Matches 101 - 150 out of 271 < 1 2 3 4 5 6 >
Match Document Document Title
5513031 Adjustable optical component  
An adjustable optical component, for example an optical slit having adjustable slit width, comprises a movable member for providing an optical function, for example a slit and/or a shutter, and...
5506695 Light shutter apparatus for a photographic film scanner  
A low cost, compact light shutter apparatus for a photographic film scanner in which an elongate light shutter mechanism has a curvilinear surface nested in a mating, curvilinear recess formed in...
5488508 Vignetting technique for improving appearance of partially overlapped binocular displays  
Aperture stops are positioned in the optical train of a partially overlapped binocular display in a such a manner that overlapping portions the binocular boundaries of the left and right fields of...
5481393 Pupil modulation optical system  
A pupil modulation optical system which enables pupil modulation modes to be readily changed over from one to another and makes it possible to readily form an image of high resolution and high...
5451780 Device for setting slit widths in the beam path of spectrometers  
A slit is disposed as diaphragm in the beam path of a mass spectrometer. The slit width is to be variable in the simplest possible manner. Manual, electric motor-driven, thermoelectric or...
5448399 Optical system for scanning microscope  
An optical system for a scanning probe microscope provides both an optical on-axis view and an optical oblique view of the sample by means of two optical paths each providing an image to a CCD...
5446583 Surgical light interruption device  
A surgical light interruption device which interrupts light transmitted to a patient's eye through a surgical microscope at a predetermined interval for a predetermined frequency to reduce light...
5438452 Blooming protection for a nightsight  
A blooming protection for a nightsight comprises a cylindrical cover of opaque material, which cover has an opening through which light can pass. The cover is plugged onto the tube on the objective...
5400170 Method of controlling size of light beam pulses used to form respective plural pixels on a print medium  
Plural successive light beam pulses are directed through a continuously adjustable aperture. An actuator is driven to change an aperture diameter of the continuously adjustable aperture for each of...
5394263 Method and apparatus for attenuating a light beam  
A light valve for attenuating a collimated light beam contains a focusing lens, a light vane and motor control. The focusing lens contains a focal length and lens diameter. The focusing lens...
5384662 Precision optical slit for high heat load or ultra high vacuum  
This invention relates generally to slits used in optics that must be precisely aligned and adjusted. The optical slits of the present invention are useful in x-ray optics, x-ray beam lines,...
5373352 Original scanning device  
An original scanning device includes an original mount for mounting an original, a movable scanning device for scanning the original mounted on the original mount while the movable scanning device...
5299053 Variable shutter illumination system for microscope  
An opthalmic microscope is provided having a variable shutter illumination system which decreases the amount of light from the light source passing through the shutter to the field of view. When a...
5283683 Windshield visor  
A windshield visor or visor attachment having a fixed panel and an extendible panel which may be opaque, mirrored, transparent, tinted or photogray. The extendible panel protects the driver against...
5282075 Quantity-of-light adjusting device  
A quantity-of-light adjusting device comprises a driving part for driving a quantity-of-light adjusting member according to a change of the quantity of light passing through an aperture provided in...
5275155 Apparatus to provide pulses of light  
A mechanical apparatus to provide pulses of light for tanning. One embodiment of the apparatus comprises a light source radiating light; a hollow cylinder having an inner and an outer cylindrical...
5260718 Liquid crystal shutter xerographic printer with offset configuration lamp aperture and copier/printer with optically aligned lamps, image bars, and lenses  
A xerographic printer especially suitable for printing copies of oversized original documents is enabled by staggering a plurality of image bars in optical alignment with a linear projection means...
5258874 Friction-free bistable device for use in space application, in particular for closing an aperture of a space application optical instrument  
Device for the assembly and movement control of a mobile element that moves with respect to a support between two extreme positions, characterized in that it includes an arm pivotable around a...
5235457 Kit for converting a standard microscope into a single aperture confocal scanning epi-illumination microscope  
A kit to convert a standard epi-illumination microscope into a single aperture confocal scanning epi-illumination microscope comprises an assembly including, in one embodiment, a pair of...
5233459 Electric display device  
A bistable electrostatic light valve display in which a movable electrode is disposed opposite a fixed electrode and is biased to move in a preferred direction upon application of an electric field...
5233458 Method and apparatus to reduce binocular rivalry in a partial overlap binocular display  
A method and apparatus for reducing the effects of binocular rivalry in a partially overlapped binocular image are disclosed. A false contour line is generated either electronically or mechanically...
5155544 Foucault method for testing an optical surface  
The Foucault or knife-edge method may be employed for testing an optical surface defined by an imaging device, for example, a mirror surface, to ascertain its characteristics, for example, whether...
5117302 High dynamic range electro-optical shutter for steroscopic and other applications  
A high dynamic range electro-optical shutter for stereoscopic and other applications, and a method for increasing the dynamic range of an electro-optical shutter system. The shutter of the...
5115333 Variable laser beam attenuator  
An attenuator for varying the power of a laser scanning light beam includes a bracket having a reduced portion intermediate its ends enabling one end to be rotated around its other end. A glass...
5101295 Rotating slit aperture for scanning microscopy  
An improved aperture for a scanning microscope as is used to mask either or both of the incident light and reflected light includes a plurality of continuous curvilinear slits spaced evenly about a...
