| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 359720000 | Asymmetric (e.g., prismatic or eccentric, etc.) | 8 |
| 20090141369 | Single Prism Aberration Compensation - System and method for utilizing two prisms spatially separated is provided. The two prisms spatially separated allows the two prisms typically found in a TIR optical relay system to be spatially separated. In an embodiment, one or more optical relay lenses are interposed between the two prisms. The prism positioned on the object side may be integrated into one or more of the optical relay lenses, thereby further simplifying the optical relay design. In another embodiment, the one or more optical relay lenses may have an optical axis that is offset from the optical axis of incoming light to cause a pupil shift. An aspherical lens may be included to correct for the pupil shift and create a more uniform illumination image. | 06-04-2009 |
| 20090296235 | OBJECTIVE OPTICAL SYSTEM FOR ENDOSCOPES - An objective optical system for endoscopes has, in order form the object side, a single lens with negative power, a cemented lens with positive power, and an image sensor unit. The cemented lens has a plano-convex lens, located at the image-side end, with a convex surface facing the image side and an aperture stop placed proximate to a cemented portion and the image sensor unit includes an optically cemented body of at least one optical part, a path bending prism, and a solid-state image sensor to satisfy the following conditions: | 12-03-2009 |
| 20100290134 | ABBE PRISM LENS WITH IMPROVED FOCUS AND REDUCED FLAIR - An Abbe prism lens and lens array are disclosed. The lens comprises front lenses disposed on a front surface of the Abbe prism, rear lenses disposed on a rear surface of the Abbe prism, a front bottom reflecting surface, a rear bottom reflecting surface, a left top reflecting surface, and a right top reflecting surface. An aperture cover is positioned over the front surface of the Abbe prism lens and a field cover is positioned over the rear surface of the Abbe prism lens. The aperture cover comprises aperture holes encircling the aspherical front lenses. The field cover comprises field holes encircling the aspherical rear lenses. Light enters the Abbe prism lens and reflects off the front bottom reflecting surface, reflects off the left top reflecting surface and the right top reflecting surface, reflects off the rear bottom reflecting surface, and exits the rear lens of the Abbe prism lens. | 11-18-2010 |
| 20120081800 | OPTICAL SEE-THROUGH FREE-FORM HEAD-MOUNTED DISPLAY - A see-through free-form head-mounted display including a wedge-shaped prism-lens having free-form surfaces and low F-number is provided. | 04-05-2012 |
| 20130016437 | LENSAANM Firth; PaulAACI Nr TotnesAACO GBAAGP Firth; Paul Nr Totnes GB - The invention relates to a lens comprising two or more seating surfaces and an optical axis offset from the centre of the lens such that the optical axis is spaced by a first distance from a first seating surface and by a second distance from a second seating surface. The first and second distances are different so that the lens can be orientated to provide at least two different optical axis heights depending upon which seating surface is chosen to seat the lens. | 01-17-2013 |
| 20140009845 | OPTICAL SEE-THROUGH FREE-FORM HEAD-MOUNTED DISPLAY - A see-through free-form head-mounted display including a wedge-shaped prism-lens having free-form surfaces and low F-number is provided. | 01-09-2014 |
| 20140254032 | Asymmetric Aberration Correcting Lens - An asymmetric aberration correcting lens is described. In one or more implementations, a lens includes multiple lens elements that are configured to focus an image from an imaging component. The multiple lens elements include an optical lens element that is configured to redirect the image so that the image passes through the lens. Further, the multiple lens elements include an asymmetric element configured to correct asymmetric aberration caused by the imaging component. | 09-11-2014 |
| 20160202393 | LENS ARRAY OPTICAL SYSTEM | 07-14-2016 |
