Claims
- 1. In the method of recording a hologram of an image in a medium wherein an electrically conductive layer has first and second surfaces connected to one surface of a photoconductor layer and a surface of a substrate, respectively, the steps of:
- providing a thermoplastic layer of substantially uneven thickness that causes said thermoplastic layer to have a multiplicity of frost frequencies;
- disposing said thermoplastic layer upon the other surface of said photoconductor layer, whereby said photoconductor layer is between said conductive layer and said thermoplastic layer and said thermoplastic layer has a surface abutting said photoconductor layer and a free surface;
- maintaining a uniform voltage between said conductive layer and said free surface, thereby providing a charged assembly;
- providing an interference pattern of light representative of said image to said photoconductor layer in said charged assembly; and
- applying heat to said charged assembly.
- 2. The method of claim 1 wherein said step of providing said thermoplastic layer includes the step of providing said thermoplastic layer with a multiplicity of frost frequencies within a range of 733 cycles per millimeter to 1,250 cycles per millimeter.
- 3. In the method of recording a hologram of an image in a medium wherein one surface of an electrically conductive layer has one surface connected to a substrate, the steps of:
- providing a photoplastic layer of substantially uneven thickness that causes said photoplastic layer to have a multiplicity of frost frequencies;
- disposing said photoplastic layer upon the other surface of said conductive layer;
- maintaining a uniform voltage between said conductive layer and said free surface, thereby providing a charged assembly;
- providing an interference pattern of light representative of said image to said photoplastic layer in said charged assembly; and
- applying heat to said charged assembly.
- 4. The method of claim 3 wherein said step of providing said photoplastic layer includes the step of providing said photoplastic layer with a multiplicity of frost frequencies within a range from 733 cycles per millimeter to 1,250 cycles per millimeter.
Parent Case Info
This is a division, of application Ser. No. 653,288, filed Jan. 29, 1976.
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
Country |
637335 |
Dec 1963 |
BEX |
Divisions (1)
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Number |
Date |
Country |
Parent |
653288 |
Jan 1976 |
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