CN202734969U - Infrared detector integrated optical encapsulation structure - Google Patents
Infrared detector integrated optical encapsulation structure Download PDFInfo
- Publication number
- CN202734969U CN202734969U CN201220402733.4U CN201220402733U CN202734969U CN 202734969 U CN202734969 U CN 202734969U CN 201220402733 U CN201220402733 U CN 201220402733U CN 202734969 U CN202734969 U CN 202734969U
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- infrared
- infrared detector
- encapsulation
- optical window
- lens
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Abstract
The utility model discloses an infrared detector integrated optical encapsulation structure and belongs to the field of infrared detectors. The infrared detector integrated optical encapsulation structure comprises an encapsulation shell body and an optical window fixed on the encapsulation shell body, wherein a refrigeration mechanism and an infrared detector chip are arranged in the encapsulation shell body, the infrared detector chip is connected with a signal leading-out terminal, and one end of the signal leading-out terminal penetrates through the encapsulation shell body to be connected with a peripheral circuit. The optical window is a convex lens. According to the infrared detector integrated optical encapsulation structure, the function of an optical window and the function of an infrared lens in a conventional infrared detector working manner are degenerated into a whole. The encapsulation manner has the advantages of being compact in structure and low in cost. Meanwhile, as reflectors are reduced, infrared signals received by devices are greatly enhanced, and performance of the devices is greatly improved.
Description
Technical field
The utility model belongs to the infrared eye field, is specifically related to a kind of infrared eye integrated optics encapsulating structure.
Background technology
Refrigeration mode and non-refrigeration type infrared eye all need to do Vacuum Package usually, and the refrigeration mode Vacuum Package is in order to reduce the heat dissipation of refrigeration machine, reduce the energy consumption of complete machine, and non-refrigeration type is in order to reduce the convection heat losses of device, to improve device performance.Two kinds of infrared eyes all are by accepting infrared signal and infrared signal being changed into electric signal, processing by peripheral circuit realizes the explorer imaging of infrared signal, both need to reserve the infrared signal optical window for infrared eye when doing Vacuum Package, so that detector can work, namely need to be at plane optical window of the device front of Vacuum Package high-air-tightness sealing-in.And in device when work, also need the infrared signal of scene to be collected on the detector for it is equipped with infrared optical lens, makes the infrared eye can be to surveying infrared signal and the imaging of scene.That is to say in order to guarantee the normal operation of device, device need to have a plane optical window and an Infrared Lens system, this common practice has two drawbacks, one, two optical elements have certain reflectivity, common reflectivity separately is 10%～20%, and the loss of total infrared signal is about 20%～35%, and this is very large loss for device performance.Its two, device settles two optical elements to cause the volume of device to increase, and is unfavorable for the miniaturization of system.
Summary of the invention
The technical problems to be solved in the utility model is the large and huger problem of volume of the existing infrared eye integrated optics encapsulating structure loss of signal.
The technical solution of the utility model is: a kind of infrared eye integrated optics encapsulating structure, it comprises encapsulating housing, is fixed on the optical window on the encapsulating housing, be provided with refrigeration mechanism and infrared detector chip in the encapsulating housing, be connected with the signal leading-out terminal on the described infrared detecting chip, the signal leading-out terminal passes encapsulating housing and is used for being connected with peripheral circuit, and described optical window is convex lens.
Further, described convex lens can adopt spherical lens or non-spherical lens.
The utility model compared with prior art has following advantage:
The function degeneracy of optical window and Infrared Lens in the infrared eye working method of routine is integral.This packaged type has compact conformation, the advantage that cost is low, owing to reduce the infrared optics reflecting surface, the infrared signal that device receives improves greatly simultaneously, and device performance also can greatly promote.
Description of drawings
Fig. 1 is infrared eye integrated optics encapsulating structure synoptic diagram of the prior art;
Fig. 2 is infrared eye integrated optics encapsulating structure synoptic diagram of the present utility model.
Wherein, Reference numeral is respectively: 1 encapsulating housing, 2 optical windows, 3 refrigeration mechanisms, 4 infrared detector chips, 5 signal leading-out terminals, 6 Infrared Lens.
