CN1226698C - Miniature optical combination apparatus - Google Patents
Miniature optical combination apparatus Download PDFInfo
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- CN1226698C CN1226698C CN 02152985 CN02152985A CN1226698C CN 1226698 C CN1226698 C CN 1226698C CN 02152985 CN02152985 CN 02152985 CN 02152985 A CN02152985 A CN 02152985A CN 1226698 C CN1226698 C CN 1226698C
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Abstract
The present invention relates to a miniature optical combination device which comprises a packaging assembly, a light emitting assembly, a sensing assembly, a light guiding assembly and a lens, wherein the packaging assembly comprises a first compartment and a second compartment. The first compartment is provided with a first open hole, and the second compartment is provided with the second open hole. The light emitting assembly is fixedly arranged in the first compartment, and the light guiding assembly is fixedly arranged at the first open hole. The sensing assembly is fixedly arranged in the second compartment, and the lens is fixedly arranged at the second open hole. Rays can be emitted through the first open hole, be reflected by a body surface and then be received through the second open hole.
Description
Technical field
The present invention relates to a kind of optical combination device, particularly relate to a kind of optical combination device of microminiaturization, it is applicable to a body surface, by the present invention can provide a volume less, can improve precision and can reduce the optical combination device of assembly cost.
Background technology
Flourish along with the progress of photoelectricity science and technology and computerized information industry, the product in appliance computer science and technology and optical communication field is increasing, the progress that is accompanied by personal computer and peripheral commodity is with universal, wherein as the computer peripheral device that above-mentioned product more being found in, or in the middle of the general consumption electronic products.
Existing product with applied optics principle and detection technology is an example, as well known optical mouse, optical pen ..., all be the successful Application of utilizing above-mentioned optical correlation technology.Yet along with requiring to increase day by day for product functionality, and ordinary consumer is to the microminiaturized market demand of small product size trend, need consider that again general user strengthens day by day for the preference of portable commodity, so more need to be made great efforts towards light, thin, short, little direction for these type of commodity, also thus how can improve with degree of accuracy, assembling flow path is simpler and easy and can reduce cost, the real target of being pursued during for this type of new product of exploitation.
With aforesaid optical mouse and optical pen, if the size of this series products can be dwindled, the user promptly can more conveniently carry, and the device that easier use is above-mentioned, again because so can improve maneuverability when using, so more can satisfy general user, or for the higher user demand of space requirement as notebook.So the present invention will reach, be to realize that volume and the space that these type of commodity are shared dwindles, to reach the purpose of a microminiaturization.
Take a broad view of many now optical communications and computerized information product, as the optical module that all has of optical mouse or optical pen inside (as lens, sensor, photoconduction mechanism ...), can utilize various multi-form encapsulation (package) technology to be packed mostly, yet existing mode is taked individually to pack more, at last again with each combination of components on identical product.But, along with the raising on functional of the variation of product and product, will cause inner spare part with increasing; Therefore, under the situation about compressing day by day in the space, the internal optics assembly was taked the mode of individual package in the past, certainly will also develop with modular direction slowly tending to a kind of integration.
The present invention is based on above-mentioned motivation, improved for the optics combined mechanism in the existing optical mouse, utilize unique optical facilities design of an innovation and the high conformability of tool, provide that a volume is littler, cost is lower and can avoid problems such as location and focusing, the while can be improved the microminiaturized optical combination device of precision.
In the structure of existing optical mouse, generally all has a luminescence component, one leaded light component, one lens and a sensing component, the next device that moves as sensitive mouse, with as above optical facilities is example, generally by a light emitting diode (Light Emitting Diode, LED) as above-mentioned luminescence component, and can produce a light signal, after this light signal sees through above-mentioned leaded light component directing light to a specific direction, reflection through a body surface, and via lens with the reflection light signal be directed to above-mentioned sensing component, last this sensing component that utilizes again is converted to moving direction and the speed of an electronic signal with the differentiation optical mouse with light signal, and the result is sent in an external circuit or the computer system.
