CN102589845B - Polaroid detection method - Google Patents

Polaroid detection method Download PDF

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Publication number
CN102589845B
CN102589845B CN201210044147.1A CN201210044147A CN102589845B CN 102589845 B CN102589845 B CN 102589845B CN 201210044147 A CN201210044147 A CN 201210044147A CN 102589845 B CN102589845 B CN 102589845B
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CN
China
Prior art keywords
polaroid
side
detection method
sheet material
side surface
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CN201210044147.1A
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Chinese (zh)
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CN102589845A (en
Inventor
杨勇
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明基材料有限公司
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Priority to CN201210044147.1A priority Critical patent/CN102589845B/en
Publication of CN102589845A publication Critical patent/CN102589845A/en
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Publication of CN102589845B publication Critical patent/CN102589845B/en

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Abstract

The invention discloses a polaroid detection method which comprises the following steps: firstly, providing a light source; then, providing a plurality of polaroids with upper surfaces; stacking the polaroids orderly to form a stacked sheet which is provide with a first side surface and a second side surface, wherein the first side surface and the second side surface are opposite; irradiating the first side surface by the light source, wherein the irradiation light rays are not parallel to the upper surface and form a first irradiation angle with the first side surface; observing the second side surface; according to whether the second side surface has light lines, judging whether a polaroid which is arranged upside down exists in the stacked sheet or not; if the second side surface has light lines, proving that a polaroid which is arranged upside down exists in the stacked sheet; and if the second side surface does not have light lines, proving that no polaroid which is arranged upside down exists in the stacked sheet. With the detection method disclosed by the invention, multiple polaroids can be detected for one time, so that the detection efficiency is high, and the device and the steps are simple and the method is convenient to operate.

Description

The detection method of polaroid

Technical field

The present invention, about a kind of detection method of polaroid, especially detects in the stacking sheet material being made up of multiple polaroids whether have the inverted method of polaroid pros and cons about a kind of.

Background technology

Please refer to Fig. 1, after the creating of polaroid, need to carry out the step taking up of polaroid to polaroid is collected and deposited, the mode of generally taking is according to the stacking placement of arrow marking note 100 alignment on it by multiple polaroids 10, but some undersized polaroids, because it vows that marking note is less, operating personnel in stacking put procedure, is inverted because carelessness easily causes have individual polaroid or a few polaroid pros and cons in stacking sheet material after taking up.On the one hand, may cause client polaroid in use procedure, to be inverted the afunction of the polaroid that causes product because of pros and cons.On the other hand, client increases polaroid and vows seal mark detecting apparatus, causes the ease of use of client to reduce.

Summary of the invention

In view of the above problems, the invention provides a kind of detection method of polaroid, for detection of whether there being polaroid pros and cons in the stacking sheet material being formed by multiple polaroids be inverted, disposable test multi-disc polaroid, detection efficiency is high, device and step is simple, easy to operate and cost is low, no matter be that manufacturer or client all can be used the method to detect.

The detection method that the object of the present invention is to provide a kind of polaroid, comprises following steps: first, provide light source.Then, provide multiple polaroids, this polaroid has upper surface.Then,, by the plurality of polaroid stacking formation stacking sheet material that aligns, this stacking sheet material has the first relative side and the second side.Irradiate this first side with this light source again, and make irradiation light be not parallel to this upper surface and be the first irradiating angle with this first side.Whether observe this second side, whether have bright line to judge in this stacking sheet material according to this second side has polaroid pros and cons to be inverted: if there is bright line this second side, in this stacking sheet material, have polaroid pros and cons to be inverted; If this second side does not have bright line, in this stacking sheet material, do not have polaroid pros and cons to be inverted.

Preferably, polaroid pros and cons corresponding to this bright line position is inverted.

Preferably, this irradiation light is positioned at and all vertical planes of this upper surface, the first side.

Preferably, this first irradiating angle is 30 °~60 °.

Preferably, first this irradiating angle is 45 °.

Preferably, the light transmission shaft of this polaroid is 45 °.

Preferably, this light source is visible light source.

Preferably, the distance of this light source and the first side is 10cm~100cm.

Sight line and the second side angular range of preferably, observing this second side are 30 °~90 °.

Detection method of the present invention can disposable test multi-disc polaroid, and detection efficiency is high, device and step is simple, easy to operate and cost is low.

Brief description of the drawings

Fig. 1 is the schematic diagram that existing polaroid takes up.

Fig. 2 is a kind of structural representation of existing single polaroid.

Fig. 3 A is the schematic diagram that one embodiment of the invention is tested with the inverted polaroid of pros and cons.

Fig. 3 B is the schematic diagram that one embodiment of the invention is not tested with the inverted polaroid of pros and cons.

Fig. 4 is the flow chart of steps of the detection method of polaroid of the present invention.

Embodiment

For making that object of the present invention, structure, feature and function thereof are had to further understanding, hereby coordinate embodiment to be described in detail as follows.

Please refer to Fig. 2, its structural representation that is a kind of existing single polaroid.Polaroid there is polarizing layer 201, glue-line 202 and release film 203.Wherein, polarizing layer 201 makes to produce polarizability by the light of polaroid.Polaroid has upper surface 200, and the 3rd relative side 230 and the 4th side 240.

