CN115236810B - Method for coupling light receiving assembly and electronic equipment - Google Patents
Method for coupling light receiving assembly and electronic equipment Download PDFInfo
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- CN115236810B CN115236810B CN202210854197.XA CN202210854197A CN115236810B CN 115236810 B CN115236810 B CN 115236810B CN 202210854197 A CN202210854197 A CN 202210854197A CN 115236810 B CN115236810 B CN 115236810B
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- 230000008878 coupling Effects 0.000 title claims abstract description 209
- 238000010168 coupling process Methods 0.000 title claims abstract description 128
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 90
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 230000004044 response Effects 0.000 claims description 34
- 230000008859 change Effects 0.000 claims description 9
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 7
- 238000003860 storage Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4274—Electrical aspects
- G02B6/428—Electrical aspects containing printed circuit boards [PCB]
- G02B6/4281—Electrical aspects containing printed circuit boards [PCB] the printed circuit boards being flexible
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Receiving Elements (AREA)
Abstract
A method of coupling light receiving components, comprising: initializing the light receiving assemblySetting in a chemical way; coarse coupling is carried out on the light receiving component according to a first preset rule, and the maximum responsivity R is obtained 0 And coarse coupling position a 1 The method comprises the steps of carrying out a first treatment on the surface of the According to maximum responsivity R 0 And coarse coupling position a 1 Performing horizontal fine coupling on the light receiving assembly according to a second preset rule to obtain a coupling center position O of a horizontal plane flat area 1 The method comprises the steps of carrying out a first treatment on the surface of the Coupling center position O according to horizontal plane flat area 1 Performing vertical fine coupling on the light receiving component according to a third preset rule to obtain a coupling center position O of a vertical plane flat area 2 On one hand, the invention can ensure that the responsivity of the optical power can be coupled to the maximum; on the other hand, the optimum amount of positional deviation tolerance in all directions can be ensured.
Description
Technical Field
The present invention relates to the field of optoelectronics, and in particular, to a method for coupling an optical receiving component and an electronic device.
Background
The existing coupling method of the light receiving component comprises the following steps: and directly providing a coupling light source at the light port, horizontally and/or vertically adjusting the position of the integrated lens assembly relative to the receiving chip, coupling the light power/responsivity received by the receiving chip to the maximum value, recording the position and dispensing the position to fix the lens assembly. By adopting the coupling mode, the condition of optical power dropping easily occurs in the subsequent process of the optical receiving assembly, for example, the shrinkage of glue, the stress caused by high and low temperature in a temperature cycle test, the expansion of glue due to water vapor and the like, which exist in the dispensing curing process, all cause the lens assembly to deviate from the position determined during actual coupling, thereby causing the optical power or responsivity actually received by the receiving chip to be reduced to be inconsistent, and further causing the problems of low production efficiency, low product yield and poor product stability and reliability.
Disclosure of Invention
The present invention has been made in view of the above-mentioned problems, and has as its object to provide a method of coupling light receiving elements and an electronic device which overcome or at least partially solve the above-mentioned problems.
In order to solve the technical problems, the embodiment of the application discloses the following technical scheme:
a method of coupling light receiving components, comprising:
s100, initializing the light receiving assembly;
s200 according to the firstA preset rule is used for carrying out coarse coupling on the light receiving component to obtain the maximum responsivity R 0 And coarse coupling position a 1 ；
S300, according to the maximum responsivity R 0 And coarse coupling position a 1 Performing horizontal fine coupling on the light receiving assembly according to a second preset rule to obtain a coupling center position O of a horizontal plane flat area 1 ；
S400, coupling the central position O according to the flat area of the horizontal plane 1 Performing vertical fine coupling on the light receiving component according to a third preset rule to obtain a coupling center position O of a vertical plane flat area 2 ，
S500, according to the coupling center position O of the flat area of the vertical surface 2 And actually vertically coupling the margin requirement to the flat area, and determining the optimal margin coupling position.
Further, in S100, the specific method for initializing the light receiving component includes: the PD chip 13 is mounted on a PCBA board, the lens assembly is clamped, the lens center of the lens assembly is aligned with the center of the photosensitive surface of the PD chip 13 preliminarily through visual recognition, and the lens assembly is placed at a position which is vertically away from the photosensitive surface by a preset initial height.
Further, in S200, the coarse coupling of the light receiving component according to the first preset rule specifically includes: providing a coupling light source through an optical port adapter of the lens assembly, converging light on a photosensitive surface of the PD chip 13 after a series of reflection, refraction and transmission of the lens assembly, generating response current corresponding to the received light power, three-dimensionally fine-adjusting the position of the lens assembly relative to the PD chip 13 in the horizontal and vertical directions by observing the received response power of the PD chip 13 until the response power is coupled to the maximum, and recording the maximum response power R 0 And coarse coupling position a 1 。
Further, in S300, horizontal fine coupling is performed on the light receiving component according to a second preset rule, so as to obtain a coupling center position O of the horizontal plane flat area 1 The method of (1) comprises:
s301, according to the maximum responsivity R 0 Setting a first responsivity threshold value as R according to a certain proportion 1 Providing a coupling light source with a coarse coupling position A1 as the firstA base point for slightly moving the position of the lens component relative to the PD photosensitive surface in the X-axis direction by a certain step to observe the response change of the PD chip 13 until the response of the PD chip 13 is lower than the first response threshold R 1 Record the position as X 11 The method comprises the steps of carrying out a first treatment on the surface of the And then the lens assembly position is moved reversely until the responsivity of the PD chip 13 is lower than the first responsivity threshold R 1 Record the position as X 12 The method comprises the steps of carrying out a first treatment on the surface of the Then at A 1 When in position, the X-axis flat area allowance x= |X is provided 11 -X 12 |；
S302, re-use A 1 As a first base point, the position of the lens component relative to the PD photosensitive surface is slightly moved in a certain step in the Y-axis direction, and the response change of the PD chip 13 is observed until the response of the PD chip 13 is lower than a first response threshold R 1 Record the position as Y 11 The method comprises the steps of carrying out a first treatment on the surface of the And then the lens assembly position is moved reversely until the responsivity of the PD chip 13 is lower than the first responsivity threshold R 1 Record the position as Y 12 The method comprises the steps of carrying out a first treatment on the surface of the Then at A 1 When in position, the Y-axis flat area allowance y= |Y is provided 11 -Y 12 |；
S303 according to X 11 、X 12 And Y 11 、Y 12 Determining the coupling center position on the horizontal plane as O 1 The method comprises the steps of carrying out a first treatment on the surface of the And at a central position O 1 The coordinate builds a flat area range on an XY plane, and the specific method comprises the following steps: the coupling center position adopts an ellipse formula (x-h) 2 /a 2 +(y-k) 2 /b 2 Determination of =1, i.e. X 11 、X 12 、Y 11 、Y 12 The coordinates are substituted into the elliptic formula to determine h, k, a, b value, namely the coordinate positions (h, k) are the coupling center position O 1 The area within the elliptical boundary line is the flat area range.
Further, the coupling center position O of the flat area of the horizontal plane is obtained 1 Then, the horizontal plane coupling center position O is checked 1 The checking method comprises the following steps: move lens Assembly to O 1 The position, according to the steps S301-S302, is obtained at the coupling center position O 1 X-axis flat margin X1 and Y-axis flat margin Y 1 The method comprises the steps of carrying out a first treatment on the surface of the If the preset margin range is met,then, a plurality of positions are randomly selected within the constructed flat area, and if the responsivity of the PD chip 13 measured at the plurality of positions meets the first responsivity threshold value R 1 Then the determined coupling center position O is determined 1 Meets the requirements, and can be operated for the next step; if one of the plurality of positions has a responsivity which does not meet the first responsivity threshold value of R 1 Judging the determined coupling center position O 1 Deviation exists; then add O 1 For the base point, finding the boundary position meeting the requirements on the horizontal plane, namely repeating S301-S303 until the coupling center position O meeting the requirements on the horizontal plane is found 1 。
Further, in S400, the light receiving component is finely coupled in the vertical direction according to a third preset rule to obtain a coupling center position O of the flat area of the vertical surface 2 The method of (1) comprises:
s401 providing a coupled light source to O 1 As a second base point, the height of the lens assembly relative to the PD photosensitive surface is finely adjusted in a certain step in the Z-axis direction, the response change of the PD chip 13 is observed, and if the response meets the first response threshold R 1 Then, by the requirement, at the point Z 1 Repeating S301-S302 as base point, and obtaining the base point in Z 1 In the height position, the flat area allowance x on the corresponding horizontal plane 2 And y 2 The method comprises the steps of carrying out a first treatment on the surface of the If the two flat area allowance on the horizontal plane meets the range requirement of the preset allowance x and y, continuing to move the lens component position in the same direction and confirming the responsivity of the position after the movement and the flat area allowance on the horizontal plane corresponding to the position again, and circulating until finding that the responsivity meets the first responsivity threshold R 1 The requirement, and the margin of the flat area on the horizontal plane just meets the boundary position of the requirement of the preset margin range, and the vertical boundary position is recorded as Z 11 ；
