CN107764293B

CN107764293B - Reflection type image detection sensor

Info

Publication number: CN107764293B
Application number: CN201710647015.0A
Authority: CN
Inventors: 林宰正; 金俌映; 郑才焕
Original assignee: Autonics Corp
Current assignee: Autonics Corp
Priority date: 2016-08-17
Filing date: 2017-08-01
Publication date: 2020-07-07
Anticipated expiration: 2037-08-01
Also published as: CN107764293A; TWI657700B; KR101701419B1; CN111664876B; JP6553685B2; JP2018028539A; TW201820850A; CN111664876A

Abstract

The invention provides a reflection type image detection sensor. The reflection type image detection sensor of the present invention includes: a housing; a light receiving unit provided in the housing; and a plurality of light emitting parts provided to the housing along one direction of the housing; the plurality of light emitting sections include: a first group of light emitting parts arranged adjacent to one side of the light receiving part; and a second group of light emitting parts which are provided adjacent to the other side of the light receiving part and are symmetrical to the first group of light emitting parts with the light receiving part as a center; the light receiving unit includes a light receiving shaft extending from the housing to an outside of the housing; the plurality of light emitting units include a plurality of light emitting axes each intersecting the light receiving axis.

Description

Reflection type image detection sensor

Technical Field

The present invention relates to a reflection type image detection sensor (REFLECTIVE TYPE IMAGE DETECTINGSENSOR).

Background

Generally, Glass (Glass) for LCD fabrication is stacked in a cassette and transferred to be put into various processes. Such Glass (Glass) differs in size from generation to generation, and the distance (Pitch) between the Glass (Glass) stacked on the transportation cassette differs.

In the prior art, transmission-type or reflection-type mapping sensors are used for detecting glass. The transmission type or reflection type mapping sensor needs to be provided with a detection optical axis at a certain position for detecting the corresponding glass. Therefore, the transmission type or reflection type mapping sensor of the related art can develop and manufacture a plurality of products only according to different processes and different generation distances (Pitch). In the case of the transmission type mapping sensor, a vertical angle, a Glass (Glass) reference setting height, and the like are required to be set in consideration of the setting environment.

Disclosure of Invention

Problems to be solved

The present invention aims to solve the above-mentioned problems and others. Another object of the present invention is to provide a reflection type image sensor which has a plurality of light emitting parts symmetrical with respect to a light-life part and can detect glasses of various sizes.

Means for solving the problems

In order to achieve the above-mentioned aspect, according to one aspect of the present invention, there is provided a reflection type image detection sensor comprising: a housing; a light receiving unit provided in the housing; and a plurality of light emitting parts provided to the housing along one direction of the housing; the plurality of light emitting sections include: a first group of light emitting parts arranged adjacent to one side of the light receiving part; and a second group of light emitting parts which are provided adjacent to the other side of the light receiving part and are symmetrical to the first group of light emitting parts with the light receiving part as a center; the light receiving unit includes a light receiving shaft extending from the housing to an outside of the housing; the plurality of light emitting units include a plurality of light emitting axes each intersecting the light receiving axis.

According to another (antenna) aspect of the present invention, the first group of light emitting sections includes:

a first light emitting section; and a second light emitting unit located between the first light emitting unit and the light receiving unit.

According to another aspect of the present invention, a distance between the first light-emitting portion and the second light-emitting portion is larger than a distance between the light-receiving portion and the second light-emitting portion.

According to another (antenna) aspect of the present invention, the first light-emitting portion has a first light-emitting axis;

the second light emitting unit includes a second light emitting axis; an angle formed by the first light-emitting axis and the light-receiving axis is larger than an angle formed by the second light-emitting axis and the light-receiving axis.

According to another (antenna) aspect of the present invention, the light receiving axis is inclined from a normal to one direction of the housing.

According to another aspect of the present invention, the plurality of light emitting portions are aligned in a row along one direction of the housing, and the light receiving portion is offset from the row.

According to another aspect of the present invention, the light receiving unit includes: an image sensor located on the light receiving axis; a slit formed on the light receiving axis; and a lens located between the image sensor and the slit

According to another (antenna) aspect of the present invention, the light receiving portion includes a filter between the lens and the image sensor.

According to another aspect of the present invention, the housing includes a partition wall formed around the slit.

According to another aspect of the present invention, the partition wall protrudes in front of the light receiving portion and surrounds the slit.

According to another (aspect) of the present invention, the partition wall includes: a first portion spaced apart from the slit, extending in a longitudinal direction of the slit, and located above the slit; a second part which is separated from the slit, extends along the length direction of the slit and is positioned at the lower part of the slit; and a third portion extending from one end of the first portion to one end of the second portion; the distance from the slit to the first portion or the second portion is smaller than the distance from the slit to the third portion.

According to another (antenna) aspect of the present invention, the light emitting unit includes: a light emitting element located on the light emitting axis; a lens located on the light emitting axis; and a slit formed between the light emitting element and the lens.

According to another aspect of the present invention, the light-receiving device includes a first light-receiving portion provided in the housing; a second light receiving part spaced apart from the first light receiving part; a plurality of light emitting portions provided in order from the first light receiving portion to the second light receiving portion; at least one of the plurality of light emitting portions includes a light emitting axis intersecting with a light receiving axis of the first light receiving portion; at least another one of the plurality of light emitting portions has a light emitting axis intersecting with a light receiving axis of the second light receiving portion.

According to another aspect of the present invention, at least one of the plurality of light-emitting portions having the light-emitting axis intersecting the light-receiving axis of the first light-receiving unit is closer to the second light-receiving unit than at least another one of the plurality of light-emitting portions having the light-emitting axis intersecting the light-receiving axis of the second light-receiving unit.

According to another (antenna) aspect of the present invention, the housing includes a plurality of installation portions for installation of the plurality of light emitting portions; the plurality of installation sections include: a first set of installation parts arranged adjacent to one side of the light receiving part; and a second set of installation parts which are arranged adjacent to the other side of the light receiving part and are symmetrical with the first set of installation parts by taking the light receiving part as a center; one of the first set of mounting portions has a different inclination than the other of the first set of mounting portions.

According to another (antenna) aspect of the invention, the distance between each of the first set of mountings is different.

Effects of the invention

The reflective image detection sensor of the embodiment of the present invention has the following effects:

according to at least one of the embodiments of the present invention, the plurality of light emitting portions are provided in quasi-symmetry with respect to the light receiving portion, so that glasses of various sizes can be detected.

According to at least one of the embodiments of the present invention, the plurality of light emitting portions are provided in quasi-symmetry with respect to the light receiving portion, so that the number of light receiving portions can be reduced.

According to at least one of the embodiments of the present invention, the plurality of light emitting portions are arranged in quasi-symmetry with respect to the light receiving portion, so that the product can be simplified.

According to at least one of the embodiments of the present invention, the plurality of light emitting portions and light receiving portions are combined to the flexible wiring, so that it can be easily applied to various products.

According to at least one of the embodiments of the present invention, the overlapping light emitting region detects glass, so that reliability and accuracy of a product can be improved.

