JPS6417028A - Liquid crystal phase grating - Google Patents
Liquid crystal phase gratingInfo
- Publication number
- JPS6417028A JPS6417028A JP17257987A JP17257987A JPS6417028A JP S6417028 A JPS6417028 A JP S6417028A JP 17257987 A JP17257987 A JP 17257987A JP 17257987 A JP17257987 A JP 17257987A JP S6417028 A JPS6417028 A JP S6417028A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- regions
- electrodes
- electric field
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
PURPOSE:To easily form phase gratings having a fine pitch structure by setting respective elements in such a manner as to generate an electric field in non- electrode regions except between electrodes facing each other so that a phase change is generated in the non-electrode regions at the time of impressing the electric field on a liquid crystal and forming the phase gratings by rotating liquid crystal molecules. CONSTITUTION:The electrodes 51, 52 consist of the width sufficiently smaller than the grating-like arrangement period 1 thereof. The electric field is formed in the electrode regions 61, 62 which are the regions formed of the electrode 4 facing the electrodes 51, 52 of the 2nd electrode 5 if a rectangular voltage of, for example, 1kHz is impressed between the 1st electrode 4 and the 2nd electrode 5 at 10V in its P-P value. Effusion of the electric field is generated in the non-electrode regions 71, 72 except the regions formed of the electrode 4 facing the electrodes 51, 52 simultaneously therewith. A change in refractive index is thus generated in the non-electrode regions 71, 72 as well besides in the electrode regions 61, 62. The fine phase gratings are thereby formed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17257987A JPS6417028A (en) | 1987-07-10 | 1987-07-10 | Liquid crystal phase grating |
| US07/758,396 US5122888A (en) | 1987-07-10 | 1991-09-04 | Focusing plate having phase grating formed by using liquid crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17257987A JPS6417028A (en) | 1987-07-10 | 1987-07-10 | Liquid crystal phase grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6417028A true JPS6417028A (en) | 1989-01-20 |
Family
ID=15944456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17257987A Pending JPS6417028A (en) | 1987-07-10 | 1987-07-10 | Liquid crystal phase grating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6417028A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5198912A (en) * | 1990-01-12 | 1993-03-30 | Polaroid Corporation | Volume phase hologram with liquid crystal in microvoids between fringes |
| WO1997027583A1 (en) * | 1996-01-23 | 1997-07-31 | Asahi Glass Company Ltd. | Optical head, method of manufacturing the same, and diffraction element suitable therefor |
| WO2007055102A1 (en) | 2005-11-10 | 2007-05-18 | Ulvac, Inc. | Applicator and method of moving dispersion liquid |
| JP2008225156A (en) * | 2007-03-14 | 2008-09-25 | Mitsubishi Electric Corp | Liquid crystal display |
-
1987
- 1987-07-10 JP JP17257987A patent/JPS6417028A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5198912A (en) * | 1990-01-12 | 1993-03-30 | Polaroid Corporation | Volume phase hologram with liquid crystal in microvoids between fringes |
| WO1997027583A1 (en) * | 1996-01-23 | 1997-07-31 | Asahi Glass Company Ltd. | Optical head, method of manufacturing the same, and diffraction element suitable therefor |
| WO2007055102A1 (en) | 2005-11-10 | 2007-05-18 | Ulvac, Inc. | Applicator and method of moving dispersion liquid |
| JP2008225156A (en) * | 2007-03-14 | 2008-09-25 | Mitsubishi Electric Corp | Liquid crystal display |
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