CN2534594Y - Long-distance optical collimator - Google Patents
Long-distance optical collimator Download PDFInfo
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- CN2534594Y CN2534594Y CN 02224645 CN02224645U CN2534594Y CN 2534594 Y CN2534594 Y CN 2534594Y CN 02224645 CN02224645 CN 02224645 CN 02224645 U CN02224645 U CN 02224645U CN 2534594 Y CN2534594 Y CN 2534594Y
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- lens
- value
- concave
- convex
- alignment device
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Abstract
The utility model relates to an optical collimating device, in particular to a remote optical collimating device suitable for semi-conductive laser collimation, consisting of three optical lenses. The utility model is characterized in that: the first is a concave-convex lens, R of the convex surface of the first lens is from 42.01 to 42.98mm and R of the concave surface is from 865 to 877mm; the second is a convex-convex lens, R of the left surface is from 9.5 to 9.75mm and R of the right surface is from 17.00 to 17.55mm; the third is a concave-concave lens, R of the left surface is from 17.00 to 17.55mm and R of the right surface is from 7.60 to 780mm; the surfaces of the same R value of the second and the third lenses are agglutinated by an optical adhesive; the internal center distance between the first and the second lenses is from 37.9 to 38.3 and the external center distance between the first and the third lenses is from 49 to 51.
Description
Affiliated field: the utility model relates to a kind of optical alignment device, and definite saying relates to a kind of remote optical alignment device that is adapted to semiconductor laser collimation usefulness.
Background technology: the output beam of semiconductor laser has certain angle of divergence, this is because the principle of work of semiconductor laser determines, when semiconductor laser was used for range finding, location, the light beam of its output need collimate, to guarantee the accuracy of range finding, location.The process of collimation is that the output beam with semiconductor laser produces into a branch of light beam by the approximate parallel transmission of certain pore size behind optical lens, and the light beam after collimation is handled requires the angle of divergence the smaller the better.Fig. 1 is the embodiment by the colimated light system of desirable light source design, is positioned at the optical axis O front focus one pointolite S of a lens L, and behind desirable lens L, it is output as the light beam of a branch of parallel transmission, and the diameter of light beam is relevant with the focal length of lens.Noise spectra of semiconductor lasers or other laser instrument, the design of collimator apparatus exists following problem, one, in fact semiconductor laser or other laser light source are not ideal point light sources, but the emission light of a shape with a tight waist, therefore the optical alignment device by Fig. 1 design will can not produce desirable parallel beam; Its two, common optical lens itself exists aberration, for monochromatic source, mainly is spherical aberration, coma or distortion; Its three, requiring under the high situation of utilization ratio of optical energy, the optical system relative aperture of design is big more, it is difficult more to overcome lens aberration.Generally the relative aperture of colimated light system is about 1/10.
In addition, the optical alignment device also designs according to specific requirement usually, in some applications, requires the optical alignment device can reach best effect under a certain specific range.
Summary of the invention: the purpose of this utility model is a kind of capacity usage ratio height of design, and aberration is little, and angle of divergence R has the remote optical alignment device of best collimation effect less than 0.6mrad at the 100m place.
The purpose of this utility model is to realize like this, design a kind of remote optical alignment device, it is made up of three optical lenses, it is characterized in that: first is concave-convex lens, the R value of the convex surface of first lens is between 42.01～42.98mm, and the R value of concave surface is between 865～877mm; Second lens is the convexo-convex lens, and the R value on the left side is between 9.5～9.75mm, and the R value on the right side is between 17.00～17.55mm; The 3rd lens are concavo-concave mirror, and the R value on the left side is between 17.00～17.55mm, and right side R value is between 7.60～7.80mm; The face that second lens are identical with the 3rd lens R value connects with optics is gluing, and the interior centre distance of first and second lens is between 37.9～38.3, and first and the 3rd outer centre distance of lens are between 49～51.
The external diameter of described a slice lens is _ 22mm that second external diameter with the 3rd lens is _ 14.4mm.
The center thickness of described first lens is between 3.78～3.9mm, and the center thickness of second lens is between 5.78～5.83mm, and the center thickness of the 3rd lens is between 1.60～1.79mm.
Described first lens material and second lens material are K9 glass, and the 3rd sheet glass material is F5.
Less than 0.6mrad, relative aperture is much larger than 1/10 according to its angle of divergence of optical alignment device R of above-mentioned parameter design, and aberration has best collimation effect less than 0.003mm at the 100m place.The utility model designs by optical wavelength λ=635～650nm.
Below in conjunction with the embodiment accompanying drawing the utility model is described further:
Description of drawings: Fig. 1 is the embodiment by the collimator apparatus of desirable light source design;
Fig. 2 is the utility model embodiment light path synoptic diagram;
Fig. 3 is first optics of lens lens parameter and structural representation;
Fig. 4 is second optics of lens lens parameter and structural representation;
Fig. 5 is the 3rd optics of lens lens parameter and structural representation.
Among the figure, L
1, first slice lens; L
2, second slice lens; L
3, the 3rd slice lens.
Embodiment: as Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, L
1Be concave-convex lens, the R1 value of the convex surface of first lens is between 42.01～42.98mm, and the R2 value of concave surface is between 865～877mm; L
2Be the convexo-convex lens, the R3 value on the left side is between 9.5～9.75mm, and the R4 value on the right side is between 17.00～17.55mm: L
3Be concavo-concave lens, the R5 value on the left side is between 17.00～17.55mm, and right side R6 value is between 7.60～7.80mm; The face that second lens are identical with the 3rd lens R value connects with optics is gluing, and the interior centre distance D2 of first and second lens is between 37.9～38.3, and first and the 3rd outer centre distance D5 of lens are between 49～51.L
1External diameter be _ 22m L
2, L
3External diameter be _ 14.4mm.L
1Center thickness D1 be between 3.78～3.9mm, L
2Center thickness D3 is between 5.78～5.83mm, L
3Center thickness D4 be between 1.60～1.79mm.L
1, L
2Lens material is a K9 glass, L
3Glass material is F5.
Claims (4)
1, remote optical alignment device, it is made up of three optical lenses, it is characterized in that: first is concave-convex lens, and the R value of the convex surface of first lens is between 42.01～42.98mm, and the R value of concave surface is between 865～877mm; Second lens is the convexo-convex lens, and the R value on the left side is between 9.5～9.75mm, and the R value on the right side is between 17.00～17.55mm; The 3rd lens are concavo-concave mirror, and the R value on the left side is between 17.00～17.55mm, and right side R value is between 7.60～7.80mm; The face that second lens are identical with the 3rd lens R value connects with optics is gluing, and the interior centre distance of first and second lens is between 37.9～38.3, and first and the 3rd outer centre distance of lens are between 49～51.
2, remote optical alignment device according to claim 1 is characterized in that: the external diameter of described a slice lens is _ 22mm that second external diameter with the 3rd lens is _ 14.4mm.
3, remote optical alignment device according to claim 1, it is characterized in that: the center thickness of described first lens is between 3.78～3.9mm, the center thickness of second lens is between 5.78～5.83mm, and the center thickness of the 3rd lens is between 1.60～1.79mm.
4, remote optical alignment device according to claim 1 is characterized in that: described first lens material and second lens material are K9 glass, and the 3rd sheet glass material is F5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224645 CN2534594Y (en) | 2002-03-18 | 2002-03-18 | Long-distance optical collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224645 CN2534594Y (en) | 2002-03-18 | 2002-03-18 | Long-distance optical collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2534594Y true CN2534594Y (en) | 2003-02-05 |
Family
ID=33702015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224645 Expired - Fee Related CN2534594Y (en) | 2002-03-18 | 2002-03-18 | Long-distance optical collimator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2534594Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405524A (en) * | 2016-08-24 | 2017-02-15 | 上海兰宝传感科技股份有限公司 | Infrared distance measuring sensor |
| CN106405565A (en) * | 2016-08-24 | 2017-02-15 | 上海兰宝传感科技股份有限公司 | Unmanned aerial vehicle barrier-avoiding/height-determining system |
| CN106652807A (en) * | 2017-01-03 | 2017-05-10 | 京东方科技集团股份有限公司 | Splicing display screen and display method thereof and display device |
-
2002
- 2002-03-18 CN CN 02224645 patent/CN2534594Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405524A (en) * | 2016-08-24 | 2017-02-15 | 上海兰宝传感科技股份有限公司 | Infrared distance measuring sensor |
| CN106405565A (en) * | 2016-08-24 | 2017-02-15 | 上海兰宝传感科技股份有限公司 | Unmanned aerial vehicle barrier-avoiding/height-determining system |
| CN106652807A (en) * | 2017-01-03 | 2017-05-10 | 京东方科技集团股份有限公司 | Splicing display screen and display method thereof and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |