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Hologram reproduction method and device

一种设备、全息光学元件的技术，应用在全息图复制和全息图复制设备领域，能够解决不适用大规模生产等问题

Active Publication Date: 2019-07-05
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a method is not suitable for mass production, since it replicates one by one

Method used

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  • Hologram reproduction method and device
  • Hologram reproduction method and device
  • Hologram reproduction method and device

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0073] As shown in FIG. 2, a master roll (21) having a master plate (23) formed on its surface as a diffractive optical element having predetermined optical characteristics and a black-series photosensitive material (24) in a state of being adhered to the surface were used. ) of the main roll (22) to manufacture transmission-type holographic elements.

[0074] Specifically, after the photosensitive material (24) is adhered to the surface of the main roll (22) by a laminating roll (not shown) heated to about 50° C., the photosensitive material is transported so that it can face the surface of the main roll (22) formed on the main roll. Master (23) on (21). At this time, the photosensitive material (24) is conveyed by the main roller (22) at a speed of about 1.5 m / min. On the other hand, a master (23) was formed on the surface of a master roll (21) having a diameter of 10 cm. In the state where the master and the photosensitive material face each other while being in contact w...

experiment example 2

[0076] The method of the present application was carried out in the same manner as in the examples, except that the line width of the laser line beam used was 3 mm.

[0077] Evaluation of the replicated holographic optical elements

[0078] The diffraction efficiencies of the transmission holograms produced in each example are shown in Figure 4 middle. exist Figure 4 , the horizontal axis represents the incident angle (degrees, °) of the incident light incident on the photosensitive material on which the hologram is recorded, and the vertical axis represents the diffraction efficiency (%) of the diffracted light relative to the incident light. Diffraction efficiency is calculated by the following equation.

[0079] [Equation] Diffraction Efficiency = Diffraction Light Intensity / (Diffraction Light Intensity+Transmitted Light Intensity)

[0080] Such as Figure 4 As shown, in the case of Experimental Example 1 using a line beam with a line width of 1 mm, the diffraction...

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Abstract

The present application provides a reproduction method for a transmissive holographic optical element capable of reproducing the transmissive holographic optical element in quantity in a continuous and economical process, and specifically, a production method for a transmissive holographic optical element, performed by rotating a laser-transmissive master roll having a master, which is a diffraction optical element, formed on the surface thereof, and transferring a sensitive material attached to the surface of a main roll, the method comprising the steps of: irradiating a layer line beam toward the master roll; and irradiating, to the sensitive material, the laser line beam which has passed through the inside of the master roll and penetrated the master on the surface of the master roll.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2016-0162150 filed on November 30, 2016, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present application relates to a method for replicating a holographic optical element and a device for the replicating method. Background technique [0004] A holographic optical element refers to an optical element in which an object wave, which is light reflected or diffracted from an object, interferes with a reference wave, which is another wave having coherence with the light, to record an interference pattern on a photosensitive material. Since a photosensitive material on which an interference pattern is recorded reproduces image information by using diffraction instead of reflection or refraction, such a photosensitive material is also classified as a kind of diffraction optic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03H1/20G03H1/02G03H1/18
CPCG03H2001/043G03H1/02G03H1/0248G03H1/18G03H1/20G03H1/202G03H2001/0413G03H2001/2234G03H2222/36G03H2223/24G03H1/0236G03H2001/187G03H2227/04G03H1/0402G03H1/041G03H1/0465G03H2223/23
Inventor 金在镇徐大韩宋民守韩尚澈
Owner LG CHEM LTD
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