CN202472015U - Dimmer sheet for electronic total-station instrument - Google Patents
Dimmer sheet for electronic total-station instrument Download PDFInfo
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- CN202472015U CN202472015U CN2012200666733U CN201220066673U CN202472015U CN 202472015 U CN202472015 U CN 202472015U CN 2012200666733 U CN2012200666733 U CN 2012200666733U CN 201220066673 U CN201220066673 U CN 201220066673U CN 202472015 U CN202472015 U CN 202472015U
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- shading region
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Abstract
The utility model discloses a dimmer sheet for an electronic total-station instrument. The dimmer sheet is mounted on the optical axis of a total-station instrument emission light path and is provided with a circular body, wherein an outer light shading region and an inner light shading region both in a circular spiral shape are arranged on the body; the outer light shading region and the inner light shading region are both coated to be black; a light-transmitting region is formed between the outer light shading region and the inner light shading region; the width of the beginning ends of the outer light shading region and the inner light shading region is gradually increased toward the tail ends, correspondingly, the width of the beginning end of the light-transmitting region is gradually reduced towards the tail end. The dimmer sheet disclosed by the utility model uses a new dimming principle, the light dimming region is in a total black or total white structure, so that no diffractions are generated when laser passes through the all-white light-transmitting region, the light intensity of light spots is uniform after the laser passes through the region, the phenomenon that the brightness is not uniform does not exist, and simultaneously, the dimmer sheet in the structure is easy to manufacture, low in cost and relatively practical.
Description
Technical field
The utility model relates to field of measuring technique, especially a kind of light damping plate that is used for electronic total station.
Background technology
In electronic total station; The effect of light damping plate is exactly according to the measurement needs, reduces the power of the laser that is passed through, and realizes that this function mainly contains two approach: the one, and the light intensity of the laser that reduction is passed through; Be the light intensity of overall attenuation laser, as plate the decay film of different transmitances; The second way is the size that changes laser facula, promptly controls the power of laser through the size of control hot spot.The light damping plate that generally uses at present is on light damping plate, to divide multiple different zone, and each regional transmitance is different, when light damping plate pivots like this, can realize the effect of dim light.The problem that the light damping plate of this structure exists is: all be made up of the black-white point of different numbers in the zones of different, this has just formed different transmitances.Diffraction phenomena can occur after laser is got on the light damping plate, have the bright spot of a plurality of diffraction around the outgoing hot spot, these bright spots can produce certain interference after the receiving system that turns back to instrument through the irradiation thing, thereby have influenced the measurement of data.When the laser facula on inciding light damping plate is big, can cover several dim lights zone simultaneously, the brightness of the laser facula after the outgoing is just inhomogeneous like this, can influence the precision of measurement after the receiving system of such hot spot through irradiation thing reflection meeting instrument equally.Certainly also have and adopt advanced manufacture craft, can make the light damping plate of not assorted point, but such cost of manufacture is high, and fabrication cycle is longer.
The utility model content
The technical matters that the utility model will solve is: overcome the deficiency in the prior art, provide a kind of light intensity evenly, make the used light damping plate of simple electronic total station.
The utility model solves the technical scheme that its technical matters adopted: the used light damping plate of a kind of electronic total station; Be installed on the optical axis of total powerstation emission light path; Have circular body, have the outer shading region and the interior shading region that are the toroidal helical shape on the body, the equal painted black shape of outer shading region and interior shading region; Form photic zone between outer shading region and the interior shading region; The width terminad direction of outer shading region and interior shading region initiating terminal broadens gradually, and correspondingly, the width terminad direction of photic zone initiating terminal narrows down gradually.
The toroidal helical direction of described outer shading region and interior shading region is counterclockwise.
The beneficial effect of the utility model is: the dim light zone of the utility model except complete black be exactly complete white, can not there be the condition that produces diffraction in laser during through photic zone, making simply, and is convenient and swift; The light intensity of the hot spot after laser passes through is even, does not have the phenomenon of bright dark inequality.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model.
