TRANSCEIVER DELATCHING MECHANISM
Granted: June 8, 2006
Application Number:
20060121769
The present invention relates to a delatching mechanism for an electronic module, such as an opto-electronic transceiver or a copper transceiver, for locking the electronic module in a host cage. The delatching mechanism enables a conventional small form factor (SFP) sized module to be unlatched while a cable remains engaged therein. A manually engageable lever, such as a bail handle, is rotatably connected on one end of a pivoting latch, and includes a projection for abutting against…
VERTICALLY OFFSET EMI PROJECTIONS
Granted: June 8, 2006
Application Number:
20060121794
The present invention relates to an electronic module, such as an opto-electronic transceiver or a copper transceiver, for plugging into a host receptacle. In an effort to eliminate the use of costly and inefficient sheet metal spring fingers for reducing EMI emissions, the present invention proposes to use solid conductive projections extending outwardly from the sides and top of the module housing. However, in highly populated host receptacles, adjacent cages often share a common sheet…
Apparatus and method for color and polarization switching
Granted: June 8, 2006
Application Number:
20060119936
The invention relates to an apparatus and method for transforming white incident light into two mutually synchronized sequences of three colored light pulses over a frame interval, each light pulse having one of three primary color bands derived from the incident light, wherein only one of the three color bands is shared between the two color sequences, thereby providing all three paired combinations of the three color bands over the frame interval within the two light components. The…
Controllable electro-optic device having substrate trenches between electrodes
Granted: June 1, 2006
Application Number:
20060115196
An optical modulator which has substantially low loss and has an improvement in voltage reduction is disclosed having an electro-optic lithium niobate substrate. The substrate has first, second and third ridges extending along its surface. Extending along the first and second ridges are first and second waveguides. A first RF electrode extends over the first waveguide and a second slotted electrode including a first section extends over the second waveguide. A second section of the…
Kinematic images formed by orienting alignable flakes
Granted: May 11, 2006
Application Number:
20060097515
An image is disclosed comprised of flakes in a carrier, such as an ink vehicle or a paint that can be aligned in a magnetic field. The flakes are aligned so as to produce one or more kinematic features such as a rolling bar that appears to move as the image is tilted. These images can provide security features on high-value documents, such as bank notes.
Low net stress multilayer thin film optical filter
Granted: April 27, 2006
Application Number:
20060087739
It has been discovered that optical filters can be manufactured with a low net stress by providing a tensile layer or layers that compensate for a compressive stress exhibited by a thin film filter supported by a glass or other substrate. In particular, a simple, cost-effective and readily reproducible process is used wherein a layer or layers of tensile material such as zirconia is used between the thin film filter and the substrate to offset compressive forces within the remaining…
Alignment of paste-like ink having magnetic particles therein, and the printing of optical effects
Granted: April 20, 2006
Application Number:
20060081151
A method and apparatus is provided for printing using paste like inks such as those used in intaglio printing, wherein the inks include specialty flakes such as thin film optically variable flakes, or diffractive flakes. The invention discloses an apparatus having an energy source such as a heat source for temporarily lessening the viscosity of the ink during alignment of the flakes within the ink.
Magnetic latch for a vapour deposition system
Granted: April 20, 2006
Application Number:
20060081468
The invention relates to a magnetic latch for securing substrates on a planetary rotating platform suspended above a coating source in a vacuum chamber of a vapor deposition system, e.g. a chemical vapor deposition (CVD) system or a physical vapor deposition (PVD) system. The magnetic latch includes a permanent magnetic, which is moveable between a latching position, in which the permanent magnet magnetizes the latch for attracting a substrate holder, and an unlatching position, in which…
Patterned structures with optically variable effects
Granted: April 13, 2006
Application Number:
20060077496
An optical structure is disclosed which includes a light transmissive substrate having a surface relief pattern applied thereon, such as a hologram. One or more layers can be patterned corresponding to materials playing the role of absorbers or reflectors on a Fabry-Perot type of optical structure. These materials are applied over portions of the surface relief pattern so as to form alphanumeric characters, bars codes, or pictorial or graphical designs. Additional layers may be applied…
Spectrally resolved fast monitor
Granted: April 6, 2006
Application Number:
20060072188
A method and apparatus for monitoring spectral tilt uses an arrayed waveguide grating (AWG) to separate a multiplexed optical signal having a plurality of wavelength channels into a plurality of sub-bands, where each sub-band spans a different wavelength range and includes more than one wavelength channel. A photodetector array is provided to measure the optical power in each of the sub-bands, while control electronics calculate spectral tilt of the multiplexed optical signal using the…
