TW202210893A - Entrance sensor having adjustable light field and high-efficiency emission - Google Patents

Abstract

An entrance sensor having adjustable light field and high-efficiency emission includes a light field modulation circuit. The light field modulation circuit includes a light field switch, which can enable an electronic switch element to turn on or off individual light emitting units in a light emitting unit. The light emitting units can individually emit light to emitting convex lens sheet, and individually light radiates different angles of light fields to the front of an entrance sensor door basing on the optical principle. Therefore, the light field switch can flexibly adjust the width and breadth of the light fields to the front of the entrance sensor door. In addition, a light receiving unit and the spaced light emitting unit can be disposed in the same direction, and the light reflected by the light field in a pass range is focused to a light receiving unit of the light receiving unit through a light receiving convex lens set, and the light receiving unit can convert the reflected light into a photoelectric signal, and then a signal processing system outputs a control signal that can be automatically switched on and off the switch. The light emitting units emits to a lens center of the emitting convex lens sheet with individual optical axes at different angles. The emitted light will be uniformly radiated and covered on the emitting convex lens sheet. The emitted light and the emitting convex lens sheet are close to the optical coaxial relationship, so the emitted light can be projected to the light fields to the front of the entrance sensor door.

Description

Tunable light field range and transit sensor with high-efficiency emission

related applications

The present invention claims the domestic priority of Taiwan Patent Application No. 109130593 (application date: September 07, 2020), and the complete content of the application is incorporated as a part of the patent specification of the present invention for reference.

The present invention relates to a passage sensor, in particular to a passage sensor with adjustable light field range and high-efficiency emission.

Automatic access doors are generally used in some occasions that require frequent access by people or vehicles (such as warehouses, passage compartments, banks, shopping malls, or company bank numbers, etc.). When someone or a vehicle needs to enter or leave, the motor can be driven to open the automatic rolling door or the automatic door. However, in the existing infrared light passing sensors, the projected light field range of the infrared light emitted by them is mostly fixed, and cannot be flexibly adjusted and changed according to the different passing range of the installation site, and there are often different passing ranges. It is necessary to replace sensors with different projection light field ranges, which causes inconvenience in use. Infrared light passing sensors used in automatic up and down rolling doors have the same problem. In addition, when the light emitted by the existing light sensor is projected on the convex lens, it cannot effectively ensure that the optical axis of the light projected by the LED is projected to the mirror center of the convex lens, so the light emitted by the LED cannot be uniformly covered on the convex lens lens, so that the projection The light field energy reaching the sensing range is not uniform, which indirectly causes the light intensity reflected back to the sensor to be non-uniform within the light field range.

In order to solve the above technical problems, the present invention provides a pass sensor with adjustable light field range and high-efficiency emission to control the opening or closing of an automatic pass door, the pass sensor comprising: at least one light field A modulation circuit, the light field modulation circuit includes a plurality of light field switches, a plurality of electronic switching elements; and a sensing lens, the sensing lens includes a light emitting unit, the light emitting unit includes a plurality of light emitting units and an emission convex lens sheet, and adjacently includes at least one light receiving unit, the light receiving unit includes a light receiving convex lens sheet composed of a plurality of light receiving units and a plurality of convex lenses; wherein the light fields in the light field modulation circuit The field switch can make a plurality of the electronic switching elements individually modulate the opening or closing of the plurality of the light emitting units in the light emitting unit, and project light rays of different angles to the emitting convex lens sheet. The light field range required for the light to radiate to the automatic pass door. The light field within the pass range will reflect the light to the light-receiving convex lens sheet in the light-receiving unit due to the intervention of foreign objects. The light is focused on the light according to the optical principle. A receiving unit, the light receiving unit can convert the reflected light into a photoelectric signal, and outputs a control signal capable of automatic switching through a photoelectric signal processing system.

The beneficial effect of the present invention is that the adjustable light field range and the pass sensor with high-efficiency emission provided by the present invention include a light field modulation circuit. The light field modulation circuit is electrically connected with the light emitting module in the sensing lens, so that the light emission of the light emitting unit can be individually controlled through the light field switch. In addition, the emission range of the pass sensor is adjustable, so that the pass light field range can be adjusted according to the needs of the automatic pass door on-site, which can facilitate flexible adjustment and use during installation. Furthermore, because the light emitting module is provided with light emitting combined circuit boards with different angles, and the individual light emitting units are coaxially aligned with the emitting convex lens sheet, the emitted light can be efficiently projected individually to the light field range of the automatic pass door.

For a further understanding of the features and technical content of the present invention, please refer to the following detailed descriptions and drawings of the present invention. However, the drawings provided are only for reference and description, and are not intended to limit the present invention.

The following are specific specific examples to illustrate the embodiments disclosed in the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to the actual size, and are stated in advance. The following embodiments will further describe the related technical contents of the present invention in detail, but the disclosed contents are not intended to limit the protection scope of the present invention. In addition, the term "or", as used herein, should include any one or a combination of more of the associated listed items, as the case may be.

