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| Number | Title | Issue Date |
| 5074646 | Planar reflective optical devices Alignment difficulties in optical computing arrangements are overcome by integrating the optical components on a single substrate and arranging the elements in a manner that causes them to interact with one another to perform the desired function. The sub... | 12/24/1991 |
| 5040886 | Matching optics for gaussian beams A system of matching optics for gaussian beams. The matching optics system is positioned between a light beam emitter (such as a laser) and the input optics of a second optics system whereby the output from the light beam emitter is converted into an opti... | 08/20/1991 |
| 5004321 | 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,... | 04/02/1991 |
| 4988177 | Light concentrating lens system A prosthesis for visually handicapped persons provides for collection and concentration of available light to thereby assist the visually handicapped with seeing under conditions of reduced or diffuse lighting. The prosthesis has a single or pair of tubul... | 01/29/1991 |
| 4960325 | Light protection apparatus and protective element subassembly therefor A light protection apparatus receives a beam of light having both a harmless light component and a harmful light component. The apparatus includes a housing having a forward end and a rear viewing end. A view aperture is located near the viewing end and r... | 10/02/1990 |
| 4934799 | Multi-lens focussing arrangement for laser graphics imaging apparatus An arrangement for focussing a laser beam onto the imaging surface of a laser graphics imaging apparatus includes a viewing stage having a focussing lens and an associated eye lens that are mutually displaceable along a first optical axis through which th... | 06/19/1990 |
| 4923293 | Optical system for masking out a component region of an image The invention relates to an optical system wherein a masking arrangement removes a component region from an overall region to be viewed while minimizing stray radiation. The improvement afforded by the optical system of the invention is provided by two me... | 05/08/1990 |
| 4902115 | Optical system for endoscopes In order to facilitate accommodation into a narrow space and enable to reserve an observation range wider than those conventionally available while assuring high reliability and brightness sufficient for practical use, the optical system for endoscopes co... | 02/20/1990 |
| 4730911 | Wide angle optical viewer This invention relates to a wide angle viewing system (V) which may be inserted into a high temperature environment, in particular, a furnace or burner (F). The superior interior wide angle view (A) yields pertinent information for use in diagnosing combu... | 03/15/1988 |
| 4662717 | Lens and lens holding devices A lens and a lens holding device make it possible to construct a compound lens or to secure a lens to a lens barrel by providing protrusions and/or depressions on a joint surface or surfaces of a lens and/or a lens contact surface of a lens barrel and int... | 05/05/1987 |
| 4660943 | Night vision systems A night vision system comprising a helmet (1) having a transparent visor (13 or 15) before or movable to a position before the eye positions (IL, IR) of an observer wearing the helmet and a night vision device (19) having two eye pieces (22L, 22R), one fo... | 04/28/1987 |
| 4626082 | Projecting device A projecting device comprising an array of axial element lens systems, wherein each element lens system includes a single bar lens having an axial length larger than the effective aperture and adapted to form an intermediate image of a pixel of the object... | 12/02/1986 |
| 4613216 | Device for observation through a wall in two opposite directions An episcope is provided which allows viewing in either the forward or rearward directions through the same episcope. A parallelogram shaped main optical unit has a forward facing first objective lens and a first eyepiece lens. Light entering through the f... | 09/23/1986 |
| 4526444 | Viewfinder apparatus A viewfinder assembly fabricated virtually exclusively of injection molded plastics includes a housing, four lens groups, four mirrors for folding the optical path and providing for proper image orientation, and mirror retainers. All of the components are... | 07/02/1985 |
| 4512641 | Compound eye projection device A compound eye projection device includes a first lens and a second lens equal in shape and power. These two lenses are disposed with their optical axis being coincident with each other and together constitute an element lens system. A plurality of such e... | 04/23/1985 |
| 4505554 | Illumination transmission system for format adaptation in projections The illumination of the regular window of a projector is transmitted by two positive acting lens groups of which the first one collects the illumination in the window and provides a near-parallel, slightly diverging beam; the second lens group receives th... | 03/19/1985 |
| 4413889 | Focusing device for microscopes A focusing device for microscopes provided with a light shielding plate having an aperture extending from the center to the outer edge and rotatable around an optical axis in the position of an exit pupil of an objective lens or its conjugate image in ord... | 11/08/1983 |
| 4274704 | Endoscopes incorporating a beam splitter This invention relates to endoscopes of the kind incorporating a beam splitter for direct observation and joint observation by means of a folded optical system substantially larger in diameter than the endoscope or for connection of a film or television c... | 06/23/1981 |
