阅读说明：本技术 一种自适应变倍望远镜 (Self-adaptive zoom telescope ) 是由 刘超 王琼华 王迪 于 2019-10-10 设计创作，主要内容包括：本发明提出了一种自适应变倍望远镜,它由物镜固体透镜组、物镜可调焦透镜组、分划板、目镜可调焦透镜组、目镜固体透镜组、测距模组、物镜调焦控制模组和目镜调焦控制模组组成。确定观察物后,测距模组会测量当前观察物的位置,反馈给物镜调焦控制模组和目镜调焦控制模组。两控制模组会根据预设的电压值分别给内部的自适应变焦透镜施加电压,使望远镜清晰成像,此时望远镜的放大倍率为β<Sub>1</Sub>。再次按下测距模组按钮,两控制模组会重新给每个自适应变焦透镜分配电压值,此时望远镜的放大倍率为β<Sub>2</Sub>。本发明可实现望远镜自适应变倍功能。(The invention provides a self-adaptive zoom telescope, which consists of an objective lens solid lens group, an objective lens focusing lens group, a reticle, an eyepiece lens focusing lens group, an eyepiece lens solid lens group, a distance measuring module, an objective lens focusing control module and an eyepiece lens focusing control module. After the observation object is determined, the distance measurement module can measure the position of the current observation object and feed the position back to the objective lens focusing control module and the eyepiece focusing control module. The two control modules respectively apply voltage to the internal self-adaptive zoom lens according to a preset voltage value to enable the telescope to clearly image, and the magnification of the telescope is beta 1 . When the distance measuring module button is pressed again, the two control modules can distribute the voltage value to each self-adaptive zoom lens again, and the magnification of the telescope is beta 2 . The invention can realize the self-adaptive zooming function of the telescope.)

1. An adaptive zoom telescope, comprising: the device comprises an objective lens solid lens group, an objective lens focusing lens group, a reticle, an eyepiece lens focusing lens group, an eyepiece lens solid lens group, a distance measuring module, an objective lens focusing control module and an eyepiece lens focusing control module.

2. The adaptive zoom telescope of claim 1, wherein the distance measurement module is capable of measuring distance by laser, ultrasonic, infrared, etc.

3. The adaptive zoom telescope of claim 1, wherein the adaptive zoom lenses of the objective lens focusing assembly and the eyepiece lens focusing assembly are liquid lenses, including electrowetting-driven liquid lenses, dielectrophoretic force-driven liquid lenses, mechanical motor-driven elastic thin film liquid lenses, magnetic control liquid lenses, electronic muscle-driven liquid lenses, and the like.

4. The adaptive zoom telescope of claim 1, wherein the objective lens focusing lens set is focused by the objective lens focusing control module to obtain an image distance d₃Keeping the same; after the ocular focusing lens group is focused by the ocular focusing control module, the object distance d₄Remain unchanged.

5. The adaptive zoom telescope of claim 1, wherein the number M of adaptive zoom lenses in the objective lens adjustable focusing lens group₁Not less than 2; the number M of the self-adaptive zoom lenses in the eyepiece adjustable focus lens group₂≥2。

One, the technical field

The invention relates to a telescope, in particular to an adaptive zoom telescope.

Second, background Art

A telescope is an optical instrument that uses groups of lenses, mirrors, and other optical devices to view remote objects. The telescope can not only amplify objects at a distance, so that human eyes can distinguish details with smaller angular distance. Meanwhile, the objective lens of the telescope can collect light beams with a diameter much larger than that of the pupil and send the light beams into human eyes, so that an observer can see dark and weak objects which cannot be seen originally. Galileo invented the first two-mirror telescope in the world in 1609, which was also the first telescope applied to scientific research. Through the development of over 400 years, the telescope has more and more powerful functions and longer observation distance. At present, the telescope is widely applied, and comprises military combat, security and police, navigation patrol, outdoor travel, field exploration, sports events, electric power safety patrol, sightseeing and singing meetings, forestry investigation, industrial patrol, archaeological research, railway route selection, national resource investigation and the like.

