CN201048238Y - Diaphragm type laser - Google Patents
Diaphragm type laser Download PDFInfo
- Publication number
- CN201048238Y CN201048238Y CNU2007200962473U CN200720096247U CN201048238Y CN 201048238 Y CN201048238 Y CN 201048238Y CN U2007200962473 U CNU2007200962473 U CN U2007200962473U CN 200720096247 U CN200720096247 U CN 200720096247U CN 201048238 Y CN201048238 Y CN 201048238Y
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- laser
- lens
- light
- rays
- housing
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Abstract
The utility model relates to the measuring instrument field, in particular to the field of the laser on a laser measuring instrument. A diaphragm type laser comprises a laser shell 4, a laser tube 7 in the shell, a battery of lens 1 fixed in the laser shell, and a lens fixed in a lens seat 3. The diaphragm type laser is characterized in that the center of the front end of the lens seat is provided with an elongated slot as a diaphragm 11. The utility model has the advantages that the line typed out by the traditional laser measuring instrument is clearer and brighter, and the line shape is more uniform without stray light; in addition, the laser rays can be projected on the position clinging to the ground and the metope.
Description
Technical field
The utility model relates to the measuring instrument field, specifically the field of lasers on the laser surveying instrument.
Technical background
Existing laser surveying instrument, by the light transmission cylinder of laser and the cylindrical lens of light transmission cylinder front end, utilize the refraction principle of light, reflect a bright laser rays, and laser rays is transmitted in the place ahead of laser device and measures, and mainly is to be used for electronic circuit and pipe laying; Tiling, ceramic tile, panelling, shop wallpaper; Levelling such as kitchen and Toilet Installation, planning and measurement.But during in-site measurement, also need sometimes laser rays is beaten on close proximity to ground or metope, and it is consistent to require product emitted laser line thickness to answer, and stray light can not be arranged, laser rays can not bifurcated.Therefore existing laser surveying instrument just can not satisfy this requirement.
Original laser structure such as Fig. 4: the light hole on the cylindrical lens base is circular; As Fig. 3: lens are common post mirrors.Such structure can not be finished: if instrument is attached on metope or the ground, from instrument emitted laser line on the wall or a clear bright laser rays just can be arranged on the ground.Because refraction angle is consistent behind the columniform lens of a branch of directional light incident, therefore the laser rays of launching to metope, is equivalent to a sector from the post mirror; And non-spherical lens is because a side of lens is aspheric surfaces, after so a branch of directional light is injected lens, the angle of outgoing is according to the radius difference of non-spherical lens and the shooting angle difference, so suitable involute of launching of laser rays, that is: little at the little place of non-spherical lens radius emitted laser line angle degree, radius general goal emitted laser line angle degree is big, so just make laser rays after passing through non-spherical lens, laser rays directly is transmitted in the place ahead of instrument in the time of can making instrument be attached to metope and ground.And circular light hole can not be eliminated some assorted spots of laser rays, and circular light hole do not have the hurdle light action, so the even thickness of the laser rays launched of instrument is bad, and veiling glare should not be eliminated.And the shortcoming of circular light hole is: beat at metope, ground laser rays live width lack of homogeneity, veiling glare is difficult for eliminating.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of laser is provided, and can make the laser rays even thickness unanimity of launching, and eliminates stray light, laser rays is beaten at the front end that is close to the close instrument light hole on ground, the metope.
In order to realize above purpose, the technical solution adopted in the utility model is: light bar laser, comprise laser housing 4, the laser tube 7 of an end in the housing, be fixed on the set of lenses 1 in the laser housing, be fixed on the lens 2 in the lens mount 3, it is characterized in that, open an elongated slot as light hurdle 11 at the center of lens mount front end.
Described lens are non-spherical lenses.
An elongated slot is made as the laser rays exit pupil position in the center of lens mount front end, be light hurdle 11, change laser rays emergent pupil clear aperature by the light hurdle and reach elimination laser rays stray light, and the purpose of the width of constrained line, thereby change the linearity of laser rays, reach the purpose of product the linearity requirement of laser rays.
Utilize non-spherical lens to make laser beam pass through non-spherical lens---a kind of lens that constitute by the cambered surface smooth connection of different curvature radius, utilize the refraction principle of light to form a series of different light beams that radiate angles, fall the luminous point of diverse location, reach laser rays is beaten front end purpose at the close instrument light hole of the position that is close to ground, metope.
Compared with prior art, the beneficial effects of the utility model are: more clear, bright, the linear uniformity more of the line that traditional laser surveying instrument is got, no stray light; And laser rays can be beaten on the position that is close to ground, metope.
Description of drawings
Fig. 1 be the utility model light bar laser partly cut open schematic diagram, wherein: 1. set of lenses, 2. non-spherical lens, 3. lens mount, 4. laser housing, 5. groove, 6. light transmission cylinder, 7. laser tube, 8. lead, 11. smooth hurdles.
Fig. 2 is the non-spherical lens seat view of the utility model light bar laser, wherein: 2. non-spherical lens, 3. lens mount, 11. smooth hurdles.
Fig. 3 is the structure of original laser, i.e. the laser of cylindrical lens: 9. cylindrical lens, 10. cylindrical lens base.
Fig. 4 be the A of Fig. 3 to view, wherein: 9. cylindrical lens, 10. cylindrical lens base.
Embodiment
As seen from Figure 1, light bar laser comprises laser housing 4, the laser tube 7 of an end in the housing is fixed on the set of lenses 1 in the laser housing, is fixed on the lens 2 in the lens mount 3, it is characterized in that, open an elongated slot as light hurdle 11 at the center of lens mount front end.The laser beam that laser tube 7 is launched through lens 1, reflects into laser rays through non-spherical lens 2 by light transmission cylinder 6.
Process the groove 5 of two symmetries on the housing 4 of laser, withstand on respectively in two grooves with two jackscrews, when the laser rays that sends when laser tilts, by adjusting jackscrew, adjust the inclination of laser rays, the laser rays that laser is launched is vertical.The 8th, the lead of laser, the one end is connected with laser, and the other end leads to power supply.
Can be clear that by Fig. 2: elongated slot, promptly light hurdle 11 is opened in the center of lens mount 3., and non-spherical lens 2. also is positioned at over against the center on light hurdle 11, can see the different of the utility model and original cylindrical lens base light hole thus.The width on light hurdle is relevant with the laser linewidth of ejaculation; The length on light hurdle is with relevant with the laser rays length that penetrates.
Claims (3)
1. light bar laser comprises the laser housing, and the laser tube of an end in the housing is fixed on the set of lenses in the laser housing, is fixed on the lens in the lens mount, it is characterized in that, opens an elongated slot as the light hurdle at the center of lens mount front end.
2. smooth bar laser according to claim 1 is characterized in that described lens are non-spherical lens.
3. smooth bar laser according to claim 1 and 2 is characterized in that, processes the groove of two symmetries on the housing of laser, withstands on respectively in two grooves with two jackscrews.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200962473U CN201048238Y (en) | 2007-06-05 | 2007-06-05 | Diaphragm type laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200962473U CN201048238Y (en) | 2007-06-05 | 2007-06-05 | Diaphragm type laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048238Y true CN201048238Y (en) | 2008-04-16 |
Family
ID=39300831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200962473U Expired - Fee Related CN201048238Y (en) | 2007-06-05 | 2007-06-05 | Diaphragm type laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048238Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819144A (en) * | 2017-11-22 | 2019-05-28 | 浙江舜宇智能光学技术有限公司 | TOF camera module and its design method |
-
2007
- 2007-06-05 CN CNU2007200962473U patent/CN201048238Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109819144A (en) * | 2017-11-22 | 2019-05-28 | 浙江舜宇智能光学技术有限公司 | TOF camera module and its design method |
| CN109819144B (en) * | 2017-11-22 | 2021-02-05 | 浙江舜宇智能光学技术有限公司 | TOF camera module and design method thereof |
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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: 20080416 Termination date: 20120605 |