| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359744000 | Afocal (e.g., Galilean telescopes, etc.) | 6 |
| 20080239514 | Lens system and projector utilizing the same - A high-performance lens system including lens elements of small diameters for projecting on to a screen or the like in an enlarged fashion images from light valves such as mainly DMDs (Digital Micromirror Devices) for forming images by changing reflecting directions of light is provided. | 10-02-2008 |
| 20090213473 | Telescopes for simultaneous clear viewing of objects and areas both near and distant - A telescope that provides for simultaneous clear viewing of objects or areas at various distances may be either Galilean or astronomical. The telescope may be mounted on or into any mechanism or device used for targeting or aiming. Such devices may include iron sights of small arms weapons, and cameras and telescopes, which may be either electrically or manually focused. These miniature scopes are engineered to maximize the clear depth-of-field viewing by the eye regardless of vision irregularities, such as Presbyopia, Myopia, Hyperopic, Astigmatism, or combinations of these, in conjunction with or without spectacle lens corrections. This aiming scope/device may be placed on a pair of spectacles in a very close proximity to the eye cornea. Other maximized scope image characteristics that occur are field-of-view, luminosity, and unmagnified and unbroken or distorted viewing field. Clearly detailed simultaneous viewing of images of all objects or areas at almost all distances forward of the objective lens is readily apparent to the scope user. Such objects include sighting devices forward of the scope on guns, bows, cameras, telescopes, and any target seen within the scope. Most reticles used in conjunction with this invention will also be observed in the scope. | 08-27-2009 |
| 20090237810 | Afocal galilean attachement lens with high pupil magnification - An afocal Galilean attachment lens is disclosed, with the lens comprising, along an optical axis, a first lens group with overall negative optical power and a second lens group with overall positive power. The first and second lens groups are arranged to define a Galilean configuration. The lens also has exit and an entrance pupils with respective diameters D | 09-24-2009 |
| 20100110568 | MODULAR AFOCAL VARIATOR OPTICAL SYSTEM PROVIDING FOCUS WITH CONSTANT MAGNIFICATION - The present invention provides optical systems containing an afocal variator able to impart focus means to the optical system, as well as essentially constant magnification throughout the focal translation. The present application teaches a specific formula or set of spacing requirements for the positioning of the afocal variator that can be used with any afocal variator optical lens system comprised of various lens combinations. Provided that the formula for spacing the afocal variator within the optical system is utilized, the afocal variator acts not only to focus the optical system but maintains substantially constant magnification during the translation of focus. | 05-06-2010 |
| 20100321799 | OPTICAL SYSTEM FOR PROCESSING A LIGHT BEAM - Optical system for processing a light beam comprises first and second optical means that are convergent and divergent respectively and form an afocal optical device. The first optical means comprises a single convergent lens. According to the invention, this convergent lens provides an order 0 beam and an order 2 beam resulting from the light beam to be processed passing through this lens after having been subjected to a 0 reflection and 2 reflections respectively on the lens faces, and the lens is optimised for the order 2 beam and has an aperture f/# less than 4 for this order 2 beam, with a wave front quality less than λ peak-to-valley, where λ is the wavelength of the light beam to be processed. | 12-23-2010 |
| 20110304927 | COMPLEX MODULAR AFOCAL VARIATOR WITH SPHERICAL AND CHROMATIC ABERRATION CORRECTION - The present invention provides a complex modular afocal variator in which a modular afocal variator is supplemented with additional optics to form a more complex, but still modular afocal variator system, that can impart internal focusing as well as active spherical and chromatic aberration corrective improvement. | 12-15-2011 |