S402, reversely moving the lens assembly in the height direction according to the step S401, and determining the boundary position Z conforming to the preset rule in the other direction in the height direction 12 ；
S403, according to the boundary position Z 11 、Z 12 Determining a vertical planar zone coupling margin z= |z 11 -Z 12 I and according to the boundary positionCenter of vertical alignment coupling O 2 。
Further, the vertical plane flat area coupling center position O is obtained 2 Then, the horizontal plane coupling center position O is checked 2 The checking method comprises the following steps:
move lens Assembly to O 1 The position, according to the steps S301-S302, is obtained at the coupling center position O 1 X axial flat zone margin X 3 And a Y-axis flat zone margin Y 3 The method comprises the steps of carrying out a first treatment on the surface of the If the preset margin range is met, then at the boundary position Z 11 、Z 12 In the vertical range, a plurality of height positions are randomly selected, the PD chip 13 receives the responsivity, and if the responsivity meets the first responsivity threshold R 1 Measuring the level flat area margins x4 and y4 when the height position is measured, and if the level flat area margins accord with the preset margin range, confirming the coupling center position O 2 The method meets the requirements, and the final coupling position is determined; if the measured PD chip 13 receives the responsivity, the first responsivity threshold R is not met 1 Then by O 2 Repeating steps S401-S403 until a satisfactory vertical coupling center position O is found for the second base point 2 。
Further, the center position O is coupled according to the vertical plane flat area 2 And the actual vertical coupling allowance requirement to the flat area, the method for determining the optimal allowance coupling position is as follows: acquiring the coupling allowance required by the vertical direction for upward and downward, and if the coupling allowance required by the vertical direction for upward and downward is the same, the optimal coupling position is the vertical coupling center O 2 The method comprises the steps of carrying out a first treatment on the surface of the If the coupling margin required by the vertical direction for upward and downward is different, if the coupling margin requirement for downward is greater than the coupling margin requirement for upward, the vertical direction is coupled to the center O 2 A certain distance above, otherwise, the vertical coupling center O 2 A certain distance below.
The invention also discloses an electronic device, which is characterized by comprising:
a memory for storing instructions executable by the processor;
and a processor configured to execute the instructions to implement a method of coupling light receiving components.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the invention discloses a method for coupling light receiving components, which comprises the following steps: initializing the light receiving assembly; coarse coupling is carried out on the light receiving component according to a first preset rule, and the maximum responsivity R is obtained 0 And coarse coupling position a 1 The method comprises the steps of carrying out a first treatment on the surface of the According to maximum responsivity R 0 And coarse coupling position a 1 Performing horizontal fine coupling on the light receiving assembly according to a second preset rule to obtain a coupling center position O of a horizontal plane flat area 1 The method comprises the steps of carrying out a first treatment on the surface of the Coupling center position O according to horizontal plane flat area 1 Performing vertical fine coupling on the light receiving component according to a third preset rule to obtain a coupling center position O of a vertical plane flat area 2 ，
According to the method, after the maximum responsivity of the coupling is achieved through coarse coupling, the first responsivity threshold R1 is determined according to the maximum responsivity value R0, and the coupling center position of the flat area on the horizontal plane is rapidly and accurately determined; and the coupling center of the horizontal plane flat area is taken as a base point, and then the coupling center of the vertical flat area is confirmed; and finally, determining the optimal margin coupling position according to the actual requirement of the coupling margin of the vertical area to the flat area. On one hand, the optical power responsivity can be coupled to the maximum; on the other hand, the optimum amount of positional deviation tolerance in all directions can be ensured. For example, even if the subsequent process or environment causes the lens assembly to deviate in a certain direction after the dispensing solidification, the actual receiving responsivity can still meet the requirement, the tolerance to uncontrollable deviation can be improved, and the reliability and stability of the product are ensured.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a flowchart of a method for coupling light receiving components in embodiment 1 of the present invention;
fig. 2 is a simplified schematic diagram of a light receiving assembly according to embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of the responsivity curve of the receiving chip at different positions of the lens assembly in embodiment 2 of the present invention;
FIG. 4 is a schematic diagram showing the determination of the coupling center of the horizontal plane according to the boundary positions of the flat areas on the X-axis and the Y-axis in the embodiment 2 of the present invention;
fig. 5 is a schematic diagram showing determination of the position of the vertical coupling center in embodiment 2 of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problems in the prior art, the embodiment of the invention provides a method for coupling a light receiving component and electronic equipment.