Specifically, in the field of astronomy and cosmos research, the best known contemporary members are the Hubo space telescope and the Chinese "Tianyan" radio telescope, which provide valuable research data for human beings to explore the cosmos, discover and verify new physical laws; in the field of military warfare, a high-resolution and light-weight telescope with a night vision function is often needed; in the civil field, people also have urgent need for a portable telescope with small volume and variable focus. However, in the design of the traditional civil and military telescope, the telescope is formed by combining a plurality of solid lenses, and the focusing mode is also divided into inner focusing and outer focusing. No matter which focusing mode, can avoid using mechanical moving parts, if practical in the war, the time is the life, and quick automatic zoom focusing is particularly urgent. Meanwhile, the solid element is heavy and easy to wear, and the requirement of light-weight individual combat cannot be met at present.

Third, the invention

The invention provides a self-adaptive zoom telescope. As shown in the attached figure 1, the self-adaptive zoom telescope is composed of an objective lens solid lens group, an objective lens focusing lens group, a reticle, an eyepiece lens focusing lens group, an eyepiece lens solid lens group, a distance measuring module, an objective lens focusing control module and an eyepiece lens focusing control module.

Firstly, when the telescope is in an initial state, the objective focusing control module sets an initial voltage value for the adaptive zoom lens in the objective focusing lens group, and meanwhile, the eyepiece focusing control module also sets an initial voltage value for the adaptive zoom lens in the eyepiece focusing lens group, so that the telescope can clearly image. Then, the object to be observed by the telescope is adjusted, after the object to be observed is determined, the distance measurement module button is pressed down, and distance measurement is carried outThe module can measure the specific position of the current observed object and feeds back the specific position to the objective lens focusing control module and the eyepiece focusing control module. At this time, the two modules respectively input different voltage values to the internal adaptive zoom lens according to the preset voltage values, so that the telescope can clearly image again, as shown in fig. 2. At the moment, the focal lengths of the telescope objective lens and the ocular lens are respectively F₁And F₂Magnification of image is beta₁. Then, the distance measurement module button is pressed again, the objective lens focusing control module and the eyepiece lens focusing control module can distribute voltage values to each self-adaptive zoom lens again, and the focal lengths of the objective lens and the eyepiece lens of the telescope are respectively F₃And F₄Magnification of image is beta₂As shown in fig. 3.

Taking the magnification shown in FIG. 2 as an example, the power of the solid lens group of the objective lens can be set to be

The focal length of the objective lens focusing lens group can be prefabricated and stored in the objective lens focusing control module group, and the focal power of the objective lens focusing lens group is

The main surface (main surface 1) of the solid lens group of the objective lens and the main surface (main surface 2) of the adjustable focusing lens group of the objective lens are separated by d₁Focal length F of telescope objective lens₁Can be expressed as:

F₁＝(φ₁+φ₂-d₁φ₁φ₁)^-1(1)

similarly, the power of the eyepiece solid lens group is

The focal power of the eyepiece focusing lens group is

The primary surface (primary surface 3) of the eyepiece focusing lens group and the primary surface (primary surface 4) of the eyepiece solid lens group are spaced by d₂Focal length F of eyepiece of telescope₂Can be expressed as：

F₂＝(φ₃+φ₄-d₂φ₃φ₄)^-1(2)

Then, the magnification of the image at this time is β₁＝-F₁/F₂(ii) a Similarly, the magnification beta shown in FIG. 3₂＝-F₃/F₄。

In the invention, under each telescopic distance, a plurality of groups of voltage output values can be prefabricated by the objective lens focusing control module and the eyepiece lens focusing control module, so that a plurality of groups of zoom magnifications are arranged at each distance. When the two control modules prefabricate voltage, for the telescope objective lens, in the zooming prefabrication process, the image plane distance is required to be ensured to be unchanged; for the telescope eyepiece, in the prefabrication process of zooming, the object plane distance is required to be ensured to be unchanged, and the relay image on the reticle can be ensured to be stable by the arrangement.

