TWI623729B - Lens detection system and related methods - Google Patents

Abstract

The invention relates to a lens detection system and related method, which performs loose detection of at least one lens combination inside a lens to be tested. The lens detection system includes at least one probe, at least one lens to be tested, and at least one receiving unit. A detection unit and a warning unit; the lens detection system and related methods of the present invention are mainly by inputting ultrasonic wave and other energy wave signals from one side of the lens to be tested into the lens to be tested, and the other from the lens to be tested The side is received by the receiving unit to effectively detect the spectrum decay result of the ultrasonic signal after the lens combination inside the lens to be tested, and the difference between the ultrasonic spectrum of the lens to be compared with the good or bad, which really saves the lens detection time and cost. And achieve the advantages of non-destructive lens inspection purposes.

Description

Lens detection system and related methods

The invention relates to a lens detection system and related methods, in particular to a lens detection system and a detection method using ultrasonic waves and other energy waves to detect the looseness of the lens combination inside the lens.

Press, the general lens assembly procedure is to assemble a plurality of lenses into the lens barrel in order, and in order to fix the lens at the predetermined position of the lens barrel, the practice often uses glue to secure it; Sometimes, it is not possible to use glue to secure the lens in the lens barrel, so the lens is prone to lens displacement or looseness after being subjected to vibration test, which leads to optical axis deviation; the problem of detecting lens looseness at the current optical factory is due to After the assembly of the overall lens is completed, the detection action is performed, which cannot effectively and instantly detect whether the optical axis is loose due to vibration; as a result, the problem of optical axis shift caused by poor lens quality will eventually lead to the scrapping of the entire group of cameras , Which virtually increases the cost of assembly and manufacturing.

In view of this, one of the inventors applied for "Integrated Vibration Detection Method and Device" No. I554749 on August 6, 103 of the Republic of China to solve the above problems. The integrated vibration detection device is mainly It includes a testing jig and a testing machine installed on a vibrating machine, wherein the testing jig includes a lens fixing module to fix the lens to be tested; a testing chart is installed on the side of the lens to be tested, the testing chart has More than one detection pattern; an image forming unit, installed on the side of the lens to be tested relative to the detection pattern to sense the light reflected by the detection pattern and form A detection image; when the light passes through the lens to be tested and irradiates the detection image, the detection image reflects the light to the image forming unit to form an image. By comparing the images of the detection image with the detection machine, it can detect whether the optical axis of the lens is shifted due to vibration ; However, the vibration detection described in this patent is mainly a destructive detection method. Although vibration detection can increase the detection rate of lenses that are not yet strong, it is also easy to destroy the firmness of the lens; furthermore, vibration The testing time spent in testing is too long and does not meet the efficiency requirements of the factory output; therefore, how to effectively use innovative hardware design to allow the testing personnel to effectively avoid the above-mentioned shortcomings of the previous technology when performing lens looseness detection, indeed To achieve the goal of saving lens inspection time and cost and achieving non-destructive lens inspection, it is still a problem that the lens inspection system and other related industry developers and related researchers need to continue to work hard to overcome and solve.

Now, in view of the fact that the above lens lens looseness detection system still has many deficiencies in actual implementation, it is a tireless spirit, and it is improved by its rich professional knowledge and years of practical experience , And researched and created the invention accordingly.

The main purpose of the present invention is to provide a lens detection system and related methods, in particular, a lens detection system and a detection method using ultrasonic and other energy waves to detect the looseness of the lens assembly inside the lens, mainly by using ultrasonic and other energy waves The signal is input into the lens under test from one side of the lens under test, and is received by the receiving unit on the other side of the lens under test, effectively detecting the spectrum decay results of the ultrasonic signal after the lens combination inside the lens under test, and the comparison The difference between the ultrasonic spectrum of the lenses to be tested is really good to save the time and cost of lens inspection, and to achieve the purpose of non-destructive lens inspection.