Please refer to FIG. 1 to FIG. 6 , the present invention provides a passage sensor with adjustable light field range and high-efficiency emission. The passage sensor 10 is arranged above the automatic passage door (as shown in FIGS. 10 to 13 ). shown), the automatic access door may be an automatic door 11 or an automatic rolling door 12, but not limited thereto. The passing sensor 10 is used to sense the entry and exit of people and objects, and then control the opening and closing of the automatic door 11 or the automatic rolling door 12 . The passing sensor 10 includes a light field modulation circuit 710 ( FIG. 7 and FIG. 9 ) and a sensing lens 08 . The sensing lens 08 includes a light emitting unit 05, the light emitting unit 05 includes a plurality of light emitting units 111 and a emitting convex lens sheet 510, and adjacently includes at least one light receiving unit, and the light receiving unit includes a plurality of light receiving units 111 and a light-receiving convex lens sheet composed of a plurality of convex lenses. The emitting convex lens sheet 510 includes an emitting convex lens 501 , and the light emitting units 111 project a light emitting optical axis. A plurality of light emitting units 111 are disposed on a photoelectric signal conversion carrier 03 . As shown in FIG. 7 and FIG. 9 , the light field modulation circuit 710 includes a plurality of light field switches 701 and a plurality of electronic switching elements 702 . The light field switches 701 are exposed through a light field switch hole 903 . The light-receiving unit includes a light-receiving convex lens sheet, the light-receiving convex lens sheet includes a near-receiving convex lens sheet 410 , a wide-receiving convex lens sheet 610 , and the wide-receiving convex lens sheet 610 includes a wide-receiving convex lens group 601 . The light receiving unit includes a wide light receiving unit 301 and a near light receiving unit 302 . The light-broadband receiving unit 301 is electrically disposed on the photoelectric signal conversion carrier 03 .

The light emitting units 111 can be used to emit light. In this embodiment, the light emitting units 111 can be infrared LED emitters, which can be used to emit infrared rays, but not limited thereto. There are a plurality of the light emitting units 111, and the light emitting units 111 are arranged in an array, but not limited thereto. The light emitting units 111 are arranged in at least one row to form a near-receiving sensor, and the light emitting units 111 can also be arranged in two, three or four rows to form a wide-receiving sensor. . When there is only one row of the light emitting units 111, the row includes a plurality of light emitting units 111, and when the light emitting units 111 are in two or more rows, each row has at least one light emitting unit 111, and each row may also include One, two, three or more light emitting units 111 . In this embodiment, the light emitting units 111 can be electrically disposed on the photoelectric signal conversion carrier 03 , and the photoelectric signal conversion carrier 03 can be a circuit board, and the light emitting units 111 pass through the circuit through the photoelectric signal conversion carrier 03 Or the connecting conductor 121 is electrically connected to the light field modulation circuit 710, but it is not limited. The light field switch 701 individually controls the electronic switch element 702 to enable the electronic switch element 702 to selectively turn on or off the light emitting units 111 to project light emitting optical axes J1 of different angles, and the light emitting optical axes J1 can be infrared rays. but not limited. The electronic switching element 702 in the light field modulation circuit 710 can select different modes of on and off to form light field passing ranges of various depths and widths (as shown in Figure 8 Type1 to Type12). The opening and closing of the circuit 710 can be controlled by means of existing electronic technology or mechanical switches. Since the switching method is the existing technology, it will not be described and limited.

The sensing lens 08 may include a near-light receiving unit 04 , a light-emitting unit 05 , and a wide-light receiving unit 06 . The optical near receiving unit 04 can simultaneously include a near receiving convex lens sheet 410, a plurality of optical near receiving units 302, a plurality of visible light emitting units 211 and a visible light emitting convex lens group 402; the light transmitting unit 05 includes a transmitting convex lens sheet 510 and a plurality of The light emitting unit 111; the light wide receiving unit 06 includes a wide receiving convex lens sheet 610 and a plurality of light wide receiving units 301, and the light near receiving unit 04 and the light wide receiving unit 06 form a light receiving unit. The light receiving unit and the light emitting unit 111 may be disposed in the photoelectric signal conversion carrier 03, but are not limited.

When the light field projection range G (as shown in FIG. 10 ) in the passing range is reflected to the wide-receiving convex lens group 601 due to the intervention of foreign objects, the light is focused on the light-receiving unit 301 in the sensing lens 08 according to the optical principle and converted into a photoelectric signal, The control signal that can be automatically turned on or off is output through the photoelectric signal processing system.

