Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 5559630 | Polarized light microscopy In the establishment of interference colors in weakly birefringent materials within living organisms, in fixed tissues or in preparations of liquid crystals, a compensating birefringent plate is positioned in series with the object in the direction of the... | 09/24/1996 |
| 5452089 | Object locator A search light employs variable polarization angles to enhance target identification. The search light shines a beam of light which may be directed across terrain. The beam of light is alternated in polarization angles at a rate of about five to twelve cy... | 09/19/1995 |
| 5452382 | Optical waveguide device and optical microscope using the same An optical waveguide device formed by a material showing anisotropy for refraction index and an optical instrument using the same device. The device comprises an electro-optic single crystal substrate on which are formed a first core portion higher in ref... | 09/19/1995 |
| 5420717 | Adjustable-contrast microscope An interference microscope includes a light source, a member for splitting up light from the light source into two components, a member for recombining the two components emerging from a sample, a polarizing plate whose transmission axis is oriented at a ... | 05/30/1995 |
| 5404225 | Object detector A device will assist in detecting man-made objects by using a liquid crystal retarder and a stationary polarizer. The liquid crystal retarder shifts impinging light 90 degrees between a nonrotated and a rotated mode. In the nonrotated mode, the retarder i... | 04/04/1995 |
| 5345308 | Object discriminator A device will detect man-made objects by using a polarizer mounted to a video camera. The polarizer rotates about an axis in front of a lens array of the video camera. The rotation of the polarizer alternately polarizes light received in proportion to the... | 09/06/1994 |
| 5303082 | Stereomicroscope including two pair of polarizers and a quarter wavelength plate A stereomicroscope comprising a pair of observation systems each comprising an objective lens and an eyepiece lens, a pair of light sources disposed above the objective lens for emitting a pair of light beams through a pair of beam splitters into the obse... | 04/12/1994 |
| 5264916 | Object detection system A device will detect man-made objects by using a polarizer. The polarizer rotates about an axis in front of a lens array. The rotation of the polarizer alternately polarizes light received in proportion to the speed of rotation. This produces flashing in ... | 11/23/1993 |
| 5253110 | Illumination optical arrangement An illumination optical arrangement which uses a laser light source to produce a uniform illumination which is high in brightness and substantially free of interference patterns. The illumination optical arrangement includes light source means for emittin... | 10/12/1993 |
| 5168157 | Scanning microscope with means for detecting a first and second polarized light beams along first and second optical receiving paths A scanning microscope comprises a sample supporting member for supporting a sample, and a light source for producing a light beam including a light component, which has been polarized linearly in a first direction, and a light component, which has been po... | 12/01/1992 |
| 5162648 | Confocal scanning interference microscope using reference beam A confocal scanning type of interference microscope comprises a sample supporting member on which a sample is supported, a light source which produces a light beam, and a light projecting optical system with which a small light spot of the light beam is f... | 11/10/1992 |
| 5122648 | Apparatus and method for automatically focusing an interference microscope Automatic focusing of an interference microscope is accomplished by directly sensing an interference pattern produced by a white light source with an auxiliary point detector. A beamsplitter intercepts part of the interference beam and directs it to the p... | 06/16/1992 |
| 5078482 | Resolution confocal microscope, and device fabrication method using same A new confocal microscope and a new device fabrication method in which linewidth control is achieved using the new confocal microscope are disclosed. This new confocal microscope has a configuration which achieves multiple passes, e.g., three, four, five,... | 01/07/1992 |
| 4964707 | Differential interference microscope The differential interference microscope comprises a beam splitter and a compensator, either one being made of a positive birefringent substance and the other being made of a negative birefringent substance, which are arranged in such a manner that the op... | 10/23/1990 |
| 4873653 | Microscope system for providing three-dimensional resolution A microscope with convolution wherein the light distribution is modulated within the space of double light cones generated by the optics of the microscope. The modulation is accomplished in space domain as opposed to modulation in the time domain used in ... | 10/10/1989 |
| 4802736 | Interferometers An interferometer which comprises: (1) a single, coherent light source; (2) a first converging lens positioned on the optical axis of said coherent light source; (3) a beam-splitting arrangement positioned on said optical axis and spaced from said first c... | 02/07/1989 |
| 4795246 | Differential interference contrast microscope using non-uniformly deformed plastic birefringent components In a differential interference contrast microscope, including a beam splitter and a compensator beam splitter, each of the beam splitters and the compensator comprise at least one non-uniformly deformed plastic birefringent component exhibiting linearly g... | 01/03/1989 |
| 4762405 | Inverted-design microscope An inverted-design microscope provided with a micromanipulator so as to be movable along the optical axis in interlocking with the movement of the objective lens for focusing and pricing in order that the micromanipulator may be operated minutely and simp... | 08/09/1988 |
| 4761066 | Stereoscopic optical system An optical system for producing stereoscopic imaging of a subject. The system includes an objective lens for producing an image of the subject, and right and left ocular lenses for viewing the image through right and left eyes, respectively. A polarizing ... | 08/02/1988 |
| 4756611 | Multiple-purpose microscope A multiple-purpose microscope comprising: a stage for placing a specimen; a revolver for carrying a plurality of objective lenses; a differential interference unit mounted adjacent to the revolver so as to be moved into and out of a path of light beam; an... | 07/12/1988 |
| 4678291 | Optical arrangement for microscopes To allow rapid change between the conoscopic observation method and the orthoscopic observation method in a microscope, while showing a small overall size and permitting and optically correct position of the Bertrand lens and the associated diaphragm, an ... | 07/07/1987 |
| 4663511 | Stereoscopic optical viewing system An improved optical system which provides the operator a stereoscopic viewing field and depth of vision, particularly suitable for use in various machines such as electron or laser beam welding and drilling machines. The system features two separate but i... | 05/05/1987 |
| 4512640 | Polarizing microscope A polarizing microscope comprises an orthoscopic system having an objective lens for forming the image of a sample, and a conoscopic system including polarizer means, analyzer means and an image forming lens disposed between the objective lens and the ima... | 04/23/1985 |
| 4255014 | Edge enhancement of phase phenomena A method and apparatus are described for viewing of phase phenomena by forming the image of an object by using the undiffracted beam and essentially only one of the sidebands and attenuating the undiffracted beam and the sideband at a rear focal plane of ... | 03/10/1981 |
| 4063804 | Optical harmonic microscope assembly and examination method An optical harmonic microscope assembly and an examination method which provides for focusing lased coherent light as an incident beam onto a specimen, disposing the optical path of a microscope and the incident beam at a relative angle in a range which i... | 12/20/1977 |
| 4062619 | Variable background intensity apparatus for imaging systems A variable background intensity control system employs a modulator plate having different density or transmittance regions located thereon. The modulator contains an area upon which an aperture slit or image is normally registered. By varying the position... | 12/13/1977 |
| 3972619 | Method and apparatus for surface analysis A method and apparatus are described for measuring anisotropy in the reflectivity within a region of a surface. The apparatus basically comprises a polarizing microscope which employs a rotating half-wave plate which rotates the polarization direction of ... | 08/03/1976 |
