Patent Application
20150185001
The subject matter herein generally relates to a detection device and in particular to a laser detection device.
Laser detection devices transmit a coherent light beam at targets and measure various aspects of these targets using backscattered light from the light beam.
Implementations of the present technology will now be described, by way of example only, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.
Several definitions that apply throughout this disclosure will now be presented.
The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “substantially” is defined to be essentially conforming to the particular dimension, shape, or other feature that the term modifies, such that the component need not be exact. For example, “substantially cylindrical” means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series and the like.
A laser detection device can include a mounting member, a laser displacement sensor fixed on the mounting member, and a reflective member. The laser displacement sensor can include a laser transmitting head configured to emit laser beams to a workpiece along a first line of direction, and a laser receiving head coupled to the laser transmitting head and configured to receive the laser beams reflected from the workpiece. The reflective member can include a prism fixed on the mounting member, and spaced away from the laser displacement sensor. The prism can have a reflective surface on an incline with the first line of direction and configured to reflect via the reflective surface to the workpiece along a second line of direction which is different from the first line of direction, and a part of the laser beams which are reflected via the prism to the laser receiving head.
The mounting member 10 can be substantially an L-shaped plate, and can include a support portion 11, a mounting portion 13, and two reinforced portions 15. The mounting portion 13 can protrude out from a side of support portion 11, and can be substantially vertical to the support portion 11. Each reinforced portion 15 can be securely coupled to the support portion 11 and the mounting portion 13. The two reinforced portions 15 can be located on a same end of the support portion 11. The reinforced portion 15 can be configured to strengthen the support portion 11 and the mounting portion 13. In at least one embodiment, the number of the reinforced portions 15 can be changed as needed, such as one.
The laser displacement sensor 30 can be fixed on an end of the mounting portion 13 away from the support portion 11, and can include a laser transmitting head 31 and a laser receiving head 33 which is coupled to the laser transmitting head 31. The laser transmitting head 300 can be configured to transmit a number of laser beams to the workpiece 300 along a first line of direction. The laser receiving head 33 can be configured to receive laser beams which are reflected by the workpiece.
The reflective member 50 can be fixed on an end of the mounting portion 13 away from the laser displacement sensor 30. The reflective member 50 can include a connecting portion 51, a prism 53, and a screw 55. The connecting portion 51 can be fixed on an end of the mounting portion 13 away from the laser displacement sensor 30. The connecting portion 51 can define a mounting groove 511. The mounting groove 511 can include two opposite side walls 513, and one side wall 513 can define a screw hole 515 which communicates with the mounting groove 511. The prism 53 can be received in the mounting groove 511, and can be spaced a predetermined distance from the laser displacement sensor 30. The prism 53 can have a reflective surface 531 on an incline with a first line of direction. In at least one embodiment, the prism 53 can be a triangular prism.
The screw 55 can be screwed into the screw hole 515 to push the prism 53; the prism 53 can be pushed to be in touch with the side wall 513 away from the screw hole 515. In this way, the prism 53 can be securely received in the mounting groove 511, and the prism 53 can be spaced a predetermined distance from the mounting portion 13 of the mounting member 10. In at least one embodiment, the screw 55 can be other fasteners with threads.
In at least one embodiment, the another part of the laser beams can be reflected to the periphery wall 310 through the prism 53 along the second line of direction , and then be directly reflected to the laser receiving head 33 via the periphery wall 310.
In at least one embodiment, the number of the prisms 53 can be changed as needed, for example, the laser detection device 100 can include four prisms 53 arranged around the workpiece 300. In at least one embodiment, the connecting portion 51 and the screw 55 can both be omitted, the prism 53 can be fixed on the mounting member 10 by other methods, such as using an adhesive.
While the present disclosure has been described with reference to particular embodiments, the description is illustrative of the disclosure and is not to be construed as limiting the disclosure. Therefore, those of ordinary skill in the art can make various modifications to the embodiments without departing from the scope of the disclosure, as defined by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201310734852.9 | Dec 2013 | CN | national |
