CN203786343U

CN203786343U - Optical assembly

Info

Publication number: CN203786343U
Application number: CN201420172946.1U
Authority: CN
Inventors: 孙雨舟; 陈龙; 王克武; 李伟龙; 王祥忠
Original assignee: Innolight Technology Suzhou Ltd
Current assignee: Innolight Technology Suzhou Ltd
Priority date: 2014-04-11
Filing date: 2014-04-11
Publication date: 2014-08-20
Anticipated expiration: 2024-04-11

Abstract

The utility model provides an optical assembly, which comprises a substrate and a filtering device, wherein the substrate is of an integral structure formed at one time, the upper surface is provided with a total reflecting surface, and the lower surface is provided with a first groove; the groove bottom of the first groove is provided with a lug and at least one first lens, the filtering device is detachably connected with the lug, and the first lens is arranged between the filtering device and the total reflecting surface; and the substrate is further provided with at least one second lens, the second lens is arranged on the side surface of the substrate, and is opposite to the total reflecting surface. Compared with the prior art, the optical assembly provided by the utility model reduces the distance between a light-emitting device to the filtering device, thus further shortens the transmission path of the light, shortens the distance between the light-emitting device to a photoelectric detection device, reasonably utilizes the integral layout space, makes the size of the light-emitting device smaller, and saves the manufacturing cost.

Description

Optical module

Technical field

The utility model belongs to optical transceiver module technical field, relates in particular to a kind of optical module.

Background technology

Along with scientific and technical development, high-speed transfer signalling technique is widely used, optical interconnection can be in the much wide bandwidth than electricity transmission signal transmission, and use small size, low-power consumption optics structure signal transmission system.Therefore, notice has been invested as the optical interconnection of equipment room signal transmission technology.Accordingly, the optical module that is installed on computing machine, vehicle or optical transceiver module etc. as electronic unit is widely used.

In prior art, the Chinese patent " optical assembly that realization minute beam energy is controlled " that is 201320424531.4 as the patent No. discloses a kind of optical assembly, described optical assembly comprises matrix, comprises and in described groove, be provided with filter by the groove that is opened in body upper surface in described matrix.

Due to the restriction of existing structure, described filter, near substrate top surface setting, only has between the laser instrument of maintenance and back light detector and has after very large spacing, just can make light transmit according to correct path; This kind of installing mechanism, the integral layout space that has increased optical assembly has increased manufacturing cost simultaneously.

Summary of the invention

In order to address the above problem, the utility model provides a kind of optical module, and this optical module rationally utilizes matrix inner space, can make distance between light-emitting device and Electro-Optical Sensor Set more under, and then make the size of described matrix less, save manufacturing cost.

Accordingly, the optical module in the utility model embodiment, described optical module comprises:

Matrix, filter, and the circuit board being connected with described matrix lower surface, described circuit board is provided with light-emitting device and Electro-Optical Sensor Set near described matrix one side; Described matrix is the integral structure of disposal molding, and its upper surface is provided with a fully reflecting surface, and its lower surface offers the first groove;

On the bottom land of described the first groove, be provided with a projection and at least one first lens, described filter is removably connected in described projection, and described first lens is arranged between described filter and described fully reflecting surface;

On described matrix, be also provided with at least one second lens, described the second lens are arranged at the side of described matrix, and relative and described fully reflecting surface setting;

Wherein, the light that described filter is set to that described light-emitting device is launched is divided into the first light beam and the second light beam by a certain percentage, described the first light beam enters towards first lens skidding after described fully reflecting surface reflects completely, and described the second light beam is towards Electro-Optical Sensor Set.

As further improvement of the utility model, described body upper surface is also offered one second groove, and the sidewall of described the second groove is set to fully reflecting surface.

As further improvement of the utility model, the axis of described first lens and described the second lens is mutually vertical.

As further improvement of the utility model, described projection has a dip plane, and a part for described filter connects the dip plane of described projection, and another part of described filter is arranged in the light path of the light that described light-emitting device launches.

As further improvement of the utility model, a part and another part of described filter are formed in one.

As further improvement of the utility model, described first lens is identical with described the second lens numbers.

As further improvement of the utility model, described light-emitting device and described Electro-Optical Sensor Set are contained in the first groove.

As further improvement of the utility model, described matrix one side surface is also offered a three-flute; Described the second lens are arranged at described three-flute bottom land.

As further improvement of the utility model, described filter is at the optical coating near being provided with light-permeable on the surface of described light-emitting device.

As further improvement of the utility model, described light-emitting device comprises a plurality of VCSEL laser arrays, and described Electro-Optical Sensor Set comprises a plurality of MPD back light detector arrays, and described VCSEL laser array is identical with described MPD back light detector array quantity.

As further improvement of the utility model, the quantity of described VCSEL laser array and described first lens is identical.

Compared with prior art, the optical module that the utility model provides, it comprises the matrix being wholely set, and offers the first groove on described matrix, and described filter is detachably connected on to the first bottom land, reduced the distance of light-emitting device to filter, and then shortened the bang path of light, and shortened the distance between light-emitting device and Electro-Optical Sensor Set, rationally utilize integral layout space, can make the size of light-emitting device less, save manufacturing cost; In addition, this structure has been avoided the existence of adhesive glue in light path, has greatly improved the reliability and stability of optical assembly.

Accompanying drawing explanation

The structural representation of the single channel optical module that Fig. 1 provides for the utility model the first embodiment;

Light transfer route schematic diagram in the single channel optical module that Fig. 2 provides for Fig. 1;

The structural representation of the single channel optical module that Fig. 3 provides for the utility model the second embodiment;

Fig. 4 is the plan structure schematic diagram of single channel optical module shown in Fig. 3;

Light transfer route schematic diagram in the single channel optical module that Fig. 5 provides for Fig. 3;

The plan structure schematic diagram of the single channel optical module that Fig. 6 provides for the utility model the 3rd embodiment;

The plan structure schematic diagram of the Multi-channel optical assembly that Fig. 7 provides for the utility model the 4th embodiment.

Embodiment

Below with reference to embodiment shown in the drawings, the utility model is described in detail.But these embodiments do not limit the utility model, the conversion in the structure that those of ordinary skill in the art makes according to these embodiments, method or function is all included in protection domain of the present utility model.

For convenience of description, operator's the viewing angle of take is described in detail as reference direction, and it is upper that it below occurs, under, a left side, the right side is all a kind of with reference to angle.

Accordingly, as shown in Figure 1, the single channel optical assembly structure schematic diagram that Fig. 1 provides for the utility model the first embodiment.

Optical module of the present utility model comprises: matrix 10, and the integral structure that described matrix 10 is disposal molding, its material is high temperature resistance optic polymer, for example: resin; Described matrix 10 upper surfaces are provided with a fully reflecting surface 121, and lower surface offers the first groove 11; On described the first groove 11, a first lens 111 and filter 113 are set, described first lens 111 is arranged between described filter 113 and described fully reflecting surface 121, for the light reflecting from described filter 113 is formed to directional light, incides fully reflecting surface 121; Described filter 113 carries out light splitting and energy distribution for realizing to light beam.

One sidewall slope setting of described matrix 10, to form described fully reflecting surface 121, described fully reflecting surface 121 is for redirecting light beam to turn to, and for example 90 degree turn to.Be understandable that, in the art, can in several ways light beam redirected and be turned to.For example, a completely reflecting mirror is set on the inclined wall of described matrix 10, to form fully reflecting surface 121 on the inclined wall at described matrix 10; In preferred implementation of the present utility model, utilize light in communication process, there is total reflection and a sidewall of described matrix 10 directly formed to fully reflecting surface 121 in its interface that enters into air from described matrix 10.

Accordingly, be also provided with a projection 115 on the bottom land of described the first groove 11, described filter 113 is removably connected in described projection 115.

Preferably, described projection 115 has a dip plane, and described filter 113 is removably connected on the dip plane of described projection 115.

Preferably, described projection 115 is one-body molded with described the first groove 11.

Preferably, described projection 115 is right-angle triangle platform.

Accordingly, on described matrix 10, the opposite side wall surface of relatively described matrix 10 1 inclined walls forms printing opacity mouth 131, and described printing opacity mouth 131 is for holding optical devices (not shown), and described optical devices for example, for sending and/or receiving beam: optical fiber; Accordingly, on another sidewall of described matrix 10, corresponding described printing opacity mouth 131 places also arrange the second lens 133; Described the second lens 133 for parallel light focusing that fully reflecting surface 121 is reflected to printing opacity mouth; Described the second lens 133 are arranged between described fully reflecting surface 121 and described printing opacity mouth 131.

It should be noted that, described printing opacity mouth 131 can directly be arranged on another sidewall of described matrix 10, also can on another sidewall of side surface of described matrix 10, offer a special groove, for holding described printing opacity mouth 131 and the second lens 133; Accordingly, in preferred implementation of the present utility model, on another sidewall of described matrix 10, also offer a three-flute 13, the interior formation printing opacity of described three-flute 13 mouth 131; The bottom land of described three-flute 13 also arranges second lens 133 corresponding with described printing opacity mouth 131, at this, is not described in detail.

It should be noted that a sidewall of the described matrix 10 of foregoing and another relative sidewall are just convenient to explanation in describing, in practical application, as long as can reach above-mentioned technique effect, its position relationship can exchange as required, at this, is not described in detail.

Preferably, the axis of described first lens 111 and described the second lens 133 is mutually vertical, and its quantity is identical, is respectively at least 1.

Accordingly, on the residing side surface of described printing opacity mouth 131, a guide 14 is also set, described guide 14 is for combining described optical module and other parts, certainly, described guide 14 also can be arranged on other positions of described matrix 10, at this, is not described in detail.

In embodiment of the present utility model, described matrix 10 also comprises: with the circuit board 20 that described matrix 10 lower surfaces are connected, described circuit board 20 is provided with light-emitting device 21 and Electro-Optical Sensor Set 23 near described matrix 10 one sides; Described light-emitting device 21 and described Electro-Optical Sensor Set 23 all can be fixed on described circuit board 20 by conducting resinl or insulating gel.

Preferably, described circuit board is PCB circuit board.

Preferably, when described circuit board 20 is connected with described matrix 10, described light-emitting device 21 and described Electro-Optical Sensor Set 23 are in described the first groove 11.

Preferably, described light-emitting device 21 and the below of described Electro-Optical Sensor Set 23 in filter 113.

Preferably, described light-emitting device 21 is VCSEL (Vertical Cavity Surface Emitting Laser) laser array, and described Electro-Optical Sensor Set 23 is MPD (monitor photo detector) back light detector array.

Preferably, described VCSEL laser array is identical with the quantity of MPD back light detector array.

Preferably, in single pass optical module, the quantity of described VCSEL laser array and described MPD back light detector battle array is 1.

Accordingly, in preferred implementation of the present utility model, described filter 113 comprises upper surface, and described upper surface and described projection 115 removably connect; For example: described filter 113 removably connects by gluing with described projection 115; Described filter 113 also comprises the lower surface relative with its upper surface, and the lower surface of described filter 113 is arranged at the one side near described light-emitting device 21.

Preferably, on the lower surface of described filter 113, be formed with optical coating, the material that described optically coated material is light-permeable, for example: glass.Accordingly, described optical coating can convert the demand of light allocation proportion according to user, for example: requiring, through being formed with the light of optically coated filter 113, wherein has 10% beche-de-mer without spike and reflection, 90% beche-de-mer without spike and refraction; Or 5% beche-de-mer without spike and reflection, 95% beche-de-mer without spike and refraction etc., or according to other ratio, the light that installs after filtering 113 is distributed, realize according to this splitting ratio of described optical module is controlled, at this, do not do too much and repeat.

