Matches 51 - 100 out of 385 < 1 2 3 4 5 6 7 8 >
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6824284 Edge-lit optical element having a manifold and lamp assembly utilizing such element  
A lamp assembly including a number of light sources each utilized in conjunction with an optical element. The optical elements include a body of light transmitting material which further includes a...
6820983 Dichroic prism and method for manufacturing the same  
A dichroic prism 10 according to the present invention comprises first to fourth right angle prisms 12, 14, 16 and 18 respectively having first side faces 28, 34, 40 and 46 , and second...
6801359 Optical arrangement provided for a spectral fanning out of a light beam  
The invention relates to an optical arrangement provided for a spectral fanning out of a light beam ( 1 ), preferably the detection beam path of a confocal microscope, especially for the subsequent...
6799850 Image projecting apparatus having optical switch  
An image projecting apparatus has optical switches in first optical switch unit arranged in a square matrix arrangement, and a second optical switch unit of optical switches in single file for...
6798574 Prism diffuser for diffracting and spreading light  
The present invention relates to a prism diffuser for diffracting and spreading light, and in particular to a prism diffuser for diffracting and spreading light which is capable of spreading light...
6782160 Optical-signal coupler and related method  
An optical coupler includes a housing, and includes first and second optical terminals and a prism disposed in the housing. One terminal is moveable with respect to the other, and the prism...
6781773 Boresight stability of an optical system  
An optical system with improved boresight stability having optical elements and a beam expander oriented on a chassis, wherein the beam expander is mounted for minimal movement. By minimizing...
6781740 Achromatic phase shift device and interferometer using achromatic phase shift device  
The present invention relates to an achromatic phase shift device ( 1 ) for introducing a wavelength independent optical phase shift in a first optical beam ( 40 ) during operation, comprising at...
6760168 TIR prism system for DMD and projector adopting the same  
A TIR prism system for DMD and a projector adopting the same make a loss of incidence light be reduced, and having a small size and light weight. In a TIR prism system having the DMD and for total...
6758570 Reflective optical element, reflective optical system, image display system, and finder optical system  
The invention provides a reflective optical element which has three or more reflecting surfaces by which a light flux from an object is successively reflected. In an area enclosed by each of the...
6747738 Optical system with variable dispersion  
An optical system ( 20 ) provides a variable dispersion that helps to collect multi-spectral information on an object within the field of view. The system ( 20 ) includes at least two sets ( 24, 26...
6704143 Method and apparatus for adjusting an optical element to achieve a precise length  
In a device and method, the optical path length through an optical element is adjustable with high precision. The optical element has a first segment formed from a first optical material, the first...
6700716 Optical element with a microprism structure for deflecting light beams  
An optical element ( 10, 10′, 10 ″) for deflecting light beams ( 18, 19 ), which enter and re-emerge from the latter, in such a way that their angle of emergence (γ) is limited, in particular...
6700707 Optical sheet lamination  
In an optical sheet 10 having a prism surface 16 formed by providing unit prisms 14 on the upper surface of a transparent base material 12, a coating layer 18 is provided on the reverse...
6690496 Multi-beam scanning device  
The multi-beam scanning device includes first and second light emitting elements that emit first and second light beams, respectively, a polygon mirror that deflects the first and second light...
6678095 Anamorphic optical system  
A pair of prisms arranged in a complementary relationship provides for anamorphic magnification and cooperates with a curved refractive element, the later of which generates an aberration that at...
6644813 Four prism color management system for projection systems  
A 4-prism color management device ( 600 ) comprised of first, second, third, and fourth prisms ( 610, 612, 614, 616 ). The first prism ( 610 ) is adjacent to the second prism ( 612 ) with an air...
6636369 Device for maintaining alignment between a focal point of a laser beam and a slit aperture  
An optical wedge compensates for a vertically drifting laser beam in response to ambient temperature fluctuations. A slit sensor is formed onto a surface of the wedge to separate a single light...
6636356 Observation optical system  
An observation system having a positive refracting power as a whole comprises a first unit G 1 with a positive refracting power and a second unit G 2 and forms an exit pupil for observation of an...
6633431 Optical system and optical apparatus having the same  
An optical system comprises, in succession from the object side, a first optical element of negative optical power, a second optical element of positive optical power, and a third optical element...
6624956 Numerical aperture limiter  
The invention provides a numerical aperture limiter for an optical thermal imaging system, comprising at least one pair of wedge-like prisms made of a transparent material having a known index of...
6587286 Circular prism light capacitor  
The present invention comprises of a circular prism having beveled periphery and center faces cooperating with multiple other prisms to form a light capacitor. The present invention allows a user...
6560385 Fiber optic prism coupler, coupling arrangement and fabrication method  
An optical coupler comprises a fiber optic prism (FOP) comprising first, second, and third side surfaces, the FOP being adapted to receive light through the first side surface, reflect the received...
6560034 Beam shaping optical system  
A beam shaping optical system which is provided with a first wedge prism having two refractive surfaces defining a first principal section, and a second wedge prism having two refractive surfaces...
