TWI670541B - Polarization alignment detecting device and detecting method - Google Patents

Abstract

The present invention relates to a polarized light alignment detecting device and a detecting method. The detecting device transmits a light-emitting surface facing an outer projection surface light source to a side of a polarizing element through a light source of a linear polarized light source, and the polarizing element loads the spatial signal into the light source to The light source is projected from the other side of the light-emitting surface to the object to be detected, and the light source passes through the object to be detected and is projected to the polarizer on the other side, and the polarizer receives the linear polarized light source that penetrates the object to be detected and filters out the light source. The aurora signal, and the light source is re-projected to the camera lens of the other side detection system, the line polarized light source can be detected through the detection system, and the object to be detected and the polarizer are polarized and detected and attached.

Description

Polarization alignment detecting device and detecting method

The invention provides a polarized light alignment detecting device and a detecting method, in particular to a detecting device and a method for detecting a polarized light of a object to be detected, which is detected by a linear polarized light source and a surface light source penetrating the polarizing element, the object to be detected, and the polarizer. The system receives the detection and achieves the purpose of attaching the object to be detected to the polarizer.

According to the continuous advancement and innovation of the technological age, many things in daily life have also undergone significant changes with the advancement of science and technology, such as television or movies watched in people's daily lives, through the display of images on the screen. It was also transformed from an early 2D planar image (2D planar image, 2 Dimension) into a 3D stereoscopic image (3D stereoscopic image, 3D stereoscopic image, 3 Dimension image, 3 Dimension image, 3D stereo image, 3D image, 3D image, 3D image, 3D image, 3D image, 3D image, 3D image, 3D image The stereoscopic visual effect of the image (3D stereoscopic image) is realized by many operators using 3D stereoscopic images to evolve various real-world presences and immersive simulated image realms, such as virtual reality (VR). Technology, Augmented Reality (AR) technology, Mixed Reality (MR) technology or Cinematic Reality (CR) technology, etc. A variety of technologies, such as games, television or movies, provide a visual impression of viewing 3D stereoscopic images.

The presentation of 3D stereoscopic images is formed by the Binocular Parallax effect, and the binocular parallax represents the effect that the two images are slightly different because of their different positions and different viewing angles. Finally, the brain combines the different images seen by the two eyes to generate 3D stereoscopic images; as for the stereoscopic image presentation technology, it can be roughly divided into Stereoscopic or non-glasses that need to be worn with special design glasses. Auto Stereoscopic for naked-eye viewing; among them, 3D stereoscopic image display technology for wearing glasses, including color difference type (ie, Color Filter Glasses), polarized type (ie, Polarizing Glasses) And active shutter type (ie, Shutter Glasses) and other types; as for polarized 3D stereoscopic imaging technology (Polarization 3D), also known as polarized 3D stereoscopic image technology, please refer to the sixth, seventh, and eighth figures. With the application of passive polarized glasses, the principle of light [vibration direction] (a) is used to decompose the original image (b) First, the image (b) is divided into two groups of vertically polarized light (b1) and horizontally polarized light (b2), and then the left and right lenses (c1, c2) are respectively polarized by 3D glasses (c). The polarizing lens of the direction is for the left and right eyes of the user to receive two sets of pictures through the left and right lenses (c1, c2), and then synthesized through the brain to form a stereoscopic image (d).

Although the stereoscopic image is displayed by the naked eye, the user can view the 3D stereoscopic image without wearing the specially designed glasses, and the naked eye stereoscopic display technology, for example, Lenticular len type stereoscopic imaging technology uses a lens to bend the light of each display information to the left and right eyes of the viewer, and the displayed stereoscopic image has a position and an angle, etc., so that the viewer The viewing position and angle are also subject to more restrictions, and the glasses-type 3D stereoscopic image display technology with special design glasses is better because of the 3D stereoscopic image presented by the glasses, and is not easily restricted by the viewing position or angle. It is still used by most operators; however, because polarized glasses must be tested and aligned, the appropriate polarization angle and polarization direction of the left and right lenses can be adjusted to achieve good 3D stereoscopic image display, otherwise it is easy When the polarized glasses are used, the tilting phenomenon occurs due to the transmission axis of the polarized glasses (the axis that penetrates the linearly polarized light), so that cross talk occurs, and the brightness of the polarized glasses changes, darkens, etc. Missing.

