CN201955550U - Blockageless 360-degree optical scanner - Google Patents
Blockageless 360-degree optical scanner Download PDFInfo
- Publication number
- CN201955550U CN201955550U CN2010206879382U CN201020687938U CN201955550U CN 201955550 U CN201955550 U CN 201955550U CN 2010206879382 U CN2010206879382 U CN 2010206879382U CN 201020687938 U CN201020687938 U CN 201020687938U CN 201955550 U CN201955550 U CN 201955550U
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- Prior art keywords
- scanning mirror
- scanning
- bracing frame
- light beam
- blocked
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Abstract
The utility model discloses a blockageless 360-degree optical scanner, which comprises a scanning mirror and a scanning mirror holder; the scanning mirror holder is mainly used for driving, supporting and clamping the scanning mirror; the scanning mirror holder is distributed on the 360-degree circumference around the axial line of the scanner, and the lateral dimension of the scanning mirror holder on the direction of the cross section of a light beam is less than the dimension of the scanning light beam. When the rotary scanning mirror carries out circumferential scanning, the scanning mirror holder cannot completely block the light beam and a receiving field of view, and therefore can realize blockageless 360-degree scanning, the structure is simple, and the scanning efficiency is high.
Description
Technical field
The utility model relates to a kind of optical scanning technology, relates in particular to a kind of nothing and blocks 360 ° of optical scanners.
Background technology
The optical scanning technology has been applied to such as aspects such as laser printer, three-dimensional dimension measurements.The optical scanning technology is to utilize the catoptron of light beam through rotating or swinging to form scanning light beam object is scanned, and wherein class scanning is circular scan.
A kind of circular scan device of the prior art as shown in Figure 1, light source 1 emission light beam arrives scanning mirror 3 by auxiliary optical catoptron 2, the auxiliary parts 6 that are installed couple together scanning mirror 3 and auxiliary optical catoptron 2, scanning mirror 3 is connected with microscope base 4 by screw, microscope base 4 links to each other with motor 5, motor 5 driven sweep mirrors 3 are done high speed rotating, make light beam do circular scan.
There is following problem at least in above-mentioned prior art:
Scanning mirror and light emitting source are in the same side, and intermediate demand has catoptron to change beam direction, and when scanning light beam carried out circular scan with the rotation of scanning mirror, the auxiliary parts 6 that are installed can produce light beam and block, and have reduced scanning field of view.
An innovative approach at this problem is to adopt transparent material to make the auxiliary parts 6 that are installed, but for intensity, the optical property of material higher requirement is arranged, and difficulty of processing is not little.
The utility model content
The purpose of this utility model provides the nothing of blocking a kind of visual field simple in structure, no and blocks 360 ° of optical scanners.
The purpose of this utility model is achieved through the following technical solutions:
Nothing of the present utility model is blocked 360 ° of optical scanners, comprise scanning mirror assembly and scanning mirror bracing frame, less than the beam and focus size, described scanning mirror bracing frame is blocking less than instantaneous optics field angle that optics visual field direction forms at the lateral dimension of scanning light beam cross-wise direction for described scanning mirror bracing frame.
The technical scheme that is provided by above-mentioned the utility model as can be seen, nothing described in the utility model is blocked 360 ° of optical scanners, because the scanning mirror bracing frame is in the lateral dimension of the beam cross section direction spot size less than scanning light beam, when rotary motion mechanism drives scanning mirror rotation carrying out circular scan, the scanning mirror bracing frame does not all block light beam and receives the visual field, therefore can realize not having and block 360 ° of scannings, simple in structure, scan efficiency is high.
Description of drawings
Fig. 1 is the structural representation of optical scanner of the prior art;
Fig. 2 a is that the utility model does not have the structural representation that blocks 360 ° of optical scanner specific embodiments one;
Fig. 2 b is that the utility model does not have the structural representation that blocks 360 ° of optical scanner specific embodiments two;
Fig. 3 a is the structural representation of overlooking of scanning mirror bracing frame in the utility model;
Fig. 3 b is that the A-A of Fig. 3 a is to cross-sectional schematic.