Shading region 4. photic zones in 1. bodies, the 2. outer shading regions 3. among the figure
Embodiment
Combine accompanying drawing that the utility model is further described now.The synoptic diagram that these accompanying drawings are simplification is only explained the basic structure of the utility model in a schematic way, so it only shows the formation relevant with the utility model.
The used light damping plate of a kind of electronic total station as shown in Figure 1; Be installed on the optical axis of total powerstation emission light path; Process by the clear films sheet; Have circular body 1, have the outer shading region 2 and interior shading region 3 that are the toroidal helical shape on the body 1, the toroidal helical direction of described outer shading region 2 and interior shading region 3 is counterclockwise.Outer shading region 2 and interior shading region 3 equal painted black shapes; Form photic zone 4 between outer shading region 2 and the interior shading region 3; The width terminad direction of outer shading region 2 and interior shading region 3 initiating terminals broadens gradually, and correspondingly, the width terminad direction of photic zone 4 initiating terminals narrows down gradually.
During use, laser gets into directive distant place measured target from photic zone 4 initiating terminals of light damping plate, and according to the distance of measured target distance, we can regulate the light intensity of the laser that penetrates, and rotate light damping plate gradually, make laser from photic zone 4 through penetrating.At initiating terminal, the light intensity of laser is the strongest, and along with photic zone 4 width narrow gradually, the laser part of ejaculation is blocked, and the light intensity of photic zone 4 terminal laser is minimum, thereby realizes the purpose of decay laser intensity.When measuring distant object, laser penetrates from photic zone 4 the wideest places; When measuring nearby target, laser penetrates from the narrower place of photic zone 4 width.
The utility model has adopted new dim light principle, the dim light zone is done help black, complete white structure, makes laser can not have the condition that produces diffraction when passing through white full photic zone 4; The light intensity of the hot spot after laser passes through is even; The phenomenon that does not have bright dark inequality, the light damping plate of this structure is made simple simultaneously; Reduce cost, also practical.
Above-mentioned embodiment is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage that is familiar with this technology can understand the content of the utility model and implements; Can not limit the protection domain of the utility model with this; All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the utility model.
Claims (2)
1. used light damping plate of electronic total station; Be installed on the optical axis of total powerstation emission light path; Have circular body (1), it is characterized in that: have the outer shading region (2) and the interior shading region (3) that are the toroidal helical shape on the body (1), outer shading region (2) and interior shading region (3) be the painted black shape all; Form photic zone (4) between outer shading region (2) and the interior shading region (3); The width terminad direction of outer shading region (2) and interior shading region (3) initiating terminal broadens gradually, and correspondingly, the width terminad direction of photic zone (4) initiating terminal narrows down gradually.
2. the used light damping plate of electronic total station according to claim 1 is characterized in that: the toroidal helical direction of described outer shading region (2) and interior shading region (3) is counterclockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200666733U CN202472015U (en) | 2012-02-27 | 2012-02-27 | Dimmer sheet for electronic total-station instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200666733U CN202472015U (en) | 2012-02-27 | 2012-02-27 | Dimmer sheet for electronic total-station instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202472015U true CN202472015U (en) | 2012-10-03 |
Family
ID=46920166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200666733U Expired - Fee Related CN202472015U (en) | 2012-02-27 | 2012-02-27 | Dimmer sheet for electronic total-station instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202472015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972555A (en) * | 2016-07-25 | 2016-09-28 | 广州彩熠灯光有限公司 | Linear episcotister and stage lamp |
| CN107621445A (en) * | 2017-10-20 | 2018-01-23 | 河南海瑞正检测技术有限公司 | Physical purity of seed detection means |
-
2012
- 2012-02-27 CN CN2012200666733U patent/CN202472015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972555A (en) * | 2016-07-25 | 2016-09-28 | 广州彩熠灯光有限公司 | Linear episcotister and stage lamp |
| CN107621445A (en) * | 2017-10-20 | 2018-01-23 | 河南海瑞正检测技术有限公司 | Physical purity of seed detection means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130227 |