6560023 Optical lamination sheet  
In an optical sheet 10 having a prism surface 16 formed by providing unit prisms 14 on the upper surface of a transparent base material 12 , a coating layer 18 is provided on the reverse...
6552851 Achromatic beam shaping prism  
An achromatic beam shaping prism is disclosed which compensates for a fluctuation in oscillating wavelength of a semiconductor laser source of a recording type optical disc system using a single...
6545827 Optical sheet  
An optical sheet to be used for a back light unit of a liquid crystal display having at least a lamp and a light guiding plate has the following structure. The optical sheet is constituted by a...
6522487 Optical apparatus  
A first surface of an optical component has a lens function of converging the transmission light from a light source. A second surface reflects the transmission light, converged by the lens...
6504660 Prism and manufacturing method thereof, optical beam shaping apparatus and optical head device utilizing such prism, and optical beam shaping method  
A prism includes: a first portion made of a first material having a wavelength dependency in a refractive index; and a second portion adhered to the first portion, the second portion being made of...
6501598 Prism and optical device using the same  
A prism includes a prism base member having first and second faces intersecting with each other and including calcium fluoride, an antireflection film for oblique incidence formed on the first face...
6497490 Laser beam attenuator and method of attenuating a laser beam  
A laser beam attenuator and a method of attenuating a laser beam are disclosed. The laser beam attenuator includes first and second prisms, a beam dump, and a light absorbing body. An input laser...
6485149 Total internal reflection wavelength filter  
The invention features an apparatus and method for separating an optical beam including multiple wavelength components into targeted subsets of wavelengths by causing different subsets of...
6481882 Light pipe fixture with internal extractor  
An illumination device for transmitting and/or distributing light with an extractor that extends distally into the interior of the light guide. The illumination device includes a hollow light guide...
6480347 Device for reproducible positioning of optical surfaces  
A plurality of magnets is provided in an illumination prism carrier of a transmitted light refractometer and a corresponding plurality of magnets is provided in a sample prism housing of the...
6477289 Optical wedge switch  
An optical switch using a refractive optical element ( 52 ) to direct a light beam in selected directions upon operation of the switch. In a preferred embodiment, the refractive optical element is...
6476987 Excimer laser with line narrowing  
A line narrowing unit for use within an excimer or molecular fluorine laser resonator includes a dispersive prism having antireflection coatings on entrance and exit surfaces. Entrance and exit...
6473250 Beam deflector  
A beam deflector has first and second wedge prisms having refractive indices and geometries which are similar (in the case of the geometry to within arc minutes). The prisms are rotatable about an...
6473249 Prism optical system and image pickup apparatus using the same  
The present invention relates to a compact and high-performance prism optical system having, in order in which light rays pass from the object side, a first transmitting surface ( 4 ), a first...
6469846 Grism  
In order to provide a grism wherein even if the vertex angle of a prism increases, it does not exceed its critical angle, besides, which can elevate its efficiency, and mass-production of which is...
6466383 Image pickup optical system  
A compact image pickup optical system satisfactorily corrected for chromatic aberration as well as decentration aberrations and capable of providing a clear image with minimal distortion even at a...
6462880 Bar code reader  
A bar code reader having two reading windows, i.e., a bottom window and a side window. An increased number of scanning lines are used for constituting scanning patterns for scanning bar codes, and...
6452734 Composite electrophoretically-switchable retro-reflective image display  
A light deflector/recombiner is longitudinally symmetrical with respect to an X axis perpendicular to a Z axis. An X and Z vector components inverter longitudinally symmetrical with respect to both...
6452731 Viewing aid for doors and windows  
Viewing aids useful for doors and windows, especially in aeroplanes, comprising as an essential element a pane made of a transparent material, which pane has at least one optically active surface...
6429983 Transflector, and a transflective display device  
This invention relates to a scattering transflector wherein the reflectivity of a surface of the transflector is dependent on the angle at which light is incident on the surface of the...
6429982 Counter-rotating anamorphic prism assembly with variable spacing  
A counter-rotating anamorphic prism pair assembly with variable spacing allows the simultaneous adjustment of a prism pair using an adjustment member to circularize in cross section a range of...
6414803 Micro magneto-controlled optical path-guiding platform  
A method of making a micro magneto-controlled optical path-guiding platform comprises an optical path-guiding platform, couples of the optical routes, a micro magneto-flux prism located at the...
6407872 Optical path length scanner using moving prisms  
One embodiment of the present invention is an optical path length scanner which includes: (a) a set of prisms mounted evenly along a movable carrier; and (b) a mechanism that drives the movable...
6407868 Cross dichroic prism, method of making the same, and full-color projector using the same  
A cross dichroic prism comprises four triangular prisms having isosceles right triangular cross sections identical in shape, opposing side faces thereof being bonded and secured together with...
6404552 Projection type display device  
A projection type display device constructed so that light source beams via a polarization beam splitter are separated of colors by a color separating/synthesizing optical system and enter light...
6384983 Image display apparatus  
An image display apparatus has a display device for displaying image information and an optical system for guiding light from the display device to the eye. The optical system has a prism body of a...
Matches 51 - 100 out of 385 < 1 2 3 4 5 6 7 8 >