Embodiment
Nothing of the present utility model is blocked 360 ° of optical scanners, and its preferable embodiment is shown in Fig. 2 a, Fig. 2 b, Fig. 3 a, Fig. 3 b:
Comprise scanning mirror assembly and scanning mirror bracing frame 13, described scanning mirror bracing frame 13 at the lateral dimension of scanning light beam cross-wise direction less than the beam and focus size.Can be 1/3rd to 1/2nd of beam and focus size such as scanning mirror bracing frame 13 at the horizontal chi of scanning light beam cross-wise direction.The scanning mirror bracing frame is blocking less than instantaneous optics field angle 15 that optics visual field direction forms.
Described scanning mirror bracing frame 13 can be distributed on 360 ° of circumference of this scanister axis.
The material of described scanning mirror bracing frame 13 can be optics material or optics material thoroughly thoroughly.
Described scanning mirror bracing frame 13 can be installed reflecting element on the surface over against beam direction.
Described scanning mirror bracing frame 13 can adhere to extinction no reflection events material over against the surface of beam direction.
Specific embodiment one, shown in Fig. 2 a, scanning mirror bracing frame 13 supports the scanning mirror assembly, and revolution drives and drives the scanning mirror rotation.The emission light beam is directly into being incident upon scanning rotary reflection prism 11, folded light beam forms scanning light beam, scanning mirror bracing frame 13 is about 1/3rd of beam sizes at the lateral dimension of beam cross section direction, the effective scanning visual field is not had block, and can reach not have to block 360 ° of circular scans;
Specific embodiment two, shown in Fig. 2 b, during scanning, revolution drives and drives the scanning mirror rotation, and scanning mirror bracing frame 13 supports the scanning mirror assembly, and revolution drives and drives the scanning mirror rotation.The emission light beam is incident to scanning rotary reflection prism 11 behind auxiliary optical component 14 turnover light beams, folded light beam forms scanning light beam, scanning mirror bracing frame 13 is about 1/2nd of beam sizes at the lateral dimension of beam cross section direction, the effective scanning visual field do not had block, finish not have and block 360 ° of circular scans.
In the utility model, light beam can form scanning light beam through mirror reflects directly into being incident upon the scanning reflection prism, and light beam also can be incident to the scanning reflection prism and form scanning light beam through mirror reflects after middle secondary optics is transferred to light path; Since the scanning mirror bracing frame at the lateral dimension of beam cross section direction less than the scanning light beam spot size, when scanning light beam carries out circular scan along with the rotation of scanning mirror, the scanning mirror bracing frame does not all block light beam and receives the visual field, can realize that therefore 360 ° of visual fields do not have the optical scanning of blocking.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (6)
1. a nothing is blocked 360 ° of optical scanners, it is characterized in that, comprises scanning mirror assembly and scanning mirror bracing frame, described scanning mirror bracing frame at the lateral dimension of scanning light beam cross-wise direction less than the beam and focus size.
2. nothing according to claim 1 is blocked 360 ° of optical scanners, it is characterized in that, described scanning mirror bracing frame is blocking less than instantaneous optics field angle that optics visual field direction forms.
3. nothing according to claim 1 and 2 is blocked 360 ° of optical scanners, it is characterized in that, described scanning mirror bracing frame is distributed on 360 ° of circumference of this scanister axis.
4. nothing according to claim 3 is blocked 360 ° of optical scanners, it is characterized in that, the material of described scanning mirror bracing frame is an optics material or optics material thoroughly thoroughly.
5. nothing according to claim 4 is blocked 360 ° of optical scanners, it is characterized in that, described scanning mirror bracing frame is at the mounted on surface reflecting element over against beam direction.
6. nothing according to claim 4 is blocked 360 ° of optical scanners, it is characterized in that, described scanning mirror bracing frame is at the surface attachment extinction no reflection events material over against beam direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206879382U CN201955550U (en) | 2010-12-29 | 2010-12-29 | Blockageless 360-degree optical scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206879382U CN201955550U (en) | 2010-12-29 | 2010-12-29 | Blockageless 360-degree optical scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955550U true CN201955550U (en) | 2011-08-31 |
Family
ID=44499658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206879382U Expired - Lifetime CN201955550U (en) | 2010-12-29 | 2010-12-29 | Blockageless 360-degree optical scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201955550U (en) |
-
2010
- 2010-12-29 CN CN2010206879382U patent/CN201955550U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |