CN216559643U - Light beam collimating mechanism and lensmeter measuring system with same - Google Patents
Light beam collimating mechanism and lensmeter measuring system with same Download PDFInfo
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- CN216559643U CN216559643U CN202123298299.8U CN202123298299U CN216559643U CN 216559643 U CN216559643 U CN 216559643U CN 202123298299 U CN202123298299 U CN 202123298299U CN 216559643 U CN216559643 U CN 216559643U
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Abstract
The utility model discloses a light beam collimating mechanism and a lensmeter measuring system, wherein the light beam collimating mechanism comprises: the light source is arranged at the top of the light beam transmission assembly, the objective lens is arranged at the bottom of the light beam transmission assembly, and the objective lens is arranged on the light beam transmission assembly through the objective lens pressing ring. The light beam collimation mechanism that this application provided is through setting up light beam transmission assembly between light source and objective to set up the light through-hole of high accuracy on light beam transmission assembly, guaranteed luminous intensity and light beam collimation nature, improved measurement accuracy, and can adjust the interval of objective and light beam transmission assembly through rotating the objective clamping ring, rational in infrastructure, the reliability is high.
Description
Technical Field
The utility model relates to the technical field of lensometers, in particular to a light beam collimating mechanism. In addition, the utility model also relates to a lensmeter measuring system comprising the beam collimation mechanism.
Background
Lensometers are mainly used for measuring the top power (D), the prism power (Δ) of spectacle lenses, determining the cylinder axis direction of the cylinder lens, printing marks on the uncut lens and checking whether the lens is correctly mounted in the frame. The beam collimation mechanism of the conventional lensmeter measurement system generally has the following problems: the collimation of light beams is poor, the measurement precision is not high, and the error of the lens for measuring low transmittance is large.
In summary, how to solve the problems of poor beam collimation and low measurement accuracy is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a light beam collimating mechanism, which ensures the light flux intensity and the light beam collimation property, improves the measurement accuracy, and has high reliability.
Another object of the present invention is to provide a lensmeter measurement system that includes the beam collimation mechanism described above.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a beam collimation mechanism comprising: the light source, the light beam transmission assembly, the objective lens and the objective lens clamping ring are used for adjusting the distance between the objective lens and the light beam transmission assembly, a high-precision light through hole is formed in the light beam transmission assembly, the light source is arranged at the top of the light beam transmission assembly, the objective lens is arranged at the bottom of the light beam transmission assembly, and the objective lens is installed in the light beam transmission assembly through the objective lens clamping ring.
Preferably, the light beam transmission assembly comprises an objective tube, an aperture diaphragm, a mounting seat and a diaphragm pressing ring, the light through hole is formed in the aperture diaphragm, the aperture diaphragm is arranged between the mounting seat and the diaphragm pressing ring, the mounting seat is arranged at the top of the objective tube, the objective lens is arranged at the bottom of the objective tube, and the light source is arranged at the top of the mounting seat.
Preferably, a groove is arranged on the side surface of the mounting seat.
The lensmeter measuring system comprises a measuring base and the light beam collimating mechanism, wherein the measuring base is of a hollow structure, and the light beam collimating mechanism is arranged in the hollow structure.
Preferably, the side surface of the measuring base is provided with a mounting hole, a fastening screw is arranged in the mounting hole, and the mounting hole is communicated with the hollow structure of the measuring base.
Preferably, the lower end of the objective lens clamping ring protrudes out of the hollow structure.
The light beam collimation mechanism that this application provided is through setting up light beam transmission assembly between light source and objective to set up the light through-hole of high accuracy on light beam transmission assembly, guaranteed luminous intensity and light beam collimation nature, improved measurement accuracy, and can adjust the interval of objective and light beam transmission assembly through rotating the objective clamping ring, rational in infrastructure, the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a cross-sectional view of a beam collimation mechanism provided by the present invention;
FIG. 2 is a cross-sectional view of a mounting base, an aperture stop and a stop pressing ring provided in the present invention;
FIG. 3 is a front view of a lensmeter measurement system provided by the present invention;
FIG. 4 is a cross-sectional view of a lensmeter measurement system provided by the present invention.
