Patents Assigned to Sunsoft Corp.
  • Patent number: 4971433
    Abstract: The invention discloses a method of making a soft contact lens that will change the appearance of a dark brown eye to a light blue or green. The lens is made by dying the iris area of the convex (front lens surface) the desired transparent color. A white, light reflecting compound is precipitated in the iris area of the concave lens surface. The lens is placed on the cornea of a dark colored eye and the light colored concave (back lens surface) is viewed through the transparent dyed colored convex surface providing an apparent new color to the eye.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: November 20, 1990
    Assignee: Sunsoft Corp.
    Inventor: Charles W. Neefe
  • Patent number: 4903052
    Abstract: The invention is a method of making a cosmetic contact lens that changes the apparent color of the eye. This is accomplished by dying the iris area of the convex lens surface the desired transparent color. The convex surface is expanded by a swelling agent. The swelling agent increases the pore size allowing the precipitating solution to move deeper into the convex lens surface below the dyed surface layer. The precipitating solution is reacted to form an insoluble light reflecting layer. When the lens is placed on the eye, the opaque light reflecting layer is viewed through the transparent dyed surface layer changing the apparent color of the eye.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: February 20, 1990
    Assignee: Sunsoft Corp.
    Inventor: Charles W. Neefe
  • Patent number: 4867552
    Abstract: The invention is a cosmetic contact lens that alters the apparent color of the eye. The lens has a thin layer of dye on the convex surface. The dye being the color of the desired color change. Below the surface dye layer is a deeper layer of light reflecting material. The opaque light reflecting material is a light color and is placed behind the dyed transparent surface layer. When the lens is in place on the eye the light reflecting layer is viewed through the transparent dyed surface layer to provide the apparent eye color change.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: September 19, 1989
    Assignee: Sunsoft Corp.
    Inventor: Charles W. Neefe
  • Patent number: 4865439
    Abstract: The invention is a method of making a cosmetic contact lens that changes the apparent color of the eye. This is accomplished by the following steps. The convex lens surface is expanded and distorted by a swelling agent. The swelling agent increases the pore size allowing the precipitating solution to move deeper into the convex lens surface. The precipitating solution is reacted to form an insoluble light reflecting iris pattern layer. The iris area of the convex lens surface is dyed the desired transparent color. When the lens is placed on the eye, the opaque light reflecting layer is viewed through the transparent dyed surface layer changing the apparent color of the eye.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: September 12, 1989
    Assignee: Sunsoft Corp.
    Inventor: Charles W. Neefe
  • Patent number: 4865440
    Abstract: The invention is a method of making a colored cosmetic lens that will change the color of a dark colored eye to a light color. This is achieved by masking the area which are not to be colored, the pupil and periphery beyond the iris. A solution containing a contact lens dye, an expanding or swelling agent and a precipitating agent is prepared. The water soluble precipitating agent is capable of forming an insoluble precipitant when properly reacted. The lens and mask fixture are immersed in the three part solution allowing the solution to swell and enter the surface of the lens iris area. The dye and precipitating agent enter the expanded lens iris area. The lens and mask fixture are transferred from the first three part solution to the second reaction precipitating solution. A colored insoluble precipitant is formed in the lens iris area. The lens is removed from the mask fixture and washed to remove all unreacted materials.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: September 12, 1989
    Assignee: Sunsoft Corp.
    Inventor: Charles W. Neefe
  • Patent number: 4840477
    Abstract: A cosmetic contact lens that changes the apparent color of the eye. The lens will change a dark brown eye to light blue or green. This color change is accomplished by having a transparent dyed iris area on the convex lens surface. A light reflecting material is precipitated in the iris area of the concave lens surface. The light colored precipitated iris area on the concave surface may be opaque. The lens pupil area is clear colorless transparent or a dyed transparent color. The peripheral lens area outside the iris area is always clear transparent. When the lens is viewed on the eye the light reflecting concave iris area is viewed through the convex transparent iris color area providing the apparent eye color change.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: June 20, 1989
    Assignee: Sunsoft Corp.
    Inventor: Charles W. Neefe