Abstract: A progressive power eyeglass lens includes an object side surface that includes a first progressive surface, an eyeball side surface that includes a second progressive surface, and a pair of points that is passed by a light beam passing through a rotation center of an eyeball of an eyeglasses wearer, the pair of points including a first point that exists on a principal meridian on the eyeball side surface between a progressive start point to a progressive end point, and a second point that exists on a principal meridian on the object side surface.

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 spectacle lens design method for designing a spectacle lens, including setting a distance portion, a near portion, and a progressive portion which is disposed between the distance portion and the near portion; adding astigmatic power for canceling aberration produced by a bend angle of the spectacle frame; determining an aspherical surface addition quantity; and adding prismatic power for canceling prismatic power produced by the bend angle of the spectacle frame at the design reference point of the distance portion to the entire distance portion and prismatic power for cancelling prismatic produced by the bend angle of the spectacle frame at the design reference point of the near portion to the entire near portion on either the object side refractive surface or the eyeball side refractive surface of the spectacle lens.

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 method for designing a spectacle lens that includes an optical convex surface on an object side of the spectacle lens and an optical concave surface on an eye side of the spectacle lens and is mounted in a spectacle frame in a manner tilting with respect to a forward sight line, the optical convex surface being spherical, the optical concave surface being optically curved according to a prescription, the method including: defining a design reference point at an intersection of the optical concave surface and the forward sight line; and determining an angle formed by a tangent line at the design reference point and a perpendicular plane perpendicular to the forward sight line as a lens tilt angle ? with which the spectacle lens is mounted in the spectacle frame.

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 method of correcting the effects of a bend angle of 200 degrees or larger of spectacle frames, and astigmatism correcting characteristics in such spectacle frames. An exemplary embodiment of the present invention includes a design method for a spectacle lens mounted in a spectacle frame having a bend angle of 200 degrees or larger including an astigmatic power adding step, on the object side refractive surface or eyeball side refractive surface of the spectacle lens, for canceling astigmatic aberration caused by the bend angle of the spectacle frame, at a design reference point of the spectacle lens, and a step setting prismatic power by tilting the refractive surface, which is on an object side or an eyeball side, of the spectacle lens for canceling prismatic power caused by the bend angle of the spectacle frame, at the design reference point of the spectacle lens.

Abstract: A method for designing a spectacle lens that includes an optical convex surface on an object side of the spectacle lens and an optical concave surface on an eye side of the spectacle lens and is mounted in a spectacle frame in a manner tilting with respect to a forward sight line, the optical convex surface being spherical, the optical concave surface being optically curved according to a prescription, the method including: defining a design reference point at an intersection of the optical concave surface and the forward sight line; and determining an angle formed by a tangent line at the design reference point and a perpendicular plane perpendicular to the forward sight line as a lens tilt angle ? with which the spectacle lens is mounted in the spectacle frame.

Abstract: A spectacle lens design method for designing a spectacle lens attached to a spectacle frame having a bend angle of 200 degrees or larger includes: setting a distance portion, a near portion having power different from power of the distance portion, and a progressive portion which is disposed between the distance portion and the near portion and has power progressively varying on at least either an object side refractive surface or an eyeball side refractive surface included in the spectacle lens; adding astigmatic power for canceling aberration produced by the bend angle of the spectacle frame at a design reference point of the distance portion to the entire distance portion and astigmatic power for canceling aberration produced by the bend angle of the spectacle frame at a design reference point of the near portion to the entire near portion on either the object side refractive surface or the eyeball side refractive surface of the spectacle lens; determining an aspherical surface addition quantity which prov

Abstract: A method of designing a spectacle lens having a combined refracting surface in at least one of two refracting surfaces at object and eye sides structuring the spectacle lens, wherein the combined refracting surface has an astigmatic refracting surface combined with a progressive refracting surface having a distance-use area, a near-use area different in refractive power from the distance-use area and a progressive area having a refractive power progressively changing between those.

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 method of correcting the effects of a bend angle of 200 degrees or larger of spectacle frames, and astigmatism correcting characteristics in such spectacle frames. An exemplary embodiment of the present invention includes a design method for a spectacle lens mounted in a spectacle frame having a bend angle of 200 degrees or larger including an astigmatic power adding step, on the object side refractive surface or eyeball side refractive surface of the spectacle lens, for canceling astigmatic aberration caused by the bend angle of the spectacle frame, at a design reference point of the spectacle lens, and a step setting prismatic power by tilting the refractive surface, which is on an object side or an eyeball side, of the spectacle lens for canceling prismatic power caused by the bend angle of the spectacle frame, at the design reference point of the spectacle lens.