TW201435309A - Alignment apparatus - Google Patents

Abstract

An alignment apparatus is configured for regulating field of views of a first image sensor and a second image sensor. The alignment apparatus comprises a light source and a correcting plate sandwich the first image sensor and the second image sensor. The light source is set with the first image sensor or the second image sensor. Light beam emitted by the light source shines onto the correcting plate. The correcting plate comprises a plurality of shading zones and a plurality of transmission zones. The first image sensor and the second image sensor obtain image of the correcting plate from two opposite surfaces of the correcting plate.

Description

Correction device

The invention relates to an optical communication module, in particular to a calibration device in an assembly process of an optical communication module.

A general optical communication module includes a light-emitting element, a light-receiving element, and a substrate, and the light-emitting element and the light-receiving element are electrically disposed on the substrate.

During the assembly process, the light-emitting element and the light-receiving element are sucked by the suction nozzle, and then the conductive adhesive is drawn and attached to the substrate, or the conductive adhesive is first coated on the substrate, and then the light-emitting element and the light-receiving element are attached to the conductive adhesive. At present, an image sensor auxiliary nozzle is used to assemble the light emitting element and the light receiving element onto the substrate. When there are multiple image sensors, there is no effective way to correct the identification areas of the plurality of image sensors.

In view of the above, it is necessary to provide a correcting device that effectively corrects the identification regions of a plurality of image sensors.

A correction device for correcting an identification area of the first image sensor and the second image sensor, the correction device comprising at least one light source and a correction sheet, the correction sheet being located at the first image sensor and Between the second image sensors, the light source is located on a side of the first image sensor or the second image sensor, and light emitted by the light source is irradiated onto the correction sheet, and the calibration sheet has an interval And a plurality of light-shielding regions and a plurality of light-shielding regions, wherein the first image sensor and the second image sensor acquire an image of the correction sheet from an opposite surface of the correction sheet.

Compared with the prior art, the calibration apparatus of the embodiment uses the images of the calibration patches acquired by the first image sensor and the second image sensor to implement correction of the first image sensor and the second image sensor. The purpose of the calibration device is simple and the calibration method is convenient and effective.

10. . . Correction device

20. . . Nozzle

200. . . Nozzle head

11. . . First image sensor

12. . . Second image sensor

13. . . light source

14. . . Correction film

140. . . Ontology

141. . . Shading area

142. . . Light transmissive area

30. . . First image

40. . . Second image

1 is a perspective view of a calibration apparatus according to an embodiment of the present invention.

2 is a schematic diagram of an image acquired by a first image sensor in a calibration apparatus according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of an image acquired by a second image sensor in a calibration apparatus according to an embodiment of the present invention.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the calibration apparatus 10 provided by the embodiment of the present invention is configured to correct whether the identification areas of the first image sensor 11 and the second image sensor 12 that are oppositely disposed are the same. The first image sensor 11 and the second image sensor 12 may be disposed on a nozzle 20 or may be independently disposed. The nozzle 20 is used to pick up components during assembly of the optical communication module.

The correcting device 10 includes a light source 13 and a correction sheet 14, and the light emitted from the light source 13 is projected onto the correction sheet 14. The first image sensor 11 and the second image sensor 12 may be CCD sensors or CMOS sensors.

The nozzle head 200 of the nozzle 20 is located between the first image sensor 11 and the second image sensor 12, and the first image sensor 11 is located above the second image sensor 12, and the light source 13 Located on the side of the second image sensor 12.

The number of the light sources 13 is not limited, and may be one of the embodiments, or two, three or more. When the number of the light sources 13 is greater than one, all the light sources 13 should be on the same side and all the light emitting surfaces should be on the same plane to ensure that the light emitted by each light source 13 is incident on the correcting sheet 14 by the same distance. In other words, the effect on the correction sheet 14 is the same.

In other embodiments, the light source 13 may also be located on one side of the first image sensor 11 .

The correction sheet 14 is fixed to the nozzle head 200 of the nozzle 20 such that the correction sheet 14 is also located between the first image sensor 11 and the second image sensor 12. The first image sensor 11 and the second image sensor 12 have the same structure and the same distance from the correction sheet 14. The correction sheet 14 includes a body 140, a plurality of light-shielding regions 141, and a plurality of light-transmissive regions 142. The light-shielding regions 141 are matrix-distributed on the body 140. The light-transmitting regions 142 are also matrix-distributed on the body 140, and the light-shielding regions 141 and the light-transmitting regions 142. Interval setting.

The body 140 may be a glass plate of an unrestricted shape, and the light-shielding region 141 is formed by coating the opaque material, and correspondingly, the region where the opaque material is not coated is the light-transmitting region 142.

The light-shielding region 141 may have any shape, for example, a circle, a square, a triangle, or the like, which is a square shape in this embodiment.

When the first image sensor 11 and the second image sensor 12 are independently disposed, the nozzle 20 is first moved to the field of view of the first image sensor 11, and the light source 13 is turned on, and the light emitted by the light source 13 is incident. On the correction sheet 14, the light incident on the light-transmitting region 142 penetrates the light-transmitting region 142 and is incident on one side of the first image sensor 11, and the light incident on the light-shielding region 141 cannot be incident due to being blocked. One side of the image sensor 11 , such that on the side of the first image sensor 11 , the color of the corresponding area of the light-transmitting area 142 is brighter, and the color of the corresponding area of the light-shielding area 141 is darker, so the first image sense The detector 11 obtains a first image 30 of white surrounding black; then, the image of the calibration sheet 14 is acquired by the second image sensor 12, and since the light source 13 and the second image sensor 12 are located on the same side, the light is incident on the light. The light of the area 142 is transmitted to the side of the first image sensor 11, and the light incident on the light-shielding area 141 is reflected. Thus, on the side of the second image sensor 12, the color of the corresponding area of the light-transmitting area 142 is compared. The color of the corresponding area of the dark and shading area 141 is brighter. The second image sensor 12 to obtain a second image 40 black around white.

The second image 40 is opposite to the first image 30 in that the black and white portions are opposite if the center of the black portion of the first image 30 and the center of the white portion of the second image 40 If the points are the same, the center of the field of view of the first image sensor 11 coincides with the center of the field of view of the second image sensor 12, and vice versa, the center of the field of view does not coincide, and the first image sensor 11 or the first image sensor is adjusted. The image sensor 12 acquires the image of the calibration sheet 14 until the centers of the fields of view coincide to complete the correction of the first image sensor 11 and the second image sensor 12.

The correction device 10 uses the images of the calibration sheet 14 acquired by the first image sensor 11 and the second image sensor 12 to achieve the purpose of correcting the first image sensor 11 and the second image sensor 12, and correcting The structure of the device 10 is simple and the calibration method is convenient and effective.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10. . . Correction device

20. . . Nozzle

200. . . Nozzle head

11. . . First image sensor

12. . . Second image sensor

13. . . light source

14. . . Correction film

Claims (7)

A correction device for correcting oppositely disposed identification regions of the first image sensor and the second image sensor, wherein the correction device comprises at least one light source and a correction sheet, wherein the correction sheet is located in the Between the first image sensor and the second image sensor, the light source is located on a side of the first image sensor or the second image sensor, and the light emitted by the light source is irradiated onto the calibration sheet The calibration sheet has a plurality of transparent light-transmissive regions and a plurality of light-shielding regions spaced apart from each other, and the first image sensor and the second image sensor acquire an image of the correction patch from an opposite surface of the correction sheet. The correction device according to claim 1, wherein the light shielding sheet is a glass plate, and the glass plate is coated with an opaque material to form the light shielding region. The correction device of claim 1, wherein the correction sheet is partially attached to a nozzle. The correction device according to claim 3, wherein the light-transmitting regions are matrix-distributed, and the light-shielding regions are matrix-distributed. The correction device of claim 1, wherein the light source is greater than two, and the light emitting surfaces of the light source are on the same plane. The calibration device of claim 1, wherein the first image sensor and the second image sensor are CCD image sensors. The calibration device of claim 1, wherein the first image sensor and the second image sensor are CMOS image sensors.