In order to achieve the above-mentioned implementation objective, the present inventor proposes a lens detection system that performs loose detection of at least one lens combination inside the lens to be tested. The lens detection system is At least one probe, at least one lens to be tested, at least one receiving unit, one detecting unit, and one warning unit; at least one probe is electrically connected to a host, and a transmitting unit is provided inside the probe, wherein the transmitting unit is output A first energy wave signal; at least one lens to be tested is arranged on at least one fixed unit, and the fixed unit is arranged on one side of the probe, wherein the first energy wave signal output by the probe is approached by one end of the probe from the lens to be measured Enter the lens under test; at least one receiving unit is located on the other side of the lens under test corresponding to the transmitting unit. The receiving unit receives the second energy wave signal output from the other end of the lens under test; the warning unit is electrically connected The detection unit, when the warning unit receives the signal output by the detection unit, the warning unit outputs a warning signal.

In the lens detection system as described above, the host is an ultrasonic device, and the first energy wave signal emitted by the built-in transmitter unit electrically connected to the probe is an ultrasonic signal.

The lens detection system as described above, wherein the second energy wave signal is the ultrasonic signal output by the first energy wave signal after passing through the lens combination inside the lens to be tested.

The lens detection system as described above, wherein the reference spectrum is converted by a reference energy wave signal.

The lens detection system as described above, wherein the reference energy wave signal is an ultrasonic signal output after the first energy wave signal passes through a reference lens.

The lens detection system as described above, wherein the reference lens is a lens with the same appearance as the lens to be tested and without loosening of the internal lens combination.

In the lens detection system described above, the detection unit may be further electrically connected to a storage unit, and the storage unit is used to store the reference spectrum.

The lens detection system as described above, wherein the warning signal is sound, light, One type of image, text or vibration, or a combination of two or more.

In addition, in order to achieve the objective of the lens detection system, the inventors have developed the following implementation technology to perform loose detection of at least one lens combination inside the lens to be tested; first, a reference lens with no abnormal internal lens combination looseness Mounted on a fixed unit; then, a transmitting unit is correspondingly arranged on one side of the fixed unit, the transmitting unit outputs a first energy wave signal, wherein the first energy wave signal enters the reference from the reference lens close to one end of the transmitting unit Lens; connected, a receiving unit is provided on the other side of the fixed unit corresponding to the transmitting unit, the receiving unit receives the reference energy wave signal output from the other end of the reference lens; then, prepares a detection of electrical connection with the receiving unit Unit, the detection unit converts the reference energy wave signal into a reference spectrum; then, at least one lens to be tested is correspondingly mounted on at least one fixed unit; then, the at least one built-in transmitter unit of the probe is used to approach the lens to be measured One end of the probe transmits the first energy wave signal into the lens under test; then, at least one receiving unit is used to receive the second energy wave signal output from the other end of the lens under test; then, the receiving unit is used to receive the receiving unit The second energy wave signal is correspondingly converted into a spectrum; then, the detection unit is used to compare the spectrum with the reference spectrum. When the comparison result is inconsistent, the detection unit outputs a signal to a warning unit; finally, the warning unit is After receiving the signal output by the detection unit, a warning signal is issued.

The lens detection method as described above, wherein the reference lens is a lens with the same appearance as the lens to be tested and no loose inner lens combination.

The lens detection method as described above, wherein the host is an ultrasonic device, and the first energy wave signal emitted by the built-in transmitter unit electrically connected to the probe is an ultrasonic signal.

The lens detection method as described above, wherein the reference energy wave signal is the ultrasonic signal output after the first energy wave signal passes through the lens combination inside the reference lens.

The lens detection method as described above, wherein the detection unit may be further electrically connected to a storage unit to store the reference spectrum.

According to the lens detection method described above, the second energy wave signal is the ultrasonic signal output after the first energy wave signal passes through the lens combination inside the lens to be tested.

The lens detection method as described above, wherein the warning signal is presented as one type or a combination of two or more of sound, light, image, text or vibration.