Moreover, the method of applying the polarized light in front is as shown in the ninth figure. The way of performing the polarized alignment is mainly through the monochromatic light source e penetrating the polarizing plate f, the quarter wave plate g, and the sample h is polarized. The detector i receives the polarization detection of the sample h for the polarization detector i, and can simultaneously measure the phase difference and the optical axis at a high speed, but the measurement accuracy of the polarizing plate f and the sample h can reach 0.01°. However, before measuring, the polarizing plate f must be cut and placed on the base measuring fixture. After the rotation angle and calculation are controlled by the computer, the parameters such as the penetration rate can be known. The penetration rate and parameters are used for the measurement and calculation of the polarizing detector i. The measurement operation is cumbersome and complicated, and the single-point measurement can be performed on the polarizing plate f and the sample h, and the polarizing plate cannot be immediately applied to the equipment. The cooperation between f and sample h is still in need of improvement in practical application and implementation.

Therefore, how to solve the problem of obtaining the parameters of the current pre-operation of the polarizing plate detection The cumbersome problems and problems in the industry, and the inability to directly attach the polarizing plate to the sample during the measurement operation, etc., is the direction for the relevant manufacturers engaged in this industry to research and improve.

Therefore, in view of the above-mentioned problems and deficiencies, the inventors collected relevant information, evaluated and considered them through multiple parties, and based on years of experience accumulated in the industry, through continuous trial and modification, the design of such a line using a polarized light source was designed. The patent source of the polarized light alignment detecting device and the detecting method capable of penetrating the light source, the object to be detected, and the polarizer after the surface light source sequentially receives the light source and detecting the image, and the object to be detected and the polarizing surface are bonded together The birther.

The main purpose of the present invention is that the detecting device transmits the light-emitting surface facing the outer projection surface light source to the side of the polarizing element through the light source of the linear polarized light source, and the polarizing element loads the spatial signal into the light source for the light source to be illuminated by the other side. Projecting outward to the object to be detected, and the light source passes through the object to be detected and then projected to the polarizer on the other side, and the polarizer will receive the linear polarized light source penetrating the object to be detected and filter out the polarized light signal, and project it to another The side detection system is an imaging lens, that is, the line polarization light source is detected through the detection system, and the object to be detected and the polarizer are detected by polarization, and are attached.

The secondary object of the present invention is that the line polarized light source is a surface light source having a polarization characteristic, and a polarizing film is disposed on the light emitting surface of the light source, so that the surface light source can be polarized, and the light emitting surface and the polarizing film can be transmitted to the outside. Projecting a single-wavelength light source; while the polarizing element is a liquid crystal polymer (LCP) depolarizer and converting the linearly polarized light into a pseudo-randomly polarized patterned retarder, the polarizing element is a spatial signal of the polarization state distribution signal Loaded into the light source projected from the linear polarized light source, and the polarization distribution signal is a spatial type or a change in optical wavelength; a polarizer ( Polarizer) is a Nanoparticles in Sodium-Silicate Glass.

Another object of the present invention is that the detection system is a CCD (Charge-coupled Device), and the camera lens is a telecentric lens.

1‧‧‧Line polarized light source

11‧‧‧Light source emitting surface

12‧‧‧ polarizing film

2‧‧‧Polarized components

21‧‧‧Stained surface

22‧‧‧Lighting surface

3‧‧‧Testables

31‧‧‧Polarized image

4‧‧‧ polarizer

41‧‧‧Polarized image

5‧‧‧Detection system

51‧‧‧ camera lens

A‧‧‧vibration direction

B‧‧‧ image

B1‧‧‧Vertically polarized light

B2‧‧‧Horizontal polarized light

c‧‧‧3D glasses

C1‧‧‧ left lens

C2‧‧‧right lens

D‧‧‧3D image

E‧‧‧monochromatic light source

f‧‧‧Polar plate

G‧‧‧quarter wave plate

H‧‧‧sample

I‧‧‧ Polarized light detector

The first figure is a three-dimensional appearance of the present invention.

The second figure is a perspective exploded view of the present invention.

The third figure is a flow chart of a preferred embodiment of the detection method of the present invention.

The fourth figure is a polarized image image of the polarized light detection of the present invention.

The fifth figure is a polarized image image of the polarized light detection of the present invention.

The sixth figure is a schematic diagram of the decomposition of the light vibration direction of the conventional polarization type 3D technology (1).

The seventh figure is a schematic diagram of the decomposition of the light vibration direction of the conventional polarization type 3D technology (2).

The eighth figure is a schematic diagram of the light vibration direction reception of the conventional polarization type 3D technology.

The ninth diagram is a side view of a conventional polarized alignment method.