Example 1
The embodiment discloses a method for coupling light receiving components, as shown in fig. 1, including:
s100, initializing the light receiving assembly; specifically, as shown in fig. 2, the PD chip 13 is mounted on the PCBA board 12, the lens assembly 11 is held, and the lens center of the lens assembly 11 is aligned with the center of the photosurface of the PD chip 13 preliminarily by visual recognition, and is placed at a position vertically away from the photosurface by a preset initial height. The PD chip 13 is generally referred to as a photodiode (Photo-Diode). The PD chip 13 functions mainly to convert an optical signal into an electrical signal, i.e., photoelectric conversion is thus commonly used in an optical receiver.
S200, performing coarse coupling on the light receiving component according to a first preset rule to obtain maximum responsivity R 0 And coarse coupling position a 1 ；
In S200 of the present embodiment, the light receiving element is coarsened according to a first predetermined ruleThe coupling specifically comprises: providing a coupling light source through the optical port adapter of the lens assembly 11, converging light on the photosensitive surface of the PD chip 13 after a series of reflection, refraction and transmission of the lens assembly 11 so as to generate response current corresponding to the received light power, three-dimensionally fine-adjusting the position of the lens assembly 11 relative to the PD chip 13 in the horizontal and vertical directions by observing the received response power of the PD chip 13 until the response power is coupled to the maximum, and recording the maximum response power R 0 And coarse coupling position a 1 。
S300, according to the maximum responsivity R 0 And coarse coupling position a 1 Performing horizontal fine coupling on the light receiving assembly according to a second preset rule to obtain a coupling center position O of a horizontal plane flat area 1 ；
In S300 of this embodiment, horizontal fine coupling is performed on the light receiving component according to a second preset rule, so as to obtain a coupling center position O of the horizontal plane flat area 1 The method of (1) comprises:
s301, according to the maximum responsivity R 0， Setting a first responsivity threshold value as R according to a certain proportion 1 (e.g. set to R 1 ＝0.9R 0 ) Optical port 111 provides a coupled light source to coarsely couple position a 1 As a first base point, the position of the lens assembly 11 relative to the PD photosensitive surface is slightly shifted in the X-axis direction by a certain step, and the change in the responsivity of the PD chip 13 is observed until the responsivity of the PD chip 13 is lower than the first responsivity threshold R 1 Record the position as X 11 The method comprises the steps of carrying out a first treatment on the surface of the And then the position of the lens assembly 11 is moved reversely until the responsivity of the PD chip 13 is lower than the first responsivity threshold R 1 Record the position as X 12 The method comprises the steps of carrying out a first treatment on the surface of the Then at A 1 When in position, the X-axis flat area allowance x= |X is provided 11 -X 12 |；
Specifically, it is found through research that when the actual lens assembly 11 is at different positions, the response curve received by the receiving chip 13 is a flat area, as shown in fig. 3, that is, the response curve received by the actual lens is within a certain range, and the response curve received by the actual lens can meet the maximum value; in this case, the responsivity is simply coupled to the maximum and fixed at the time of coupling. This coupling mode exists when the actual lens position is not at the optimal coupling point when the coupling to responsivity is maximum. For example, there is a position determined when the lens assembly is coupled, but the requirement of maximum responsiveness can be just met, but the responsiveness is easily lower than the target value as long as a little deviation is generated in the subsequent process or environment. Namely, the coupling position determined by the existing coupling mode is equivalent to the coupling position, the provided position deviation tolerance is small, and the disqualification of the response value of the product, the poor stability and the poor reliability are easily caused by the follow-up procedure or external environment factors. Therefore, the method can solve the problem that the optical power is easy to fall after the lens is coupled and fixed.
