| Patent No. | Patent Title: |
| 4772095 | Symmetrical beamsplitter |
| 4765727 | Color-corrected lens systems |
| 4749267 | Large aperture ratio zoom lens system |
| 4725131 | Laser combiner |
| 4707088 | Lorgnette eyeglass frame |
| 4660948 | Eye chart |
| 4660945 | Methods and apparatus for accommodation training |
| 4636048 | Adjustable eyeglass holder for caps and hats |
| 4632528 | Method for determining refractive index of an object |
| 4626076 | Zoom lens |
| 4620778 | Frame for glasses which permits the mounting of accessory element... |
| 4601540 | Method and apparatus for the turning on and off of a signal in op... |
| 4597648 | Keratometer |
| 4597649 | Information display apparatus for ophthalmic slit lamps |
| 4589739 | Television magnification apparatus |
| 4550987 | Small size telephoto lens |
| 4435042 | Vehicle mirror and support assembly |
| 4387969 | Single-lens reflex optical system for endoscopes |