Senior Fitness - Exercise and Nutrition for Aging Men and Women
FREE Article Feed for your website.
Home Ownership Magazine
Party Planning Information
Article Marketing Resources
Bio-Medical Research Article Database
Informative Articles on Life, Love and Happiness
Tutorials on Business to Writing
Famous Quotes from Famous People
Song Lyric Information
New US Patent Information
Comprehensive List of Content by Category
Online Auctions and Shopping Related Articles
Article Search
Most Recent Articles
Title: Streptococcus pneumoniae open reading frames encoding polypeptide antigens and uses thereof
Patent Number: 7,384,775 Issued on 06/10/2008 to Zagursky,   et al.

Title: Method for the quantitative detection of nucleic acids
Patent Number: 7,384,769 Issued on 06/10/2008 to Locatelli,   et al.

Title: Cell culture performance with betaine
Patent Number: 7,384,765 Issued on 06/10/2008 to Follstad,   et al.

Title: Methods for assaying inhibitors of S-adenosylhomocysteine (SAH) hydrolase and S-adenosylmethionine (SAM)-dependent methyltransferase
Patent Number: 7,384,760 Issued on 06/10/2008 to Yuan,   et al.

Title: Methods for treating muscle diseases and disorders
Patent Number: 7,384,756 Issued on 06/10/2008 to Sklar,   et al.

Title: Enrichment and tagging of glycosylated proteins
Patent Number: 7,384,754 Issued on 06/10/2008 to Robotti

Title: DNA encoding a human imidazoline receptor and ligand binding assay employing same
Patent Number: 7,384,752 Issued on 06/10/2008 to Piletz,   et al.

Title: Interface patch clamping
Patent Number: 7,384,733 Issued on 06/10/2008 to Byrne,   et al.

Title: Method for fabricating optical devices in photonic crystal structures
Patent Number: 7,384,724 Issued on 06/10/2008 to Murakowski,   et al.

Title: Pattern forming method and apparatus for fabricating semiconductor device
Patent Number: 6,855,485 Issued on 02/15/2005 to Irie

Title: Method for hydroformylation, xanthene-bridged ligands and catalyst comprising a complex of said ligands
Patent Number: 6,881,867 Issued on 04/19/2005 to Ahlers,   et al.

Title: Brown-out detector
Patent Number: 6,894,544 Issued on 05/17/2005 to Gubbins

Title: Optical element driving device having two permanent magnets and one magnetic substance
Patent Number: 6,839,899 Issued on 01/04/2005 to Takeshita,   et al.

Title: Electrohydraulic converter
Patent Number: 6,791,290 Issued on 09/14/2004 to Toth,   et al.

Title: Antagonistic analogs of GH-RH inhibiting IGF-I and -II
Patent Number: 7,026,281 Issued on 04/11/2006 to Schally,   et al.

Title: Apparatus for actuating a flap for the venting of inflation gases
Patent Number: 6,830,265 Issued on 12/14/2004 to Ford

Title: Method for marking packets of a data transmission flow and marker device performing this method
Patent Number: 7,027,395 Issued on 04/11/2006 to Elloumi,   et al.

Title: Method for marking packets of a data transmission flow and marker device performing this method
Patent Number: 7,027,395 Issued on 04/11/2006 to Elloumi,   et al.

Title: Compliant coupling member for projection device lamp assembly
Patent Number: 7,077,548 Issued on 07/18/2006 to Basey

Title: MRAM storage device
Patent Number: 7,009,872 Issued on 03/07/2006 to Alva

Title: 3-Way call detection system and method
Patent Number: 6,895,086 Issued on 05/17/2005 to Martin

Title: Hybrid speed coding and system
Patent Number: 7,039,581 Issued on 05/02/2006 to Stachurski,   et al.

Title: Vehicle information system
Patent Number: 6,784,832 Issued on 08/31/2004 to Knockeart,   et al.

Title: Semiconductor optical modulator and laser with optical modulator
Patent Number: 7,039,078 Issued on 05/02/2006 to Matsuoka,   et al.

Title: Mast cell surface antigen, DNA thereof, and antibody against the antigen
Patent Number: 7,045,597 Issued on 05/16/2006 to Kawai,   et al.

Title: Storage structure with cleaved layer
Patent Number: 6,967,149 Issued on 11/22/2005 to Meyer,   et al.

Title: Semiconductor circuit, especially for ignition purposes, and the use of the same
Patent Number: 7,057,240 Issued on 06/06/2006 to Topp,   et al.

Title: Do it yourself (DIY) modular cabinet
Patent Number: 6,848,758 Issued on 02/01/2005 to Yeh,   et al.

Title: MEMS structure and method for fabricating the same
Patent Number: 7,074,635 Issued on 07/11/2006 to Kim,   et al.

Title: Semiconductor memory storage device capable of high operating speed
Patent Number: 7,054,211 Issued on 05/30/2006 to Tsujimura,   et al.

Title: Rehabilitation stroller
Patent Number: 7,044,498 Issued on 05/16/2006 to Chen

Title: Modular multiple disk drive apparatus
Patent Number: 7,042,720 Issued on 05/09/2006 to Konshak,   et al.

Title: Web-based account management for hold and release of funds
Patent Number: 7,165,047 Issued on 01/16/2007 to Understein

Title: Partial discharge monitoring apparatus and partial discharge remote monitoring system for rotating electric machines
Patent Number: 7,165,014 Issued on 01/16/2007 to Kaneda,   et al.

Title: Storage assembly with adaptable double hanging closet
Patent Number: 6,896,341 Issued on 05/24/2005 to Cattoire

Title: Projector device
Patent Number: 6,913,361 Issued on 07/05/2005 to Gishi,   et al.

Title: Method for reservoir navigation using formation pressure testing measurement while drilling
Patent Number: 7,063,174 Issued on 06/20/2006 to Chemali,   et al.

Title: Method of increasing conversion of a fatty acid to its corresponding dicarboxylic acid
Patent Number: 6,790,640 Issued on 09/14/2004 to Craft,   et al.

Title: Edge detection and sharpening process for an image
Patent Number: 7,068,852 Issued on 06/27/2006 to Braica

Title: Systems and methods for enhanced error concealment in a video decoder
Patent Number: 6,990,151 Issued on 01/24/2006 to Kim,   et al.

Title: Vibration damper
Patent Number: 6,893,009 Issued on 05/17/2005 to Brehm,   et al.

Title: Circuit configuration and method for measuring and limiting currents
Patent Number: 6,975,495 Issued on 12/13/2005 to Weinmann

Title: Method of making a composite electric machine component of a desired magnetic pattern
Patent Number: 6,889,419 Issued on 05/10/2005 to Reiter, Jr.,   et al.

Title: Systems for voice and data communications having TDM and packet buses and telephony station cards including voltage generators
Patent Number: 7,072,330 Issued on 07/04/2006 to Pounds,   et al.

Title: Press-forming apparatus
Patent Number: 6,840,080 Issued on 01/11/2005 to Matsuzaki

Title: Programmable insulin pump
Patent Number: 6,852,104 Issued on 02/08/2005 to Blomquist

Title: Packaging systems for human recombinant adenovirus to be used in gene therapy
Patent Number: 7,052,881 Issued on 05/30/2006 to Fallaux,   et al.

Title: Humidifier with a water wheel device
Patent Number: 6,832,753 Issued on 12/21/2004 to Huang

Title: Dynamically adaptable semiconductor parametric testing
Patent Number: 7,165,004 Issued on 01/16/2007 to Dorough,   et al.

Title: Dual-port SRAM in a programmable logic device
Patent Number: 6,992,947 Issued on 01/31/2006 to Pan,   et al.

Title: Scan chain disable function for power saving
Patent Number: 7,165,006 Issued on 01/16/2007 to Dhong,   et al.

Title: Method and apparatus for calibrating data-dependent noise prediction
Patent Number: 7,165,000 Issued on 01/16/2007 to Ashley,   et al.

Title: Method and system for testing assembled mobile devices
Patent Number: 7,165,003 Issued on 01/16/2007 to Mok

Title: Embedded type optical isolator and method for manufacturing the same
Patent Number: 7,039,280 Issued on 05/02/2006 to Hata,   et al.

Title: Method and system for tracked device location and route adherence via geofencing
Patent Number: 7,164,986 Issued on 01/16/2007 to Humphries,   et al.

Title: Method and system for polynucleotide synthesis
Patent Number: 7,164,992 Issued on 01/16/2007 to Mulligan,   et al.

Title: Dual-bulge flexure ring for CMP head
Patent Number: 6,848,981 Issued on 02/01/2005 to Wen,   et al.

Title: Homogenizer for collimated light controlled high angle scatter
Patent Number: 7,106,936 Issued on 09/12/2006 to Saccomanno

Title: Method and appliance for extinguishing fire
Patent Number: 6,810,965 Issued on 11/02/2004 to Matsukawa,   et al.

Title: Document information display system and method, and document search method
Patent Number: 7,047,255 Issued on 05/16/2006 to Imaichi,   et al.

Title: Versatile RSDS-LVDS-miniLVDS-BLVDS differential signal interface circuit
Patent Number: 6,992,508 Issued on 01/31/2006 to Chow

Title: Brush holding plate for an electric motor, corresponding electric motor and assembly method
Patent Number: 7,034,431 Issued on 04/25/2006 to Kapitza,   et al.

Title: Integrated PULSHI mode with shutdown
Patent Number: 7,078,963 Issued on 07/18/2006 to Andersen,   et al.

Title: Magneto-optical storage medium and optical disk drive
Patent Number: 7,072,250 Issued on 07/04/2006 to Hosokawa

Title: Planographic printing plate precursor
Patent Number: 7,074,542 Issued on 07/11/2006 to Aoshima

Title: Plasma display panel having dummy barrier ribs
Patent Number: 7,015,645 Issued on 03/21/2006 to Kim,   et al.

Title: Reformatting a document using fuzzy matching
Patent Number: 6,892,348 Issued on 05/10/2005 to Truelove,   et al.

Title: Machine and method for grouping products in stacks having a pre-set length
Patent Number: 6,971,839 Issued on 12/06/2005 to Cerutti,   et al.

Title: Compressive end effector
Patent Number: 7,017,961 Issued on 03/28/2006 to Parnell,   et al.

Title: Robot control apparatus
Patent Number: 7,047,107 Issued on 05/16/2006 to Minoshima,   et al.

Title: Implantable prosthetic or tissue expanding device
Patent Number: 6,849,092 Issued on 02/01/2005 to Van Dyke,   et al.

Title: Linguistically aware link analysis method and system
Patent Number: 7,010,527 Issued on 03/07/2006 to Alpha

Title: Needle threader
Patent Number: 6,892,911 Issued on 05/17/2005 to Hamazaki

Title: System and method for pre-processing input data to a support vector machine
Patent Number: 7,020,642 Issued on 03/28/2006 to Ferguson,   et al.

Title: Gasket
Patent Number: 7,059,612 Issued on 06/13/2006 to Kuribayashi

Duplex focusing device Number:6,827,506 from the United States Patent and Trademark Office (PTO) owispatent

Home    Author Login    Submit Article    Article Search    Add Your Link    Edit Your Link    Contact Us    Advertising    Disclaimer

   

 
Web LinkGrinder.com

Top Breaking News
     Freed Colombian Hostages Reunite With Families by Zulima Palacio
     Zimbabwe's Mugabe Says Opposition Must Accept Him as President by VOA News
     Bush Expects Miracles at New Walter Reed Medical Facility by Ravi Khanna

Title: Duplex focusing device

Abstract: A duplex focusing device is installed a duplex light transceiver module for transmitting light signals. The duplex focusing device comprises a ball lens assembly and a body. The ball lens assembly has a first lens and a second lens both being symmetrical half ball matching to each other. A layer of wavelength-division medium is placed between the first and second lens to ensure that light transmitted from a laser diode will transmit through the ball lens assembly. Thereby, the light transmitting into the ball lens assembly will have a part being reflected by the second lens. The body serves for receiving and fixing the ball lens. The body is formed to cause that both orientations of the first lens and the second lens are adjustable with respect to the body.

Patent Number: 6,827,506 Issued on 12/07/2004 to Chen


Inventors: Chen; Wei-Wen (Taipei, TW)
Appl. No.: 348224
Filed: January 22, 2003


Current U.S. Class: 385/93 ; 385/35; 385/88
Field of Search: 385/33,35,49,88-94


References Cited [Referenced By]

U.S. Patent Documents
4307934 December 1981 Palmer
6053641 April 2000 Chun
6748143 June 2004 Kuhara et al.
Primary Examiner: Palmer; Phan T. H.