S302, re-use A 1 As a first base point, the position of the lens assembly 11 relative to the PD photosensitive surface is slightly shifted in the Y-axis direction by a certain step, and the change in the responsivity of the PD chip 13 is observed until the responsivity of the PD chip 13 is lower than the first responsivity threshold R 1 Record the position as Y 11 The method comprises the steps of carrying out a first treatment on the surface of the And then the position of the lens assembly 11 is moved reversely until the responsivity of the PD chip 13 is lower than the first responsivity threshold R 1 Record the position as Y 12 The method comprises the steps of carrying out a first treatment on the surface of the Then at A 1 When in position, the Y-axis flat area allowance y= |Y is provided 11 -Y 12 |；
S303 according to X 11 、X 12 And Y 11 、Y 12 Determining the coupling center position on the horizontal plane as O 1 The method comprises the steps of carrying out a first treatment on the surface of the And at a central position O 1 The coordinate builds a flat area range on an XY plane, and the specific method comprises the following steps: as shown in FIG. 4, the coupling center position is represented by an ellipse formula (x-h) 2 /a 2 +(y-k) 2 /b 2 Determination of =1, i.e. X 11 、X 12 、Y 11 、Y 12 The coordinates are substituted into the elliptic formula to determine h, k, a, b value, namely the coordinate positions (h, k) are the coupling center position O 1 The area within the elliptical boundary line is the flat area range.
In the present embodiment, the horizontal plane flat area coupling center position O is obtained 1 Then, the horizontal plane coupling center position O is checked 1 The checking method comprises the following steps: move lens assembly 11 to O 1 The position is obtained according to the steps S301-S302Taken at the coupling center position O 1 X-axis flat margin X1 and Y-axis flat margin Y 1 The method comprises the steps of carrying out a first treatment on the surface of the If the measured responsivity of the PD chip 13 at the plurality of positions meets the first responsivity threshold value R 1 Then the determined coupling center position O is determined 1 Meets the requirements, and can be operated for the next step; if one of the plurality of positions has a responsivity which does not meet the first responsivity threshold value of R 1 Judging the determined coupling center position O 1 Deviation exists; then add O 1 For the base point, finding the boundary position meeting the requirements on the horizontal plane, namely repeating S301-S303 until the coupling center position O meeting the requirements on the horizontal plane is found 1 。
S400, coupling the central position O according to the flat area of the horizontal plane 1 Performing vertical fine coupling on the light receiving component according to a third preset rule to obtain a coupling center position O of a vertical plane flat area 2 ，
In the embodiment S400, the light receiving component is finely coupled in the vertical direction according to a third preset rule to obtain the coupling center position O of the flat area of the vertical surface 2 The method of (1) comprises:
s401, the optical port 111 provides a coupling light source to O 1 As a second base point, the height of the lens assembly 11 relative to the PD photosensitive surface is finely adjusted in a certain step in the Z-axis direction, the response change of the PD chip 13 is observed, and if the response meets the first response threshold R 1 Then, by the requirement, at the point Z 1 Repeating S301-S302 as base point, and obtaining the base point in Z 1 In the height position, the flat area allowance x on the corresponding horizontal plane 2 And y 2 The method comprises the steps of carrying out a first treatment on the surface of the If the two flat area allowance on the horizontal plane meets the range requirement of the preset allowance x and y, continuing to move the position of the lens component 11 in the same direction and confirming again the responsivity of the position after the movement and the flat area allowance on the horizontal plane corresponding to the position, and circulating until finding that the responsivity meets the first responsivity threshold R 1 The requirement, and the margin of the flat area on the horizontal plane just meets the boundary position of the requirement of the preset margin range, and the vertical boundary position is recorded as Z 11 Tool for cleaning and cleaningA schematic diagram is shown in fig. 5;
s402, according to the step S401, reversely moving the lens assembly 11 in the height direction, and determining the boundary position Z conforming to the preset rule in the other direction in the height direction 12 ；
S403, according to the boundary position Z 11 、Z 12 Determining a vertical planar zone coupling margin z= |z 11 -Z 12 I, and determining a vertical coupling center O according to the boundary position 2 。
In some preferred embodiments, the vertical plane flat zone coupling center position O is obtained 2 Then, the horizontal plane coupling center position O is checked 2 The checking method comprises the following steps:
move lens assembly 11 to O 2 The position, according to the steps S301-S302, is obtained at the coupling center position O 2 X axial flat zone margin X 3 And a Y-axis flat zone margin Y 3 The method comprises the steps of carrying out a first treatment on the surface of the If the preset margin range is met, then at the boundary position Z 11 、Z 12 In the vertical range, a plurality of height positions are randomly selected, the PD chip 13 receives the responsivity, and if the responsivity meets the first responsivity threshold R 1 Measuring the level flat area margins x4 and y4 when the height position is measured, and if the level flat area margins accord with the preset margin range, confirming the coupling center position O 2 The method meets the requirements, and the final coupling position is determined; if the measured PD chip 13 receives the responsivity, the first responsivity threshold R is not met 1 Then by O 2 Repeating steps S401-S403 until a satisfactory vertical coupling center position O is found for the second base point 2 。
S500, according to the coupling center position O of the flat area of the vertical surface 2 And actually vertically coupling the margin requirement to the flat area, and determining the optimal margin coupling position.
In the present embodiment S500, the center position O is coupled according to the vertical plane flat area 2 And the actual vertical coupling allowance requirement to the flat area, the method for determining the optimal allowance coupling position is as follows: acquiring the coupling allowance required by the vertical direction for the upward and downward directions, and if the coupling allowance required by the vertical direction for the upward and downward directions is the same, the optimal coupling position is the coupling in the vertical directionHeart O2; if the coupling margin required for the vertical direction is different for the upward and downward directions, if the downward coupling margin requirement is greater than the upward coupling margin requirement, the position above the vertical coupling center 02 by a certain distance (this specific distance is determined comprehensively according to the vertical-direction flat area coupling margin, and the upward and downward coupling margin requirements) is determined as the optimal margin coupling position, so that relatively more position deviation margins are left for the downward direction. Otherwise, the coupling center O2 is vertically and vertically arranged below a certain distance.
The embodiment discloses a method for coupling light receiving components, which comprises the following steps: initializing the light receiving assembly; coarse coupling is carried out on the light receiving component according to a first preset rule, and the maximum responsivity R is obtained 0 And coarse coupling position a 1 The method comprises the steps of carrying out a first treatment on the surface of the According to maximum responsivity R 0 And coarse coupling position a 1 Performing horizontal fine coupling on the light receiving assembly according to a second preset rule to obtain a coupling center position O of a horizontal plane flat area 1 The method comprises the steps of carrying out a first treatment on the surface of the Coupling center position O according to horizontal plane flat area 1 Performing vertical fine coupling on the light receiving component according to a third preset rule to obtain a coupling center position O of a vertical plane flat area 2 ，
The embodiment discloses a coupling method of a light receiving component, which comprises the steps of firstly coarsely coupling to the maximum responsivity, and then according to the maximum responsivity value R 0 Determining a first responsivity threshold value R 1 The method is used for rapidly and accurately determining the coupling center position of the flat area on the horizontal plane; and the coupling center of the horizontal plane flat area is taken as a base point, and then the coupling center of the vertical flat area is confirmed; and finally, determining the optimal margin coupling position according to the actual requirement of the coupling margin of the vertical area to the flat area. On one hand, the optical power responsivity can be coupled to the maximum; on the other hand, the optimum amount of positional deviation tolerance in all directions can be ensured. For example, even if the subsequent process or environment causes the lens assembly to deviate in a certain direction after the dispensing solidification, the actual receiving responsivity can still meet the requirement, the tolerance to uncontrollable deviation can be improved, and the reliability and stability of the product are ensured.
Example 2
The invention also discloses an electronic device, which is characterized by comprising:
a memory for storing instructions executable by the processor;
a processor configured to execute the instructions to implement the method described in embodiment 1.
It should be understood that the specific order or hierarchy of steps in the processes disclosed are examples of exemplary approaches. Based on design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not meant to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of this invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. The processor and the storage medium may reside as discrete components in a user terminal.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. These software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.
The foregoing description includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, as used in the specification or claims, the term "comprising" is intended to be inclusive in a manner similar to the term "comprising," as interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean "non-exclusive or".
