CN1844949A - Method for improving display brightness of laser distance measurer - Google Patents
Method for improving display brightness of laser distance measurer Download PDFInfo
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- CN1844949A CN1844949A CN 200510065467 CN200510065467A CN1844949A CN 1844949 A CN1844949 A CN 1844949A CN 200510065467 CN200510065467 CN 200510065467 CN 200510065467 A CN200510065467 A CN 200510065467A CN 1844949 A CN1844949 A CN 1844949A
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Abstract
The invention relates to a method for improving the display brightness of ranging laser. Wherein, the watching optical system of ranging laser comprises an object lens, an eye lens, a prism and a display element, while the object lens are used to collect the visible beam of object; the eye lens are used to watch the image of object and the ranging valve, while the object lens and the eye lens can form the light axis of said watching optical system; the prism is between the object and eye lens for transmitting the visible beam of object lens to the eye lens; and the display element is a organic lighting element with high light transmittance ratio to display the detected range valve, while it is mounted on the light axis to improve the display brightness of ranging laser.
Description
[technical field]
The present invention relates to a kind of improvement method of display brightness of laser distance measurer, refer to that especially a kind of observation optical system to laser range finder makes improvement to improve the method for its display brightness.
[background technology]
Common laser range finder all has a laser transmitting system, a laser receiver system and a telescopic system, wherein laser transmitting system is to send a laser beam by a generating laser towards an object, when this laser beam will be received by the laser pickoff of laser receiver system through after the reflection of object, by calculating the distance that just can draw between this laser range finder and the object.Telescopic system can be for user's run-home thing, and it generally includes objective lens group, eye lens group and the prism group between two mirror groups.But, when reality is used,, not only can cause the bulky of this laser range finder if each system of above-mentioned laser range finder all adopts independently optical axis and the required separately camera lens of outfit again, can make that also dysmetria is true.
The United States Patent (USP) the 6th that the applicant got permission before early, 441, the existing laser range finder that is disclosed for No. 887 just can address this problem, as shown in Figure 1, have an observation/optical transmitting system 91 and a receiving optics 92 by the existing laser range finder 90 that this patent disclosed, wherein receiving optics mainly is provided with a receiving element 98 and lens 99; Observation/optical transmitting system 91 has an objective lens group 93, a prism group 94, a radiated element 95, a display element 96 and an eye lens group 97; Utilize the refraction and the function of reflecting of prism group 94, can be so that before this prism group 94, form a mixed optical path, can allow looks in the distance observes the visible light beam of usefulness pass through, and can allow the laser beam of range finding usefulness pass through again, reduces the volume of laser range finder in this way.
When the user utilize above-mentioned laser range finder 90 to observe object and record the user and object between distance after, will utilize display element 96 range of a signal values.The display element 96 of this laser range finder 90 is a penetration liquid crystal panel (Liquid Crystal Display, LCD), it is located immediately at the location of horizon of this laser range finder 90, after visible light beam enters observation/optical transmitting system 91 and a series of mirror group of process, also will penetrate this liquid crystal panel just can make its generation brightness and show measured distance value, but can significantly reduce the amount of penetrating of light during because of the light penetration liquid crystal panel, therefore can influence the observation effect of data presentation effect and object.Especially in dark environment, measure object apart from the time, enter this observation/optical transmitting system 91 because of having only a small amount of light (visible light beam), thereby feasible being become by the shown data of penetrate through type liquid crystal display board is difficult to identification, even can't shows.
Existing laser range finder can also adopt another data display method, as shown in Figure 2, observation/the optical transmitting system 80 of this laser range finder has an objective lens group 81, one prism group 82, one radiated element 83, one display element 84 and an eye lens group 85, wherein display element 84 can be light emitting diode (Light Emitting Diode, LED), this display element 84 can be launched the light beam (narrow wavelength light beam) of specific wavelength, its light beam needs to pass through earlier the reflection of catoptron 86, see through the transmission of mirror group 87 again and enter prism group 82, just can image in location of horizon 88 at last.Obviously, after the light beam of display element 84 sees through mirror group 87, just have luminance loss's problem, thereby make the data presentation luminance shortage.
