CN2534596Y - Near-distance optical collimator - Google Patents
Near-distance optical collimator Download PDFInfo
- Publication number
- CN2534596Y CN2534596Y CN 02224648 CN02224648U CN2534596Y CN 2534596 Y CN2534596 Y CN 2534596Y CN 02224648 CN02224648 CN 02224648 CN 02224648 U CN02224648 U CN 02224648U CN 2534596 Y CN2534596 Y CN 2534596Y
- Authority
- CN
- China
- Prior art keywords
- lens
- value
- convex
- alignment device
- optical alignment
- 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
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The utility model relates to an optical collimating device, in particular to a short distance optical collimating device suitable for semi-conductive laser collimation, consisting of three optical lenses. The first and the second lenses are a concave-convex lens; R of the convex surface of the first lens is from 5.05 to 5.35mm and R of the concave surface is from 5.509 to 5.702mm; R of the convex surface of the second lens is from 5.206 to 5.40mm and R of the concave surface is from 141.23 to 143mm; the third is a convex-convex lens, R of the left surface is from 7.2 to 7.49mm and R of the right surface is from 85.0 to 86.0mm; the internal center distance between the second and the third lenses is from 1.12 to 1.22mm and the planes in the concave surface of the first and the second lenses are connected.
Description
Affiliated field: the utility model relates to a kind of optical alignment device, and definite saying relates to a kind of closely 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 all needed to collimate, to guarantee the accuracy of range finding, location.The process of collimation is that the output beam with semiconductor laser becomes 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 closely optical alignment device of best collimation effect less than 0.6mrad at the 500mm place.
The purpose of this utility model is to realize like this, design a kind of closely optical alignment device, it is made up of three optical lenses, it is characterized in that: first is concave-convex lens with second lens, the R value of the convex surface of first lens is between 5.05～5.35mm, and the R value of concave surface is between 5.509～5.702mm; The R value of second lens convex surface is between 5.206～5.40mm, and the R value of concave surface is between 141.23～143mm; The 3rd lens are the convexo-convex mirror, and the R value on the left side is between 7.2～7.49mm, and right side R value is between 85.0～86.0mm; The interior centre distance of second and the 3rd lens is between 1.12～1.22mm, and the plane in first concave surface with second lens is connected.
The external diameter of described three lens is _ 8mm.
The center thickness of described first lens is between 2.78～2.82mm, and the center thickness of second and the 3rd lens is between 2.93～3.20mm.
Described lens material can be a K9 glass, also can be ZF6 glass.
Less than 0.6mrad, relative aperture is less than 1/1.5 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 500mm 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
2, the 3rd slice lens.
Embodiment: as Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, first is concave-convex lens with second lens, and the R1 value of the convex surface of first lens is between 5.05～5.35mm, and the R2 value of concave surface is between 5.509～5.702mm; The R4 value of second lens convex surface is between 5.206～5.40mm, and the R3 value of concave surface is between 141.23～143mm; The 3rd lens are the convexo-convex mirror, and the R5 value on the right side is between 7.2～7.49mm, and left side R6 value is between 85.0～86.0mm; The interior centre distance D2 of second and the 3rd lens is between 1.12～1.22mm, and the plane in first concave surface with second lens is connected.L
1, L
2, L
3The external diameter of three lens is _ 8mm.L
1The center thickness D1 of lens is between 2.78～2.82mm, L
2, L
3The center thickness D3 of lens is between 2.93～3.20mm.L
1, L
2, L
3Lens material can be a K9 glass, also can be ZF6 glass.
Claims (4)
1, optical alignment device closely, it is made up of three optical lenses, it is characterized in that: first is concave-convex lens with second lens, and the R value of the convex surface of first lens is between 5.05～5.35mm, and the R value of concave surface is between 5.509～5.702mm; The R value of second lens convex surface is between 5.206～5.40mm, and the R value of concave surface is between 141.23～143mm; The 3rd lens are the convexo-convex mirror, and the R value on the left side is between 7.2～7.49mm, and right side R value is between 85.0～86.0mm; The interior centre distance of second and the 3rd lens is between 1.12～1.22mm, and the plane in first concave surface with second lens is connected.
2, closely optical alignment device according to claim 1 is characterized in that: the external diameter of described three lens is _ 8mm.
3, closely optical alignment device according to claim 1, it is characterized in that: the center thickness of described first lens is between 2.78～2.82mm, the center thickness of second and the 3rd lens is between 2.93～3.20mm.
4, closely optical alignment device according to claim 1, it is characterized in that: described lens material can be a K9 glass, also can be ZF6 glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224648 CN2534596Y (en) | 2002-03-18 | 2002-03-18 | Near-distance optical collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224648 CN2534596Y (en) | 2002-03-18 | 2002-03-18 | Near-distance optical collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2534596Y true CN2534596Y (en) | 2003-02-05 |
Family
ID=33702018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224648 Expired - Fee Related CN2534596Y (en) | 2002-03-18 | 2002-03-18 | Near-distance optical collimator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2534596Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088033A1 (en) * | 2018-10-31 | 2020-05-07 | 上海微电子装备（集团）股份有限公司 | Optical collimating system |
-
2002
- 2002-03-18 CN CN 02224648 patent/CN2534596Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088033A1 (en) * | 2018-10-31 | 2020-05-07 | 上海微电子装备（集团）股份有限公司 | Optical collimating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7400457B1 (en) | Rectangular flat-top beam shaper | |
| US6069748A (en) | Laser line generator system | |
| US6356395B1 (en) | Light intensity distribution converting device and optical data storage apparatus | |
| US20080212185A1 (en) | Laser Optical Device | |
| JP6413030B1 (en) | Light guide device, laser module, and method of manufacturing light guide device | |
| JP6490432B2 (en) | Lighting device | |
| US5917660A (en) | Beam converting optical system | |
| US6088170A (en) | Optical system for shaping light beams and an optical pickup employing the same | |
| CN210776002U (en) | F40 large-numerical-aperture high-power laser diffraction limit collimating objective lens | |
| CN2534596Y (en) | Near-distance optical collimator | |
| CN2534594Y (en) | Long-distance optical collimator | |
| CN111463656A (en) | Optical fiber coupling system | |
| US20020166952A1 (en) | Beam shaper, and semiconductor laser source device and optical head using the beam shaper | |
| CN111458813A (en) | Laser coupling optical path | |
| CN2560966Y (en) | Combined optical collimating apparatus | |
| CN2534598Y (en) | Optical collimator | |
| CN2534597Y (en) | Optical collimator | |
| KR19980066783A (en) | An optical system for beam shaping and an optical pickup employing the optical system | |
| CN2414387Y (en) | Quasi-straight light-focusing apparatus | |
| JP4460877B2 (en) | Laser light intensity distribution conversion optical system | |
| CN2534595Y (en) | Middle-distance optical collimator with prism | |
| JP2001009580A (en) | Laser light condensing device | |
| US20180292662A1 (en) | Rectangular beam shaper having monolithic body of refractive material | |
| CN212162326U (en) | Optical fiber coupling system | |
| CN212160164U (en) | Laser coupling optical path |
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 |