Embodiment
Infrared eye is that faint infrared signal is outputed to peripheral circuit through the electric signal that changes into of infrared sensor chip, realizes detection and the imaging of infrared signal through the processing of peripheral circuit.Infrared eye need to be encapsulated in the airtight housing, also needs simultaneously to reserve for detector the window of accepting of infrared signal.
As shown in Figure 1, in the prior art, encapsulating housing 1 and optical window 2 form high airtight device working environment, and what optical window 2 adopted is the lens on a plane, and signal leading-out terminal 3 is drawn out to external circuit with the signal of infrared detector chip 4; Refrigeration mechanism 3 provides temperature environment for detector work in the closed environment, infrared signal focuses on through Infrared Lens 5, project on the infrared detector chip 4 through optical window 2 again, infrared detector chip 4 changes into electric signal with infrared signal, through signal leading-out terminal 5 signal is drawn, at the infrared image that obtains the visual field through external circuit.
As shown in Figure 2, a kind of infrared eye integrated optics encapsulating structure, refrigeration mechanism 3, infrared detector chip 4 are fixed in the encapsulating housing 1, signal leading-out terminal 5 is connected with infrared detector chip 4 and passes encapsulating housing 1 and is used for being connected with peripheral circuit, then with optical window 2 and encapsulating housing 1 Vacuum Package, optical window 2 adopts convex lens, and convex lens can adopt spherical lens or non-spherical lens.
Comparing with the structure of prior art, mainly is to change the optical window 2 that the lens on existing plane are made into convex lens, thereby no longer needs to arrange Infrared Lens 6.The utility model is integral the function degeneracy of optical window 2 and Infrared Lens 6 in the infrared eye working method of routine.This packaged type has compact conformation, the advantage that cost is low, owing to reduce reflecting surface, the infrared signal that device receives improves greatly simultaneously, and device performance also can greatly promote.
Claims (2)
1. infrared eye integrated optics encapsulating structure, it comprises encapsulating housing, is fixed on the optical window on the encapsulating housing, be provided with refrigeration mechanism and infrared detector chip in the encapsulating housing, be connected with the signal leading-out terminal on the described infrared detecting chip, signal leading-out terminal one end passes encapsulating housing and is used for being connected with peripheral circuit, and it is characterized in that: described optical window is convex lens.
2. a kind of infrared eye integrated optics encapsulating structure according to claim 1, it is characterized in that: described convex lens are spherical lens or non-spherical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220402733.4U CN202734969U (en) | 2012-08-15 | 2012-08-15 | Infrared detector integrated optical encapsulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220402733.4U CN202734969U (en) | 2012-08-15 | 2012-08-15 | Infrared detector integrated optical encapsulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734969U true CN202734969U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220402733.4U Expired - Lifetime CN202734969U (en) | 2012-08-15 | 2012-08-15 | Infrared detector integrated optical encapsulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734969U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778297A (en) * | 2012-08-15 | 2012-11-14 | 电子科技大学 | Integrated optical packaging structure of infrared detector |
| CN104310300A (en) * | 2014-09-23 | 2015-01-28 | 杭州大立微电子有限公司 | Infrared detector integrated with pixel-level condensing lenses and preparation method thereof |
| CN105318973A (en) * | 2015-11-13 | 2016-02-10 | 深圳通感微电子有限公司 | A self-focusing lens thermopile sensor and an assembly process therefor |
-
2012
- 2012-08-15 CN CN201220402733.4U patent/CN202734969U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778297A (en) * | 2012-08-15 | 2012-11-14 | 电子科技大学 | Integrated optical packaging structure of infrared detector |
| CN104310300A (en) * | 2014-09-23 | 2015-01-28 | 杭州大立微电子有限公司 | Infrared detector integrated with pixel-level condensing lenses and preparation method thereof |
| CN105318973A (en) * | 2015-11-13 | 2016-02-10 | 深圳通感微电子有限公司 | A self-focusing lens thermopile sensor and an assembly process therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |