CN103108113A - Optical system in ball grid array (BGA) repair workstation - Google Patents
Optical system in ball grid array (BGA) repair workstation Download PDFInfo
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- CN103108113A CN103108113A CN2011103604635A CN201110360463A CN103108113A CN 103108113 A CN103108113 A CN 103108113A CN 2011103604635 A CN2011103604635 A CN 2011103604635A CN 201110360463 A CN201110360463 A CN 201110360463A CN 103108113 A CN103108113 A CN 103108113A
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- imaging lens
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Abstract
An optical system in a ball grid array (BGA) repair workstation comprises an imaging lens in a cube structure, a charge coupled device (CCD) imaging sensor and a light-emitting diode (LED) display which are connected in sequence. The upper face and the lower face of the imaging lens in the cube structure are capable of achieving collection of light signals and converting an image to be displayed to the light signals. A semi-transparent semi-reflecting film is arranged on a diagonal plane of the imaging lens in the cube structure and is capable of achieving reflection and transmission of the light signals. A reflecting surface is arranged in a position opposite to the diagonal plane and is capable of achieving reversal of a light path and adjusting two paths of light signals to be the light signals in the same direction. The CCD imaging sensor is capable of converting the light signals transmitted from the imaging lens to electric signals. The LED display is capable of displaying the electric signals transmitted from the CCD imaging sensor on the LED display and completing display of the whole imaging optical system. The optical system in the BGA repair workstation is capable of achieving the purpose of clearly displaying a soldering station on a printed circuit board (PCB) and BGA pins on one LED display, achieves replacing and rewelding of a damaged BGA, and ensures the workability of a BGA.
Description
Technical field
The present invention relates to the spectroscopic imaging optical system, be specifically related to spectroscopic imaging optical system in the reclamation work station of a kind of BGA.
Technical background
be accompanied by the appearance of large scale integrated circuit, people are for the electronics in life, the pursuit of digital product is except the performance from beginning, function, beginning till now increases its portability, the requirement of flexibility, therefore a large amount of BGA begins to be applied in various electronic circuits, so be accompanied by the extensive application of BGA, will keep in repair and change it after BGA goes wrong, a large amount of pin in the face of the BGA element, pure manual replacing and maintenance efficiency are too low, the quality of changing in addition also can't ensure, thereby be necessary to complete the automation of its maintenance process, can realize the efficient and convenient of its replacing speed, advance the integrated of electronic product.
Summary of the invention
The shortcoming that exists in order to overcome above-mentioned prior art, the object of the present invention is to provide spectroscopic imaging optical system in the reclamation work station of a kind of BGA, what the present invention is directed to is the reclamation work of the BGA that damages on pcb board, can realize welding stage on pcb board and BGA pin are shown on a light-emitting diode display clearly, realize damaging the replacing of BGA and welding again, guarantee the workability of BGA.
For achieving the above object, the present invention is by the following technical solutions:
Optical system in a kind of BGA reclamation work station comprises the imaging lens of a cube structure that is connected successively, a ccd image sensor 3 and a light-emitting diode display 4; The imaging lens upper and lower surfaces of described cube structure are transmission plane, and semi-transparent half antiferromagnetic thin film 1 is arranged on the imaging lens body diagonal plane of cube structure, can realize reflection and the transmission of light signal; Relative position in its body diagonal plane has one can realize the reflecting surface 2 that light path reverses, and two-way imaging signal can be adjusted into unidirectional light signal;
The imaging lens of described cube structure is bonded by the identical equilateral wedge shape in right angle of two block-shaped structures, accompanies one deck semi-reflective and semitransmittable thin film 1 in the centre of bonding part.
Described ccd image sensor 3 can be converted to the signal of telecommunication with the light signal that imaging lens transmits.
The signal of telecommunication reality that described light-emitting diode display 4 can send ccd image sensor is completed the demonstration of whole imaging optical system on light-emitting diode display.
The present invention utilizes the principle of optical imagery, be light signal with the image transitions that gathers, utilize the conversion of the image light path of the semi-transparent semi-reflecting film 1 of camera lens inside and 2 pairs of collections of reflecting surface, realization is passed to it on ccd image sensor 3, realization is converted to the signal of telecommunication with light signal, finally by light-emitting diode display 4, can realize welding stage on pcb board and BGA pin are shown on a light-emitting diode display clearly, realize damaging the replacing of BGA and welding again, realize the reclamation work of BGA.
Description of drawings:
Fig. 1 is spectroscopic imaging camera lens working light path figure in BGA reclamation work station.
Fig. 2 is BGA reclamation work station spectroscopic imaging optical system.
Embodiment:
Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in more detail.
as shown in Figure 1, optical system in a kind of BGA reclamation work of the present invention station, the profile of the imaging lens integral body of cube structure is cube structure, the camera lens of this cube shape is bonded by two equilateral right angle wedge shapes, the centre is added with the semi-transparent semi-reflecting film 1 of one deck, camera lens transmits with the direction of propagation of L1 by gathering the image that top is formed, after arriving semi-transparent semi-reflecting film 1, this moment, semi-transparent semi-reflecting film 1 was with mirror surface, can realize the reflection of light signal, arrive the CCD image sensor according to the light path shown in figure, upper image is presented on light-emitting diode display, imaging lens sends the image of bottom to optical imaging lens according to the direction of propagation of L2, after arriving semi-transparent semi-reflecting film 1, take semi-transparent semi-reflecting film 1 as mirror surface, light path changes, be sent on reflecting surface 2, reflecting surface 2 is sent to the light path of light path according to retro-reflection on semi-transparent semi-reflecting film 1 again, and this moment, semi-transparent semi-reflecting film 1 was one can realize the film of transmission principle, it can be penetrated light signal according to direction as shown,
As shown in Figure 2, two light signal L1 of ejaculation and L2 are through after the processing of ccd image sensor 3, be transformed to electric image signal, be sent on light-emitting diode display 4, realize the two-way picture signal is shown on same light-emitting diode display, realize the demonstration of welding plate on BGA pin and pcb board and relatively contrast.
the operation principle of the optical system in a kind of BGA reclamation work of the present invention station is: the principle of utilizing optical imagery, be light signal with the image transitions that gathers, utilize the conversion of the image light path of the semi-transparent semi-reflecting film 1 of camera lens inside and 2 pairs of collections of reflecting surface, realization is passed to it on ccd image sensor 3, ccd image sensor 3 is realized light signal is converted to the signal of telecommunication, final by light-emitting diode display 4, can realize welding stage on pcb board and BGA pin are shown on a light-emitting diode display clearly, realize damaging the replacing of BGA and welding again, realize the reclamation work of BGA.
Claims (4)
1. the optical system in a BGA reclamation work station, is characterized in that: comprise the imaging lens of a cube structure that is connected successively, a ccd image sensor (3) and a light-emitting diode display (4); The imaging lens upper and lower surfaces of described cube structure are transmission plane, and semi-transparent half antiferromagnetic thin film (1) is arranged on the imaging lens body diagonal plane of cube structure, can realize reflection and the transmission of light signal; Relative position in its body diagonal plane has one can realize the reflecting surface (2) that light path reverses, and two-way imaging signal can be adjusted into unidirectional light signal.
2. optical system according to claim 1, it is characterized in that: the imaging lens of described cube structure is bonded by the identical equilateral wedge shape in right angle of two block-shaped structures, accompanies one deck semi-reflective and semitransmittable thin film (1) in the centre of bonding part.
3. optical system according to claim 1 and 2 is characterized in that: described ccd image sensor (3) can be converted to the signal of telecommunication with the light signal that imaging lens transmits.
4. optical system according to claim 1 and 2, it is characterized in that: the signal of telecommunication reality that described light-emitting diode display (4) can send ccd image sensor is completed the demonstration of whole imaging optical system on light-emitting diode display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103604635A CN103108113A (en) | 2011-11-15 | 2011-11-15 | Optical system in ball grid array (BGA) repair workstation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103604635A CN103108113A (en) | 2011-11-15 | 2011-11-15 | Optical system in ball grid array (BGA) repair workstation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103108113A true CN103108113A (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103604635A Pending CN103108113A (en) | 2011-11-15 | 2011-11-15 | Optical system in ball grid array (BGA) repair workstation |
Country Status (1)
| Country | Link |
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| CN (1) | CN103108113A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103593121A (en) * | 2013-10-08 | 2014-02-19 | 清华大学深圳研究生院 | One-fourth-screen display method used for visual aligning between chip pin and welding disc |
| CN103874343A (en) * | 2014-04-04 | 2014-06-18 | 深圳市卓茂科技有限公司 | High-precision full-automatic BGA repair workbench |
-
2011
- 2011-11-15 CN CN2011103604635A patent/CN103108113A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103593121A (en) * | 2013-10-08 | 2014-02-19 | 清华大学深圳研究生院 | One-fourth-screen display method used for visual aligning between chip pin and welding disc |
| CN103593121B (en) * | 2013-10-08 | 2016-08-17 | 清华大学深圳研究生院 | For four multi-screen display methods of visual-alignment between chip pin and pad |
| CN103874343A (en) * | 2014-04-04 | 2014-06-18 | 深圳市卓茂科技有限公司 | High-precision full-automatic BGA repair workbench |
| CN103874343B (en) * | 2014-04-04 | 2017-02-15 | 深圳市卓茂科技有限公司 | High-precision full-automatic BGA repair workbench |
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Application publication date: 20130515 |