CN203981976U - A kind of back lighting device - Google Patents
A kind of back lighting device Download PDFInfo
- Publication number
- CN203981976U CN203981976U CN201420276050.8U CN201420276050U CN203981976U CN 203981976 U CN203981976 U CN 203981976U CN 201420276050 U CN201420276050 U CN 201420276050U CN 203981976 U CN203981976 U CN 203981976U
- Authority
- CN
- China
- Prior art keywords
- lighting device
- back lighting
- transmissive mirror
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model provides a kind of back lighting device, comprises the barrel-shaped carriage of a hollow, and described carriage cross section is rectangle, in described carriage, be provided with a luminescence unit, described carriage upper end is equipped with a transmissive mirror, and described transmissive mirror is provided with two mobile clamping plate, improve efficiency, reduced cost.
Description
Technical field
The utility model relates to a kind of back lighting device.
Background technology
In prior art, when whether testing circuit plate is qualified, observes circuit board cut into slices and determine that whether product is qualified by metaloscope, this detection method efficiency is lower, and does not need so high degree of accuracy, cost of idleness in some fields.
Summary of the invention
The technical problems to be solved in the utility model, is to provide a kind of back lighting device, has improved efficiency, has reduced cost.
The utility model is achieved in that a kind of back lighting device, comprise the barrel-shaped carriage of a hollow, described carriage cross section is rectangle, is provided with a luminescence unit in described carriage, described carriage upper end is equipped with a transmissive mirror, and described transmissive mirror is provided with two mobile clamping plate.
Further, described transmissive mirror is detachable transmissive mirror.
Further, described carriage is light tight.
Further, described carriage is provided with a plurality of louvres.
The utility model has the advantage of: a kind of back lighting device of the utility model, use simple and easyly, cost is low, and any workman can learn its using method fast, has improved efficiency.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.
Fig. 1 is a kind of back lighting device structural representation of the utility model one figure.
Fig. 2 is a kind of back lighting device structural representation of the utility model two figure.
Embodiment
Refer to shown in Fig. 1 and Fig. 2, back lighting device of the present invention, comprise the barrel-shaped carriage 1 of a hollow, described carriage 1 cross section is rectangle, and described carriage 1 is light tight, described carriage 1 is provided with a plurality of louvres 12, in described carriage 1, be provided with a luminescence unit 11, the light that described luminescence unit 11 sends is white, and described carriage 1 upper end is provided with a transmissive mirror 2, described transmissive mirror 2 is detachable transmissive mirror, and described transmissive mirror 2 is provided with two mobile clamping plate 21.
Use the utility model back lighting device, first access power supply, open luminescence unit 11, afterwards circuit board section is positioned in transmissive mirror 2, in seam mark 3 between two mobile clamping plate 21, mobile two mobile clamping plate 21 are clamped section afterwards, i.e. whether the quality of observable section is qualified.
The utility model has the advantage of: a kind of back lighting device of the utility model, use simple and easyly, cost is low, and any workman can learn its using method fast, has improved efficiency.
Although more than described embodiment of the present utility model; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; instead of for the restriction to scope of the present utility model; those of ordinary skill in the art are in equivalent modification and the variation done according to spirit of the present utility model, all should be encompassed in the scope that claim of the present utility model protects.
Claims (4)
1. a back lighting device, is characterized in that: comprise the barrel-shaped carriage of a hollow, be provided with a luminescence unit in described carriage, described carriage upper end is provided with a transmissive mirror, and described transmissive mirror is provided with two mobile clamping plate.
2. a kind of back lighting device as claimed in claim 1, is characterized in that: described transmissive mirror is detachable transmissive mirror.
3. a kind of back lighting device as claimed in claim 1, is characterized in that: described carriage is light tight.
4. a kind of back lighting device as claimed in claim 2, is characterized in that: described carriage is provided with a plurality of louvres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276050.8U CN203981976U (en) | 2014-05-27 | 2014-05-27 | A kind of back lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276050.8U CN203981976U (en) | 2014-05-27 | 2014-05-27 | A kind of back lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203981976U true CN203981976U (en) | 2014-12-03 |
Family
ID=51979409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420276050.8U Expired - Fee Related CN203981976U (en) | 2014-05-27 | 2014-05-27 | A kind of back lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203981976U (en) |
-
2014
- 2014-05-27 CN CN201420276050.8U patent/CN203981976U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20160527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |