Bizarre Patents
Combination Beverage Container and Spittoon
A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.
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| Number | Title | Issue Date |
| 5457554 | 3-D printing technology based on selective reflecting polarizing media An apparatus for generating a three-dimensional image including two unmultiplexed images in stereoscopic relationship with each other. One of the images is of a material reflective of a given wavelength of left-handed (or right-handed) circularly polarize... | 10/10/1995 |
| 5392140 | Optical device with two lens arrays with the second array pitch an integral multiple of the first array pitch A three-dimensional display comprises a spatial light modulator (13), such as a liquid crystal display, sandwiched between first and second lenticular screens (12, 16). The pitch of the lenticules of the second screen (16) is an integral multiple of that ... | 02/21/1995 |
| 5327269 | Fast switching 270° twisted nematic liquid crystal device and eyewear incorporating the device A fast switching liquid crystal device, a method for making such a device, and eyewear incorporating the device for use in a stereoscopic viewing system. The device achieves a fast response time and high contrast by increasing the twist of the nematic mat... | 07/05/1994 |
| 5311220 | Autostereoscopic display An autostereoscopic display with an optical element inserted near the transmissive display has improved brightness of the display, and optionally has incorporated therein a head position sensing device capable of sensing the position of at least one obser... | 05/10/1994 |
| 5181133 | Drive method for twisted nematic liquid crystal shutters for stereoscopic and other applications A method for overcoming optical artifacts which are an intrinsic part of the performance of twisted nematic liquid crystal shutter devices. When power is shut off from a conventional shutter device of this type, the device exhibits a brief periodic flicke... | 01/19/1993 |
| 5096520 | Method for producing high efficiency polarizing filters The manufacturing cost of color liquid crystal displays depends on improving the yield of making color filter arrays and the polarization efficiency of polarizers to increase the brightnesse, and to reduce the power of the back light. The invention descri... | 03/17/1992 |
| 5007715 | Display and pick-up device for stereoscopic picture display For stereoscopic display arbitrarily formed sub-pictures (for example divided into columns) are mixed. This is possible by covering a light-sensitive pick-up unit (CCD) (23) on which the sub-pictures are projected with an LCD (21) in such a way that a 1:1... | 04/16/1991 |
| 4982278 | Binocular stereovision A binocular/goggle stereo vision device is provided which when worn on the head of a person will send stereoscopic images and stereophonic sounds directly to the eyes and ears of the person. The stereoscopic images are carried by a pair of liquid crystal ... | 01/01/1991 |
| 4978202 | Laser scanning system for displaying a three-dimensional color image A laser scanning system includes a read light emitting member, a green light emitting member, a blue emitting member, a scanning light member, and a controller. The red, green and blue emitting light members include an optical-frequency modulator and a li... | 12/18/1990 |
| 4957351 | Stereo image display device A stereo display device uses a display unit having a pair of substrates each being formed with a pattern of electrodes and a material filled in a space between the substrates. The material has an electrically controllable optical characteristic for effect... | 09/18/1990 |
| 4953949 | Device for forming a picture For forming a composite picture, at least two transparent constituent pictures (12, 13) are arranged on behind the other with the transmittances of the individual picture elements (21-25) being selected in such a way that the average value of the products... | 09/04/1990 |
| 4907860 | Three dimensional viewing glasses For three-dimensional viewing of television and movies, in the format wherein left-eye and right-eye images are presented alternately on the screen, a pair of 3-D viewing glasses have correspondingly alternating on/off left and right lenses. The lenses ea... | 03/13/1990 |
| 4884876 | Achromatic liquid crystal shutter for stereoscopic and other applications An achromatic liquid-crystal shutter with high dynamic range, good transmission, and high speed. The inventive shutter reduces the phenomenon of "ghosting" (image doubling) that typically occurs in conventional plano-stereoscopic CRT displays due to the l... | 12/05/1989 |
| 4870486 | Virtual stereographic display system A virtual stereographic display system which includes a display image surface, a polarizer disposed before the display image surface, a liquid crystal cell in which ferroelectric smectic liquid crystal is aligned, and disposed before the polarizer, a driv... | 09/26/1989 |
| 4792850 | Method and system employing a push-pull liquid crystal modulator A system and method employing a push-pull modulator for stereoscopic image selection. The modulator includes a pair of surface mode liquid crystal cells having orthogonal rub axes, and a linear polarizer having absorption axis bisecting the orthogonal rub... | 12/20/1988 |
| 4781440 | Stereoscopic optical instruments utilizing liquid crystal A stereoscopic optical instrument employing liquid crystal lenses such as a pair of spectacles and stereoscopic optical devices has a construction in which left and right liquid crystal lenses are incorporated thereinto such that liquid crystal molecular ... | 11/01/1988 |
| 4698668 | Apparatus for influencing the presentation of visual information An electro-optical device for influencing the presentation of visual information when placed before the eyes of an observer, comprising one or more cholesteric liquid crystal cells which, under the control of an electric driving signal, can be rapidly swi... | 10/06/1987 |
| 4647966 | Stereoscopic three dimensional large screen liquid crystal display A three dimensional large screen liquid crystal projection display utilizes wo liquid crystal light valves in tandem to produce polarization-type stereoscopic images in a large screen display format. Each light valve, driven separately by video input deriv... | 03/03/1987 |
| 4623219 | Real-time high-resolution 3-D large-screen display using laser-activated liquid crystal light valves A number of viewers wearing polarized glasses are presented real-time, hiresolution, three-dimensional projected images on a distant screen at video image signal rates. Two laser raster scanners each activate a separate one of two liquid crystal light va... | 11/18/1986 |
| 4561723 | Electronic stereoscopic viewing device An electronic stereoscopic viewing device has an electronic signal generator which is coupled electronically to a liquid crystal display screen. The display screen upon receipt of a signal from the signal generator displays first and second views of an im... | 12/31/1985 |
| 4556986 | Optical stereo video signal processor An optical video signal processor which produces a two-dimensional cross-correlation in real time of images received by a stereo camera system. The optical image of each camera (12, 14) is projected on respective liquid crystal light valves (28, 48). The ... | 12/03/1985 |
| 4127322 | High brightness full color image light valve projection system There is disclosed an electro-optical system for real time projection of very high brightness, full color pictorial images from television or other program sources onto a large display screen from a set of three reflection type AC driven field effect mode... | 11/28/1978 |
| 4110014 | Parallel and series electro-optic viewing and recording apparatus An electro-optic device having utility in (a) the display of parallel information such as a projected microimage, and (b) both the display and recording of series information such as TV signals. The device includes a photoconductive sheet and an electro-o... | 08/29/1978 |
| 4048358 | Liquid crystal devices A liquid crystal device includes a sheet of plastic material having an open pore structure in which a liquid crystal material has been introduced. The liquid crystal material may be dichroic and contain one or more dyes which may be dichroic. The liquid c... | 09/13/1977 |