In this way, the lens detection system and related methods of the present invention are mainly by inputting ultrasonic and other energy wave signals from one side of the lens to be tested into the lens to be tested and being received by the receiving unit on the other side of the lens to be tested, Effectively detect the spectrum decay result of the ultrasonic signal after the lens combination inside the lens under test, and compare the ultrasonic spectrum difference between the good and bad lenses under test, which truly saves the lens detection time and cost, and achieves a non-destructive lens Advantages such as detection purposes; in addition, the lens detection system and related methods of the present invention mainly output signals to the lens to be tested by high-frequency vibration of ultrasonic waves, so that the contact surface between the lens barrel of the lens to be tested and the lens generates relative vibration displacement Generate different signal spectrum, and then collect the signal spectrum by the receiving unit, and then can detect the lens under test with abnormal lens combination immediately before the assembly of the entire group of cameras, and indeed avoid the optical axis shift caused by poor lens quality The problem caused the entire group of cameras to be scrapped, resulting in shortcomings of increased assembly and manufacturing costs.

(1) ‧‧‧Lens inspection system

(11) ‧‧‧Probe

(111) ‧‧‧ Launch unit

(12) ‧‧‧Fixed unit

(13) ‧‧‧Receiving unit

(14) ‧‧‧Detection unit

(15) ‧‧‧Warning unit

(2) ‧‧‧Host

(3) ‧‧‧ lens to be tested

(31) ‧‧‧Reference lens

(E ₁ ) ‧‧‧First energy wave signal

(E ₂ ) ‧‧‧Second Energy Wave Signal

(E _R ) ‧‧‧Reference energy wave signal

Figure 1: Schematic diagram of the system setup of a preferred embodiment of the lens detection system of the present invention

Figure 2: Schematic diagram of reference spectrum detection of a preferred embodiment of the lens detection system of the present invention

Figure 3: Flow chart of the steps of the lens detection method of the present invention

In order to facilitate your examination committee to understand the technical features, content, advantages and achievable effects of the present invention, the present invention is described in detail in conjunction with the drawings and in the form of expressions of the embodiments, and the drawings used therein, Its purpose is only for illustration and supplementary description, and may not be the true scale and precise configuration after the implementation of the present invention, so it should not be interpreted and limited to the relationship between the scale and the configuration of the attached drawings, and the scope of the present invention in the actual implementation is limited , He Xianming.