Claims



What is claimed is:

1. A duplex focusing device having a duplex light transceiver module for the transmission of light signals, the duplex focusing device comprising: a ball lens assembly having a first lens and a second lens both being symmetrical half ball matching to each other, a layer of wavelength-division medium being placed between the first and second lens to ensure that light transmitted from a laser diode will transmit through the ball lens assembly, thereby, the light transmitting into the ball lens assembly will have a part being reflected by the second lens; a body for receiving and fixing the ball lens, the body being formed by a front part and a rear part, each of the front part and the rear part having an annular rim and a correspondingly annular protrusion linked to said annular rim, the annular protrusion being formed a notched groove to accommodate ball lens assembly so that both orientations of the first lens and the second lens are adjustable with respect to the body.

2. The duplex focusing device as claimed in 1, wherein the duplex focusing device is placed in a duplex light transceiver module, and the duplex light transceiver module has an optical fiber connected element, a light receiving module and a light transmitting module which are arranged around the duplex focusing device, wherein light from the laser diode of the light transmitting module will pass through the first lens and the second lens so that light is focused to the optical fiber, and light received by the optical fiber will be reflected toward the second lens and then to the wavelength-division medium, then the light is reflected and focusing to a light detector through the light receiving module.

3. The duplex focusing device as claimed in claim 1, wherein the body is fixed to the duplex light transceiver module by pins.

4. The duplex focusing device as claimed in claim 1, wherein each of the first lens and the second lens is a hemisphere and the first lens and second lens are symmetrical.
Description



BACKGROUND OF THE INVENTION

(1) Field of the Invention

The present invention relates to optic devices, and particularly to a duplex focusing device which is installed in a duplex light transceiver module, and more specifically the present invention provides a focusing means capable of altering a ball lens assembly controlled by the light transceiver module so that light can be easily coupled to an optical fiber and an optic detector reliably.

(2) Description of the Prior Art

In current optic communication systems, laser diodes are generally used as light sources. A packaged laser diode is as a laser diode element 1a. A packaged light detector is as a light detection element 2a. Referring to FIGS. 1A and 1B, it is seen that a laser diode element 1a and a light detection components 2a are mounted inside a metal fixture 3 as a light transmitting module 1a and a light receiving module 2. Then the light transmitting module 1a, light receiving module 2 and a body 4, are packaged as a duplex light transceiver module 5. The interior of the body 4 is provided with an optical filter 6. The upper and lower surfaces of the optical filter 6 are evaporation-coated with mediums of different transmission index. Thus it causes that light radiated from laser diode element 1a is coupled to an optical fiber 9a via the optic filter 6. Then the light that is completely reflected to a light detector 2a through the optical filter 6.

The optic filter 6 is fixed to a frame 8 of a filter holder 7 and the filter holder 7 is inserted into the body 4. Next, the optic filter 6 is adjusted to an optimum orientation to assure that reflection or refraction of the incident light radiating into the optic filter has an optimum result. That is, after the filter holder 7 is inserted into the fixture 3. The holder 7 must be adjusted to an optimum orientation with respect to the optic filter 6, and this step is inconvenient for the operation.

Moreover, in the prior art, ball lenses 9 are mounted directly to both the laser diode element 1a and the light detector 2a. As a result, displacement of the laser diode element 1a will cause the focusing lens into simultaneous movement. Thereby, the focusing positions of light to the optical fiber 9a and the light detector 2a are changed greatly. Therefore the coupling operation is difficult and the optical property is not preferred.

SUMMARY OF THE INVENTION

Accordingly, the primary object of the present invention is to provide a duplex focusing device installed a duplex light transceiver module for the transmission of light signals. The duplex focusing device comprises a ball lens assembly having a first lens and a second lens both being symmetrical half ball matching to each other. A layer of wavelength-division medium being placed between the first and second lens to ensure that light transmitted from a laser diode will transmit through the ball lens assembly; thereby, the light transmitting into the ball lens assembly will have a part being reflected by the second lens.

Another object of the present invention is to provide duplex focusing device, wherein the body serves for receiving and fixing the ball lens; the body being formed by a front part and a rear part; each of the front part and the rear part having an annular rim and a correspondingly annular protrusion linked to said annular rim; the annular protrusion being formed a notched groove to accommodate ball lens assembly so that both orientations of the first lens and the second lens are adjustable with respect to the body.

A further object of the present invention is to provide a duplex focusing device, wherein the duplex focusing device is placed in a duplex light transceiver module; and the duplex light transceiver module has an optical fiber connected element, a light receiving module and a light transmitting module which are arranged around the duplex focusing device.