In order to achieve the above objects and effects, the technical means, the structure, the method of the implementation, and the like, which are used in the present invention, are described in detail in the preferred embodiments of the present invention.

Please refer to the first, second, third, fourth and fifth figures, which are the three-dimensional of the present invention. Appearance diagram, stereoscopic exploded view, flow chart of preferred implementation detection method, polarized light image image during polarized light detection, and polarized light image image after polarized light detection, as can be clearly seen from the figure, the polarized light alignment of the present invention The detecting device includes a linear polarized light source 1, a polarizing element 2, a to-be-detected object 3, a polarizer 4, and a detecting system 5, wherein the linear polarizing light source 1 has a light emitting surface 11 on the side thereof, and the surface light source can be projected outward.

A light receiving surface 21 and a light emitting surface 22 are provided on both sides of the polarizing element 2.

The object to be detected 3 can be a polarizing film, which can polarize natural light that is generally not polarized, and then convert into polarized light for application to polarized light, and is generally applied to image display effects.

The polarizer 4 (Larizer) may be a nanoparticles in Sodium-Silicate Glass or the like, and may convert natural light into an optical element of polarized light.

The detection system 5 can be a CCD (Charge Coupled Device), and one side is provided with an imaging lens 51, and the imaging lens 51 can be a telecentric lens.

When the respective members are applied, the polarizing element 2 is disposed outside the light source emitting surface 11 of the linear polarized light source 1 so that the light receiving surface 21 on the side of the polarizing element 2 is opposite to the light emitting surface 11 and then on the other side of the polarizing element 2. The object to be detected 3, the polarizer 4 and the detecting system 5 are arranged in the outer side of the light emitting surface 22, and the pair of the imaging lens 51 of the detecting system 5 is located on the polarizing plate 4, and the light source emitting surface 11 of the linear polarizing light source 1 can be penetrated by the light source. Polarizing element 2, pending inspection After the object 3 and the polarizer 4 are detected, the camera lens 51 obtains the polarized image image 31 of the object to be detected 3 and the polarized image image 41 of the polarizer 4, and then analyzes the light penetration of the object to be detected 3 and the polarizer 4. The position, angle, and the like of the shaft are changed, and the phenomenon of occurrence of the penetration axis tilt and crosstalk is reduced, and the polarization alignment detecting device of the present invention is constructed.

The line polarized light source 1 is a surface light source having a polarization characteristic, and may be a light emitting diode light source (LED), an organic light emitting diode (OLED, etc.) or other types of light sources. The light-emitting surface 11 is provided with a polarizing film 12, so that the surface light source can be polarized, and the light source emitting surface 11 and the polarizing film 12 can be directly projected to the single-wavelength light source.

As for the polarizing element 2, it may be a liquid crystal polymer (LCP) depolarizer, and convert linearly polarized light into a pseudo-randomly polarized patterned retarder, and the polarizing element 2 is a space for distributing the polarization state signal. The signal is loaded into the light source projected by the linear polarized light source 1, and the polarization of the light is random. After the linearly polarized light of the monochromatic light source passes through the depolarizer, the polarization state will change with space to generate a distributed signal; The linearly polarized light of the source passes through a depolarizer, and the polarization state will vary with the spatial pattern or wavelength of the light to produce a distributed signal.

Furthermore, when the polarization alignment detecting device of the present invention performs the polarization detection of the object to be detected 3 in practical applications, the steps of the detecting method are as follows:

(A) The light source is projected outward from the light source emitting surface 11 of the line polarized light source 1 to the light receiving surface 21 of the polarizing element 2.

(B) After receiving the light source on one side of the light receiving surface 21, the polarizing element 2 loads the spatial signal into the received light source, and then the light source containing the spatial signal is projected outward to the object to be detected 3 by the other side emitting surface 22.

(C) The light source passes through the object to be detected 3 and is then projected onto the polarizer 4 for the polarizer 4 to filter out the polarized light signal in the light source, and then the light source is projected onto the detection system 5.

(D) The imaging lens 51 of the detecting system 5 receives the light source that has passed through the polarizer 4 to obtain the polarized information image 41 having the polarized image image 31 of the object to be detected 3 and the polarizer 4, and then performs detection.

(E) The object to be detected 3 and the polarizer 4 after the polarization detection can be bonded to complete the polarization alignment detection of the object 3 to be detected.