Magnetron sputtering device
Granted: April 6, 2006
Application Number:
20060070877
The present invention relates to a magnetron sputtering device and technique for depositing materials onto a substrate at a high production rate in which the deposited films have predictive thickness distribution and in which the apparatus can operate continuously and repeatedly for very long periods. The present invention has realized increased production by reducing cycle time. Increased coating rates are achieved by coupling a planetary drive system with a large cathode. The cathode…
Optical external modulator
Granted: March 16, 2006
Application Number:
20060056002
An optical external modulator includes an optical waveguide having a first interferometer section and a second interferometer section formed on an electro-optic substrate. An electrode structure disposed on the substrate transmits an RF drive signal that is applied to the first and second interferometer sections in series. A reflector optically coupled to the substrate redirects light away from the first interferometer section to the second interferometer section and provides an optical…
Anode for sputter coating
Granted: March 9, 2006
Application Number:
20060049041
A sputtering anode is disclosed wherein the anode is in the form of a container or vessel; and, wherein the conducting surface communicating with a cathode is the inside surface of the container or vessel. The anode can be mounted outside of a coating chamber having its opening communicating with the chamber or alternatively may be mounted within the chamber. The anode may be an inlet port for receiving inert gas for use in forming the plasma and for pressurizing the anode.
Cathode for sputter coating
Granted: March 9, 2006
Application Number:
20060049042
A magnetron sputtering cathode for use in a vacuum deposition process is disclosed wherein the cathode is coated on its sides with an electrically insulating material such as alumina to prevent arcing, and wherein the first end surface of the cathode supports a material to be sputtered. The bottom of the cathode may also be coated with an electrically insulating coating or may be resting upon an insulating platform.
Substrate holder for a vapour deposition system
Granted: March 9, 2006
Application Number:
20060049044
The invention relates to a partially disposable substrate holder used in magnetic latches for securing substrates on a planetary rotating platform suspended above a coating source in a vacuum chamber of a vapor deposition system, e.g. a chemical vapor deposition (CVD) system or a physical vapor deposition (PVD) system. The substrate holder includes a reusable base formed, at least partially, from a ferro-magnetic material, which is attracted to the magnetic latch, and a disposable cover…
Optical cage system preventing insertion of incorrect module
Granted: February 23, 2006
Application Number:
20060039123
The present invention relates to an opto-electronic system including an opto-electronic module and a cage assembly for electrically connecting and securing the electronic module to a host computer device. Corresponding mechanical features are provided on the module and the cage assembly to prevent modules from being plugged into incompatible cage assemblies.
Diode-pumped laser
Granted: February 23, 2006
Application Number:
20060039436
A diode-pumped laser with a direct edge coupling of a pump beam is provided. The laser includes a microchip laser cavity optically pumped by a laser diode emitting an astigmatic pump beam having a substantially elliptical beam cross-section at an output laser diode facet. The microchip laser cavity is disposed at a substantial distance exceeding 0.001? from the laser diode pump where the astigmatic pump beam has a greatly reduced ellipticity, providing high laser output efficiency…
Provision of frames or borders around opaque flakes for covert security applications
Granted: February 16, 2006
Application Number:
20060035080
Opaque flakes, such as pigment or bright flake used in paints and inks, have a selected shape and/or other indicia to provide a covert security feature to an object. In some embodiments the composition includes base pigment, and the opaque covert flakes match the visual characteristics of the base pigment. In another embodiment, opaque covert flakes are mixed in the carrier with base pigment at a concentration sufficient to avoid changing the appearance of the composition. In another…
Conductive anti-reflection coating
Granted: February 2, 2006
Application Number:
20060023131
A conductive anti-reflection coating has a surface quarterwave layer that is broken up into smaller portions by inserting one or more thin layers of conductive material in the dielectric material. The resulting stack of alternating layers of a dielectric material and an electrically conductive material provides a solid electrical contact to the buried conductive layer and exhibits a low surface contact resistance.
Low bias drift modulator with buffer layer
Granted: February 2, 2006
Application Number:
20060023288
The invention relates to an electro-optic modulator structure containing an additional set of bias electrodes buried within the device for applying bias to set the operating point. Thus the RF electrodes used to modulate incoming optical signals can be operated with zero DC bias, reducing electrode corrosion by galvanic and other effects that can be present in non-hermetic packages. The buried bias electrodes are also advantageous in controlling charge build-up with consequent…
