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Infrared laser detecting and displaying dual-purpose luminescent film and preparation process thereof

A technology of infrared laser and light-emitting film, applied in the field of infrared laser detection, can solve the problem of low light-emitting brightness of light-emitting film

Inactive Publication Date: 2007-07-18
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The luminous brightness of this kind of luminous film is very low, in mcd / m 2 It can only be used for lighting indication in dark places indoors

Method used

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  • Infrared laser detecting and displaying dual-purpose luminescent film and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Transparent organic medium PVC resin 140g

[0026] Plasticizer Dibutyl phthalate 20g

[0027] Dioctyl phthalate 10g

[0028] Lubricant: Zinc Stearate 1.5g

[0029] Luminescent material NaYF 4 : Yb, Tm 50g

[0030] Weigh the raw materials according to the recipe, add other materials except the luminescent material into the high-speed mixer, disperse evenly at high speed, then add the luminescent material and stir evenly. The mixed raw material is made into a luminescent film with a thickness of 100 μm through a calendering process. The luminescent film emits blue light under the irradiation of a 980nm laser. Its luminous spectrum and luminous brightness are shown in Figures 1 and 2.

example 2

[0032] Transparent organic medium P440 100

[0033] Auxiliary DOP 60

[0034] ED1300 10

[0035] Sn102 3

[0036] Luminescent material Y 2 o 3 : Yb, Er

[0037] Put DOP, ED 1300, and Sn102 into the container, stir at 200N / min for 2min, then put in P440 resin, stir at 600~700N / min for 5min, and prepare a blank paste. Weigh the luminescent material and the blank paste according to the content of 40%, stir for 3 minutes at a speed of 600~700N / min, mix well, and let it stand naturally for 30 minutes to defoam. The white PET film is used as the substrate, and the 400um QTG film applicator is used to coat the film. The film coating speed is 35mm / s~60mm / s, the curing temperature is 165~170℃, and the time is 2 minutes. The luminescent film emits red light under the irradiation of a 980nm laser. Its luminous spectrum and luminous brightness are shown in Figures 3 and 4.

example 3

[0039] Transparent organic medium Modified acrylic resin 70

[0040] Flux slow drying agent 6

[0041] Luminescent material Y 2 o 2 S: Yb, Ho 30

[0042] Add the liquid raw materials in the formula into the container, stir evenly, add the luminescent material under the stirring condition, and prepare the ink. Clean the base material of the aluminum plate, print the ink evenly on the aluminum plate with a 200-mesh screen, and print 3 times to obtain a luminescent film of 100 μm, and then dry it. The luminescent film emits green light under the irradiation of a 980nm laser. Its luminous spectrum and luminous brightness are shown in Figures 5 and 6. The luminescent film emits green light under the irradiation of a 1060nm laser. Its light-emitting photos are shown in Figure 7.

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Abstract

The infrared detecting and displaying two-purpose light emitting film consists of up converting light emitting material in 1-80 wt%, transparent organic medium in 10-95 wt% and additive in 0-60 wt%. It may have one adhesive layer on the surface and one flexible or rigid substrate. Under irradiation of infrared ray, the light emitting film emits bright visible light, so that the present invention may be used in anti-fake, display and infrared detection.

Description

technical field [0001] The invention relates to a dual-purpose luminescent film for infrared laser detection and display and a preparation method thereof, which can be used in the fields of anti-counterfeiting, display, and infrared laser detection, such as judging whether a laser instrument has emitted laser light and analyzing the strength of laser power . Background technique [0002] Luminescent film is a functional film product made by mixing luminescent materials and organic materials such as resins. It can be made into various forms, such as with stickers, which can be cut and pasted at will. It is easy to use, convenient and has a wide range of applications. Patents (ZL93213168.9, ZL00119131.4) describe a multi-layered long-lasting luminescent film, and the luminescent material used in it is a long-lasting luminescent material with a sulfide matrix, an aluminate matrix, or a silicate matrix. Under the excitation of ultraviolet light and / or short-wave visible light (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/85G01N21/64
Inventor 曹望和罗昔贤付姚
Owner DALIAN MARITIME UNIVERSITY
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