The sensing lens 08 includes a light emitting module 01 . The light emitting module 01 includes a emitting carrier 120 and a light emitting carrier 110 . The emitting carrier 120 includes a connecting conductor 121 , a emitting seat body 122 , a body mounting surface 123 and at least one positioning post 124 . The mounting surface 123 of the seat body can be set in various different angles and face the mirror center of the emitting convex lens 501 individually. The light emitting carrier 110 includes a plurality of light emitting units 111 , a light emitting composite circuit board 112 , a V-shaped groove 113 and a light emitting composite circuit board mounting surface 114 . The plurality of light emitting units 111 are electrically disposed on the front surfaces of the plurality of light emitting composite circuit boards 112 at different angles, and the back surface of the light emitting composite circuit board 112 is a light emitting composite circuit board mounting surface 114 . The light emitting combined circuit board and the mirror base mounting surface 123 facing the emitting convex lens at different angles and the light emitting combined circuit board mounting surface 114 are respectively combined at the same angle to form a light emitting module 01 . The light emitting optical axis J1 of the individual light emitting unit 111 is projected to the mirror center of the emitting convex lens 501, and the light will be uniformly radiated and covered on the emitting convex lens 501. Since the two are close to the optical coaxial relationship, the emitted light can be efficiently Projection range G of the light field projected to the automatic pass door individually (see Figure 10).

The light emitting composite circuit boards 112 can be a plurality of individual circuit boards and are electrically connected to each other, or the light emitting composite circuit board 112 can be an integral structure, and the back of the light emitting composite circuit board 112 corresponds to a plurality of independent individuals The same position of the circuit board has a plurality of cut V-shaped grooves 113, the V-shaped grooves 113 make the overall structure light emitting combination circuit board 112 and the light emitting combination circuit board 112 of a single independent group and the same position to be broken and electrically connected. link.

The light near receiving unit 04, the light transmitting unit 05, and the light wide receiving unit 06 emit and receive light in the same direction, and are separated and connected to each other to form a wide and near-integrated sensing lens 08. The light field projection range of light emission is G The reflected light forms a near-receiving optical axis H1 (that is, a near-receiving light) and a wide-receiving optical axis I1 (that is, a wide-receiving light), wherein the light emitting unit 05 and the near receiving unit 04 and the light wide receiving unit 06 generate light The corresponding relationship between transmission and reception, the sensing lens 08 can individually receive the wide receiving optical axis I1, the near receiving optical axis H1, the wide receiving optical axis I1, and the near receiving optical axis H1 individually processed by a photoelectric signal processing system and then control the automatic door 11 on or off (as shown in Figure 11).

The light emitting unit 05 and the light receiving unit 06 can emit and receive light in the same direction and are separated and connected to each other to form a sensing lens 08, wherein the light emitting unit 05 and the light receiving unit 06 generate a corresponding relationship between light emission and reception , the sensing lens 08 will be able to receive light with a wide receiving light axis I1 (as shown in FIG. 11 ), which is processed by the photoelectric signal processing system, and then control the opening or closing operation of the automatic door 11 and the automatic rolling door 12 (as shown in the figure). 12, as shown in Figure 15).

The light emitting unit 05 and the near-light receiving unit 04, both of which can emit and receive light in the same direction and are separated and connected to each other, form a sensing lens 08, wherein the light-emitting unit 05 and the near-light receiving unit 04 generate a corresponding relationship between emission and reception , the sensing lens 08 will receive light close to the receiving optical axis H1 near the receiving reflection range H and then process it through the photoelectric signal processing system and then control the opening or closing operation of the automatic door 11 (as shown in FIG. 13 ).

The adjustable light field range and the pass sensor with high-efficiency emission are installed above the side of the automatic pass door to open the door, wherein the light emission unit 05 and the light receiving unit 04 can emit and receive light in the same direction and mutually communicate with each other. Separate and connect to form a sensing lens 08, wherein the light emitting unit 05 and the light near receiving unit 04 generate a corresponding relationship of emission and receiving, and the light near receiving unit 04 is used to receive the side receiving light axis of the safe operation range of the side of the automatic pass door Hs1 (as shown in Figure 14), when the automatic passage door is opened and operated, if there is a foreign object close to the light receiving reflection range Hs on the side of the automatic passage door, the side receiving optical axis Hs1 of the optical receiving unit 04 is processed by the photoelectric signal processing system and then Control the automatic passage door to stop or decelerate immediately when the door is opened, so as to maintain the safe operation of the automatic passage door when the side door is opened.

The sensing lens 08 can also include at least one visible light emitting convex lens group 402 and a plurality of visible light emitting units 211. The visible light emitting unit 211 and the visible light emitting convex lens group 402 project the light of the visible light emitting optical axis K1 according to the optical principle (as shown in FIG. The visible light range K of the operating range of the front edge of the access door (as shown in Figure 11, Figure 12, Figure 13, Figure 14, Figure 15), wherein the visible light emitting unit 211 can be a visible light LED or a visible light laser, but it is not limited.