Claims (5)
1. A method of coupling light receiving elements, comprising:
s100, initializing the light receiving assembly;
s200, performing coarse coupling on the light receiving component according to a first preset rule to obtain maximum responsivity R 0 And coarse coupling position a 1 ；
S300, according to the maximum responsivity R 0 And coarse coupling position a 1 Performing horizontal fine coupling on the light receiving assembly according to a second preset rule to obtain a coupling center position O of a horizontal plane flat area 1 ；
S400, coupling the central position O according to the flat area of the horizontal plane 1 Performing vertical fine coupling on the light receiving component according to a third preset rule to obtain a coupling center position O of a vertical plane flat area 2 ，
S500, according to the coupling center position O of the flat area of the vertical surface 2 And the actual vertical coupling margin requirement to the flat area, and determining the optimal margin coupling position;
in S100, a specific method for initializing the light receiving component includes: mounting a PD chip (13) on a PCBA board, clamping a lens assembly, enabling the lens center of the lens assembly to be aligned with the center of a photosensitive surface of the PD chip (13) preliminarily through visual identification, and placing the lens center at a position which is vertically away from the photosensitive surface by a preset initial height;
in S200, performing coarse coupling on the light receiving component according to a first preset rule, which specifically includes: providing a coupling light source through an optical port adapter of the lens assembly, converging light onto a photosensitive surface of the PD chip (13) after a series of reflection, refraction and transmission of the lens assembly, generating response current corresponding to the received light power, three-dimensionally fine-adjusting the position of the lens assembly relative to the PD chip (13) in the horizontal and vertical directions by observing the received response power of the PD chip (13) until the response power is coupled to the maximum, and recording the maximum response power R 0 And coarse coupling position a 1 ；
In S300, horizontal fine coupling is performed on the light receiving component according to a second preset rule, and a coupling center position O of a horizontal plane flat area is obtained 1 The method of (1) comprises:
s301, according to the maximum responsivity R 0 According toSetting a first responsivity threshold value to be R in a certain proportion 1 Providing a coupling light source, taking the rough coupling position A1 as a first base point, slightly moving the position of the lens component relative to the PD photosensitive surface in the X-axis direction by a certain step, and observing the response change of the PD chip (13) until the response of the PD chip (13) is lower than a first response threshold R 1 Record the position as X 11 The method comprises the steps of carrying out a first treatment on the surface of the And then reverse micro-moving the lens assembly position until the responsivity of the PD chip (13) is lower than a first responsivity threshold R 1 Record the position as X 12 The method comprises the steps of carrying out a first treatment on the surface of the Then at A 1 When in position, the X-axis flat area allowance x= |X is provided 11 -X 12 |；
S302, re-use A 1 As a first base point, the position of the lens component relative to the PD photosensitive surface is slightly moved in a certain step in the Y-axis direction, and the response change of the PD chip (13) is observed until the response of the PD chip (13) is lower than a first response threshold R 1 Record the position as Y 11 The method comprises the steps of carrying out a first treatment on the surface of the And then reverse micro-moving the lens assembly position until the responsivity of the PD chip (13) is lower than a first responsivity threshold R 1 Record the position as Y 12 The method comprises the steps of carrying out a first treatment on the surface of the Then at A 1 When in position, the Y-axis flat area allowance y= |Y is provided 11 -Y 12 |；
S303 according to X 11 、X 12 And Y 11 、Y 12 Determining the coupling center position on the horizontal plane as O 1 The method comprises the steps of carrying out a first treatment on the surface of the And at a central position O 1 The coordinate builds a flat area range on an XY plane, and the specific method comprises the following steps: the coupling center position adopts an ellipse formula (x-h) 2 /a 2 +(y-k) 2 /b 2 Determination of =1, i.e. X 11 、X 12 、Y 11 、Y 12 The coordinates are substituted into the elliptic formula to determine h, k, a, b value, namely the coordinate positions (h, k) are the coupling center position O 1 The area in the elliptical boundary line is a flat area range;
s400, performing vertical fine coupling on the light receiving component according to a third preset rule to obtain a coupling center position O of a flat area of a vertical surface 2 The method of (1) comprises:
