eye-side refractive surface is formed of a progressive-power surface.

Abstract: A progressive power lens that prevents degradation in optical characteristics invited by deviation of a pantoscopic angle from the standard value. The lens includes an outer refractive surface and an inner refractive surface, at least one of which is a progressive surface. Because the amount and direction of aberrations generated in distance and near portions are different, correction is given to either or both of the surface powers of the outer and inner surfaces of the lens such that the distance and near portions are differently corrected.

Abstract: An eye-side refractive surface 11 of a distance portion is concave and at least part of an eye-side refractive surface 3 of a near portion is a convex region 31 where one or both of principal meridians of the surface are convex. This provides a back surface progressive-power lens capable of solving disadvantages in terms of lens thickness, external appearance and the like in a back surface progressive-power lens in which the eye-side refractive surface is formed of a progressive-power surface.

Abstract: A progressive power lens that prevents degradation in optical characteristics invited by deviation of a pantoscopic angle from the standard value. The lens includes an outer refractive surface and an inner refractive surface, at least one of which is a progressive surface. Because the amount and direction of aberrations generated in distance and near portions are different, correction is given to either or both of the surface powers of the outer and inner surfaces of the lens such that the distance and near portions are differently corrected.

Abstract: A simulation device includes: a design data acquisition section adapted to acquire lens design data; a lens designing section adapted to design a lens based on the lens design data; an original image data acquisition section adapted to acquire original image data constituting an observation virtual space to be an object of observation by a lens user; a visual motion characteristic data acquisition section adapted to acquire visual motion characteristic data related to motions of a head and eyeballs when the lens user transfers an visual axis to various observation targets; an image processing section adapted to generate processed image data as the original image data viewed through a designed lens designed by the lens designing section; an image moving section adapted to move the processed image data; an image data control section adapted to control a moving distance of the processed image data moved by the image moving section based on the visual motion characteristic data; and a display section adapted to d

Abstract: An eye-side refractive surface 11 of a distance portion is concave and at least part of an eye-side refractive surface 3 of a near portion is a convex region 31 where one or both of principal meridians of the surface are convex. This provides a back surface progressive-power lens capable of solving disadvantages in terms of lens thickness, external appearance and the like in a back surface progressive-power lens in which the eye-side refractive surface is formed of a progressive-power surface.

Abstract: A visual simulator for a spectacle lens including: a lens design data acquirer that acquires lens design data on design items of a spectacle lens including a prescription for a spectacle wearer's naked eye; a lens designer that designs the spectacle lens based on the lens design data; an original image data acquirer that acquires an original image data for the simulation; an image processor that processes the original image data acquired by the original image data acquirer and generates image data representing an image viewed through a lens processed based on the frame data; a display that comprises a screen that displays the image based on the image data generated by the image processor; a partial enlargement information acquirer that acquires partial enlargement information of a visual field, the partial enlargement information including a distance from a spectacle lens wearer to the screen of the display and a dimension of the screen, wherein a processing mode of the image processor includes: an entire dis

Abstract: A combined spectacle lens including a combination of a basic lens and an auxiliary lens, the basic lens formed with a progressive-power surface having a first power portion having a power for viewing an object at a predetermined distance, a second power portion having a power different from that in the first power portion, and a progressive portion in which the power is progressively changed from the first power portion to the second power portion on either one or both of refractive surfaces on an object side and an eyeball side, wherein a resultant power obtained by combining a basic lens power of the basic lens and an auxiliary lens power of the auxiliary lens is partly or entirely different from that of the basic lens power.

Abstract: A simulation apparatus includes: a design data acquiring unit that acquires lens design data; a lens design unit that designs a lens on the basis of the lens design data; an image data acquiring unit that acquires image data corresponding to a lens user's visual sense; a visual motion characteristic data acquiring unit that acquires visual motion characteristic data regarding the motion of head and eyes when the lens user moves the eyes to various observation objects; an image processing unit that creates processing image data which is the image data seen through the design lens designed by the lens design unit; an image moving unit that moves the processing image data created by the image processing unit; an image data control unit that controls a movement amount of the processing image data, which is moved by the image moving unit, on the basis of the visual motion characteristic data; and a display unit that displays the processing image data.