Preferably, the distance measurement module can adopt laser ranging, ultrasonic ranging, infrared ranging and the like.

Preferably, the adaptive zoom lens in the objective lens group and the eyepiece lens group is a liquid lens, and includes an electrowetting-driven liquid lens, a dielectrophoretic force-driven liquid lens, a mechanical motor-driven elastic thin-film liquid lens, a magnetic-control liquid lens, an electronic muscle-driven liquid lens, and the like.

Preferably, after the objective lens focusing lens group is focused by the objective lens focusing control module, the image distance d is obtained₃Keeping the same; after the ocular focusing lens group is focused by the ocular focusing control module, the object distance d₄Remain unchanged.

Preferably, the number M of the adaptive zoom lenses in the objective lens adjustable focusing lens group₁Not less than 2; the number M of the self-adaptive zoom lenses in the eyepiece adjustable focus lens group₂≥2。

Description of the drawings

FIG. 1 is a structural diagram of an adaptive zoom telescope.

FIG. 2 shows an image at a magnification of β₁Telescope principle diagram.

FIG. 3 is a drawing showing an image at a magnification of β₂Telescope principle diagram.

FIG. 4 is a table showing the pre-manufactured driving voltages and zoom magnifications of four adaptive zoom lenses in the example.

The reference numbers in the figures are as follows:

1 objective solid lens group, 2 objective focusing lens group, 3 reticle, 4 eyepiece focusing lens group, 5 eyepiece solid lens group, 6 range finding modules, 7 objective focusing control module group, 8 eyepiece focusing control module group.

It should be understood that the above-described figures are merely schematic and are not drawn to scale.

Fifth, detailed description of the invention

The following describes an embodiment of the adaptive zoom telescope proposed by the present invention in detail, and further describes the present invention. It should be noted that the following examples are only for illustrative purposes and should not be construed as limiting the scope of the present invention, and that the skilled person in the art may make modifications and adaptations of the present invention without departing from the scope of the present invention.

A self-adaptive zoom telescope is composed of an objective lens solid lens group, an objective lens focusing lens group, a reticle, an eyepiece lens focusing lens group, an eyepiece lens solid lens group, a distance measurement module, an objective lens focusing control module and an eyepiece lens focusing control module.

One embodiment of the invention is: the self-adaptive zoom lens in the telescope objective lens and the eyepiece is a 39N0 liquid lens of Corning corporation of America, and the distance measuring module is a laser distance measuring instrument. The objective lens solid lens group consists of three solid lenses, the focal power is 5D, and two liquid lenses, namely a liquid lens 1 and a liquid lens 2, are arranged in the objective lens focusing lens group; the eyepiece solid lens group comprises two solid lenses, the focal power is 8D, and two liquid lenses, namely a liquid lens 3 and a liquid lens 4, are arranged in the eyepiece focusing lens group.

Firstly, setting an initial value for a telescope, wherein the focal power of an objective lens focusing lens group is 4D, the interval between the focal power of the objective lens focusing lens group and a main surface of a solid lens group is about 0.04m, and the total focal power of the telescope objective lens is 8.2D; the focal power of the eyepiece focusing lens group is 5D, the interval between the eyepiece focusing lens group and the main surface of the solid lens group is about 0.02m, and the total focal power of the eyepiece of the telescope is 12.2D, so that the magnification of the telescope is about 1.5 times. Realign the object that will observe, press the laser range finder button, the measured object is about 800m, and objective focusing control module and eyepiece focusing control module can reset the voltage of four liquid lens this moment, are 23V, 60V,55V and 32V respectively, and the magnification of zooming at this moment is about 4.5 times. The laser range finder button is pressed again, the voltage is redistributed by the objective lens focusing control module and the eyepiece lens focusing control module, the voltages are respectively 34V, 55V,45V and 39V, and the zoom magnification at the moment is about 7.4 times. The subsequent operations are as above, and fig. 4 shows the results of five different sets of voltage distribution and zoom magnification experiments under the same observation distance.