In FIGS. 1-4:
1-a small-hole diaphragm, 2-a light source, 3-a diaphragm pressing ring, 4-a mounting seat, 5-an objective tube, 6-an objective, 7-an objective pressing ring, 8-a groove, 9-a diaphragm plate, 10-a mounting cylinder and 11-a measuring base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the utility model is to provide a light beam collimation mechanism, which ensures the light flux intensity and the light beam collimation property, improves the measurement precision and has high reliability.
Another core of the present invention is to provide a lensmeter measurement system comprising the beam collimation mechanism described above.
Referring to fig. 1 to 4, a beam collimating mechanism includes: light source 2, light beam transmission assembly, objective 6 and be used for adjusting objective 6 and the objective clamping ring 7 of light beam transmission assembly distance, set up the light through-hole of high accuracy on the light beam transmission assembly, light source 2 sets up in the top of light beam transmission assembly, and objective 6 sets up in the bottom of light beam transmission assembly, and objective 6 passes through objective clamping ring 7 to be installed in light beam transmission assembly.
It should be noted that the light beam transmission assembly is cylindrical as a whole, a light through hole is arranged on one side close to the light source 2, the objective lens 6 is arranged on the other side of the light beam transmission assembly, and the light emitted by the light source 2 is transmitted along the light beam transmission assembly, because the light beam transmission assembly is provided with the light through hole with higher precision.
The objective lens clamping ring 7 can adjust the distance between the objective lens 6 and the light beam transmission assembly in a rotating manner, for example, the objective lens clamping ring 7 can be rotated to continuously adjust the distance between the objective lens 6 and the light beam transmission assembly, and the adjustment rule can be according to a first adjustment rule: when the objective lens clamping ring 7 is rotated clockwise, the distance between the objective lens 6 and the light beam transmission assembly is reduced; when the objective lens clamping ring 7 is rotated counterclockwise, the distance between the objective lens 6 and the light beam transmission assembly is increased. It is also possible to follow a second regulation rule: when the objective lens clamping ring 7 is rotated anticlockwise, the distance between the objective lens 6 and the light beam transmission assembly is reduced; when the objective lens clamping ring 7 is rotated clockwise, the distance between the objective lens 6 and the light beam transmission component is increased.
The light beam collimation mechanism that this application provided is through setting up light beam transmission assembly between light source 2 and objective 6 to set up the light through-hole of high accuracy on light beam transmission assembly, guaranteed luminous intensity and light beam collimation nature, improved measurement accuracy, and can adjust objective 6 and light beam transmission assembly's interval through rotating objective clamping ring 7, rational in infrastructure, the reliability is high.
On the basis of the above embodiment, as a further preferable option, the light beam transmission assembly includes an objective lens barrel 5, an aperture diaphragm 1, a mounting seat 4 and a diaphragm pressing ring 3, the light through hole is disposed on the aperture diaphragm 1, the aperture diaphragm 1 is disposed between the mounting seat 4 and the diaphragm pressing ring 3, the mounting seat 4 is disposed at the top of the objective lens barrel 5, the objective lens 6 is disposed at the bottom of the objective lens barrel 5, and the light source 2 is disposed at the top of the mounting seat 4. The aperture diaphragm 1 comprises a diaphragm plate 9 and an installation cylinder 10, the diaphragm plate 9 is circular plate-shaped and is arranged on the upper end face of the installation cylinder 10, the plate face of the diaphragm plate 9 is perpendicular to the axis of the installation cylinder 10, and the light through hole is arranged in the center of the diaphragm plate 9 and is opposite to the light source 2.
In addition to the above embodiments, it is further preferable that the side surface of the mounting seat 4 is provided with a groove 8. The groove 8 is arranged opposite to the mounting hole of the lensmeter measuring system, so that the locking piece in the mounting hole can enter the groove 8, and the mounting seat 4 is fixed. Preferably, recess 8 is the V-arrangement groove, adjusts the interval between mount pad 4 and the light source 2 in advance, adjusts the sharp-pointed end of the back completion with the V-arrangement groove and the axis collineation setting of mounting hole, and the in-process that the retaining member got into V-arrangement recess 8 and continuously removed can drive the sharp-pointed end continuous motion of V-arrangement groove until the sharp-pointed end of V-arrangement groove and the axis collineation of mounting hole, guarantees the stability in aperture diaphragm 1 position.