First of all, please refer to FIG. 1 and FIG. 2, which is a schematic diagram of the system setup of a preferred embodiment of the lens detection system of the present invention, and a schematic diagram of reference spectrum detection, in which the lens detection system (1) of the present invention performs at least The looseness detection of the lens assembly inside the lens to be tested (3) at least includes: at least one probe (11), which is electrically connected to a host (2), and a transmitting unit (111) is provided inside the probe (11) , Where the transmitting unit (111) outputs a first energy wave signal (E ₁ ); in addition, the host (2) is a supersonic device, and the built-in transmitting unit (11) of the probe (11) electrically connected thereto ( 111) The transmitted first energy wave signal (E ₁ ) is an ultrasonic signal; in a preferred embodiment of the present invention, the host (2) is an ultrasonic device, which is electrically connected to the host (2) The inner part of the connected probe (11) is provided with a transmitting unit (111) for transmitting the first energy wave signal (E ₁ ) of the ultrasonic signal; at least one lens (3) to be tested is arranged on at least one On the fixing unit (12), the fixing unit (12) is arranged on one side of the probe (11), wherein the first energy wave signal (E ₁ ) output by the probe (11) is approached by the lens (3) to be tested ( 11) One end enters into the lens to be tested (3); in a preferred embodiment of the present invention, a fixed unit (12) is set on the right side of the probe (11), the built-in transmitter of the probe (11) The first energy wave signal (E ₁ ) of the ultrasonic signal emitted by the unit (111) enters the lens under test (3) through the left end of a lens under test (3); at least one receiving unit (13) is Corresponding to the probe (11) and arranged on the other side of the lens to be tested (3), the receiving unit (13) receives the second energy wave signal (E ₂ ) output from the other end of the lens to be tested (3); The second energy wave signal (E ₂ ) is the ultrasonic signal output by the first energy wave signal (E ₁ ) after passing through the lens combination inside the lens under test (3); in a preferred embodiment of the present invention, A receiving unit (13) is arranged on the right side of the lens under test (3) to receive the second energy wave signal (E ₂ ) output by the right end of the lens under test (3), wherein the second energy wave signal (E ₂ ) It is the ultrasonic signal output by the first energy wave signal (E ₁ ) entered from the left end of the lens under test (3) through the lens combination inside the lens under test (3); however, it must be noted that the above probe (11), the number of the lens to be tested (3), the fixed unit (12), and the receiving unit (13) are for convenience of description, and are not limited to the scope of the present invention, and those skilled in the art should know the difference The number of the probe (11), the lens to be tested (3), the fixed unit (12), and the receiving unit (13), as long as it matches the energy wave signal emitted by the probe (11) to the fixed unit (12) to be tested The lens (3), and the energy wave signal output by the lens (3) to be tested is received by the receiving unit (13) The reception does not affect the actual implementation of the invention; a detection unit (14) is electrically connected to the receiving unit (13), and the detection unit (14) is the second energy wave signal received by the receiving unit (13) (E ₂ ), and convert the second energy wave signal (E ₂ ) into a spectrum to compare with the reference spectrum built in the detection unit (14). When the comparison result is inconsistent, the detection unit (14) is Output a signal; in addition, the reference spectrum is converted by a reference energy wave signal (E _R ), where the reference energy wave signal (E _R ) is the first energy wave signal (E ₁ ) after passing a reference lens (31) The output ultrasonic signal, and the reference lens (31) is a lens with the same appearance as the lens to be tested (3) and no loose internal lens combination; furthermore, the detection unit (14) can be further electrically connected to a storage Unit (not shown in the figure), the storage unit is used to store the reference spectrum; in a preferred embodiment of the present invention, the reference spectrum is generated in the same way as the lens (3) to be tested (for example: the same The reference lens (31) of the model or the same lens combination) is mounted on the fixed unit (12); then, the ultrasound unit (111) built in the probe (11) emits ultrasound toward the left end of the reference lens (31) The first energy wave signal (E ₁ ) of the signal enters the inside of the reference lens (31); then, a receiving unit (13) is provided on the right side of the reference lens (31) to receive the ultrasonic signal output from the right end of the reference lens (31) Reference energy wave signal (E _R ), and transfer the reference energy wave signal (E _R ) to the detection unit (14); finally, the detection unit (14) converts the reference energy wave signal (E _R ) into a reference spectrum and Stored in the storage unit, that is, the collection of the reference spectrum is completed, where the detection unit (14) can be, for example but not limited to a computer; however, it must be noted that the operation method of converting the reference energy wave signal (E _R ) into the reference spectrum has The well-known knowledge in the conventional art is not the focus of the present invention and will not be described here; in addition, the detection unit (14) converts the second energy wave signal (E ₂ ) received by the receiving unit (13) After the spectrum, the spectrum is compared with the reference spectrum. When the comparison result is inconsistent, the detection unit (14) sends a signal to the warning unit (15); and a warning unit (15) is electrically connected The detection unit (14), when the warning unit (15) receives the signal output by the detection unit (14), the warning unit (15) outputs a warning signal; in addition, the warning signal is sound, light, image, text or vibration One of these types or a combination of two or more; in a preferred embodiment of the present invention, the warning unit (15) can be, for example but not limited to, a liquid crystal display, when the warning unit (15) of the liquid crystal display receives When the signal from the detection unit (14) is sent, the warning unit (15) outputs a warning signal in the form of a combination of image and text to warn a tester There is information about the looseness of the lens inside the lens under test (3).