Please refer to Fig. 3 A, Fig. 3 B and Fig. 4, Fig. 3 A is the schematic diagram that one embodiment of the invention is tested with the inverted polaroid of pros and cons, Fig. 3 B is the schematic diagram that one embodiment of the invention is not tested with the inverted polaroid of pros and cons, the flow chart of steps of the detection method that Fig. 4 is polaroid of the present invention.The detection method of polaroid of the present invention comprises the following steps.First, provide light source 60.Then, provide multiple polaroids, polaroid has upper surface 200.It should be noted that, the plurality of polaroid is the product that model is identical, and its size is identical, and light transmission shaft angle is identical.The stacking formation stacking sheet material that then multiple polaroids alignd, this stacking sheet material has the first relative side and the second side.As shown in Figure 3A, in one embodiment of the invention, by multiple stacking formation stacking sheet materials 2 of polaroid 21~25 alignment with structure as shown in Figure 2, stacking sheet material 2 has the first side 210, the second side 220, this first side 210, the second side 220 are made up of the corresponding side of the plurality of polaroid 21~25 respectively, the first side 210 is made up of the 3rd side 230 of polaroid 21~25 respectively specifically, and the second side 220 is made up of the 4th side 240 of polaroid 21~25 respectively.Then, irradiate the first side 210 with light source 60, and make irradiation light be not parallel to upper surface 200 and be the first irradiating angle α with the first side 210.And observe the second side 220 of stacking sheet material 2, whether whether have bright line to judge in stacking sheet material 2 according to the second side 220 has polaroid pros and cons to be inverted.

In detection method of the present invention, about the step of the second side 220 of observing stacking sheet material 2, can directly be estimated by human eye, simple and convenient, cost is low, certainly, can also adopt luminance detection device to judge whether the second side 220 occurs bright line 40, and the present invention is not as limit.Whether whether have bright line to judge in stacking sheet material 2 according to the second side 220 has polaroid pros and cons to be inverted, to be specifically divided into following situation: have bright line 40 if observe the second side 220, in stacking sheet material 2, have polaroid pros and cons to be inverted, as shown in Figure 3A; If the second side 220 does not have bright line 40, in this stacking sheet material 2, do not have polaroid pros and cons to be inverted, as shown in Figure 3 B.And the second side 220 has bright line 40 not only can judge in stacking sheet material 2 has polaroid pros and cons to be inverted, also can determine the polaroid pros and cons inversion that bright line 40 positions are corresponding, there are several bright lines 40, in stacking sheet material 2, just there are several polaroid pros and cons to be inverted.In Fig. 3 A, there is a bright line 40 in the second side 220, and polaroid 23 pros and cons corresponding to these bright line 40 positions are inverted.Judge in stacking sheet material and have polaroid pros and cons to be inverted, next, operating personnel only need to adjust polaroid pros and cons corresponding bright line position.

Please refer to Fig. 3 A, according to a preferred embodiment of the present invention, the light transmission shaft 21a~25a of polaroid 21~25 is 45 °.In stacking sheet material 2, there are polaroid 23 pros and cons to be inverted, the light transmission shaft 23a of polaroid 23 and polaroid 22 that it is closely affixed up and down, 24 light transmission shaft 22a, 24a is vertical, when irradiation light is irradiated to behind the first side 210 with the first irradiating angle α, part light reflects in stacking sheet material 2 inside, for example part light enters into polaroid 22 from polaroid 21, part light enters into polaroid 25 by polaroid 24, but because light transmission shaft 23a is vertical with light transmission shaft 22a, cannot enter into polaroid 23 by polaroid 22 therefore enter into the light of polaroid 22, the upper surface 200 that part light can only be parallel to polaroid 23 penetrates from the second side 220, thereby cause polaroid 23 to occur bright line 40 in the second side 220.Similarly, be inverted if two continuous polaroids are all pros and cons, these two continuous polaroids are vertical with the light transmission shaft of other polaroids in stacking sheet material 2, and bright line appears in the position of observing out these two polaroids in the second side 220.

Please refer to Fig. 3 B, if there is no the inverted polaroid of pros and cons in stacking sheet material 2, the light transmission shaft 21a~25a of polaroid 21~25 is parallel to each other.When irradiation light is irradiated to behind the first side 210 with the first irradiating angle α, light, evenly penetrates from the second side 220 in stacking sheet material 2 inside after superrefraction, therefore the second side 220 does not observe bright line.It should be noted that, in above-described embodiment, the light transmission shaft 21a~25a of polaroid 21~25 is 45 °, but the present invention is not as limit, in another embodiment of the present invention, the light transmission shaft 21a~25a of polaroid 21~25 is 60 °, if having polaroid 23 pros and cons in stacking sheet material 2 is inverted, the light transmission shaft 23a of polaroid 23 and polaroid 22 that it is closely affixed up and down, 24 light transmission shaft 22a, 24a is not parallel, being antarafacial intersects, when irradiation light is irradiated to behind the first side 210 with the first irradiating angle α, due to light transmission shaft 23a and light transmission shaft 22a not parallel, therefore light also cannot enter into polaroid 23 by polaroid 22, part light can only be parallel to polaroid 23 surfaces and penetrate in the second side 220, so polaroid 23 also there will be bright line 40 in the second side 220.