The linear polarized light source 1 of the above step (A) is a surface light source having a polarization characteristic, and may be a light emitting diode light source (LED), an organic light emitting diode (OLED, etc.) or the like. The light source of the type is provided with a polarizing film 12 on the light emitting surface 11 to enable the laser light source to produce a polarizing characteristic, that is, a light source of a single wavelength can be projected outward through the light emitting surface 11 and the polarizing film 12.

And the polarizing element 2 of the above step (B) is a liquid crystal polymer (LCP) depolarizer, and converts the linearly polarized light into a pseudo-randomly polarized patterned retarder, and the polarizing element 2 is a polarization state. The spatial signal of the distributed signal is loaded into the light source projected by the linear polarized light source 1, and the polarization of the light is random. After the linearly polarized light of the monochromatic light source passes through the depolarizer, the polarization state changes with space to generate a distributed signal. If the linearly polarized light of the broadband source passes through the depolarizer, the polarization state will change with the spatial pattern or wavelength of the light to produce a distributed signal.

Further, in the above step (C), the object to be detected 3 can be a polarizing film, which can polarize natural light which is generally not polarized, and then convert into polarized light for application to polarized light, and is generally applied. In the image The polarizer 4 (Polarizer) may be a nanoparticles in Sodium-Silicate Glass or the like, and may convert natural light into an optical element of polarized light.

Then, the detecting system 5 of the step (D) may be a CCD (Charge Coupled Device), and the imaging lens 51 provided on one side may be a light source received by a telecentric lens, and the object to be detected is obtained. The image of the polarized light is detected by the detecting system 5, and the intensity change of the polarized light source is used to perform the polarization alignment detection of the object to be detected 3 and the polarizer 4, so that the object to be detected 3 and the polarizer 4 are offset. Skewed polarized-image images 31, 41 (please refer to the fourth figure (a) and (b) at the same time), and position and angle of the light-transmitting axis of the object to be detected 3 and the polarizer 4 are changed. The object to be detected 3 and the polarized image images 31 and 41 on the polarizer 4 are aligned and overlapped (please refer to the fifth figure (a) and (b) simultaneously) and the occurrence of the penetrating axis tilt and crosstalk may be reduced. Then, the object to be tested 3 and the polarizer 4 are attached to each other, and can be applied to an optical lens, an instrument panel, an electronic product or a 3C product (for example, an electronic dictionary, an MP3, an MP4, an AR, a VR, a smart phone, a tablet). , digital camera, computer screen, LCD monitor or TV Etc.), etc. panel.

Therefore, the above description is only a preferred embodiment of the present invention, and is not limited to the patent scope of the present invention. The polarized light alignment detecting device and the detecting method of the present invention are projected by the light source emitting surface 11 of the linear polarized light source 1. The surface light source is applied to the light receiving surface 21 of the polarizing element 2, and the polarizing element 2 loads the spatial signal into the light source and then projects outward from the other side emitting surface 22 to the object to be detected 3, and then transmits the polarized light through the light source penetrating the object to be detected 3. Sheet 4, making the linear polarized light source empty The polarization state of the distribution, and then transmitting the linear polarization light source to the imaging lens 51 of the detection system 5, the polarization image image 41 having the polarization information image 31 of the object to be detected 3 and the polarizer 4 is obtained by the imaging lens 51, and the detection system is 5 Calculating the polarization direction and angle of the object to be detected 3 and the polarizer 4, and achieving optical alignment, detection, and bonding of the object to be detected 3 and the polarizer 4, and reducing the object to be detected 3 and polarized light The effect of the penetrating axis tilting and crosstalk phenomenon occurs on the sheet 4, etc., and the stability of the object to be detected 3 and the polarizer 4 is improved in application. Therefore, the structures and devices that can achieve the aforementioned effects are covered by the present invention. Both the simple modification and the equivalent structural change are included in the scope of the patent of the present invention and are combined with Chen Ming.

Therefore, the present invention is mainly directed to a polarized light alignment detecting device and a detecting method, wherein a light source emitting surface of a linear polarized light source is used to project a surface light source to a polarizing element, and the polarizing element loads a spatial signal into the light source and then projects the object to be detected. After the light source penetrates the object to be detected and is projected onto the polarizer, the light source is received by the imaging lens of the detection system to obtain a polarized image image of the polarized image image and the polarizer of the object to be detected, and the detection system can calculate the object to be detected. Polarization direction, angle, etc. of polarizers, etc., to achieve optical alignment detection of the object to be detected, polarizer, etc., and to perform immediate bonding as the main protection focus, and to reduce the occurrence of penetration axis tilt and crosstalk, only The object to be tested, the polarizer and the like have the advantage of obtaining a suitable polarization angle, and the effect is more stable in practical use. However, the above description is only a preferred embodiment of the present invention, and thus does not limit the patent scope of the present invention. Therefore, all modifications and equivalent structural changes that are made by using the specification and drawings of the present invention should be construed as being included in the present invention. Within the range of interest, together to Chen.

In summary, the above-described polarized light alignment detecting device and detecting method of the present invention can achieve its efficacy and purpose when actually implemented and implemented, so the present invention is an excellent research and development, and is in conformity with the invention patent. Application requirements, 提出 apply in accordance with the law, look forward to the trial committee early The case is given to the case to protect the inventor's hard work in research and development, and if there is any doubt in the bureau and your review committee, please do not hesitate to give instructions to the inventor, and the inventor will try his best to cooperate with him.

Claims (10)

A polarized light alignment detecting device comprises a linear polarized light source, a polarizing element, a polarizer and a detecting system, wherein: the linear polarizing light source is provided with an outward emitting surface light source to a light source emitting surface of the polarizing element, and the polarizing element is a liquid crystal polymerization. The depolarizer of the object is provided with a light receiving surface of the receiving light source on one side of the polarizing element, and a light emitting surface for loading the spatial signal into the light source and projecting outward to the object to be detected on the other side; the polarizing film is located in the opposite polarized light The other side of the component to be detected is for receiving a linear polarized light source that penetrates the object to be detected and filtering out the polarized light signal; and the detecting system is located on the other side of the polarizer opposite to the object to be detected, and is provided with a receiving polarizer filter. A line lens that emits a polarized light source and detects it. The polarized light alignment detecting device according to claim 1, wherein the linear polarized light source is a surface light source having a polarization characteristic, and a polarizing film for causing a surface light source to have a polarizing characteristic is disposed on the light emitting surface of the light source, and the light source is emitted through the light source. The surface and the polarizing film project a light source of a single wavelength, and the linear polarizing light source is a light source of a light diode (LED) or an organic light emitting diode (OLED). The polarization alignment detecting device of claim 1, wherein the polarizing element converts the linearly polarized light into a pseudo-randomly polarized patterned retarder, and the polarizing element carries the spatial signal of the polarization distributed signal. The light source is projected from the light source projected by the linear polarized light source, and the polarization distribution signal is a spatial type or a light wavelength change. The polarized light detecting device according to claim 1, wherein the polarizer ( Polarizer) is a Nanoparticles in Sodium-Silicate Glass. The polarized light alignment detecting device according to claim 1, wherein the detecting system is a CCD (Charge-coupled Device), and the camera lens is a Telecentric lens. A polarization alignment detecting method includes the steps of: (A) transmitting a surface-external projection light source to a polarizing element through a light source of a linear polarized light source; (B) a polarizing element is a depolarizer of a liquid crystal polymer, and After receiving the light source, the side receives the light source and loads the spatial signal into the light source, and then the light source containing the spatial signal is projected outward to the object to be detected by the other side light emitting surface; (C) the light source passes through the object to be detected and then is projected to the polarizer to The polarizer filters the polarized light signal in the light source to project the light source to the detection system; (D) the imaging lens of the detection system receives the light source passing through the polarizer to obtain a polarized image image and a polarizer having the object to be detected. The polarized message image is further detected; and (E) the object to be detected and the polarizer after the polarization detection are attached to complete the polarization alignment detection. The polarized light alignment detecting method according to the sixth aspect of the invention, wherein the linear polarized light source in the step (A) is a surface light source having a polarization characteristic, and the polarizing light on the light emitting surface of the light source is provided with a polarizing characteristic of the surface light source. The film is projected outward through the light emitting surface and the polarizing film. A light source of a wavelength, and the line polarized light source is a light source of a light diode (LED) or an organic light emitting diode (OLED). The polarization alignment detecting method according to claim 6, wherein the polarizing element in the steps (A) and (B) converts the linearly polarized light into a pseudo-randomly polarized patterned retarder, and the polarizing element The spatial signal of the polarization distribution signal is loaded into the light source projected by the linear polarization source, and the polarization distribution signal is a spatial pattern and a wavelength change of the light. The method of detecting polarized light according to claim 6 , wherein the polarizer in the step (C) is a nanoparticles in Sodium-Silicate Glass. . The polarization alignment detection method according to claim 6, wherein the detection system in the steps (C) and (D) is a CCD (Charge-coupled Device), and the camera lens is a telecentric lens. (Telecentric).