Drawings

Fig. 1 is a schematic view showing an example of a detection device of a reflection type image detection sensor according to an embodiment of the present invention;

fig. 2 is a schematic view showing an example of a detection algorithm of the reflection type image detection sensor according to the embodiment of the present invention;

fig. 3 is a schematic view showing an example of the arrangement of a reflection type image detection sensor according to an embodiment of the present invention;

fig. 4A and 4B are schematic views showing an example of positions of a light emitting portion and a light receiving portion according to an embodiment of the present invention;

FIGS. 5A and 5B are schematic views showing an example of inclination of a light emitting section according to an embodiment of the present invention;

FIG. 6 is a schematic view showing an example of the decomposition of the light emitting section according to the embodiment of the present invention;

fig. 7 is a schematic view showing an example of the disassembly of the light receiving unit according to the embodiment of the present invention;

fig. 8 is a schematic view showing an example of a reflection type image detection sensor constructed in one set according to an embodiment of the present invention;

fig. 9 and 10 are schematic diagrams showing an example of the optical range of the optical signal of fig. 8;

fig. 11 is a schematic view showing an example of a reflection type image detection sensor configured in two sets according to an embodiment of the present invention;

fig. 12 and 13 are schematic diagrams showing an example of the optical range of the optical signal of fig. 11;

FIG. 14 is a schematic view showing an example of a blind spot generated between the first and second sets;

FIG. 15 is a diagram illustrating an example of an accepted spectrum according to an embodiment of the present invention;

fig. 16 to 18 are schematic views showing an example of the inclination angle and the optical path according to the change in distance of the reflection type image detection sensor according to the embodiment of the present invention;

FIG. 19 is a diagram showing an example of the relationship between power and the number of pixels according to an embodiment of the present invention;

fig. 20 is a schematic view showing an example of a flexible wiring of a reflection type image detection sensor according to another embodiment of the present invention;

FIGS. 21 to 23 are views showing an example of combination of a flexible electric wire and a light emitting part according to another embodiment of the present invention;

FIG. 24 is a schematic view showing an example of a state where a light emitting section is coupled to a flexible electric wire according to another embodiment of the present invention;

fig. 25 is a schematic view showing an example of a module fixing portion according to an embodiment of the present invention;

fig. 26 is a schematic view showing an example of providing a module fixing portion in a detection sensor in a reflection type image detection sensor configured in two sets according to another embodiment of the present invention.

Detailed Description

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, and the same or similar structures will be given the same reference numerals, and overlapping descriptions will be omitted. The suffix "module" or "section" of the structure used in the following description is merely used for convenience of description in consideration of the specification, and does not have a mutually different meaning or function. In addition, in describing the invention disclosed in the present specification, if it is considered that a detailed description of the related disclosed technology hinders an understanding of the present invention, a detailed description thereof will be omitted. The drawings are only for the purpose of facilitating understanding of the embodiments disclosed in the specification, and are not intended to limit the technical spirit disclosed in the present invention, and include all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

Ordinal numbers such as first, second, etc. indicating order may be used to describe various structures, but the structures are not limited by the terms. The above terms are intended to distinguish one structure from another.

One structure is "connected" or "connected" to another structure means directly connected or connected to or connected through the other structure. In contrast, a structure is "directly connected" or "directly accessed" to another structure in that there is no intervening structure present.

Where the context does not differ significantly, singular references include plural references.

In the present application, the terms "comprises" or "comprising" or the like mean that there are the features, numbers, steps, actions, structures, components, or combinations thereof described in the specification, but do not preclude the presence or addition of one or more other features, numbers, steps, actions, structures, components, or combinations thereof.

As shown in fig. 1, the transport box (Cassette)110 is a rectangular three-dimensional box, and one side thereof is opened. The Cassette (Cassette)110 may be provided with at least one Slot (Slot) spaced apart from each other inside.

The Cassette (Cassette)110 may load at least one or more Glass display manufacturing glasses (glasses) 11 through an open side facing the Slot (Slot). The transportation box (Cassette)110 may have different rectangular three-dimensional box volumes depending on the size of the Glass (Glass)111 for display production.

Various sizes of Glass (Glass)111 for display fabrication can be loaded into slots of transport cassettes (cases) 110 having different volumes. The Cassette (Cassette)110 may be stacked with a Glass (Glass)111 for display fabrication, transferred, and put into a plurality of processes.

The detection sensor 120 is provided at a predetermined distance from one side surface of the device on which the display manufacturing Glass (Glass)111 is mounted. The detection darkling device 120 may include a housing HA (see fig. 8 and 11) extending in a longitudinal direction, a light receiving portion LR (see fig. 8 and 11) disposed on the housing HA, and a plurality of light emitting portions LP disposed on the housing HA along a longitudinal direction of the housing HA. The detection sensor 120 can output an optical signal to the display production Glass (Glass)111 mounted thereon by using the plurality of light-emitting portions LP. The optical signal is reflected by the side surface or edge of the Glass (Glass)111 for display fabrication and received by the light receiving portion LR. The detection sensor 120 will be described in detail later.

The main control unit 130 is electrically connected to the detection sensor 120 by wire or wireless. The main control part 130 obtains a signal supply from the detection sensor 120 and analyzes it with a recognition algorithm. The main control part 130 can recognize whether or not the display production Glass (Glass)111 is loaded in the slot of the loading device by analyzing the received optical signal using a recognition algorithm.

The main control unit 130 can indicate whether it is mounted or not by a display unit (not shown). The main control unit 130 may turn on (turn on) Green (Green) LEDs when the display production Glass (Glass)111 is loaded in the slot, and turn on (turn on) Red (Red) LEDs when the display production Glass (Glass) is not loaded. The main control unit 130 may further include a presentation unit configured to determine that the defective fraction is high and present the determined defective fraction to the administrator when the display production Glass (Glass)111 mounted in the slot falls below a set reference range.

Here, the description has been given taking an example in which the main control unit 130 is provided with a display unit, but the present invention is not limited thereto, and the detection sensor 120 may be provided with a display unit. The detection sensor 120 may be provided with a display portion on the opposite side surface to the side surface on which the light emitting portion LP or the light receiving portion LR is provided. The detection sensor 120 may turn on (turn on) a Green (Green) LED or a Red (Red) LED on the display part by obtaining the determination data of the analysis light signal from the main control part 130.

In fig. 1, the main control unit 130 and the detection sensor 120 are shown as being provided separately from each other, but the present invention is not limited thereto, and the main control unit 130 and the detection sensor 120 may be designed as one unit.

As shown in fig. 2, the reflection type image detection sensor 120 may be as follows according to the equation of the set distance detection glass 111:

[ numerical formula 1]

Theta is the maximum angle of acceptance of the last glass sheet 111 laminated to the slot of the loading device 110 about the acceptance axis LRA. Y is the maximum distance between the detection sensor 120 and the glass 111 laminated in the slot of the loader 110, and X is the installation distance of the last glass 111 laminated in the slot of the loader 110, based on the light receiving unit LR.

[ numerical formula 2]

φ₁＝φ·M

Φ 1 is a light incident angle, Φ is a perceived light receiving angle received through the front surface of the lens provided in the light receiving portion LR, and can represent an M lens magnification.