Yet, in existing optical facilities, aforesaid each optical module mostly is individually independently spare part, when assembling, product again it is combined at last, degree of difficulty when so causing assembling easily, again because above-mentioned assembly is not to be fixed in the same mechanism, so can be easy to generate the location when assembling is difficult for, and cause problems such as scale error easily, especially optical facilities often have the requirement of focal length accuracy, the deviation of location and size usually influences the key factor of properties of product again, and therefore existing optical facilities are difficult to accomplish microminiaturization more, and have problem points as above.
At first see also Fig. 1, the figure shows the optical facilities synoptic diagram of an existing optical pen inside.
As shown in the figure, this optical pen 1 is applicable to a body surface 2, receives the light signal that reflects through body surface 2 by this sensing component 6, to learn the displacement of this optical pen 1 with respect to this body surface 2.
Wherein, the operating principle of this optical pen 1 as a light source, and can send a light signal (shown in the arrow of Fig. 1) via a light emitting diode 3, and can be through a light-guiding mechanism 4; As shown in the figure, wherein this light-guiding mechanism 4 comprises one first leaded light component 41 and one second leaded light component 42, after above-mentioned light is launched by light emitting diode 3, pass through this first leaded light component 41 and second leaded light component 42 in regular turn, again in addition can be in this process via reflection or other additional leaded light component, revised and guide the direct of travel of light, but this purpose is main light is guided on the body surface 2 under these lens 5, is beneficial to the reception of this sensing component 6.
And for example shown in Fig. 1, the top of these lens 5 is provided with a sensing component 6 in addition, the light signal of lens below can be directed to this sensing component 6 by these lens 5, makes this sensing component 6 can effectively capture the light signal that reflects through body surface 2.
Yet, aforesaid optical facilities design, the optical module of its optical pen 1 inside such as light emitting diode 3, light-guiding mechanism 4, lens 5 and sensing component 6 all are independent the setting, the last inside that is assembled in this optical pen 1 more together, so configuration not only needs the space requirement of certain degree, and be difficult to reach reduced volume and microminiaturized purpose, in addition because each inter-module distance is far away, do not consider the design of conformability, therefore structurally comparatively loose, also can't improve the sensitivity and the precision of location simultaneously.
Then please consult Fig. 2 again, Fig. 2 represents to commonly use the optical facilities synoptic diagram of optical mouse inside.Wherein, these optical facilities comprise a package component 11, the IC circuit packing structure of its utilization one existing lead frame (Lead Frame) form, and this package component 11 still comprises a plurality of pins 14 again, in order to connect extraneous circuit or computer system.
As shown in the figure, these optical facilities utilize a sensor chip 12 as its sensing component, and this sensor chip 12 is fixedly arranged in one first compartment 11 ' in the package component 11, and by the above-mentioned pin 14 of lead 12 ' connection, thus that sensor chip is received signal is communicated in external circuit or the computer system.
In above-mentioned existing optical facilities, send light signal by a light emitting diode 7, through a light-guiding mechanism 8, and after the reflection through a body surface 9, be sent to this sensor chip 12 through lens 10.Yet by finding in the icon that this leaded light component 8 and lens 10 all are fixedly arranged in the same structure, the size of sensing component has been reduced to the size of a chip again, so as above mechanism can reach the less purpose of assembling volume.
Therefore, the present invention is based on the above-mentioned existing optical facilities that are applied to optical mouse, and above-mentioned optical facilities are done one improve, and propose a novel optical composite set littler than existing structure volume.
Summary of the invention
The object of the present invention is to provide a kind of optical combination device of microminiaturization, to address the above problem.
The object of the present invention is achieved like this, and a kind of optical devices promptly are provided, and is applicable to a body surface, comprising: a package component, be fixedly arranged on the inside of these optical devices, and this package component comprises one first compartment and one second compartment; Wherein, this first compartment is provided with one first perforate, and this second compartment is provided with one second perforate; One luminescence component is fixedly arranged in this first compartment, the light that this luminescence component sent can see through this first perforate to this package component this body surface and be reflected; One sensing component is fixedly arranged in this second compartment, and this sensing component can receive the above-mentioned light that is reflected by this second perforate; One leaded light component is fixedly arranged on this package component, and is positioned at the first above-mentioned tapping, to guide above-mentioned light to one specific direction; And lens, be fixedly arranged on the second above-mentioned tapping, to guide above-mentioned light to this sensing component.