Compared with prior art, on described filter 113, form optical coating, and described filter 113 removably connects with described projection 115, can be according to user's demand, the filter 113 by replacing with different optical plated film, makes described matrix 10 splitting ratio in transmitting photoreduction process controlled.

Accordingly, described filter 113 is divided into two parts, a part described projection 115 that is used for removably connecting, another part is arranged in the light path of the light that described light-emitting device 21 launches.

Preferably, two parts of described filter 113 are one-body molded.

Accordingly, a part for the upper surface of described filter 113 connects the dip plane of described projection 115, for example, by gluing, fixes; From extended another part of upper surface of described filter 113, be arranged at the light path of the light that described light-emitting device 21 launches.

Preferably, the lower surface of described filter 113 does not connect with its upper surface the position that projection 115 is corresponding and is formed with optical coating, is beneficial to save optical coating material, cost-saving.

In addition, only will from the extended another part of described filter 113 upper surface, be arranged at the light path of the light that described light-emitting device 21 launches.The subparticipation light transmission that can avoid described filter 113 gluings to be connected with described projection 115.Its relative and prior art, avoid because there being adhesive glue in light path, along with the increase of temperature, adhesive glue produces the effect of expanding with heat and contract with cold, and causes the surperficial radian of adhesive glue to change, when light enters adhesive glue, incident angle changes, and refraction angle etc. changes then, changes direction of beam propagation, coupling efficiency is reduced, the generation of the problem that loss increases.

It should be noted that, in other embodiments of the present utility model, for the ease of discharging the steam in described matrix 10, can also on described matrix 10, offer a through hole; In addition, can also on described matrix 10, offer bayonet socket etc. according to actual demand, so that combine with other devices, at this, not be described in detail.

Certainly, in above embodiment, also comprise TIA (trans-impedance amplifier) trans-impedance amplifier, and for driving laser driving chip of light-emitting device etc., in technical field described in the utility model, these devices are all requisite components and parts in optical module, are also described later in detail in the prior art, at this, are not described in detail.

Accordingly, for light in clearer description the utility model the first embodiment transfer away to, as Fig. 2 shows, will transferring away to doing further of light in the optical module shown in Fig. 1 be illustrated.Accordingly, light transfer route schematic diagram in the single channel optical module that Fig. 2 provides for Fig. 1.

Accordingly, in light beam transmittance process, the light that described filter 113 is set to that described light-emitting device 21 is launched is divided into the first light beam and the second light beam by a certain percentage, and described the first light beam enters towards first lens 111 skiddings, and described the second light beam is towards Electro-Optical Sensor Set 23.

Accordingly, in light transmittance process, described light-emitting device 21 sends light beam to described filter 113, under the effect of filter 113, light beam is divided into two-way.

Path one: most of light, through described filter 113 refractions, is formed directional light and incided on fully reflecting surface 121 by first lens 111, and light reflects completely through described fully reflecting surface 121 afterwards, then converges to printing opacity mouth 131 through described the second lens 133;

Path two: fraction light reflexes to Electro-Optical Sensor Set 23 completely through described filter 113.

Compared with prior art, the single pass optical module that the utility model the first embodiment provides, it is wholely set described matrix, offers the first groove on described matrix, and described filter is detachably connected on to the first bottom land, reduced the distance of light-emitting device to filter, and then shortened the bang path of light beam, and shortened the distance between light-emitting device and Electro-Optical Sensor Set, rationally utilize integral layout space, can make the size of light-emitting device less, save manufacturing cost; In addition, this structure has been avoided the existence of adhesive glue in light path, has greatly improved the reliability and stability of optical assembly.

Accordingly, in conjunction with shown in Fig. 3 to Fig. 5, the single channel optical assembly structure schematic diagram that Fig. 3 provides for the utility model the second embodiment.Fig. 4 is the plan structure schematic diagram of single channel optical module shown in Fig. 3; Light transfer route schematic diagram in the single channel optical module that Fig. 5 provides for Fig. 3.Accordingly, in the structure of the single channel optical module of the second embodiment shown in Fig. 3 and Fig. 1, the structure of the single channel optical module of the first embodiment is roughly the same, its difference is: at the upper surface of described matrix 10, offer one second groove 12, one sidewall slope setting of described the second groove 12, and form fully reflecting surface 121, described fully reflecting surface 121 is for redirecting light beam to turn to, and for example 90 degree turn to.Be understandable that, in the art, can in several ways light beam redirected and be turned to.For example, a completely reflecting mirror is set on the inclined wall of described the second groove 12, to form fully reflecting surface 121 on the inclined wall at described the second groove 12; In preferred implementation of the present utility model, utilize light in communication process, there is total reflection and a sidewall of described the second groove 12 directly formed to fully reflecting surface 121 in its interface that enters into air from described matrix 10.

Accordingly, described printing opacity mouth 131 is all arranged in the one side that described matrix 10 is relative with described fully reflecting surface 121 with described the second lens 133, and described the second lens 133 are arranged between described printing opacity mouth 131 and described fully reflecting surface 121.

It should be noted that, except above-mentioned distinguishing characteristics, described the second embodiment is identical with described the first embodiment, at this, is not described in detail.

Further, on the basis of the utility model the second embodiment, in order to realize the bi-directional of light beam in matrix 10, only in described matrix 10, increase Electro-Optical Sensor Set, can realize the bi-directional of light beam.

Accordingly, as Fig. 6 shows, the single channel optical module schematic top plan view that Fig. 6 the 3rd embodiment of the present utility model provides.

Accordingly, the single channel optical module of the 3rd embodiment that the utility model provides and the difference of the single channel optical module described in above-mentioned the second embodiment are: Electro-Optical Sensor Set 23 comprises transmitting terminal Electro-Optical Sensor Set 231 and receiving end Electro-Optical Sensor Set 233, and described transmitting terminal Electro-Optical Sensor Set 231 and described receiving end Electro-Optical Sensor Set 233 all can be fixed on described circuit board 20 by conducting resinl or insulating gel.

Preferably, described circuit board is PCB circuit board.

Preferably, when described circuit board 20 is connected with described matrix 10, described transmitting terminal Electro-Optical Sensor Set 231, receiving end Electro-Optical Sensor Set 233 and described Electro-Optical Sensor Set 23 are in described the first groove 11.

Preferably, described light-emitting device 21 and the below of described transmitting terminal Electro-Optical Sensor Set 231 in filter 113, described receiving end Electro-Optical Sensor Set 233 is in the described full surface of emission 111 belows.

Preferably, described light-emitting device 21 is VCSEL laser array, and transmitting terminal Electro-Optical Sensor Set 231, receiving end Electro-Optical Sensor Set 233 are MPD back light detector battle array.

Preferably, the described MPD back light detector battle array of described VCSEL laser array, transmitting terminal is, the quantity of the described MPD back light detector battle array of receiving end is identical.

Preferably, in single pass optical module, the quantity of the described MPD back light detector battle array of described VCSEL laser array, transmitting terminal, the described MPD back light detector battle array of receiving end is 1.

Accordingly, in beam emissions process, described light-emitting device 21 sends light beam to described filter 113, under the effect of filter 113, light beam is divided into two-way.

Path one: most of light, through described filter 113 refractions, is formed directional light and incided on fully reflecting surface 121 by first lens 111, and light reflects completely through fully reflecting surface 121 afterwards, then converges to printing opacity mouth 131 through described the second lens 133;

Path two: fraction light reflexes to transmitting terminal Electro-Optical Sensor Set 231 completely through described filter 113.

Accordingly, in light beam receiving course, by printing opacity mouth 131, receive light beam, light reflexes to receiving end Electro-Optical Sensor Set 233 completely through fully reflecting surface 121 afterwards.

Be understandable that, in the single channel optical module of above-mentioned the 3rd embodiment, the bang path of light beam does not specifically illustrate, but those skilled in the art completely can know according to foregoing and the bang path of light beam in single channel optical module not be described in detail at this.

Certainly in the above-described embodiment, quantity that can also printing opacity mouth 131 is set to two, and one for luminous, and one for receiving light.

Accordingly, corresponding the second lens 133 are set respectively on two described printing opacity mouths 131, described second lens 133 are for parallel light focusing that fully reflecting surface 121 is reflected to printing opacity mouth, and one forms directional light and incides fully reflecting surface 121 for the light beam that printing opacity mouth 131 is received.

Accordingly, the quantity of described first lens 111 is also set to two, one when sending light beam, for the light that described filter 113 is reflected, form directional light and incide fully reflecting surface 121, one when receiving beam, for the light reflecting by fully reflecting surface 121 is focused on to receiving end Electro-Optical Sensor Set 231, at this, be not described in detail.

Compared with prior art, the single pass optical module that the utility model the 3rd embodiment provides, it is wholely set described matrix, on described matrix, offer the first groove, and described filter is detachably connected on to the first bottom land, reduced the distance of light-emitting device to filter, and then shortened the bang path of light beam, shortened the distance between light-emitting device and Electro-Optical Sensor Set, and in same matrix, realize the send and receive of light beam simultaneously, rationally utilize integral layout space, can make the size of light-emitting device less, save manufacturing cost; In addition, this structure has been avoided the existence of adhesive glue in light path, has greatly improved the reliability and stability of optical assembly.

Certainly, also can on the basis of first embodiment of the invention, be improved, realize the bi-directional of light beam in matrix 10, the single channel optical module of itself and the 3rd embodiment is roughly the same, at this, is not described in detail.

Further, for in same optical module, realize the multi-channel parallel transmission of light, guarantee the performance of passage simultaneously, the utility model is on the basis of the second embodiment, by described matrix 10 is carried out to simple transformation, just can in a matrix 10, realize the multi-channel parallel transmission of light.

Concrete, as Fig. 7 shows, the schematic top plan view of the Multi-channel optical assembly that Fig. 7 the utility model the 4th embodiment provides.Accordingly, the optical module that the optical module that the utility model the 4th embodiment provides and the utility model the second embodiment provide, its difference is: described light-emitting device 21 comprises one or more VCSEL laser arrays, and described Electro-Optical Sensor Set comprises one or more MPD back light detector arrays; At least 2 first lens 111, at least 2 printing opacity mouths 131 and at least 2 the second lens 133 are also set on described matrix 10.

Preferably, the quantity of described VCSEL laser array is identical with the quantity of described MPD back light detector array;

Preferably, described first lens 111, described printing opacity mouth 131 is identical with the quantity of described the second lens 133;

Preferably, at least 2 the second lens 133 surface, the same side in described matrix 10, and on same level straight line, the described printing opacity mouth 131 that quantity equates and described second lens 133 are corresponding arranges.

Preferably, at least 2 bottom lands of 111 while of first lens in the first groove 11, and on same level straight line.

Concrete, if user's demand is for having the optical module of N (N>1, and be positive integer) passage.Accordingly, there is various structures can construct the optical module with N passage; Below only lifting two kinds of structures illustrates.

Structure 1, in described optical module, the quantity of the quantity of described VCSEL laser array and described MPD back light detector array is 1; Described printing opacity mouth 131, the quantity of described the second lens 133 and first lens 111 is N;

Accordingly, the individual described first lens 111 of described N is the top in described light-emitting device 21 all, bottom at described the first groove 11 is arranged in straight line, when light is after N described the second lens 121 incide on filter 113, most of light is refracted to fully reflecting surface 121 through described filter 113, light, after fully reflecting surface 121 reflects completely, focuses on corresponding N printing opacity mouth 131 through N described the second lens 133 respectively and transmits afterwards; Fraction light directly reflexes to MPD back light detector array completely through described filter 113.