The emitting convex lens 501 can meet the requirements of geometric optics, and is disposed in front of the light emitting unit 111 .

The light emitted by the light emitting unit 111 correspondingly passes through the emitting convex lens 501, and is projected to the entrance of the automatic pass gate (as shown in FIG. Please refer to FIG. 7 to reveal the circuit diagram (1) of the three-row light emitting unit 111 and the light field modulation circuit 710. The light field switch 701 in the light field modulation circuit 710 has various switching combinations, and can generate the light field as shown in FIG. 8 The light field variation of various projections of Type1 to Type12 in the light field range modulation diagram shown.

FIG. 7 discloses that the light emitting unit 111 is correspondingly connected to the light field switch 701 via the electronic switch element 702 and can be individually selected to be turned on or off to determine the passing range of the projected light field. Please refer to FIG. 9 to reveal the circuit diagram (2) of the three-row light emitting unit 111 and the light field modulation circuit 710 . The processor unit 703 is used to control the light emitting units 111 to be turned on or off individually, so as to determine the light field projection range G of the projected light field. For example, the light field switch 701 is used to control the programmable microprocessor unit 703 and the light field projection range of Type 1 to Type 12 shown in the light field range modulation diagram shown in FIG. 8 is displayed through the light field display 704. The programmable microprocessor unit 703 enables the electronic switching element 702 to synchronously drive the light emitting unit 111 to determine the range of the light field to pass.

As shown in Figures 5 and 10, the upper left LED projection light field LF-u-1 refers to the light field projected by the upper left optical axis u-1, and the left middle LED projection light field LF-m-1 refers to the projection light field projected by the left middle optical axis m-1. Light field, the lower left LED projection light field LF-d-1 refers to the light field projected by the lower left optical axis d-1. The middle and upper LED projection light field LF-u-c refers to the light field projected by the middle and upper optical axis u-c, the middle LED projection light field LF-m-c refers to the light field projected by the middle optical axis m-c, and the middle and lower LED projection light field LF-d-c is Refers to the light field projected by the middle and lower optical axes d-c. The upper right LED projection light field LF-u-r refers to the light field projected by the upper right optical axis u-r, the right middle LED projection light field LF-m-r refers to the light field projected by the right middle optical axis m-r, and the lower right LED projection light field LF-d-r is Refers to the light field projected by the lower right optical axis d-r, where u represents up, m represents middle, d represents down, l represents left, c represents center, and r represents right.

As shown in FIG. 2 to FIG. 6 , the light receiving unit is disposed on the photoelectric signal conversion carrier 03, and the light wide receiver unit 301 and the light close receiving unit 302 are disposed on the photoelectric signal conversion carrier 03, and the photoelectric signal conversion carrier 03 can be a circuit board, And the optical wide receiver unit 301 and the optical near receiver unit 302 can be electrically disposed on the photoelectric signal conversion carrier 03 . The wide-optical receiving unit 301 and the near-optical receiving unit 302 are not limitedly arranged at the space between the two sides of the light-emitting unit 111, and the spaced positions can be intermodulated under the condition of the mechanism design requirements. The above-mentioned drawings and descriptions are only for reference. , not intended to limit the present invention.

One or two light-receiving convex lens sheets may be provided. The wide-receiving convex lens sheet 610 includes a wide-receiving convex lens group 601 , and the near-receiving convex lens sheet 410 includes a near-receiving convex lens group 401 . The receiving convex lens groups (the near receiving convex lens group 401 and the wide receiving convex lens group 601 ) are respectively focused on the near light receiving unit 302 and the light wide receiving unit 301 according to the requirements of geometric optics. The light emitted by the light emitting units 111 is projected to the emitting convex lens 501 according to the requirements of geometric optics, and is projected at the doorway according to the optical axes of different angles to form a passable light field range. The light reflected in the light field range can The light is focused on the wide light receiving unit 301 and the near light receiving unit 302 through the wide receiving convex lens group 601 and the near receiving convex lens group 401, respectively. A visible light emitting convex lens group 402 may be further disposed on the near-receiving convex lens sheet 410 .

In this embodiment, as shown in FIG. 1 , the traffic sensor 10 may further include a casing 09 , a sensing lens 08 and a sensing signal processing carrier 07 . The casing 09 includes a bottom casing 901 , an upper casing 902 and A light field switch hole 903 may also include a housing 905 and a filter lens 904 . The sensing signal processing carrier 07 can be provided with a light field switch 701 . The light field switch 701 forms a modular design in the housing 09 corresponding to the position of the light field switch hole 903 and exposes a range for modulating the passing light field.

The present invention provides a pass sensor with adjustable light field range and high-efficiency emission. The pass sensor 10 is arranged at the entrance of the automatic pass door, and the light field switch 701 can be mobilized through the light field switch hole 903, thereby The range of the light field projected by the light emitting unit 111 is modulated. If a foreign object enters the range of the light field, the energy of the light field will be changed, and then the automatic pass door can be opened through the control loop.

As shown in FIG. 4 , the visible light emitting module 02 includes a visible light emitting carrier 210 and a visible light bearing base 220 . The visible light emitting carrier 210 includes a plurality of visible light emitting units 211 and a plurality of visible light combined circuit boards 212 . The visible light emitting units 211 are respectively disposed on the visible light combined circuit boards 212, the visible light emitting units 211 are respectively electrically disposed on the front of the visible light combined circuit board 212, and the visible light emitting units 211 can be electrically installed on the visible light emitting units 211 respectively. Visible light combination circuit board 212 . The visible light bearing seat 220 has a plurality of visible light connecting conductors 221 and a visible light seat body 222 . The visible light seat body 222 is provided with a plurality of visible light seat body mounting surfaces 223 . Correspondingly, the visible light combined circuit board 212 is properly fixed on the visible light base mounting surfaces 223 , and the visible light emitting units 211 can be electrically mounted on the visible light combined circuit boards 212 and disposed on the visible light bearing base 220 respectively. The optical axis of the light emitted by the visible light emitting unit 211 is opposite to the mirror center of the visible light emitting convex lens group 402, so the angle of the projected visible light can be uniformly covered on the visible light emitting convex lens group 402. The visible light emission optical axis K1 (as shown in FIG. 5 ) can efficiently project a visible light range K (as shown in FIGS. 11 , 12 , 13 , 14 , and 15 ) near the front edge of the automatic passage door.

The visible light combined circuit boards 212 can be a plurality of independent circuit boards and are electrically connected to each other, or the visible light combined circuit boards 212 can be an integral structure, and the back of the visible light combined circuit board 212 corresponds to a plurality of independent individual circuit boards There are a plurality of cut V-shaped grooves 113 in the same position, the V-shaped grooves 113 make the visible light combined circuit board 212 of the overall structure and the visible light combined circuit board 212 of a single independent group and the same position to be broken and electrically connected.

Referring to FIG. 4 , in this embodiment, the light emitting units 111 are arranged in three columns, upper, middle and lower, each column has three light emitting units 111 , and the three light emitting units 111 arranged in the upper column emit light in the upper right The optical axis u-r, the upper middle optical axis u-c, and the upper left optical axis u-l, the three light emitting units 111 arranged in the middle row emit the optical axis right middle m-r, the middle optical axis m-c, and the left middle optical axis m-l, which are arranged in the following three The light emitting unit 111 emits the lower right optical axis d-r, the lower middle optical axis d-c, the lower left optical axis d-1, the upper right optical axis u-r, the upper middle optical axis u-c, the upper left optical axis u-l, the middle right optical axis m-r, the central optical axis m-c, the left The middle optical axis m-1, the lower right optical axis d-r, the lower middle optical axis d-c and the lower left optical axis d-1 form an optical coaxial relationship with the emission convex lens 501, so the light emitted by these light emission units 111 will be uniformly projected to cover the emission on the lens of the convex lens 501. All the light emitting units 111 in the light emitting module 01 are coaxially corresponding to the range of the passing induction light field formed by the projection and combination of the emitting convex lens 501 due to the optical principle at different angles.

Referring to FIG. 11 , the pass sensor 10 is installed at the entrance of the automatic pass door, the light field switch 701 selects the projected light field range, and the light emitting unit 111 projects the light field projection range G at a wide and close position in front of the automatic door. The wide light receiving reflection range I and the near light receiving reflection range H are used to receive the reflected light in the whole area of the light field projection range G. Referring to FIG. 12 , the pass sensor 10 is installed at the entrance of the automatic pass door, the light field switch 701 selects the projected light field range, and the light emitting unit 111 projects the light field projection range G in front of the automatic door 11 . The wide light receiving and reflection range I is used to receive the reflected light in the entire range of the light field projection range G.

Please refer to FIG. 13 , the light emitting unit 111 and the visible light emitting unit 211 are projected at the position of the front edge light emission range J and the visible light range K of the automatic door 11, and the close-receiving convex lens group 401 is used to receive the light emission range J close to the front edge of the automatic door 11 The near receiving optical axis H1. If a foreign object enters within the light receiving reflection range H, the energy of the light field will change, and the automatic door 11 can be opened through the control loop.

Please refer to FIG. 14 , the pass sensor 10 is disposed on the side of the automatic door 11 where the light emitting unit 111 and the visible light emitting unit 211 are projected at the front edge of the side of the automatic door 11, at the positions near the emission range J and the visible light range K, The near-receiving convex lens group 401 is used to receive the reflected light near the light emission range J near the front edge of the side of the automatic door 11 and the side-receiving optical axis Hs1. When the automatic door 11 is opened and operated, if a foreign object approaches the side opening operation range of the automatic door 11, the side receiving optical axis Hs1 of the optical proximity receiving unit 04 controls the automatic door 11 to stop or slow down the response immediately through the photoelectric signal processing system, so as to maintain the Safe operation.