[ numerical formula 3]

X1 is a deviation distance of the glass 111 laminated on the loader 110 on the light receiving path, Y is a maximum set distance between the detection sensor 120 and the glass 111 laminated on the slot of the loader 110, and Y1 may represent a deviation distance by which the glass 111 laminated on the slot of the loader 110 may be physically deviated.

[ numerical formula 4]

L is a distance acceptable for the image sensor of the light receiving section LR around the light receiving axis LRA, and D is a constant that can determine a light receiving path according to distortion of the lens.

When the above expressions 1 to 4 are used, even if the glass 111 in the corresponding Slot (Slot) is deviated or the position of the loading device 110 is distorted or the glass 111 is bent, the path reflected by the side surface or the edge surface of the glass 111 may have a certain range.

A plurality of products can be arranged into a detection mode for extrusion in the above numerical expression, so that the products are simplified.

As shown in fig. 3, the housing HA may be formed as a rectangular solid box elongated in the first direction DR 1. The housing HA may be provided with the light receiving portion LR and the plurality of light emitting portions LP1 to LP6 in order on a surface facing the loading device 110.

The light receiving portion LR may be provided substantially at the center of the housing HA.

At least two or more of the light emitting portions LP1 to LP6 may be provided in the housing HA in a first direction which is a longitudinal direction of the housing HA. The plurality of light-emitting portions LP1 to LP6 may include first group light-emitting portions LP1 to LP3 including at least one or more light-emitting portions LP and second group light-emitting portions LP3 to LP6 including at least one or more light-emitting portions LP.

The first group light-emitting portions LP1 to LP3 may be provided adjacent to one side of the light-receiving portion LR. The first group of light emitting parts LP1 to LP3 may include first to third light emitting parts LP1 to LP 3. The third light-emitting part LP3 may be located between the second light-emitting part LP2 and the light-receiving part LR. The first light emitting portion LP1 is provided at one side of the second light emitting portion LP2, and the third light emitting portion LP3 is provided at the other side.

The spacing W2 between the second light-emitting portion LP2 and the third light-emitting portion LP3 may be larger than the spacing W1 between the third light-emitting portion LP3 and the light-receiving portion LR. The spacing W3 between the first and second light emitting portions LP1 and LP2 may be greater than the spacing W2 between the second and third light emitting portions LP2 and LP 3.

The distance W1 between the light-receiving portion LR and the third light-emitting portion LP3, the distance W2 between the third light-emitting portion LP3 and the second light-emitting portion LP2, and the distance W3 between the second light-emitting portion LP2 and the first light-emitting portion LP1 may gradually increase.

The light receiving portion LR may include a light receiving axis LRA extending to the outside of the housing HA. The light receiving axis may extend in the second direction DR 2. The light receiving axis LRA may be a horizontal direction DR2 intersecting the vertical direction DR 1. Here, the horizontal direction DR2 may be a direction in which the detection sensor 120 faces the loading device 110.

Each of the light emitting units LP1 to LP6 may include a plurality of light emitting axes LPA intersecting the light receiving axis LRA. The first light emitting portion LP1 may have a first light emitting axis LPA1, the second light emitting portion LP2 may have a second light emitting axis LPA2, and the third light emitting portion LP3 may have a third light emitting axis LPA 3.

The angle formed by the first light emitting axis LPA1 and the light receiving axis LRA may be larger than the angle formed by the second light emitting axis LPA2 and the light receiving axis LRA. An angle formed by the second light emitting axis LPA2 and the light receiving axis LRA may be larger than an angle formed by the third light emitting axis LPA3 and the light receiving axis LRA. Therefore, the farther the first group light-emitting portions LP1 to LP3 are from the side of the light-receiving portion LR, the larger the distance between the light-emitting portions LP1 to LP3 is, and the larger the angle formed with the light-receiving axis LRA is.

The second group light-emitting portions LP4 to LP6 may be provided adjacent to the other side of the light-receiving portion LR. The second group of light-emitting parts LP4 to LP6 may include fourth to sixth light-emitting parts LP4 to LP 6. The fourth light-emitting part LP4 may be located between the fifth light-emitting part LP5 and the light-receiving part LR. The fourth light-emitting section LP4 is provided on one side of the fifth light-emitting section LP5, and the sixth light-emitting section LP6 is provided on the other side.

The spacing W2 between the fourth light-emitting part LP4 and the fifth light-emitting part LP5 may be larger than the spacing W1 between the fourth light-emitting part LP4 and the light-receiving part LR. The spacing W3 between the fifth light-emitting section LP5 and the sixth light-emitting section LP6 may be larger than the spacing W2 between the fourth light-emitting section LP4 and the fifth light-emitting section LP 5.

The distance W1 between the light-receiving portion LR and the fourth light-emitting portion LP4, the distance W2 between the fourth light-emitting portion LP4 and the fifth light-emitting portion LP5, and the distance W3 between the fifth light-emitting portion LP5 and the sixth light-emitting portion LP6 may gradually increase.

In addition, the fourth light emitting part LP4 may be provided with the fourth light emitting axis LPA4, the fifth light emitting part LP5 may be provided with the fifth light emitting axis LPA5, and the sixth light emitting part LP6 may be provided with the sixth light emitting axis LPA 6.

An angle formed by the sixth light emitting axis LPA6 and the light receiving axis LRA may be larger than an angle formed by the fifth light emitting axis LPA5 and the light receiving axis LRA. An angle formed by the fifth light emitting axis LPA5 and the light receiving axis LRA may be larger than an angle formed by the fourth light emitting axis LPA4 and the light receiving axis LRA. Therefore, the second group light-emitting units LP4 to LP6 have a larger pitch between the light-emitting units LP as they are farther from the side of the light-receiving portion LR, and have a larger inclination angle to the light-receiving axis LRA.

The first group light-emitting parts LP1 to LP3 provided on one side of the light-receiving portion LR and the second group light-emitting parts LP4 to LP6 provided on the other side of the light-receiving portion LR may be symmetrical with respect to the light-receiving portion LR. That is, the third light emitting portion LP3 may be symmetrical to the fourth light emitting portion LP4, the second light emitting portion LP2 may be symmetrical to the fifth light emitting axis LP5, and the first light emitting portion LP1 may be symmetrical to the sixth light emitting portion LP 6.

Therefore, the light receiving portion LR can receive the light emitted from the plurality of light emitting portions LP1 to LP 6.

For example, H may be 85mm, W may be 120mm, W1 may be 32mm, W2 may be 40mm, and W3 may be 48mm, and the first light-emitting portion LP1 may be inclined at about 20 degrees, the second light-emitting portion LP2 may be inclined at about 10 degrees, and the third light-emitting portion LP3 may be inclined at about 5 degrees.

In fig. 3, the detection sensor 120 is illustrated, but not limited, as being disposed at a distance from the loading device 110. As the distance between the detection sensor 120 and the loading device 110 is changed, the angles at which the first group light emitting parts LP1 to LP3 and the second group light emitting parts LP4 to LP6 are inclined may also be changed. This will be explained in detail in the following.

As shown in fig. 4A, each of the plurality of light-emitting portions LP may have a center point CP. The center point CP may be defined as a position through which the optical axis of the light emitting portion LP passes. The light emission center line CL may be defined as a line connecting the plurality of center points CP. The light emitting portions LP may be aligned in a row along the longitudinal direction DR1 of the housing HA with respect to the light emitting center line CL.

In addition, the light emitting axis LPA crossing the light receiving axis LRA may pass through the center point CP.

As shown in fig. 4B, the light receiving portion LR may include a center point of the light receiving portion LR. The center point of the light receiving portion LR may be defined as a position passing through the optical axis of the light receiving portion LR. The center point of the light receiving portion LR may be disposed at the housing HA with a distance h1 from the light emission center line. Therefore, the light receiving portion LR can be provided to the housing HA with a plurality of light emitting portions LP aligned in a row being offset.

The light receiving section LR can detect a wider area as more light signals output from the plurality of light emitting sections LP are received. That is, as the number of optical signals increases, the detection region of the light receiving portion LR becomes wider.

The light receiving portion LR is disposed with the center point of the light receiving portion LR being displaced from the light emission center line h1, and is located on the light emission center line compared with the center point of the light receiving portion LR, whereby the sensitivity of the detection sensor 120 can be relatively improved.

That is, although there is a possibility that the light supplied from the light emitting section LP is reflected by the object to be detected and received by the light receiving section LR, and interference occurs in this process, for example, when the glass substrate is bent or the sizes of the objects to be detected are different from each other, the sensitivity of the detection sensor 120 can be improved even if interference occurs in the structure of the light receiving section LR as described above.

As another example, the light provided by the light emitting portion LP is reflected by the background behind the detection object, which is not the detection object, and is incident on the light receiving portion LR, and the sensitivity of the detection sensor 120 can be improved even if the light receiving portion LR is configured to interfere with the background.

For example, the fixed range h1 in which the center point of the light receiving portion LR is deviated from the light emission center line may be 3.30mm to 3.44 mm.

As shown in fig. 5A, the light receiving portion LR may include a light receiving axis LRA extending to the outside of the housing HA.

As shown in fig. 5B, the light receiving axis LRA may be inclined from the light emitting axis LPA. In this case, the light receiving axis LRA may have an inclination angle of about 4.0 degrees to 4.5 degrees with respect to the light emitting axis LPA.

Since the light receiving axis LRA is inclined from the light emitting axis LPA, the sensitivity of the detection sensor 120 can be relatively improved as compared with the case where the light receiving axis LRA coincides with the light emitting axis LPA.

That is, although there is a possibility that the light supplied from the light emitting section LP is reflected by the object to be detected and received by the light receiving section LR, in this process, for example, if the glass substrate is bent or the sizes of the objects to be detected are different from each other, the sensitivity of the detection sensor 120 can be improved even if the inclination of the light receiving section LR is disturbed as described above.

As another example, the light provided by the light emitting portion LP is reflected by the background behind the detection object, which is not the detection object, and is incident on the light receiving portion LR, and the sensitivity of the detection sensor 120 can be improved even if the inclination of the light receiving portion LR interferes.

The light receiving unit LR has a center point that is offset from the light emission center line CL and the light receiving axis LRA that is inclined, so that the detection region can be widened and the edge surface of the display production glass 111 can be detected more accurately.

As shown in fig. 6, the light emitting portion LP may include a light emitting element LED, a lens LN, and a slit LPST.

The light emitting element LED may be disposed on the light emitting axis LPA. The Light Emitting element LED may include an LED (Light-Emitting Diode) as a Light Emitting Diode or an oled (organic Light-Emitting diodes) as an organic Light Emitting Diode.

The lens LN may be disposed on the light emission axis LPA. The lens LN can refract light incident from the light emitting element LED at different angles and supply the light to the edge surface of the display manufacturing glass 111 mounted on the mounting device 110.

The slit LPST may be disposed between the light emitting element LED and the lens LN. The slit LPST may be defined as a narrow slit formed by two sides arranged side by side. The slit LPST can limit the width of light output from the light emitting element by a narrow slit.

As shown in fig. 7, the light receiving portion LR may include a slit LRST, a lens LN, and an image sensor IS.

The slit LRST may be disposed on the receiving axis LRA. The slit LRST allows light reflected from the edge surface of the display production glass 111 to pass therethrough.

The lens LN may be disposed on the acceptance axis LRA. The lens LN may be disposed between the slit LRST and the image sensor IS. The lens LN can converge the light received through the slit LRST to the image sensor IS.

The image sensor IS may be disposed on the light receiving axis LRA. The image sensor IS may supply the varied light signal to the main control part 130.

The filter FL may be disposed between the lens LN and the image sensor IS. The filter FL Filters (FL) the received light to remove distorted or unnecessary reflected light.

As shown in fig. 8 to 10, the reflection type image detection sensor 120 may include a housing HA1, HA2, a light receiving portion LR1, and a light emitting portion LP.

Enclosures HA1, HA2 may include a first enclosure HA1 and a second enclosure HA 2. The first casing HA1 may include a plurality of light emitting portions LP11 to LP16 and a light receiving portion LR1 on one side surface. The partition wall 140 may be provided around the light receiving portion LR1 and the slit LRST. Since the partition wall 140 surrounds the slit LRST at a constant height, the light receiving portion LR1 can be blocked from flowing into the light receiving portion LR1 at the periphery thereof. The second housing HA2 is coupled to the other side surface of the first housing HA1 to fix the plurality of light emitting portions LP11 to LP16 and the light receiving portion LR 1.

As shown in fig. 8, the partition 140 may be positioned around the slit LRST. The partition wall 140 surrounds the slit LRST and protrudes in front of the light receiving portion LR 1. The partition 140 may include a first portion 141, a second portion 142, a third portion 143, and a fourth portion 144.

The first portion 141 may be located at an upper portion of the slot LRST. At this time, the first portion 141 may be spaced a distance D1 from the slot LRST. The second portion 142 may be located at a lower portion of the slot LRST. The second portion 142 may be spaced a distance D2 from the slot LRST. Distance D2 may be the same as distance D1. The second portion 142 may be opposite to the first portion 141.

The third portion 143 may extend from one end of the first portion 141 to one end of the second portion 142. The fourth portion 144 may extend from the other end of the first portion 141 to the other end of the second portion 142. The fourth portion 144 may be opposite the third portion 143. The third portion 143 may be located to the right or left of the slot LRST. At this time, the third portion 143 may be spaced a distance D3 from the slit LRST. The fourth portion 144 may be located to the left or right of the slot LRST. At this point, the fourth portion 144 may be spaced a distance D4 from the slot LRST.

The distances D3, D4 may be greater than the distances D1, D2. Therefore, the range of light passing through the slit LRST can be expanded with the slit LRST directed to the left and right. This is to make the light provided by the light emitting section LP flow more into the light receiving section LR.

As shown in FIG. 9, the casing HA1 may have mounting portions 121-126. The casing HA1 may have a plurality of mounting portions 121-126. The mounting portions 121 to 126 provide a base on which the light emitting portion LP is mounted. The plurality of mounting portions 121 to 126 may include a base inclined to some extent, and the angle of the base may be perpendicular to the light emission axis LPA of the light emission portion LP described above or below.

In fig. 9 and 10, the plurality of display production glasses 111 are expressed as first glass 1 to eleventh glass 11.

As shown in fig. 9 and 10, the plurality of light emitting parts LP may include eleventh to sixteenth light emitting parts LP11 to LP 16. The eleventh to thirteenth light-emitting parts LP11 to LP13 may be disposed at one side of the light-receiving part LR1, and the fourteenth to sixteenth light-emitting parts LP14 to LP16 may be disposed at the other side of the light-receiving part LR 1.

The eleventh light emitting unit LP11 may have a light range LS11 or an irradiation angle that can detect the first glass 1 to the third glass 3.

The twelfth light emitting part LP12 may have a light range LS12 or an irradiation angle that can detect the third glass 3 and/or the fourth glass 4 or detect the third glass 3 to the fifth glass 5.

The thirteenth light emitting part LP13 may be provided with a light range LS13 or an irradiation angle that can detect the fourth glass 4 to the sixth glass 6.

The fourteenth light emitting unit LP14 may have a light range LS14 or an irradiation angle capable of detecting the sixth glass 6 to the eighth glass 8.

The fifteenth light emitting portion LP15 may have a light range LS15 or an irradiation angle that can detect the eighth glass 8 and/or the ninth glass 9 or the seventh glass 7 to the ninth glass 9.

The sixteenth light-emitting unit LP16 may have a light range LS16 or an irradiation angle that can detect the ninth glass 9 to the eleventh glass 11.

The light range LS or illumination angle may be referred to as the light signal.

The reflection type image detection sensor 120 overlaps with each other a part of the eleventh light signal LS11 to the sixteenth light signal LS16 to detect the first glass 1 to the eleventh glass 11.

The eleventh to sixteenth light emitting parts LP11 to LP16 overlap to output the eleventh to sixteenth optical signals LS11 to LS16 to accurately detect the first to eleventh glasses 1 to 11 loaded in the slot of the loading device 110 without omission.

An overlapping range OL2 where the twelfth optical signal LS12 and the thirteenth optical signal LS13 overlap may be greater than an overlapping range OL1 where the eleventh optical signal LS11 and the twelfth optical signal LS12 overlap. That is, the superimposed optical signal LS becomes wider as it approaches the light receiving portion LR 1.

The thirteenth light emitting portion LP13 and the fourteenth light emitting portion LP14 disposed at both sides of the light receiving portion LR1 overlap the thirteenth optical signal LS13 and the fourteenth optical signal LS14 with each other to accurately detect the fifth glass 5 to the seventh glass 7 disposed at the region corresponding to the light receiving portion LR 1.

The reflection type image detection sensor 120 can accurately detect the display forming glass 111 even when the display forming glass 111 mounted on the mounting device 110 is bent or is not accurately arranged in the slit by superimposing the optical signal LS.

As shown in fig. 11 to 13, the reflection type image detection sensor 120 may be configured in a plurality of sets. Each of the plurality of sets may include a plurality of light emitting portions LP and light receiving portions LR. The plurality of sets are illustrated as a first Set of Set1 and a second Set of Set 2.

The first and second sets of Set1, 2 can detect the plurality of display production glasses 111 loaded on the loading device 110. In fig. 12 and 13, the plurality of display production glasses 111 are expressed as first glass 1 to twenty-second glass 22.

As shown in fig. 11, the partition 140 may be positioned around the slit LRST. The partition wall 140 surrounds the slit LRST and protrudes in front of the light receiving portion LR 1. The partition 140 may include a first portion 141, a second portion 142, a third portion 143, and a fourth portion 144.

As shown in FIG. 12, the housing HA1 may include mounting portions 121-126, 121 '-126'. The housing HA1 may have a plurality of attachment portions 121-126, 121 '-126'. The installation parts 121-126, 121 '-126' can provide a base for mounting the light emitting part LP. The plurality of mounting portions 121 to 126 may include a base inclined to some extent, and the angle of the base may be perpendicular to the light emission axis LPA of the light emission portion LP described above or below.

The distance of the first light receiving portion LR1 to the installation portion 124 may be smaller than the distance of the installation portion 124 to the installation portion 125. The distance of the mount 125 to the mount 126 may be greater than the distance of the mount 124 to the mount 125.

The inclination of the installation part 126 may be greater than the inclination of the installation part 125, and the inclination of the installation part 125 may be greater than the inclination of the installation part 124. That is, the inclination of the installation portions 121 to 126, 121 'to 126' becomes wider as the distance from the first light receiving portion LR1 or the second light receiving portion LR2 becomes longer.

The installation portion 126 and the installation portion 121' may have a V-shape as a whole. The inclination of them or their bases may be the same. The light emitting sections LP can be placed or set on the installation sections 121-126, 121 '-126'.

As shown in fig. 11 and 12, in the first Set1, the plurality of light-emitting portions LP may include an eleventh light-emitting portion LP11 to a sixteenth light-emitting portion LP 16. The eleventh to thirteenth light-emitting parts LP11 to LP13 may be disposed at one side of the first light-receiving part LR1, and the fourteenth to sixteenth light-emitting parts LP14 to LP16 may be disposed at the other side of the first light-receiving part LR 1.

In the second Set of Set2, the plurality of light-emitting portions LP may include twenty-first light-emitting portions LP21 through twenty-sixth light-emitting portions LP 26. The twenty-first to twenty-third light-emitting portions LP21 to LP23 may be disposed at one side of the second light-receiving portion LR2, and the twenty-fourth to twenty-sixth light-emitting portions LP24 to LP26 may be disposed at the other side of the second light-receiving portion LR 2.

As shown in fig. 12 and 13, the twenty-first light emitting unit LP21 may have a light range LS21 or an irradiation angle that can detect the twelfth glass 12 to the fourteenth glass 14.

The twenty-first light emitting part LP21 may be disposed between the fifteenth light emitting part LP15 and the sixteenth light emitting part LP 16. The optical axis of the twenty-first light emitting part LP21 may cross the optical axis of the sixteenth light emitting part LP 16.

The twenty-second light-emitting unit LP22 may have a light range LS22 or an irradiation angle that can detect the fourteenth glass 14 and/or the fifteenth glass 15 or detect the fourteenth glass 14 to the sixteenth glass 16.

A sixteenth light-emitting portion LP16 may be provided between the twenty-first light-emitting portion LP21 and the twenty-second light-emitting portion LP 22.

The twenty-third light-emitting unit LP23 may have a light range LS23 or an irradiation angle that can detect the fifteenth glass 15 to the seventeenth glass 17.

The twenty-fourth light-emitting unit LP24 may have a light range LS24 or an irradiation angle that can detect the seventeenth glass 17 to the nineteenth glass 19.

The twenty-fifth light emitting unit LP25 may have a light range LS25 or an irradiation angle that can detect the nineteenth glass 19 and/or the twentieth glass 20 or detect the eighteenth glass 18 to the twentieth glass 20.