The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A and 1B shows the perspective view of a prior art duplex light transceiver module assembly.

FIG. 2 is a perspective view of the present invention.

FIG. 3 is an exploded perspective view of the duplex focusing device and duplex light transceiver module according to the invention.

FIG. 4 is a cross-sectional view along lines 4--4 of FIG. 2.

FIG. 5 is a cross-sectional view along lines 5--5 of FIG. 2.

FIG. 6 shows the optic circuit showing the duplex focusing assembly of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIG. 2 and FIG. 3, in the present invention, a duplex focusing device 20 is installed with a duplex light transceiver module 10 for the transmission of light signals. The duplex focusing device 20 comprises a ball lens assembly 21 and a body 30 for fixing the ball lens assembly 21.

The ball lens assembly 21 comprises a first lens 22 and a second lens 23 both being symmetrical half ball matching to each other. A layer of wavelength-division medium 24 is placed between the first and second lens 22, and 23 to ensure that light transmitted from the laser diode component will transmit through the ball lens assembly 21. Thereby, the light transmitting into the ball lens assembly 21 will have a part being reflected by the second lens 23.

The body 30 consists of a front part 31 and a rear part 32. Each of the front part 31 and the rear part 32 has an annular rim 33 and a correspondingly annular protrusion 34 linked to the annular rim 3. The annular protrusion 34 is formed a notched groove 35 to accommodate ball lens assembly 21 so that both the first lens 22 and the second lens 23 may be adjusted to an optimum orientation with respect to body 30.

The ball lens assembly 21 and the body 30 are formed as the duplex focusing device 20 according to the invention. Then the duplex focusing device 20 is placed in the duplex light transceiver module 10. Then a pin 36 is inserted into a hole 37 formed on the annular aim 33, so as to fix the duplex transceiver module 10, as illustrate in FIG. 4. Thereby, the orientation of the duplex focusing device 20 is adjusted.

FIG. 5 represents an optimum installation showing the duplex focusing device 20 of the present invention being mounted in the duplex light transceiver module 10. The duplex light transceiver module 10 has an optical fiber connected element 11, a light receiving module 12 and a light transmitting module 13, with the optical fiber connected element 11 and the light receiving module 12, the light transmitting module 13 adjoining to each other with predetermined orientation. The optical fiber connected element 11 is made of pottery or porcelain and coaxially comprises an optical fiber 14. Referring to the optic path the shown in FIG. 6, light from the laser diode of the light transmitting module 13 will pass through the first lens 22 and the second lens 14 so that light is focused in the optical fiber 14. Light received by the optical fiber 14 will pass through the second lens 23 and then to the wavelength-division medium 24. Then the light is reflected and focusing to a light detector (not shown) through the light receiving module 12.

In summary, the ball lens assembly 21 of the present invention is adjusted to an optimum orientation and then is combined to the body 30. Then it is accurately and reliably combined to duplex light transceiver module 10. The focusing position remains absolutely free and unrestrained by any shifting effects due to either the light receiving module 12 or the light transmitting module 13, such that the stream of light beam that is received or transmitted in the process will be focused completely onto the ball lens assembly 21. As a result, the coupling efficiency between the light source, associated optical fiber and light detection implements is increased.

The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.

*


Free Web Sudoku Puzzles.
Solve with your browser.
      3 7        
9       5     7  
3   5     1   6  
  4 3       6    
7 1           8 2
    2       1 3  
  3   9     2   5
  6     3       8
        1 2      
What is it?



Add Your Site · Terms Of Service · Privacy Policy


DISCLAIMER
Linkgrinder is a free service that searches the Internet and indexes all files found so that you may search quickly and easily for shared files. These files are created and made available individually by users whose identity we are not aware of and who we have no control over. In essence we function like a search engine tool; these files ARE NOT STORED OR SERVED BY OUR NETWORK. We are not responsible for any materials obtained by using our service. We do not monitor any of the contents of these files. These files may contain viruses, illegal materials, materials inappropriate for minors, offensive files and the like. BY USING OUR SERVICE, YOU ASSUME FULL RESPONSIBILITY FOR DOWNLOADING THESE MATERIALS AND WILL INDEMNIFY US FOR ANY DAMAGES THAT MAY BE INCURRED.

For More Specific Information VIEW OUR TERMS OF SERVICE.

Thank you and Enjoy!