s401 providing a coupled light source to O 1 As the second base point, in the Z-axis directionThe height of the lens component relative to the PD photosensitive surface is finely adjusted by a certain step, the responsivity change of the PD chip (13) is observed, and if the responsivity accords with a first responsivity threshold R 1 The requirement is that the responsivity meets the first responsivity threshold R 1 Required point Z 1 Repeating S301-S302 as base point, and obtaining the base point in Z 1 In the height position, the flat area allowance x on the corresponding horizontal plane 2 And y 2 The method comprises the steps of carrying out a first treatment on the surface of the If the two flat area allowance on the horizontal plane meets the range requirement of the preset allowance x and y, continuing to move the lens component position in the same direction and confirming the responsivity of the position after the movement and the flat area allowance on the horizontal plane corresponding to the position again, and circulating until finding that the responsivity meets the first responsivity threshold R 1 The requirement, and the margin of the flat area on the horizontal plane just meets the boundary position of the requirement of the preset margin range, and the vertical boundary position is recorded as Z 11 ；
S402, reversely moving the lens assembly in the height direction according to the step S401, and determining the boundary position Z conforming to the preset rule in the other direction in the height direction 12 ；
S403, according to the boundary position Z 11 、Z 12 Determining a vertical planar zone coupling margin z= |z 11 -Z 12 I, and determining the vertical coupling center position O according to the boundary position 2 。
2. The method of coupling a light receiving element according to claim 1, wherein a horizontal plane flat area coupling center position O is obtained 1 Then, the horizontal plane coupling center position O is checked 1 The checking method comprises the following steps: move lens Assembly to O 1 The position, according to the steps S301-S302, is obtained at the coupling center position O 1 X-axis flat margin X1 and Y-axis flat margin Y 1 The method comprises the steps of carrying out a first treatment on the surface of the If the measured responsivity of the PD chip (13) at the plurality of positions meets a first responsivity threshold value R 1 Then the determined coupling center position O is determined 1 Meets the requirements, and can be operated for the next step; if a plurality of positionsHas a position with responsivity not meeting the first responsivity threshold value of R 1 Judging the determined coupling center position O 1 Deviation exists; then add O 1 For the base point, finding the boundary position meeting the requirements on the horizontal plane, namely repeating S301-S303 until the coupling center position O meeting the requirements on the horizontal plane is found 1 。
3. The method of coupling a light receiving element according to claim 1, wherein a vertical plane flat area coupling center position O is obtained 2 Then, the coupling center position O of the flat area of the vertical surface is also checked 2 The checking method comprises the following steps: move lens Assembly to O 1 The position, according to the steps S301-S302, is obtained at the coupling center position O 1 X axial flat zone margin X 3 And a Y-axis flat zone margin Y 3 The method comprises the steps of carrying out a first treatment on the surface of the If the preset margin range is met, then at the boundary position Z 11 、Z 12 In the vertical range, randomly selecting a plurality of height positions, measuring the receiving responsivity of the PD chip (13), and if the receiving responsivity meets a first responsivity threshold R 1 Measuring the level flat area margins x4 and y4 when the height position is measured, and if the level flat area margins accord with the preset margin range, confirming the coupling center position O 2 The method meets the requirements, and the final coupling position is determined; if the measured PD chip (13) receives the responsivity, the first responsivity threshold R is not met 1 Then by O 2 Repeating steps S401-S403 until a satisfactory vertical coupling center position O is found for the second base point 2 。
4. The method of coupling a light receiving element according to claim 1, wherein in S500, the coupling center position O is based on a vertical plane flat area 2 And the actual vertical coupling allowance requirement to the flat area, the method for determining the optimal allowance coupling position is as follows: acquiring the coupling allowance required by the vertical direction for upward and downward, and if the coupling allowance required by the vertical direction for upward and downward is the same, the optimal coupling position is the vertical coupling center position O 2 The method comprises the steps of carrying out a first treatment on the surface of the If the coupling margin required for the vertical direction is different for the upward and downward directions, if the coupling margin is downwardThe quantity requirement is greater than the upward coupling allowance requirement, the vertical coupling center position O is formed 2 A certain distance above, otherwise, the vertical direction is coupled with the central position O 2 A certain distance below.
5. An electronic device, comprising:
a memory for storing instructions executable by the processor;
a processor configured to execute the instructions to implement the method of any of claims 1-4.
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| CN108604010A (en) * | 2016-02-02 | 2018-09-28 | 三星电子株式会社 | Method and the equipment for the drift in calibration equipment |
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