Abstract: A simulation apparatus includes a design unit which designs a spectacle lens in accordance with a lens wearer's vision, a virtual space construction unit which constructs a virtual space, a viewpoint setting unit which sets a viewpoint in the virtual space, an image compilation unit which compiles a basic image representing a field of view at the viewpoint, an intermediate processing unit which processes the basic image in accordance with the vision, and compiles an intermediate image representing a field of view at the viewpoint with the lens wearer's unaided eye, a wearing condition processing unit which processes the intermediate image, and compiles a wearing condition image representing a field of view at the viewpoint obtained when the lens wearer wears the spectacle lens, a display unit which displays the wearing condition image, a viewpoint movement unit which moves the viewpoint in the virtual space, and a movement behavior setting unit which sets a movement behavior of the viewpoint, wherein the view

Abstract: A lens order system, includes: a server unit, including: a data recognizer that recognizes lens design detail data relating to design details of a lens; an image storage that stores object image data relating to an image of an object; an image recognizer that recognizes the object image data based on the lens design detail data; and an order reception section that recognizes order data relating to an order for a designed lens and generates order reception data, and a terminal unit connected with the server unit in a data transmittable manner, the terminal unit including: a data acquiring section that acquires the lens design detail data; a lens design section that designs the lens based on the lens design detail data; an image processor that superposes lens image data relating to an image of the designed lens designed by the lens design section on the object image data sent from the server unit and generates processed image data in which a superposing portion of the object image data and the lens image data i

Abstract: A lens order system, includes: a server unit including: a data recognizer that recognizes lens design detail data on setting details of a lens; an image data recognizer that recognizes image data on an image; a lens design section that designs the lens based on the lens design detail data; an image processor that creates processed image data in which lens image data on an image of the designed lens is superposed on the image data and a superposing portion of the image data and the lens image data is image-processed to show a vision of the image data through the designed lens; and an order reception section that recognizes order data on an order of the designed lens and generates order reception data; and a terminal unit connected with the server unit in a data transmittable manner, the terminal unit including: a data acquiring section that acquires the lens design detail data; a display controller that recognizes and displays on a display the processed image data sent from the server unit; and an order sectio

Abstract: A central processing unit of a calculation server apparatus includes a reference design data selection unit for selecting reference design data from a plurality of reference design data stored in reference design data storage of storage memory, and an arrange design unit 123 for processing the reference design data so acquired on the basis of prescription data. The reference design data has point groups having coordinates of points and obtained by dividing a progressive surface as a reference into a lattice form.

Abstract: A method for providing design data and a system for providing design data that enable a lens processor to manufacture a desired inner-surface progressive addition lens corresponding to prescription data. A design data providing system is a system such that a design data creator provides design data of an inner-surface progressive addition lens to a lens processor in the case where the lens processor has agreed upon a contract to the effect that the lens processor receives provision of the design data of the inner-surface progressive addition lens from the design data creator on the condition that the lens processor pays a consideration. The design data providing system has a server device as a host computer device, a terminal computer device, and a network for connecting the server device to the terminal computer device.

Abstract: A combined spectacle lens including a combination of a basic lens and an auxiliary lens, the basic lens formed with a progressive-power surface having a first power portion having a power for viewing an object at a predetermined distance, a second power portion having a power different from that in the first power portion, and a progressive portion in which the power is progressively changed from the first power portion to the second power portion on either one or both of refractive surfaces on an object side and an eyeball side, wherein a resultant power obtained by combining a basic lens power of the basic lens and an auxiliary lens power of the auxiliary lens is partly or entirely different from that of the basic lens power.

Abstract: A progressive addition power lens with a length of the intermediate corridor in the range of 22 to 28 mm, and a clear visual region, which is defined as a region where astigmatism is 0.5 diopters or less, has a horizontally maximum width thereof in the distant dioptric power region, which is twice as thick as or less than a horizontally minimum width in the intermediate corridor. Furthermore, the clear visual region defined as a region where astigmatism is 0.5 diopters or less has a width of 30 mm or more horizontally in the near dioptric power region. In addition, a position, where astigmatism distributed at the sides of the lens has the maximum value, is located in an almost horizontal direction with a far point positioned above the intermediate corridor or is located above the far point.

Abstract: A method for providing design data and a system for providing design data that enable a lens processor to manufacture a desired inner-surface progressive addition lens corresponding to prescription data. A design data providing system is a system such that a design data creator provides design data of an inner-surface progressive addition lens to a lens processor in the case where the lens processor has agreed upon a contract to the effect that the lens processor receives provision of the design data of the inner-surface progressive addition lens from the design data creator on the condition that the lens processor pays a consideration. The design data providing system has a server device as a host computer device, a terminal computer device, and a network for connecting the server device to the terminal computer device.