The twenty-sixth light emitting unit LP26 may have a light range LS26 or an irradiation angle that can detect the twentieth to twenty-second glasses 20 to 22.

The reflection type image detection sensor 120 detects the first to twenty-second glasses 1 to 22 overlapping with each other a part of the eleventh light range LS11 to the twenty-sixth light signal LS 26.

Therefore, the first to eleventh glasses 1 to 11 loaded in the slot of the loading device 110 can be accurately detected without omission.

The overlapping range where the twelfth light range LS12 and the thirteenth light range LS13 overlap may be larger than the overlapping range where the eleventh light range LS11 and the twelfth light range LS12 overlap. That is, the overlapping light range becomes wider as the first light receiving portion LR1 becomes closer.

Or the overlapping range where the twenty-second light range LS22 and the twenty-third light range LS23 overlap may be larger than the overlapping range where the twenty-first light range LS21 and the twenty-second light range LS22 overlap. That is, the overlapping light range becomes wider as the second light receiving portion LR2 becomes closer.

The thirteenth light emission range LS13 and the fourteenth light emission range LS14 disposed on both sides of the first light receiving portion LR1 are overlapped with each other to accurately detect the fifth glass 5 to the seventh glass 7 disposed at the region corresponding to the first light receiving portion LR 1.

The twenty-third light emission range LS23 and the fourteenth light emission range LS24, which are disposed on both sides of the second light receiving portion LR2, overlap each other to accurately detect the sixteenth glass 16 to the eighteenth glass 18 disposed in the region corresponding to the second light receiving portion LR 2.

As shown in fig. 14, when the optical axes of the sixteenth light-emitting part LP16 of the first Set1 and the twenty-first light-emitting part LP21 of the second Set2 do not want to intersect, a blind area BS may be generated.

If the blind area BS exists in this way, the detection sensor 120 cannot detect the display production Glass (Glass)111 provided in the blind area BS.

In order to eliminate the blind zone BS, the reflection type image sensor 120 includes a twenty-first light emitting unit LP21 of the second Set2 between the fifteenth light emitting unit LP15 and the sixteenth light emitting unit LP16 of the first Set1, and a sixteenth light emitting unit LP16 of the first Set1 between the twenty-first light emitting unit LP21 and the twenty-second light emitting unit LP22 of the second Set 2.

The reflection type image detection sensor 120 makes the optical axes of the sixteenth light emitting part LP16 of the first Set1 and the twenty-first light emitting part LP21 of the second Set2 intersect with each other to eliminate the blind area BS in the boundary area between the first Set1 and the second Set 2.

Therefore, the reflective image detection sensor 120 can accurately detect the Glass (Glass)111 for display manufacturing mounted in the slot of the mounting apparatus 110 without omission.

In addition, even when the display production glass 111 mounted on the mounting device 110 is bent or is not accurately arranged in the slot, the display production glass 111 can be detected more accurately.

Fig. 15 (a) shows an image in which the light emission axis LPA and the light reception axis LRA are horizontal as in fig. 5A. When the light emitting axis LPA and the light receiving axis LRA are horizontal, there is a possibility that background light other than the glass substrate is generated.

Due to the presence of the backlight, the side surface or the edge surface of the display manufacturing glass 111 cannot be accurately detected and may not be read.

Fig. 15 (B) shows an image in which the light receiving axis LRA is inclined at a predetermined angle as shown in fig. 5B. The side or edge surfaces of the display manufacturing glass 111 loaded in the slot of the loading device 110 can be detected more accurately.

As shown in fig. 16 to 18, the detection sensor 120 may be disposed at a distance SD from the loading device 110. The detection sensor 120 changes the inclination angle of the light emitting section LP according to the distance SD from the loading device 110.

As shown in fig. 16, the detection sensor 120 may be disposed a first spaced distance SD1 from the loading device 110. The detection sensor 120 may include first to sixth light emitting parts LP1 to LP 6. The first to third light-emitting portions LP1 to LP3 may be disposed at one side of the light-receiving portion LR, and the fourth to sixth light-emitting portions LP4 to LP6 may be disposed at the other side of the light-receiving portion LR.

Here, the inclination angle may be defined as an angle formed by the light emitting axis LPA and the light receiving axis LRA.

The first light emitting portion LP1 may have an eleventh inclination angle a 11. The second light emitting part LP2 may have a twelfth inclination angle a12 smaller than the eleventh inclination angle a 11. The third light emitting part LP3 may have a thirteenth inclination angle a13 smaller than the twelfth inclination angle a 12.

The fourth light emitting unit LP4 may have a fourteenth inclination angle a 14. The fourteenth inclination angle a14 and the thirteenth inclination angle a13 have the same absolute value and may be quasi-symmetrical about the optical axis LRA. The fifth light emitting part LP5 may have a fifteenth inclination angle a 15. The fifteenth inclination angle a15 and the twelfth inclination angle a12 have the same absolute value and may be quasi-symmetrical about the optical axis LRA. The sixth light emitting unit LP16 may have a sixteenth inclination angle a 16. The sixteenth inclination angle a16 and the eleventh inclination angle a11 have the same absolute value and may be quasi-symmetrical about the optical axis LRA.

As shown in fig. 17, the detection sensor 120 may be disposed a second separation distance SD2 from the loader 110. The detection sensor 120 may include first to sixth light emitting parts LP1 to LP 6. The first to third light-emitting portions LP1 to LP3 may be disposed at one side of the light-receiving portion LR, and the fourth to sixth light-emitting portions LP4 to LP6 may be disposed at the other side of the light-receiving portion LR.

The first separation distance SD1 (please refer to fig. 16) may be greater than the second separation distance SD 2. The twenty-first inclination angle a21 corresponds to the eleventh inclination angle a11 (please refer to fig. 16), and may be greater than the eleventh inclination angle a 11. The twenty-second inclination angle a22 corresponds to the twelfth inclination angle a12 (please refer to fig. 16), which may be greater than the twelfth inclination angle a 12. The twenty-third inclination angle a23 corresponds to the thirteenth inclination angle a13, which may be greater than the thirteenth inclination angle a 13.

As shown in fig. 18, the detection sensor 120 may be disposed a third phase distance SD3 from the loading device 110. The detection sensor 120 may include first to sixth light emitting parts LP1 to LP 6. The first to third light-emitting portions LP1 to LP3 may be disposed at one side of the light-receiving portion LR, and the fourth to sixth light-emitting portions LP4 to LP6 may be disposed at the other side of the light-receiving portion LR.

The first light emitting portion LP1 may have a thirty-first inclination angle a 31. The second light emitting unit LP2 may have a thirty-second inclination angle a32 smaller than the thirty-first inclination angle a 31. The third light emitting unit LP3 may have a thirty-third inclination angle a33 smaller than the thirty-second inclination angle a 32. The thirty-first inclination angle a31 to the thirty-third inclination angle a33 may be defined as an angle formed by each light-emitting axis LPA and the light-receiving axis LRA of the light-emitting section LP.

The fourth light emitting unit LP4 may have a thirty-fourth inclination angle a 34. The thirty-fourth inclination angle a34 and the thirty-third inclination angle a33 have the same absolute value and may be quasi-symmetrical about the optical axis LRA. The fifth light emitting unit LP5 may have a thirty-fifth inclination angle a 35. The thirty-fifth inclination angle a35 and the thirty-second inclination angle a32 have the same absolute value and may be quasi-symmetrical about the optical axis LRA. The sixth light emitting unit LP6 may have a thirty-sixth inclination angle a 36. The thirty-sixth inclination angle a36 and the thirty-first inclination angle a31 have the same absolute value and may be quasi-symmetrical about the optical axis LRA.

As shown in fig. 17 and 18, the second separation distance SD2 may be greater than the third separation distance SD 3. The thirty-first inclination angle a31 corresponds to the twenty-first inclination angle a21, and may be greater than the twenty-first inclination angle a 21. The thirty-second inclination angle a32 corresponds to the twenty-second inclination angle a22, which may be greater than the twenty-second inclination angle a 22. The thirty-third inclination angle a33 corresponds to the twenty-third inclination angle a23, which may be greater than the twenty-third inclination angle a 23.

The detection sensor 120 changes the inclination angle of the light emitting section LP according to the distance SD from the loading device 110. That is, the inclination angle of the light emitting portion LP is increased as the distance between the detection sensor 120 and the loading device 110 is shorter.

In addition, the detection sensor 120 changes the inclination angle of the light emitting section LP according to the pitch between the light emitting section LP and the light receiving section LR. That is, the larger the distance between the light emitting section LP of the detection sensor 120 and the light receiving section LR, the larger the inclination angle of the light emitting section LP.

For example, if SD2 is 80 to 90mm, it may have values of W, W1, W2, W3, and angles a21 to a26 as shown in fig. 3.

As another example, when SD1 is about 105mm, W1 mm, W2 mm, W3 mm 53mm, a11 about 20 degrees, a12 about 10 degrees, and a13 about 5 degrees may be used.

As another example, when SD3 is about 55mm, W1 mm, W2 mm, W3 mm 53mm, a31 degree about 25 degrees, a32 degree about 15 degrees, and a33 degree about 10 degrees may be used.

Namely, a11, a21, a31 may vary in the range of 20 to 25 degrees depending on the distances SD1, SD2, SD3, a12, a22, a32 may vary in the range of 10 to 15 degrees depending on the distances SD1, SD2, SD3, and a13, a23, a33 may vary in the range of 5 to 10 degrees depending on the distances SD1, SD2, SD 3.

As described above, the detection sensor 120 according to the embodiment of the present invention changes the inclination angle of the light emitting portion LP according to the distance SD between the device 110 and the light receiving portion LR or the distance between the light emitting portion LP and the light receiving portion LR, thereby allowing a detection area to be enlarged while performing more accurate detection.

Fig. 19 shows a relationship between an input or output signal and the number of pixels of the image sensor. The vertical direction may represent input or output (Power, W), and the horizontal direction may represent the Number of pixels (Pixel Number). The effect of the reflection type image detection sensor 120 shown in fig. 15 can be observed in the form of a quantitative graph in fig. 19.

As shown in fig. 20, the reflection type image detection sensor 120 may include a flexible wire CA. Fig. 20 (a) shows an oblique view of the cord CA, and fig. 20 (b) shows the second face CA2 of the cord CA.

The cord CA may include a first face CA1 having a width and a length and a second face CA2 spaced apart from the first face CA 1.

The tip of the flexible cord CA is electrically connected to the PCB of the detection sensor 120 that can integrally control the detection sensor 120 or to the main control part 130.

At least one or more module PCBs may be disposed between the end of the flexible wiring CA and the PCB of the detection sensor 120 and between the end of the flexible wiring CA and the main control part 130.

At least one wire can be provided between the first surface CA1 and the second surface CA2 of the flexible cord CA with a highly conductive substance. The first and second faces CA1 and CA2 of the flexible electric wire CA may include an insulating substance a that can insulate the electric wire. A first side CA1 and a second side CA2 of the cord CA may be disposed around the cord.

The second face CA2 of the cord CA may include an opening face b that may open the cord to the outside. The opening b may have substantially the same width and a certain length as the flexible electric wire CA. The opening b may be provided in plurality on the second side CA2 of the cord CA. The plurality of opening portions b may maintain a certain pitch arrangement.

The opening b may bend the central region in combination with the plurality of light emitting portions LP or light receiving portions LR. The detailed description will be made in conjunction with fig. 21 to 23.

Fig. 21 shows a state before the flexible electric wire CA is bent. The second side CA2 of the flexible cord CA may be provided with the side b at a certain interval. The opening part b may open at least one or more electric wires to the outside.

The plurality of light emitting portions LP may be provided at intervals on the second surface CA2 of the cord CA. Fig. 21 is mainly directed to one light-emitting unit LP.

Fig. 22 shows a process of bending the flexible electric wire CA and inserting the light emitting part LP. The opening side b of the flexible electric wire CA may be folded or bent centering on the center line of the intermediate area of the one side end and the other side end. Namely, the opening aspect b can be folded into a V-shaped or an inverted V-shaped shape. The opening b is inserted into the inside of the light emitting part LP in a V-shaped or inverted V-shaped shape.

As shown in fig. 23, the flexible electric wires CA are bent and inserted into the light emitting portion LP for connection. The bent opening surface b is inserted into the light emitting part LP and coupled, so that the flexible wire CA and the light emitting part LP are electrically connected.

As described above, the flexible wiring CA inserts the open surface b of the curved second surface CA2 into the light emitting part LP, thereby being easily coupled to or separated from the light emitting part LP or the light receiving part LR.

In addition, the flexible wiring CA inserts the opening surface b of the curved second surface CA2 into the light emitting part LP, so that the process of combining the flexible wiring CA and the light emitting part LP can be simplified. For example, soldering, which is one of the processes of bonding the flexible electric wires CA and the light emitting portion LP, may be removed.

In addition, since the bonding between the flexible electric wires CA and the light emitting portion LP can be visually observed, the defective rate of the product can be reduced and the inspection time of the product can be further shortened.

As shown in fig. 24, the plurality of light emitting portions LP may be provided at regular intervals on the second surface CA2 of the cord CA.

The opening surfaces b (see fig. 23) of the plurality of flexible wires CA are respectively folded and inserted into the lower ends of the plurality of light emitting portions LP. The plurality of light emitting sections LP can be sequentially combined at the opening side b of the lower end insertion cord CA.

The plurality of light emitting parts LP may include first to sixth light emitting parts LP. The first to sixth light emitting portions LP are coupled to the opening side b of the flexible electric wire CA and may be spaced at substantially the same interval. For example, the distance D1 between the second light emitting part LP and the third light emitting part LP is substantially the same as the distance D2 between the third light emitting part LP and the fourth light emitting part LP.

As shown in fig. 25, the first to third light emitting parts LP1 to LP3 are coupled to the opening side b of the cord CA (see fig. 23) and may be spaced at substantially the same interval. Module fixing portions CV1 and CV2 may be provided between the first light emitting portion LP1 and the third light emitting portion LP 3.

The module securing parts CV may comprise a first module securing part CV1 and a second module securing part CV 2. The first module fixing portion CV1 may be disposed between the first light emitting portion LP1 and the second light emitting portion LP 2. The second module fixing portion CV2 may be provided between the second light-emitting portion LP2 and the third light-emitting portion LP 3.

The first module fixing part CV1 is coupled to one side of the first light emitting part LP1 and the other side of the second light emitting part LP2 to fix the first light emitting part LP1 and the second light emitting part LP2 while maintaining a distance therebetween. The second module fixing portion CV2 is coupled to one side of the second light emitting portion LP2 and the other side of the third light emitting portion LP3 to fix the second light emitting portion LP2 and the third light emitting portion LP3 while maintaining the distance therebetween.

The first and second module fixing portions CV1 and CV2 may have a width smaller than the width of the light emitting portion LP, and may have a width substantially equal to or larger than the width of the flexible electric cord CA.

The first module fixing portion CV1 and the second module fixing portion CV2 are provided along the longitudinal direction of the electric wire CA and have different lengths from each other. For example, the first module securing part CV1 may have a length less than that of the second module securing part CV 2. Therefore, the interval between the first light-emitting portion LP1 and the second light-emitting portion LP2 can be smaller than the interval between the second light-emitting portion LP2 and the third light-emitting portion LP 3.

Fig. 26 illustrates a part of the light-emitting section LP in the reflection type image detection sensor 120 configured by the first Set1 and the second Set2 as shown in fig. 12.

As shown in fig. 26, the fourteenth light emitting part LP14, the fifteenth light emitting part LP15, the twenty-first light emitting part LP21, and the sixteenth light emitting part LP16 are coupled to the opening side b of the cord CA and spaced at different intervals.

The first module fixing portion CV1 may be provided between the fourteenth light emitting portion LP14 and the fifteenth light emitting portion LP15, the second module fixing portion CV2 may be provided between the fifteenth light emitting portion LP15 and the twenty-first light emitting portion LP21, and the third module fixing portion CV3 may be provided between the twenty-first light emitting portion LP21 and the sixteenth light emitting portion LP 16.

The first module securing portion CV1 may have a length greater than that of the second module securing portion CV2, and the second module securing portion CV2 may have a length greater than that of the third module securing portion CV 3.

The plurality of light emitting parts LP are coupled to the opening surfaces b of the flexible wires CA at a certain interval, and the interval between the light emitting parts LP can be changed by the module fixing part CV. The above configuration can be easily applied to various products.

The foregoing description of certain embodiments or other embodiments of the invention is not intended to be exhaustive or to limit the invention to the precise form disclosed. The various structures or functions of some of the above-described embodiments or other embodiments of the present invention may be used in combination or otherwise combined.

The foregoing detailed description is not to be taken in a limiting sense, but is made exemplary in all aspects. The scope of the invention should be determined by reasonable interpretation of the appended claims and all changes which come within the equivalent scope of the invention are intended to be embraced therein.

Claims

1. A reflection type image detection sensor comprising:

a housing extending along a first direction;

a light receiving unit provided in the housing;

a plurality of light emitting sections provided on the housing along the first direction of the housing; and

a plurality of installation parts for installing the plurality of light emitting parts,

the plurality of installation sections include:

a first set of installation parts arranged adjacent to one side of the light receiving part; and

a second set of installation parts which are arranged adjacent to the other side of the light receiving part and are symmetrical with the first set of installation parts by taking the light receiving part as a center,

the plurality of light emitting sections include:

a first group light emitting unit installed in the first group installation unit; and

a second group light emitting unit installed in the second group installation unit,

the light receiving unit includes a light receiving shaft extending from the housing to the outside of the housing,

the plurality of light emitting units include a plurality of light emitting axes each intersecting the light receiving axis,

the center point of the light-emitting section of the first group of light-emitting sections and the center point of the light-emitting section of the second group of light-emitting sections are located on the same line along the first direction,

the center point of the light receiving part is deviated from the same line.

2. The reflective image detection sensor according to claim 1, wherein:

the first group light emitting unit includes:

a first light emitting section; and

and a second light emitting unit located between the first light emitting unit and the light receiving unit.

3. The reflective image detection sensor according to claim 2, wherein: the distance between the first light-emitting portion and the second light-emitting portion is larger than the distance between the light-receiving portion and the second light-emitting portion.

4. The reflective image detection sensor according to claim 2, wherein:

the first light emitting unit has a first light emitting axis;

the second light emitting unit includes a second light emitting axis;

an angle formed by the first light-emitting axis and the light-receiving axis is larger than an angle formed by the second light-emitting axis and the light-receiving axis.

5. The reflective image detection sensor according to claim 1, wherein: the light receiving axis of the light receiving unit forms a predetermined angle with a second direction perpendicular to the first direction of the housing.

6. The reflective image detection sensor according to claim 1, wherein:

the light receiving unit includes:

an image sensor located on the light receiving axis;

a slit formed on the light receiving axis; and

and a lens located between the image sensor and the slit.

7. The reflective image detection sensor according to claim 6, wherein:

the light receiving unit includes a filter between the lens and the image sensor.

8. The reflective image detection sensor according to claim 6, wherein:

the housing includes a partition wall formed around the slit.

9. The reflective image detection sensor according to claim 8, wherein:

the partition wall protrudes in front of the light receiving unit and surrounds the slit.

10. The reflective image detection sensor according to claim 8, wherein:

the partition wall includes:

a first portion spaced apart from the slit, extending in a longitudinal direction of the slit, and located above the slit;

a second part which is separated from the slit, extends along the length direction of the slit and is positioned at the lower part of the slit; and

a third portion extending from one end of the first portion to one end of the second portion;

the distance from the slit to the first portion or the second portion is smaller than the distance from the slit to the third portion.

11. The reflective image detection sensor according to claim 1, wherein:

the light emitting section includes:

a light emitting element located on the light emitting axis;

a lens located on the light emitting axis; and

and a slit formed between the light emitting element and the lens.

12. The reflective image detection sensor according to claim 1, wherein:

includes a first light receiving part provided in the housing;

a second light receiving part spaced apart from the first light receiving part;

a plurality of light emitting portions provided in order from the first light receiving portion to the second light receiving portion;

at least one of the plurality of light emitting portions includes a light emitting axis intersecting with a light receiving axis of the first light receiving portion;

at least another one of the plurality of light emitting portions has a light emitting axis intersecting with a light receiving axis of the second light receiving portion.

13. The reflective image detection sensor according to claim 12, wherein: at least one of the plurality of light-emitting portions having a light-emitting axis intersecting the light-receiving axis of the first light-receiving unit is closer to the second light-receiving unit than at least another one of the plurality of light-emitting portions having a light-emitting axis intersecting the light-receiving axis of the second light-receiving unit.

14. The reflective image detection sensor according to claim 1, wherein:

one of the first set of mounting portions has a different inclination than the other of the first set of mounting portions.

15. The reflective image detection sensor according to claim 1, wherein: the distance between each installation portion of the first set of installation portions is different.