The present invention also provides a kind of optical devices, is applicable to a body surface, comprising: a package component, be fixedly arranged on the inside of these optical devices, and this package component comprises one first compartment and one second compartment; Wherein, this first compartment below is provided with one first perforate, and this second compartment is provided with one second perforate, and this first compartment top is provided with one the 3rd perforate; One luminescence component is fixedly arranged on above-mentioned the 3rd tapping, and the light that this luminescence component sent can be reflected by this first perforate this body surface to this package component again; One sensing component is fixedly arranged in this second compartment, and this sensing component can receive the above-mentioned light that is reflected by this second perforate again; One leaded light component is fixedly arranged on this package component, and is positioned at the first above-mentioned tapping, with guide above-mentioned light to one specific direction and; One lens are fixedly arranged on the second above-mentioned tapping, to guide above-mentioned light to this sensing component.
Furtherly, the optical combination device of microminiaturization of the present invention, utilization is integrated in each assembly in this optical combination device on one package component, and luminescence component and sensing component are fixedly arranged on one first compartment and one second compartment in this package component respectively; And,, and make this sensing component can receive the light that reflects via this body surface so that luminescence component can emit beam to a body surface by the perforate on this first compartment and this second compartment.
As mentioned above, because of the present invention is incorporated into each assembly in this optical combination device on one package component, so can reduce existing shared volume and the space of optical devices effectively, all be installed on the package component by each assembly in addition, location in the time of can avoiding assembling and focusing problem are so can improve the precision of this device.Again,, but not adopt indivedual assemblings, can increase the intensity of its structure, and minimizing causes the change of inter-module relative position because of external force or collision because above-mentioned assembly all is integrated in the same package body.
In addition, because the conformability height, so can reduce the number of spare part and the time and the cost of assembling, so the optical combination device that the present invention can provide a volume microminiaturization, can improve precision and can reduce cost.
Description of drawings
Fig. 1 is the optical facilities synoptic diagram of existing optical pen inside;
Fig. 2 is the optical facilities synoptic diagram of existing optical mouse inside;
Fig. 3 is the optical facilities synoptic diagram of first embodiment of the invention;
Fig. 4 is a leaded light component synoptic diagram of the present invention;
Fig. 5 is the optical facilities synoptic diagram of second embodiment of the invention.
Embodiment
See also Fig. 3, this figure is the optical facilities synoptic diagram of first embodiment of the invention.As shown in the figure, the present invention includes a light emitting diode 15, a leaded light component 16, a body surface 17, lens 18, a sensor chip 19 and a package component 20.
Wherein, package component 20 of the present invention utilizes the IC circuit packing structure of existing lead frame (Lead Frame) form to form.In addition, characteristics of the present invention are that this package assembling 20 comprises one first compartment 201 and one second compartment 202.Again, the first above-mentioned compartment 201 comprises one first perforate 201 ', and the second above-mentioned compartment 202 comprises one second perforate 202 '.
Again, above-mentioned light emitting diode 15 is a naked crystal grain, and (Surface-Mount Technology SMT) is fixedly arranged in this first compartment 201, and this leaded light component 16 is fixedly arranged in this first perforate 201 ' in addition can to adopt a surface mount technology; And this sensor chip 19 is fixedly arranged in this second compartment 202, and these lens 18 are fixedly arranged in this second perforate 202 '.
As previously mentioned, the light that is sent via light emitting diode 15 is directed to body surface 17 places under these lens 18 through a light-guiding mechanism 16.See also shown in Fig. 4, the arrow among this figure is represented the direction that light is advanced again.Wherein, this leaded light component 16 has a convex surface 161 and a reflecting surface 162, the light that this light emitting diode 15 sends enters this leaded light component 16 via this convex surface 161, wherein this convex surface 161 has the light of receipts and guides the effect of this light to this reflecting surface 162, its purpose is light in the active set, and reduces loss and the decay that causes light signal to be caused in transmittance process because of scattering.