5099354 Kit for converting a slit lamp biomicroscope into a single aperture confocal scanning biomicroscope  
A single aperture confocal scanning biomicroscope is disclosed with an illumination system having a pair of lenses surrounding an aperture for collimating a field of light, a pivotally mounted flap...
5080309 Removably positionable visor apparatus and suction release mechanism  
The disclosure relates to a removably positionable visor and suction release mechanism which are particularly adapted for a vehicle windshield, windows, and smooth surfaces. The visor includes a...
5062689 Electrostatically actuatable light modulating device  
The electrostatically actuatable light modulator utilizes an opaque substrate plate patterned with an array of aperture cells, the cells comprised of physically positionable dielectric shutters and...
5060283 Method and system for reading images with a movable light intercepting plate  
An image reading method and apparatus includes detecting an optimal position of a slot of a light intercepting plate by reading an output level from a light sensor which receives light passing...
5028120 Day-night rear view mirror  
A day-night mirror assembly for a motor vehicle having a housing with a front opening, a first sheet of transparent material at the opening and second sheet which is located behind the first sheet...
5004337 Modified Foucault for testing an imaging device in terms of the encircled energy test  
A novel method for quantitatively assessing an imaging device in terms of the classical encircled energy test. The method of the present invention provides this capability by a novel adaptation of...
4943815 Laser printer with light-exposure prevention  
When cover (8) of the laser printer (3) is closed, absence of the replaceable cartridge (15) or the shroud assembly (9) will activate both an electrical and a mechanical interlock. A moveable...
4923284 Anti-dazzle screen  
An anti-dazzle screen is formed from a strip provided with notches (4, 5) issuing in alternation from opposing upper and lower edges. The notches form branches (8) therebetween and terminate short...
4923283 Electroscopic fluid display  
An electroscopic fluid display comprises substrates (1, 2) having fixed electrodes (12, 22), and movable electrodes (3) between the substrates, the electrodes (12, 22, 3) being provided on the free...
4910739 Adjustable aperture  
An adjustable aperture is formed by a plurality of spring members secured over a passage on a frame, each spring member having a first end secured to the frame, a body extending into the passage...
4900131 Adjustable photographic device  
An adjustable photographic device includes a light transmission element for allowing light from an object to be photographed to pass therethrough, and light sources positioned around the periphery...
4897682 Stop device for photographic camera  
A stop device having a plurality of stop blades pivotably disposed about an optical axis with an adjacent pair partially overlapping each other and adapted for defining an aperture opening with...
4884881 Single aperture confocal scanning epi-illumination microscope  
A single aperture confocal scanning epi-illumination microscope comprises an assembly including, in one embodiment, a pair of intermediate lenses to create a second field plane conjugate to the...
4884880 Kit for converting a standard microscope into a single aperture confocal scanning epi-illumination microscope  
A kit to convert a standard epi-illumination microscope into a single aperture confocal scanning epi-illumination microscope comprises an assembly including, in one embodiment, a pair of...
4881802 Combined bright field-dark field incident light illumination apparatus  
A combined bright field-dark field incident light apparatus 10 for a microscope instrument is described, in which in the dark field illumination the plane of the field diaphragm LF is projected...
4840458 Fixed shutter construction for a split-sphere observatory dome  
A split-sphere observatory enclosure wherein the antrum segment is capped with a shutter lid. The rotor which is the active shutter segment sweeps through an elongate curved aperture in the shutter...
4812913 Diaphragm arrangement for opto-electronic scanning of originals  
Diaphragm arrangement for point-by-point electro-optical scanning of originals, whereby the scan point is composed of a central main field and of a surrounding field surrounding the main field. A...
4810076 Selective shading device and an optical device using the same  
A selective shading device has a number of shading plates or planar members and a supporting body that holds the plates or planar members in such a manner that they are arrranged radially with...
4770518 Apparatus for indicating intensity of an illuminator in an optical instrument  
A mechanical indicator for indicating the intensity of an illuminator is described for use in an optical instrument. The indicator includes a cover plate having a plurality of apertures and an...
4763989 Variable imaging mask for delineating the composition of a visible area  
A portable viewing mask for delineating an image to be recorded or re-composed artistically, photographically or by electro-magnetic means having a variable size viewing aperture. The mask consists...
4610524 Diaphragm blades  
Diaphragm blades for iris diaphragms of optical instrument each with a bearing pin and a control pin are described, in which, as a bearing pin and/or control pin, at least one body with a guide...
4569575 Electrodes for a device operating by electrically controlled fluid displacement  
The invention relates to devices by means of which it is possible to cause fluid globules to circulate within a capillary space by means of pairs of electrodes establishing capture sites. The...
4560238 Light transmission control apparatus  
An apparatus for controlling the amount of converged light having a high energy density which is transmitted through a predetermined optical path. The apparatus or light switch is disposed in the...
4462006 Method for stabilizing the resonance frequency of a rubidium frequency standard  
A method and apparatus for stabilizing the resonance frequency of a rubidium frequency standard utilizes control of the intensity of the rubidium-87 lightbeam between the rubidium lamp and rubidium...
4329014 Incident light illumination instrument for selective light and dark field illumination  
An incident light illumination apparatus for generating light and dark field illumination along an optical axis. The illumination apparatus is coupled to a stage arm of a microscope and a...
Matches 101 - 150 out of 271 < 1 2 3 4 5 6 >