In addition to the light beam collimating mechanism, the present invention further provides a lensmeter measuring system, which is characterized by comprising a measuring base 11 and the light beam collimating mechanism disclosed in any one of the embodiments, wherein the measuring base 11 is provided with a hollow structure, and the light beam collimating mechanism is provided in the hollow structure. The lensmeter measurement system that this application provided measurement accuracy is high, and structural reliability is high.
In order to facilitate the installation and fixation of the light beam transmission assembly, on the basis of the above embodiment, as a further preferred, the side surface of the measurement base 11 is provided with an installation hole, a fastening screw is arranged in the installation hole, and the installation hole is communicated with the hollow structure.
The upper portion and the lower portion of the side face of the measuring base 11 are respectively provided with a mounting hole, the mounting hole in the upper portion is over against a groove 8 in the side face of the mounting seat 4 of the light beam transmission assembly, the mounting hole in the lower portion is over against the side face of the objective lens barrel 5, when the upper portion fastening screw is fastened, the conical end of the upper portion fastening screw is pushed into the groove 8, the light source 2 and the mounting seat 4 can be tightly attached and reliably fixed while fastening, and the adjusting matching face of the light source 2 and the mounting seat 4 cannot be damaged. The lower fastening screw is used for fixing the position of the objective lens barrel 5, and is also fastened by the screw after the distance adjustment is finished.
The focal length adjusting mechanism of the objective lens 6 of the light beam collimation mechanism of the existing lensmeter measuring system is adjusted in the interior, and the adjustment is inconvenient, in order to solve the problems, on the basis of the embodiment, as further optimization, the lower end of the objective lens clamping ring 7 protrudes out of the hollow structure, and the accurate alignment adjustment can be realized by rotating the objective lens clamping ring 7 outside the measuring base 11 without being adjusted in the interior.
For the structure of other parts of the lensmeter measurement system, please refer to the prior art, and the description is omitted here.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The beam collimation mechanism and the lensmeter measurement system provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. A beam collimation mechanism, comprising: light source (2), light beam transmission assembly, objective (6) and be used for adjusting objective (6) with objective clamping ring (7) of light beam transmission assembly distance, set up the light through-hole of high accuracy on the light beam transmission assembly, light source (2) set up in the top of light beam transmission assembly, objective (6) set up in the bottom of light beam transmission assembly, objective (6) pass through objective clamping ring (7) install in the light beam transmission assembly.
2. The beam collimation mechanism of claim 1, wherein the beam transmission assembly comprises an objective lens barrel (5), an aperture diaphragm (1), a mounting seat (4) and a diaphragm pressing ring (3), the aperture hole is arranged on the aperture diaphragm (1), the aperture diaphragm (1) is arranged between the mounting seat (4) and the diaphragm pressing ring (3), the mounting seat (4) is arranged on the top of the objective lens barrel (5), the objective lens (6) is arranged on the bottom of the objective lens barrel (5), and the light source (2) is arranged on the top of the mounting seat (4).
3. A beam collimation mechanism as claimed in claim 2, wherein the side of the mount (4) is provided with a recess (8).
4. A lensmeter measurement system comprising a measurement base (11) and a beam collimation mechanism as claimed in any one of claims 1 to 3, the measurement base (11) being provided with a hollow structure, the beam collimation mechanism being provided in the hollow structure.
5. The lensmeter measurement system of claim 4, wherein the side of the measurement base (11) is provided with mounting holes in which fastening screws are arranged, the mounting holes communicating with the hollow structure of the measurement base (11).
6. The lensmeter measurement system of claim 4 wherein the lower end of the objective lens clamping ring (7) protrudes from the hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123298299.8U CN216559643U (en) | 2021-12-24 | 2021-12-24 | Light beam collimating mechanism and lensmeter measuring system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123298299.8U CN216559643U (en) | 2021-12-24 | 2021-12-24 | Light beam collimating mechanism and lensmeter measuring system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216559643U true CN216559643U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123298299.8U Active CN216559643U (en) | 2021-12-24 | 2021-12-24 | Light beam collimating mechanism and lensmeter measuring system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216559643U (en) |
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2021
- 2021-12-24 CN CN202123298299.8U patent/CN216559643U/en active Active
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