Therefore, necessary problem to the existing existing luminance shortage of laser range finder is improved, to obtain more high-quality product.
[summary of the invention]
Fundamental purpose of the present invention is to provide a kind of improvement method of display brightness of laser distance measurer, and it can improve the light penetration rate of laser range finder, and makes the brightness of data presentation promote.
Another object of the present invention is to provide a kind of laser range finder, it can improve the light penetration rate and the data presentation brightness of laser range finder.
According to above-mentioned purpose of the present invention, the invention provides a kind of improvement method of display brightness of laser distance measurer, the observation optical system of this laser range finder mainly includes an objective lens group that is used for collecting the visible light beam that comes from object, one is used for watching the image of object and range finding numerical value and constitutes the eye lens group of the optical axis of this observation optical system with the objective lens group, one is arranged at the prism group that also visible light beam that comes from the objective lens group can be conducted to the eye lens group between objective lens group and the eye lens group, and one be used for showing the display element of numerical value of finding range, this display element is an organic illuminating element with high transmission rate, and it is arranged on the optical axis of this observation optical system to improve the display brightness of laser range finder.
Above-mentioned display element is between prism group and eye lens group, and it can adopt organic illuminating element (OLED).
Above-mentioned prism group comprises that a preceding prism, that is used for receiving the light beam that comes from the objective lens group is used for transmitting to the eye lens group rear prism and an auxiliary prism of light beam.
Above-mentioned laser range finder more includes a laser emission optical system and a laser pick-off optical system.
Above-mentioned laser emission optical system can form observation/optical transmitting system with observing optical system combine, it has a Laser emission element at least, and could be throwed away by the objective lens group afterwards with reflection through the refraction of prism group by the emitted laser Shu Yaoxian of this Laser emission element institute.
Above-mentioned laser pick-off optical system can form observation/receiving optics with observing optical system be integrated in, it has a laser pick-off element at least, is wanted could be received by the laser pick-off element with reflection through the refraction of prism group by the objective lens group earlier by the laser beam that object reflects again.
Compared to prior art, the improvement method of display brightness of laser distance measurer of the present invention is the location of horizon that the organic illuminating element that will have high transmission rate directly is positioned over its optical system, to improve the light penetration rate and the data presentation brightness of laser range finder.
[description of drawings]
Fig. 1 is the organigram of existing laser range finder.
Fig. 2 is the observation/optical transmitting system synoptic diagram of another kind of existing laser range finder.
The observation optical system synoptic diagram of the laser range finder of the present invention of Fig. 3.
[embodiment]
Please join shown in Figure 3ly, the observation optical system 10 of laser range finder of the present invention has an objective lens group 11, a prism group 12, a display element 13 and an eye lens group 14 at least, and wherein objective lens group 11 is mainly used to collect the visible light beam that comes from object; Eye lens group 14 is mainly used to watch the image of object and constitutes the optical axis of these observation optical systems 10 with objective lens group 11; Prism group 12 is mainly used to visible light beam is conducted to eye lens group 14, and it has a preceding prism 120, that is used for receiving the light beam that comes from objective lens group 11 and is used for transmitting to eye lens group 14 rear prism 121 and an auxiliary prism 122 of light beams; And display element 13 is directly to be positioned over location of horizon between prism group 12 and eye lens group 14 show to find range numerical value.
Because of display element 13 employings of the present invention are the organic illuminating elements (OLED) with high transmission rate, and be arranged on the optical axis of observation optical system 10, therefore visible light beam can pass this display element 13 smoothly, and also be shown on this display element 13 clear by the measured distance value of laser range finder, improve the problem of the data presentation luminance shortage of laser range finder in the prior art in this way.
Adopt the laser range finder of above-mentioned observation optical system 10 also to include a laser emission optical system and a laser pick-off optical system at least, wherein laser emission optical system mainly includes a Laser emission element, it can combine with the observation optical system 10 of laser range finder and form an observation/optical transmitting system, can be gone out by objective lens group 11 through after the refraction of prism group 12 and the reflection by this Laser emission element institute emitted laser bundle, detailed integration mode can be with reference at the existing observation/optical transmitting system 91 shown in Fig. 1; And the laser pick-off optical system mainly includes a laser pick-off element, and this laser pick-off optical system can be a separate optical system, is used for receiving laser beam, the receiving optics 92 of existing laser range finder 90 as shown in fig. 1.
Certainly, can also adopt other integration mode for the distance measurement function that reaches laser range finder, for example, can utilize independently optical transmitting system of one of Laser emission element design, the laser pick-off element then combines with the optical system 10 of laser range finder and forms an observation/receiving optics.
Because of above-mentioned radiated element, receiving element and the technology of utilizing these elements to find range all belong to existingly, so this paper will no longer describe in detail this.
Claims (20)
1. the improvement method of a display brightness of laser distance measurer, the observation optical system of this laser range finder mainly includes an objective lens group that is used for collecting the visible light beam that comes from object, one is used for watching the image of object and range finding numerical value and constitutes the eye lens group of the optical axis of this observation optical system with the objective lens group, one is arranged at the prism group that also visible light beam that comes from the objective lens group can be conducted to the eye lens group between objective lens group and the eye lens group, and one be used for showing the display element of numerical value of finding range, it is characterized in that: this display element is a light-emitting component with high transmission rate, it is arranged on the optical axis of this observation optical system, is used for showing range finding numerical value and improves the display brightness of laser range finder.
2. the improvement method of display brightness of laser distance measurer as claimed in claim 1, it is characterized in that: display element is between prism group and eye lens group.
3. the improvement method of display brightness of laser distance measurer as claimed in claim 2, it is characterized in that: display element can adopt Organic Light Emitting Diode (OLED).
4. the improvement method of display brightness of laser distance measurer as claimed in claim 3 is characterized in that: the prism group of this laser range finder comprises that a preceding prism, that is used for receiving the light beam that comes from the objective lens group is used for transmitting to the eye lens group rear prism and an auxiliary prism of light beam.
5. as the improvement method of claim 1 or 4 described display brightness of laser distance measurer, it is characterized in that: laser range finder more includes a laser emission optical system and a laser pick-off optical system.
6. the improvement method of display brightness of laser distance measurer as claimed in claim 5 is characterized in that: the laser emission optical system of this laser range finder can combine with the observation optical system and form observation/optical transmitting system.
7. the improvement method of display brightness of laser distance measurer as claimed in claim 6, it is characterized in that: the laser emission optical system of this laser range finder has a Laser emission element at least, could be throwed away by the objective lens group afterwards with reflection through the refraction of prism group by the emitted laser Shu Yaoxian of this Laser emission element institute.
8. the improvement method of display brightness of laser distance measurer as claimed in claim 5 is characterized in that: the laser pick-off optical system can be formed observation/receiving optics with observing optical system be integrated in.
9. the improvement method of display brightness of laser distance measurer as claimed in claim 8, it is characterized in that: the laser pick-off optical system of this laser range finder has a laser pick-off element at least, is wanted could be received by the laser pick-off element with reflection through the refraction of prism group by the objective lens group earlier by the laser beam that object reflects again.
10. laser range finder, have the high characteristics of display brightness, it includes a Laser emission element that is used for to the object emission of lasering beam, one is used for receiving the laser pick-off element of the laser beam that is reflected by object, approach the object lens of destination end, approach to observe end to be used for watching range finding numerical value and can constitute the eyepiece of the optical axis of laser range finder with object lens, be arranged at the prism that is used for transmitting light beam between object lens and the eyepiece, and can be used for showing the display element of numerical value of finding range, it is characterized in that: described display element is a light-emitting component with high transmission rate, it is arranged on the optical axis of this laser range finder, can improve the display brightness of laser range finder.
11. laser range finder as claimed in claim 10 is characterized in that: display element can adopt Organic Light Emitting Diode (OLED).
12. laser range finder as claimed in claim 11 is characterized in that: display element is between prism and eyepiece.
13. laser range finder as claimed in claim 12 is characterized in that: prism can be a prism group, and it comprises that a preceding prism, that is used for receiving the light beam that comes from object lens is used for transmitting to eyepiece the rear prism and an auxiliary prism of light beam.
14. laser range finder as claimed in claim 13 is characterized in that: can throw away by object lens by Laser emission element institute emitted laser bundle.
15. laser range finder as claimed in claim 13 is characterized in that: the laser beam that is reflected by object will could be received by the laser pick-off element by object lens earlier.
16. laser range finder, have the high characteristics of display brightness, it includes a Laser emission element that is used for to the object emission of lasering beam, one is used for receiving the laser pick-off element of the laser beam that is reflected by object, approach the object lens of destination end, approach to observe end to be used for watching range finding numerical value and can constitute the eyepiece of the optical axis of laser range finder with object lens, prism before having one, the prism group of one rear prism and an auxiliary prism, and can be used for showing the display element of numerical value of finding range, the preceding prism of described prism group is to be used for receiving the light beam that comes from the objective lens group, and the rear prism of described prism group is to be used for transmitting light beam to the eye lens group; It is characterized in that: described display element is one to have the light-emitting component of high transmission rate, and it is arranged on the optical axis of this laser range finder, can improve the display brightness of laser range finder.
17. laser range finder as claimed in claim 16 is characterized in that: display element can adopt Organic Light Emitting Diode (OLED).
18. laser range finder as claimed in claim 16 is characterized in that: display element is between rear prism and eyepiece.
19. laser range finder as claimed in claim 16 is characterized in that: guide to object lens by Laser emission element institute emitted laser bundle via the prism group, relend and help object lens to be projected to an object.
20. laser range finder as claimed in claim 16 is characterized in that: will be passed through object lens earlier by the laser beam that object reflects, could be received by the laser pick-off element via the guiding of prism group again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100654675A CN1844949B (en) | 2005-04-07 | 2005-04-07 | Method for improving display brightness of laser distance measurer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2005100654675A CN1844949B (en) | 2005-04-07 | 2005-04-07 | Method for improving display brightness of laser distance measurer |
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| CN1844949A true CN1844949A (en) | 2006-10-11 |
| CN1844949B CN1844949B (en) | 2010-06-09 |
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| CN2005100654675A Active CN1844949B (en) | 2005-04-07 | 2005-04-07 | Method for improving display brightness of laser distance measurer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319557A (en) * | 2014-07-07 | 2016-02-10 | 信泰光学(深圳)有限公司 | Optical system |
| CN104297742B (en) * | 2014-06-24 | 2016-10-05 | 金华市蓝海光电技术有限公司 | Laser ranging divided beam system |
| CN106154249A (en) * | 2015-04-21 | 2016-11-23 | 信泰光学(深圳)有限公司 | Laser ruler calibration system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2356317Y (en) * | 1999-01-08 | 1999-12-29 | 陆建红 | Aimed semiconductor pulse laser distance measurer |
| TW384384B (en) * | 1999-07-16 | 2000-03-11 | Asia Optical Co Inc | Optical distance measuring apparatus and its method |
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2005
- 2005-04-07 CN CN2005100654675A patent/CN1844949B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297742B (en) * | 2014-06-24 | 2016-10-05 | 金华市蓝海光电技术有限公司 | Laser ranging divided beam system |
| CN105319557A (en) * | 2014-07-07 | 2016-02-10 | 信泰光学(深圳)有限公司 | Optical system |
| CN106154249A (en) * | 2015-04-21 | 2016-11-23 | 信泰光学(深圳)有限公司 | Laser ruler calibration system |
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| Publication number | Publication date |
|---|---|
| CN1844949B (en) | 2010-06-09 |
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