Please refer to FIG. 15 , the pass sensor 10 is installed at the door of the automatic rolling door 12 , the light field switch 701 (not shown in FIG. 15 ) selects the projected light field range, and the light emitting unit 111 projects on the front of the automatic rolling door 12 Light field projection range G. The wide light receiving and reflection range I is used to receive the reflected light in the entire range of the light field projection range G.

The visible light emitting unit 211 is correspondingly projected on the visible light emitting convex lens group 402, and then according to the optical principle, the visible light range K is projected at a position close to the front edge of the door, and the visible light field position can correspond to the display light near emission range J and light near receiving reflection range The relative position of H on the front edge of the door.

[Advantageous effects of the embodiment]

The beneficial effect of the present invention is that the adjustable light field range and the passing sensor with high-efficiency emission provided by the present invention include a plurality of light emitting units, at least one emitting convex lens, at least one light receiving unit and at least one receiving convex lens . The light emitting units are provided in a plurality and arranged in an array. The light emitting units are arranged in at least one row, and can also be arranged in multiple rows such as two rows, three rows or four rows. When there is only one row of the light emitting units, the The row includes a plurality of light-emitting units, and when the light-emitting units are in two or more rows, each row has at least one light-emitting unit, and the light-emitting units are electrically connected to the electronic switching element and the light in the light field switch control unit. The field switch is used to control whether the light emitting units project light or not, and the optical axes emitted by these light emitting units are individually close to the optical coaxial with the mirror center of the emitting convex lens, and the projected light angle can be uniformly covered by the aperture on the emitting convex lens. Therefore, the light energy projected by the individual light emitting units at different angles can be uniformly projected to the light field of the sensing range with high efficiency. Moreover, the emission range is in an adjustable state, which can be adjusted flexibly, so that the pass light field range can be adjusted according to the needs of the automatic pass door on-site, which is convenient for flexible adjustment and use during installation.

The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, any equivalent technical changes made by using the contents of the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

01: Light emission module 110: Light Emitting Carrier 111: light emission unit 112: Light emission combination circuit board 113: V-groove 114: Light emission combination circuit board mounting surface 120: Launch carrier 121: Connection conductor 122: Launcher body 123: Seat body mounting surface 124: Positioning post 02: Visible light emission module 210: Visible Light Emitting Carrier 211: Visible light emission unit 212: Visible light combination circuit board 220: Visible light carrier 221: visible light link conductor 222: Visible light base 223: Visible light base mounting surface 03: Photoelectric signal conversion carrier 301: Optical wide receiver unit 302: Optical near receiving unit 04: Optical near receiving unit 410: Near receiving convex lens sheet 401: Near receiving convex lens group 402: Visible light emitting convex lens group 05: Light Emitting Unit 510: Launch convex lens sheet 501: Emission convex lens 06: Optical wide receiver unit 610: wide receiver convex lens 601: Wide receiver convex lens group 07:Induction signal processing carrier 710: Light field modulation circuit 701: Light Field Switch 702: Electronic switching elements 703: Programmable Microprocessor Unit 704: Light Field Display 08: Induction lens 09: Shell 901: Bottom case 902: Upper shell 903: light field switch hole 904: filter lens 905: Shell 10: Passing sensor 11: Automatic door 12: Automatic rolling door G: Light field projection range H: light near receiving reflection range H1: Near the receiving optical axis Hs: Side light receiving reflection range Hs1: side receiving optical axis I: Wide light receiving and reflection range I1: wide receiver optical axis J: light near emission range J1: light emission optical axis K: visible light range K1: visible light emission optical axis LF-u-l: Top left LED projected light field LF-m-l: Left middle LED projected light field LF-d-l: Lower left LED projected light field LF-u-c: Middle and upper LED projection light field LF-m-c: Centered LED Projection Light Field LF-d-c: Middle and lower LED projection light field LF-u-r: Top right LED projected light field LF-m-r: Right middle LED projected light field LF-d-r: lower right LED projected light field u-r: upper right LED optical axis u-c: Middle and upper LED optical axis u-l: upper left LED optical axis m-r: Right middle LED optical axis m-c: Center LED optical axis m-l: Left middle LED optical axis d-r: lower right LED optical axis d-c: middle and lower LED optical axis d-l: lower left LED optical axis

FIG. 1 is an exploded perspective view of the sensing lens and the casing of the present invention.

FIG. 2 is a schematic diagram of the relative positions of the light emitting unit and the light receiving unit inside the sensing lens of the present invention.

3 is a schematic diagram of the relative positions of the light emitting unit and the light receiving unit inside the high-efficiency sensing lens of the present invention.

4 is an exploded view of the light emitting module and the visible light emitting module inside the high-efficiency sensing lens of the present invention.

FIG. 5 is a schematic diagram of the high-efficiency light emitting unit of the present invention, which is a schematic diagram of individual focusing and emitting convex lens mirror centers to generate individual optical coaxial lines.

FIG. 6 is a schematic diagram illustrating that the light in the high-efficiency light field range of the present invention is reflected to the receiving convex lens group, wherein the optical axis is focused on the light receiving unit.

FIG. 7 is a schematic circuit diagram of the light field modulation circuit (1) controlling the light emitting unit of the present invention.

FIG. 8 is a schematic diagram of the light field switch in the light field modulation circuit (1) of the present invention modulating the light field ranges Type1 to Type12.

9 is a schematic circuit diagram of the light field modulation circuit (2) of the present invention controlling the light emitting unit via the programmable microprocessor unit.

FIG. 10 is a schematic diagram of the range of the light field projected by the light emitting unit of the present invention for individual optical axes and individual radiation rays.

FIG. 11 is a schematic diagram of the reflection optical axis of the light receiving reflection range in the wide light field and the light receiving reflection range in the near light field of the present invention.

FIG. 12 is a schematic diagram of the reflection optical axis of the light receiving and reflecting range in the pass light field of the present invention.

13 is a schematic diagram of the near-received reflection range and visible light range and the near-received optical axis in the light field passing through the front edge of the automatic pass door according to the present invention.

14 is a schematic diagram of the near-received reflection range and visible light range and the side-received optical axis in the side light field of the automatic pass door of the present invention.

15 is a schematic diagram of the light field projection range and light emission optical axis, as well as the light receiving reflection range and the wide receiving light axis of the present invention in the passing range of the automatic rolling door.

04: Optical near receiving unit

05: Light Emitting Unit

06: Optical wide receiver unit

07:Induction signal processing carrier

701: Light Field Switch

08: Induction lens

09: Shell

901: Bottom case

902: Upper shell

903: light field switch hole

904: filter lens

905: Shell

10: Passing sensor

Claims (15)

A pass sensor with adjustable light field range and high-efficiency emission is used to control the opening or closing of an automatic pass door, the pass sensor comprising: at least one light field modulation circuit, the light field modulation circuit includes a plurality of light field switches and a plurality of electronic switching elements; and A sensing lens, the sensing lens includes a light emitting unit, the light emitting unit includes a plurality of light emitting units and a emitting convex lens sheet, and adjacently includes at least one light receiving unit, the light receiving unit includes a plurality of light receiving units and a light-receiving convex lens sheet composed of a plurality of convex lenses; Wherein the light field switches in the light field modulation circuit can make a plurality of the electronic switching elements individually modulate the on or off of a plurality of the light emitting units in the light emitting unit, and project light at different angles to the light emitting unit. The emitting convex lens sheet radiates light to the light field range required by the automatic pass door according to the optical principle, and the light field in the pass range will reflect light to the light field in the light receiving unit due to the intervention of foreign objects. The light-receiving convex lens sheet, the light is focused on the light-receiving unit according to the optical principle, the light-receiving unit can convert the reflected light into a photoelectric signal, and a photoelectric signal processing system outputs a control signal that can be automatically switched. The adjustable light field range and the pass sensor with high-efficiency emission as claimed in claim 1, the light field modulation circuit further comprises at least one programmable microprocessor unit, the light field switches control the variable light field The programmed microprocessor unit can make a plurality of the electronic switching elements individually modulate the on or off of the light emitting units in the light emitting unit. The adjustable light field range and the pass sensor with high-efficiency emission according to claim 1, wherein the light-emitting units are combined into a column, and the column has at least one of the light-emitting units, and the corresponding The light field range required to emit the radiant light from the lenticular lens sheet to the automatic access door. The adjustable light field range and the pass sensor with high-efficiency emission according to claim 1, wherein the light-emitting units are combined into two or more columns, and each column has at least one or more of the light-emitting units , and the required light field range should be emitted from the convex lens sheet to the automatic access door. The adjustable light field range and the passing sensor with high-efficiency emission according to claim 1, wherein the light emitting unit is an infrared emitting LED and the light receiving unit is an infrared receiving LED. The adjustable light field range and the pass sensor with high-efficiency emission according to claim 1, wherein the sensing lens includes a light emission module, and the light emission module includes an emission carrier and a light emission carrier , the launch carrier includes a launch base body, the launch base body is provided with a plurality of base body mounting surfaces of different angles, the light launch carrier includes a light launch combination circuit board and carries a plurality of the light launch units, a plurality of the The light emitting units are respectively electrically arranged on the front side of the light emitting combined circuit board, the light emitting combined circuit boards face the mirror core of the emitting convex lens sheet at different angles, and the back of the light emitting combined circuit board is a light emitting combined circuit Board mounting surface, a plurality of the mounting surfaces of the seat body and the mounting surface of the light-emitting combined circuit board are respectively combined at the same angle to form the light-emitting module, and the optical axis of the individual light-emitting units is projected to the mirror center of the emission convex lens sheet, The light will be uniformly radiated and covered on the emitting convex lens sheet. The adjustable light field range and the pass sensor with high-efficiency emission as claimed in claim 6, wherein the light emission combined circuit board is a plurality of individual circuit boards and is electrically connected to each other, or the light emission The combined circuit board is an integral structure, and the back of the light-emitting combined circuit board has a plurality of cut V-shaped grooves corresponding to the same position of the plurality of independent individual circuit boards, and the V-shaped groove can make the overall light-emitting circuit board and the independent The combined light-emitting combined circuit board is broken and electrically connected at the same position. The adjustable light field range and the passing sensor with high-efficiency emission as claimed in claim 1, wherein the sensing lens comprises at least one visible light emitting convex lens group and at least one visible light emitting unit, the visible light emitting units and the The visible light emitting convex lens group projects visible light according to the optical principle to display the position of the light field in the running range of the front edge of the automatic pass door. The adjustable light field range and the pass sensor with high-efficiency emission according to claim 8, wherein the visible light emitting units are visible light emitting LEDs or visible light lasers, and the light receiving units are visible light receiving units LED. The adjustable light field range and the pass sensor with high-efficiency emission according to claim 8, wherein the sensing lens includes a visible light emission module, and the visible light emission module includes a visible light carrier and a visible light emission carrier , the visible light carrier includes a visible light seat body, the visible light seat body is provided with at least one visible light seat body mounting surface, the visible light emission carrier includes a plurality of visible light combined circuit boards and carries at least one of the visible light emission units, the visible light emission units are respectively It is electrically arranged on the front of the visible light combined circuit board, the back of the visible light combined circuit board is the mounting surface of the visible light seat, and the mounting surface of the visible light seat and the back of the visible light combined circuit board are respectively combined at the same angle to form the visible light In the emission module, the optical axis of the visible light emission unit is projected to the mirror center of the visible light emission convex lens group, and the visible light can be uniformly radiated and covered on the emission convex lens sheet. The adjustable light field range and the pass sensor with high-efficiency emission according to claim 10, wherein the visible light combination circuit boards are a plurality of independent circuit boards and are electrically connected to each other, or the visible light combination circuit boards are The circuit board is an integral structure, and the back of the visible light combined circuit board has a plurality of V-shaped grooves cut at the same position of the circuit board of the independent individual, and the V-shaped groove can make the visible light combined circuit board of the whole visible light and the visible light of the independent individual combined. The combined circuit board is broken and electrically connected at the same location. The adjustable light field range and the passing sensor with high-efficiency emission as claimed in claim 1, wherein the sensing lens includes a near-light receiving unit, the light-emitting unit, and a wide-light receiving unit, and the near-light receiving unit , The light emitting unit and the light wide receiving unit emit and receive light in the same direction, and are separated from each other and connected to form the sensing lens. Receive light, the light field projection range of the light emission will have a corresponding relationship with the light emission and reception of the near-received light and the wide-received light. The light, the near-received light and the wide-received light are individually controlled by the photoelectric signal processing system to open or close the automatic passage door. The adjustable light field range and the passing sensor with high-efficiency emission as claimed in claim 12, wherein the light emitting unit and the light wide receiving unit are separated from each other in the same direction and connected to form the sensing lens, the light The light in the projection range of the emitted light field is reflected to form the wide-received light, and produces a corresponding relationship between light emission and reception with the light in the projection range of the light field, and the sensing lens will be able to receive the reflected light in the wide-received reflection range. The opening or closing operation of the automatic passage door is controlled through the photoelectric signal processing system. The adjustable light field range and the passing sensor with high-efficiency emission according to claim 12, wherein the light emitting unit and the light near-receiving unit are separated from each other in the same direction and connected to form the sensing lens, the The light in the light field projection range of the light emission is reflected to form the near-received light, and the corresponding relationship between light emission and reception is generated with the light in the light field projection range of the light emission. The reflected light controls the opening or closing operation of the automatic passage door through the photoelectric signal processing system. The adjustable light field range and the pass sensor with high-efficiency emission as claimed in claim 12 are installed above the side opening operation of the automatic pass door, wherein both the light emitting unit and the light near-receiving unit are The sensing lens is separated from each other and connected in the same direction, and the light receiving unit is used to receive the reflected light from the light field projection range of the safe operation range on the side of the automatic passage door. When the automatic passage door is opened and operated, if a foreign object approaches The light field projection range of the side opening operation range of the automatic access door, the optical proximity receiving unit will receive the reflected light and then control the safe operation of the automatic access door to stop or decelerate in real time through the photoelectric signal processing system.

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