Behind the convex surface 161 in the above-mentioned leaded light component 16 of light process, it is this reflecting surface 162 of directive, this light leaves this leaded light component 16 by specific reflection angle by 162 reflections of this reflecting surface again, and directive body surface 17 places under these lens 18 as mentioned above.Therefore, this leaded light component 16 not only can effectively be introduced the light that this light emitting diode 15 is sent, avoid the attenuation or loss of light signal, in addition still can be by body surface 17 places of this leaded light component 16 these light of guiding to these lens 18, be beneficial to the light signal of these sensor chip 19 fechtables after via body surface 17 reflections.
So, microminiaturized optics combined mechanism of the present invention utilizes this light emitting diode 51 to emit beam, via body surface 17 places of these leaded light component 16 these light of guiding to these lens 18 belows, and these lens 18 can be directed to this sensor chip 19 with the light signal of its below after these body surface 17 reflections, this sensor chip 19 can be according to received light signal thus, be converted to-electronic signal, and, sensor chip 19 received signals are sent in external circuit or the computer system via the lead 19 ' that conducts with this each pin 21.
Because the present invention passes through in conjunction with each optical module the shared volume of these optical facilities to be reduced effectively on the structure of a package component; And by this device, it is higher that the location of each inter-module can reach precision, and can improve the sensitivity of these optical facilities; In addition, only need to share same package component, therefore save complicated in the past package program and cost, thus the present invention can provide a volume littler, can improve precision and can reduce the microminiaturized optical combination device of assembly cost.
Then see also Fig. 5 again, wherein the figure shows the synoptic diagram of the second embodiment of the present invention.This embodiment comprises a light emitting diode 22, a leaded light component 23, a body surface 24, lens 25, a fixing structure 26, a sensor chip 27 and a package component 28.
As shown in the figure, package component 28 of the present invention utilizes the IC circuit packing structure of existing lead frame (Lead Frame) form to form.This package component 28 is provided with one first compartment 281 and one second compartment 282, wherein this first compartment 281 below be provided with one first perforate 281 ', and be provided with one the 3rd perforate 22 ' up; Again, this second compartment below be provided with one second perforate 282 '.In the present embodiment, a sensor chip 27 is fixedly arranged in this second compartment, and utilizes lead 27 ' to connect pin 29 on this package component 28, with the signal of sensor chip 27 gained, is sent in an external circuit or the computer system via pin 29 thus.
In the present embodiment, this dress diode 22 can be general light-emitting diode component through packing, and is fixedly arranged in the 3rd perforate 22 '; This leaded light component 23 is fixedly arranged in this first perforate 281 ' again.Wherein different is with above-mentioned first embodiment, when these lens 25 need long focal length to require with respect to this sensor chip 27, present embodiment utilizes a fixing structure 26, wherein this fixing structure 26 is provided with a perforate 26 ', these lens 25 can be fixedly arranged in this perforate 26 ', can this lens 25 be set the suitable distance below this sensor chip 27 thus.
So, above-mentioned optical facilities are by this light emitting diode 22 emissions one light signal, via body surface 24 places of this leaded light component 23 these light of guiding to these lens 25, and these lens 25 can be guided the light signal of its below after 24 reflections of this body surface, pass this second perforate 282 ' and arrive this sensor chip 27.This sensor chip 27 can be converted to an electronic signal with received light signal thus, and via the lead 27 ' that conducts with this each pin 29, sensor chip 27 received signals is sent in external circuit or the computer system.
In the disclosed microminiaturized optical combination device, wherein this luminescence component can be complied with different demands, adopts a surface mount mode, perhaps is fixedly arranged in the 3rd perforate 22 ' of above-mentioned first compartment 281 tops; In addition, for cooperating the requirement of different focal, these lens 25 also can adopt the perforate 26 ' that is fixedly arranged in the fixing structure 26, thus to guarantee that these lens 25 to this sensor chip 27 can have a suitable distance.
In sum, the present invention passes through to integrate different optical modules on a package component, compares with existing optical facilities to have the more advantage of small size, so can be applicable to as on the portable electronic product.In addition, because each assembly all is fixedly arranged on a structure, not only can improves locating accuracy and sensitivity, and can improve the intensity of structure, more can save the time and the cost of assembling, be one to have the invention of progressive in fact.
Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art still can do some and change and retouching, so protection scope of the present invention should be with being as the criterion that claim was defined without departing from the spirit and scope of the present invention.
Claims (8)
1. optical devices are applicable to a body surface, comprising:
One package component is fixedly arranged on the inside of these optical devices, and this package component comprises one first compartment and one second compartment; Wherein, this first compartment is provided with one first perforate, and this second compartment is provided with one second perforate;
One luminescence component is fixedly arranged in this first compartment, the light that this luminescence component sent can see through this first perforate to this package component this body surface and be reflected;
One sensing component is fixedly arranged in this second compartment, and this sensing component can receive the above-mentioned light that is reflected by this second perforate;
One leaded light component is fixedly arranged on this package component, and is positioned at the first above-mentioned tapping, to guide above-mentioned light to one specific direction; And
One lens are fixedly arranged on the second above-mentioned tapping, to guide above-mentioned light to this sensing component.
2. optical devices as claimed in claim 1, wherein these optical devices also comprise lens and a fixing structure, and wherein this fixing structure comprises a perforate, and these lens are fixedly arranged on this tapping.
3. optical devices as claimed in claim 1, wherein this luminescence component is the LED crystal particle of a surface attachment.
4. optical devices as claimed in claim 1, wherein these optical devices are an optical mouse.
5. optical devices are applicable to a body surface, comprising:
One package component is fixedly arranged on the inside of these optical devices, and this package component comprises one first compartment and one second compartment; Wherein, this first compartment below is provided with one first perforate, and this second compartment is provided with one second perforate, and this first compartment top is provided with one the 3rd perforate;
One luminescence component is fixedly arranged on above-mentioned the 3rd tapping, and the light that this luminescence component sent can be reflected by this first perforate this body surface to this package component again;
One sensing component is fixedly arranged in this second compartment, and this sensing component can receive the above-mentioned light that is reflected by this second perforate again;
One leaded light component is fixedly arranged on this package component, and is positioned at the first above-mentioned tapping, to guide above-mentioned light to one specific direction; And
One lens are fixedly arranged on the second above-mentioned tapping, to guide above-mentioned light to this sensing component.
6. optical devices as claimed in claim 5, wherein these optical devices also comprise lens and a fixing structure, and wherein this fixing structure comprises a perforate, and these lens are fixedly arranged on this tapping.
7. optical devices as claimed in claim 5, wherein this luminescence component is the light emitting diode after packing.
8. optical devices as claimed in claim 5, wherein these optical devices are an optical mouse.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02152985 CN1226698C (en) | 2002-11-29 | 2002-11-29 | Miniature optical combination apparatus |
| US10/628,438 US7050043B2 (en) | 2002-09-02 | 2003-07-29 | Optical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02152985 CN1226698C (en) | 2002-11-29 | 2002-11-29 | Miniature optical combination apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1504952A CN1504952A (en) | 2004-06-16 |
| CN1226698C true CN1226698C (en) | 2005-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02152985 Expired - Fee Related CN1226698C (en) | 2002-09-02 | 2002-11-29 | Miniature optical combination apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1226698C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7568819B2 (en) | 2006-06-07 | 2009-08-04 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Utilizing an internal reflection surface to reflect and collimate sidelight in an optical navigation device |
| CN103545322A (en) * | 2012-07-13 | 2014-01-29 | 原相科技股份有限公司 | Embedded non-lens light-transmitting packaged optic device |
| CN104978052B (en) * | 2014-04-10 | 2018-03-27 | 原相科技股份有限公司 | The electronic installation of high electrostatic protection |
-
2002
- 2002-11-29 CN CN 02152985 patent/CN1226698C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1504952A (en) | 2004-06-16 |
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Owner name: GLOBAL LED SOLUTIONS COMPANY Free format text: FORMER OWNER: YUANXIANG SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20140728 |
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