Structure 2, in described optical module, the quantity of described VCSEL laser array, the quantity of described MPD back light detector array, described printing opacity mouth 131, the quantity of described the second lens 133 and first lens 111 is N.A described N first lens 111 is the top in N described VCSEL laser array respectively, bottom at described the first groove 11 is arranged in straight line, N VCSEL laser array launched N bundle light, when N bundle light incides after filter 113 through N described first lens 111 respectively, most of light is refracted to fully reflecting surface 121 through described filter 113, light, after fully reflecting surface 121 refractions, focuses on corresponding N printing opacity mouth 131 through N described the second lens 133 respectively and transmits afterwards; Fraction light directly reflexes to respectively N MPD back light detector array completely through described filter 113.

Certainly, in other embodiments, the quantity of the quantity of described VCSEL laser array and described MPD back light detector array can freely convert, as long as guarantee that the quantity of described first lens 111 is more than or equal to port number N, can realize the N channel parallel transmission of light, at this, not be described in detail.By above description, the Multi-channel optical assembly that the utility model the 4th embodiment provides can be realized the multi-channel parallel transmission of light in same matrix 10, has simplified component design, has improved coupling efficiency, has reduced production cost.

Further, the utility model also can be realized the transmission of light multi-channel parallel on the basis of the first embodiment or the 3rd embodiment, and its principle is roughly the same with described the 4th embodiment, at this, is not described in detail.

Compared with prior art, in the optical module that the utility model provides, described matrix is wholely set, on described matrix, offers the first groove, and described filter is detachably connected on to the first bottom land, reduced the distance of light-emitting device to filter, and then shortened the bang path of light beam, and shortened the distance between light-emitting device and Electro-Optical Sensor Set, rationally utilize integral layout space, can make the size of light-emitting device less, save manufacturing cost; In addition, this structure has been avoided the existence of adhesive glue in light path, has greatly improved the reliability and stability of optical assembly.

Be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should make instructions as a whole, technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.

Listed a series of detailed description is above only illustrating for feasibility embodiment of the present utility model; they are not in order to limit protection domain of the present utility model, all disengaging within equivalent embodiment that the utility model skill spirit does or change all should be included in protection domain of the present utility model.

Claims

1. an optical module, comprises matrix, filter, and the circuit board being connected with described matrix lower surface, and described circuit board is provided with light-emitting device and Electro-Optical Sensor Set near described matrix one side;

It is characterized in that, the integral structure that described matrix is disposal molding, its upper surface is provided with a fully reflecting surface, and its lower surface offers the first groove;

2. optical module according to claim 1, is characterized in that, described body upper surface is also offered one second groove, and the sidewall of described the second groove is set to fully reflecting surface.

3. optical module according to claim 1 and 2, is characterized in that, the axis of described first lens and described the second lens is mutually vertical.

4. optical module according to claim 1 and 2, it is characterized in that, described projection has a dip plane, and a part for described filter connects the dip plane of described projection, and another part of described filter is arranged in the light path of the light that described light-emitting device launches.

5. optical module according to claim 4, is characterized in that, a part and another part of described filter are structure as a whole.

6. optical module according to claim 1 and 2, is characterized in that, described first lens is identical with described the second lens numbers.

7. optical module according to claim 1 and 2, is characterized in that, described light-emitting device and described Electro-Optical Sensor Set are contained in the first groove.

8. optical module according to claim 1 and 2, is characterized in that, described matrix one side surface is also offered a three-flute; Described the second lens are arranged at described three-flute bottom land.

9. optical module according to claim 1 and 2, is characterized in that, described filter is at the optical coating near being provided with light-permeable on the surface of described light-emitting device.

10. optical module according to claim 1 and 2, it is characterized in that, described light-emitting device comprises a plurality of VCSEL laser arrays, and described Electro-Optical Sensor Set comprises a plurality of MPD back light detector arrays, and described VCSEL laser array is identical with described MPD back light detector array quantity.

11. optical modules according to claim 10, is characterized in that, the quantity of described VCSEL laser array and described first lens is identical.