In the present embodiment, light source 60 is visible light source, and preferably, light source 60 is light emitting diode or cathode fluorescent tube.The distance of light source 60 and the first side 210,310 be preferably 10cm~100cm (centimetre).The light that light source 60 sends is considered as directional light.The parallel rays that light source 60 sends is not parallel to the upper surface 200 of polaroid, otherwise, the upper surface 200 that light can be parallel to polaroid enters into stacking sheet material 2 inside and directly penetrates from the second side 220, there is no refraction effect in stacking sheet material 2 inside, be that light can not enter another sheet polaroid being adjacent from a slice polaroid, now light transmission shaft whether parallel on light without any impact, cannot whether have bright line to judge by the second side 220 and in stacking sheet material 2, whether have the inverted polaroid of pros and cons.

According to one embodiment of the invention, light source 60 preferably radiation modality is that irradiation light is positioned at and all vertical planes of this upper surface 200, the first side 210, wherein the first irradiating angle α is 30 °~60 °, if have the inverted polaroid of pros and cons in stacking sheet material 2, be easier to observe obvious bright line.Preferably, this first irradiating angle α is 45 °.Certainly, the present invention is as limit, other radiation modality also can, be not parallel to upper surface 200 as long as meeting irradiation light.

The method of the detection of polaroid of the present invention, cost is low, step is simple, can the multiple polaroids of one-time detection, detection efficiency is high.

The present invention is described by above-mentioned related embodiment, but above-described embodiment is only for implementing example of the present invention.Must be pointed out that, the embodiment having disclosed does not limit the scope of the invention.On the contrary, the change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.

Claims (9)

1. a detection method for polaroid, for detection of whether there being polaroid pros and cons to be inverted in the stacking sheet material being made up of multiple polaroids, is characterized in that comprising following steps:
Light source is provided;
Multiple polaroids are provided, and this polaroid has upper surface;
By the plurality of polaroid stacking formation stacking sheet material that aligns, this stacking sheet material has the first relative side and the second side;
Irradiate this first side with this light source, and make irradiation light be not parallel to this upper surface and become the first irradiating angle with this first side;
Whether observe this second side, whether have bright line to judge in this stacking sheet material according to this second side has polaroid pros and cons to be inverted: if there is bright line this second side, in this stacking sheet material, have polaroid pros and cons to be inverted; If this second side does not have bright line, in this stacking sheet material, do not have polaroid pros and cons to be inverted.
2. detection method as claimed in claim 1, is characterized in that the polaroid pros and cons inversion that this bright line position is corresponding.
3. detection method as claimed in claim 1, is characterized in that this irradiation light is positioned at and all vertical planes of this upper surface, the first side.
4. detection method as claimed in claim 3, is characterized in that this first irradiating angle is 30 °~60 °.
5. detection method as claimed in claim 3, is characterized in that first this irradiating angle is 45 °.
6. detection method as claimed in claim 1, the light transmission shaft that it is characterized in that this polaroid is 45 °.
7. detection method as claimed in claim 1, is characterized in that this light source is visible light source.
8. detection method as claimed in claim 1, the distance that it is characterized in that this light source and the first side is 10cm~100cm.
9. the detection method of polaroid as claimed in claim 1, the sight line and the second side angular range that it is characterized in that observing this second side are 30 °~90 °.
CN201210044147.1A 2012-02-24 2012-02-24 Polaroid detection method CN102589845B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105866986B (en) * 2016-05-26 2019-09-20 明基材料有限公司 Detection device and detection method
CN108181095A (en) * 2017-12-29 2018-06-19 惠州市华星光电技术有限公司 The measuring method and measuring device of polaroid optical parameter
CN108195567B (en) * 2018-01-05 2019-11-08 信利半导体有限公司 A kind of quality detection device and detection method of sunglasses functional sheet

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CN1495485A (en) * 2002-08-09 2004-05-12 精工电子有限公司 Liquid crystal display
CN1760703A (en) * 2004-10-13 2006-04-19 日东电工株式会社 Laminated optical film, elliptically polarizing plate, and image viewing display
CN101566738A (en) * 2008-04-25 2009-10-28 上海广电Nec液晶显示器有限公司 Method for detecting right side and back side of polarizing plate

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Publication number Priority date Publication date Assignee Title
JP2001066598A (en) * 1999-08-26 2001-03-16 Fujitsu Ltd Reflective liquid crystal display device
CN1495485A (en) * 2002-08-09 2004-05-12 精工电子有限公司 Liquid crystal display
CN1760703A (en) * 2004-10-13 2006-04-19 日东电工株式会社 Laminated optical film, elliptically polarizing plate, and image viewing display
CN101566738A (en) * 2008-04-25 2009-10-28 上海广电Nec液晶显示器有限公司 Method for detecting right side and back side of polarizing plate

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