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 Title: |
US6639706:
Optical path switch and method of using thereof
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Ziv, Ofer R.; Newton, MA
Fiore, Jack; Grayslake, IL
Uy, Philip; Antrim, NH
Filipovich, Danny; Lincoln, IL
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| Assignee: |
Kollsman, Inc., Merrimack, NH
other patents from KOLLSMAN, INC. (826546) (approx. 1)
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| Published / Filed: |
2003-10-28
/ 2002-01-23
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| Application Number: |
US2002000055815
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| IPC Code: |
Advanced:
G02B 27/01;
G02B 27/00;
IPC-7:
G02B 26/00;
G02B 27/14;
G02F 1/01;
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| ECLA Code: |
G02B27/01; S02B27/01A10;
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| U.S. Class: |
359/238;
359/630;
359/631;
359/638;
345/007;
345/008;
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| Field of Search: |
359/238,630,633,631,638
345/7;8
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| Priority Number: |
| 2002-01-23 |
US2002000055815 |
| 2001-01-24 |
US2001000263777P |
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| Abstract: |
An optical path switch and a method of using thereof, for creating two optical pathways for input light. The switch is composed of two polarizers that polarize the input light and two polarization rotators each having two positions. The polarization rotators position translates to one of two the optical pathways. Additionally, the optical path switch has an image enhancement device for producing an enhanced image of the light, and a beam splitter that directs the light to two channels. The optical path switch works by polarizing the light by one of the two polarizers producing an output, following, the output is then directed through the beam splitter where the output is directed towards the two channels. Next, the output is then filtered through the two polarization rotators and to the other of the two channels where the positions of the two polarization rotators switch the optical pathways.
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| Attorney, Agent or Firm: |
Ritchie, William B. ;
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| Primary / Asst. Examiners: |
Dang, Hung Xuan; Martinez, Joseph
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| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
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| Parent Case: |
This application claims benefit under Title 35, United States Code §119, §120 of U.S. Provisional Application No. 60/263,777, dated Jan. 24, 2001.
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| Family: |
Show 2 known family members
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First Claim:
Show all 6 claims |
What is claimed is:
1. An optical path switch for creating two optical pathways for input light from a single common optical pathway, said switch comprising:
- two polarizers that polarize said input light;
- two polarization rotators each having two positions, said polarization rotators position translate to one of two said optical pathways;
- an image enhancement device for producing an enhanced image of said light; and
- a beam splitter that directs said light to two channels, whereby said light is polarized by one of said two polarizers producing an output, said output is then directed through said beam splitter where said output is directed towards one of said two channels, the output is then filtered through said two polarization rotators and to the other of said two channels, said positions of said two polarization rotators switch said optical pathways.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 17 U.S. patent(s) that reference this one
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