Furthermore, in order for your reviewing committee to have a more in-depth and specific understanding of the lens inspection system (1) of the present invention, please refer to FIG. 3 again, which is a flowchart of steps of the lens inspection method of the present invention. The lens detection method is to detect the looseness of the lens combination inside at least one lens (3) to be tested; the lens detection method of the present invention mainly includes the following steps: Step one (S1): a reference lens without abnormal looseness of the inner lens combination (31) Mounted on a fixed unit (12); in addition, the reference lens (31) is the same form as the lens to be tested (3) (for example: a lens of the same model or the same lens combination) and no internal lens combination Loose lens in abnormal situation; Step 2 (S2): A probe (11) electrically connected to a host (2) is correspondingly provided on one side of the fixed unit (12), and a transmitter unit ( 111), the transmitting unit (111) outputs a first energy wave signal (E ₁ ), wherein the first energy wave signal (E ₁ ) enters the reference lens from the reference lens (31) near one end of the transmitting unit (111) (31); In addition, the host (2) is an ultrasonic device, and the first energy wave signal (E ₁ ) emitted by the transmitting unit (111) built in the probe (11) electrically connected to it is: Ultrasonic signal; in a preferred embodiment of the present invention, the host (2) is an ultrasonic device, and the probe (11) electrically connected thereto is provided with a first energy for emitting an ultrasonic wave The transmitting unit (111) of the wave signal (E ₁ ); Step three (S3): A receiving unit (13) is provided on the other side of the fixed unit (12) corresponding to the probe (11). The receiving unit (13) receives The reference energy wave signal (E _R ) output from the other end of the reference lens (31); in addition, the reference energy wave signal (E _R ) is the first energy wave signal (E ₁ ) passing through the inside of the reference lens (31) Ultrasonic signal output after lens combination; in a preferred embodiment of the present invention, the receiving unit (13) is disposed on the right side of the fixed unit (12) to receive the output from the right end of the reference lens (31) Reference energy wave signal (E _R ), where the reference energy wave signal (E _R ) is the first energy wave signal (E ₁ ) entered from the left end of the reference lens (31) through the lens combination inside the reference lens (31). Output ultrasonic signal; Step 4 (S4): Prepare a detection unit (14) electrically connected to the receiving unit (13), the detection unit (14) converts the reference energy wave signal (E _R ) into a reference spectrum In addition, the detection unit (14) can be further electrically connected to a storage unit (not shown in the figure) to store the reference spectrum; in a preferred embodiment of the present invention, the detection unit (14) is the receiving unit ( 13) The collected reference energy wave signal (E _R ) is converted into a reference spectrum and stored in a storage unit, wherein the detection unit (14) can be, for example but not limited to It is designated as a computer; however, it must be noted that the operation method of converting the reference energy wave signal (E _R ) to the reference spectrum is well-known in the art and is not the focus of the present invention, and will not be repeated here. Repeat; Step 5 (S5): Mount at least one lens (3) to be tested on at least one fixing unit (12); in a preferred embodiment of the present invention, the lens detection system (1) has a fixing Unit (12), on which a lens (3) to be tested is correspondingly mounted; Step 6 (S6): Use at least one probe (11) built-in transmitting unit (111) corresponding to the lens (3) to approach the probe ( 11) One end emits the first energy wave signal (E ₁ ) into the lens under test (3); in a preferred embodiment of the present invention, a probe (11) is provided on the left side of the fixed unit (12) , And the built-in transmitting unit (111) of the probe (11) can transmit a first energy wave signal (E ₁ ), and the first energy wave signal (E ₁ ) enters the test from the left end of the lens (3) to be tested Inside the lens (3); Step 7 (S7): Use at least one receiving unit (13) to receive the second energy wave signal (E ₂ ) output from the other end of the lens (3) under test; in addition, the second energy The wave signal (E ₂ ) is the ultrasonic signal output after the first energy wave signal (E ₁ ) passes through the lens combination inside the lens under test (3); in a preferred embodiment of the present invention, a receiving unit (13) is arranged on the right side of the fixed unit (12) to receive the second energy wave signal (E ₂ ) output by the right end of the lens (3) under test, wherein the second energy wave signal (E ₂ ) is the first An energy wave signal (E ₁ ) is output by the combination of the lenses inside the lens under test (3) and the ultrasonic signal output; Step 8 (S8): Use the detection unit (14) to receive the second energy received by the receiving unit (13) The wave signal (E ₂ ) is correspondingly converted into a spectrum; in a preferred embodiment of the invention, the detection unit (14) converts the second energy wave signal (E ₂ ) received by the receiving unit (13) into a spectrum ; However, it must be noted that the operation of the conversion of the second energy wave signal (E ₂ ) into the spectrum is well known in the art and is not the focus of the present invention, so it will not be repeated here; steps Nine (S9): The detection unit (14) is used to compare the spectrum with the reference spectrum. When the comparison result is inconsistent, the detection unit (14) outputs a signal to a warning unit (15); In a preferred embodiment, the detection unit (14) compares the spectrum converted by the second energy wave signal (E ₂ ) with the reference spectrum stored in the storage unit in advance. When the comparison result of the spectrum and the reference spectrum is inconsistent , The detection unit (14) will transmit a signal to the warning unit (15); and step ten (S10): the warning unit (15) sends out a warning signal after receiving the signal output from the detection unit (14); in addition, the warning The signal is based on sound, light, image One type of vibration or vibration or a combination of two or more; in a preferred embodiment of the present invention, the warning unit (15) can be, for example but not limited to, a liquid crystal display, when the warning unit (15) of the liquid crystal display When the signal from the detection unit (14) is received, the warning unit (15) outputs a warning signal in the form of a combination of image and text, to warn a tester about the abnormal looseness of the lens inside the lens (3) to be tested, As can be seen from the above implementation description, compared with the prior art, the lens detection system and related methods of the present invention have the following advantages:

1. The lens detection system and related methods of the present invention are mainly by inputting ultrasonic and other energy wave signals from one side of the lens to be tested into the lens to be tested, and the other side of the lens to be tested is received by the receiving unit, which is effective Detecting the spectrum decay result of the ultrasonic signal after the lens combination inside the lens to be tested, and comparing the ultrasonic spectrum difference between the good and bad lenses to be tested, indeed saving the time and cost of lens detection and achieving non-destructive lens detection Purpose and other advantages.

2. The lens detection system and related methods of the present invention mainly output signals to the lens to be tested by high-frequency vibration of ultrasonic waves, so that the contact surface of the lens barrel of the lens to be tested and the lens generate relative vibration displacement to generate different signal spectrums After the signal spectrum is collected and compared by the receiving unit, the lens to be tested with abnormal lens combination can be detected in real time before the assembly of the entire group of cameras, which really avoids the problem of optical axis shift caused by poor lens quality. The camera is scrapped, resulting in shortcomings of increased assembly and manufacturing costs.

In summary, the lens detection system and related methods of the present invention can indeed achieve the expected use effect through the disclosed embodiments, and the present invention has not been disclosed before the application, and has fully complied with the patent law. Regulations and requirements. I filed an application for a patent for invention in accordance with the law, pleaded for the review, and granted the patent.

However, the illustrations and descriptions disclosed above are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention; those who are familiar with the art, according to the characteristic scope of the present invention, do other things Equivalent changes or modifications should be regarded as not departing from the design scope of the present invention.

Claims (15)

A lens detection system is used for loose detection of at least one lens combination inside a lens to be tested. The lens detection system at least includes: at least one probe, which is electrically connected to a host, and a transmitter unit is provided inside the probe, wherein The transmitting unit outputs a first energy wave signal; at least one lens under test is arranged on at least one fixed unit, the fixed unit is arranged on one side of the probe, wherein the first energy wave signal output by the probe is The end of the lens under test is close to one end of the probe into the lens under test; at least one receiving unit corresponding to the probe is provided on the other side of the lens under test, the receiving unit receives the other end of the lens under test A second energy wave signal output by the unit; a detection unit electrically connected to the receiving unit, the detection unit receives the second energy wave signal received by the receiving unit and converts the second energy wave signal into a The frequency spectrum is compared with the reference frequency spectrum corresponding to the built-in of the detection unit. When the comparison result is inconsistent, the detection unit outputs a signal; and a warning unit is electrically connected to the detection unit, when the warning unit receives the When detecting the signal output by the unit, the warning unit outputs a warning signal. The lens detection system as described in item 1 of the patent application scope, wherein the host is an ultrasonic device, and the first energy wave signal emitted by the built-in transmitter unit electrically connected to the probe is an ultrasonic signal . The lens detection system as described in item 1 or 2 of the patent application, wherein the second energy wave signal is an ultrasonic signal output by the first energy wave signal after passing through the lens combination inside the lens to be tested. The lens detection system as described in item 1 of the patent application scope, wherein the reference spectrum is converted by a reference energy wave signal. The lens detection system as described in item 4 of the patent application range, wherein the reference energy wave signal is an ultrasonic signal output after the first energy wave signal passes through a reference lens. The lens detection system as described in item 5 of the patent application scope, wherein the reference lens is a lens with the same appearance as the lens to be tested and without loosening of the internal lens combination. The lens detection system as described in item 1 or 4 of the patent application scope, wherein the detection unit is further electrically connected to a storage unit, and the storage unit is used to store the reference spectrum. The lens detection system as described in item 1 of the patent application scope, wherein the warning signal is presented in one of sound, light, image, text or vibration or a combination of two or more. A lens detection method is used to detect the looseness of the lens combination inside at least one lens to be tested. The lens detection method includes the following steps: Step 1: a reference lens with no abnormal internal lens combination looseness is mounted on a fixed unit ; Step 2: A probe that is electrically connected to a host is correspondingly provided on one side of the fixed unit, and a transmitting unit is provided inside the probe, the transmitting unit outputs a first energy wave signal, wherein the first energy wave The signal enters the reference lens from the reference lens near one end of the transmitting unit; Step 3: A receiving unit is provided on the other side of the fixed unit corresponding to the probe, the receiving unit receives the other end from the reference lens The output reference energy wave signal; Step 4: Prepare a detection unit electrically connected to the receiving unit, the detection unit converts the reference energy wave signal into a reference spectrum; Step 5: Map at least one lens to be tested Erected on at least one of the fixed units; Step 6: Use at least one of the built-in transmitting units of the probe to emit the first energy wave signal into the lens under test toward the end of the lens under test near the probe; Step 7 : Using at least one of the receiving units to correspondingly receive the second energy wave signal output from the other end of the lens under test; Step 8: using the detection unit to correspondingly convert the second energy wave signal received by the receiving unit into a frequency spectrum; Step 9: Use the detection unit to compare the spectrum with the reference spectrum. When the comparison result is inconsistent, the detection unit outputs a signal to a warning unit; and Step 10: The warning unit receives the detection unit A warning signal is issued after the output signal. The lens detection method as described in item 9 of the patent application scope, wherein the reference lens is a lens with the same appearance as that of the lens to be tested and no loose inner lens combination. The lens detection method as described in item 9 of the patent application scope, wherein the host is an ultrasonic device, and the first energy wave signal transmitted by the built-in transmitter unit electrically connected to the probe is an ultrasonic signal . The lens detection method as described in item 9 or 11 of the patent application scope, wherein the reference energy wave signal is an ultrasonic signal output by the first energy wave signal after passing through a lens combination inside the reference lens. The lens detection method as described in item 9 of the patent application scope, wherein the detection unit is further electrically connected to a storage unit to store the reference spectrum. The lens detection method as described in item 9 or 11 of the patent application scope, wherein the second energy wave signal is an ultrasonic signal output after the first energy wave signal passes through the lens combination inside the lens to be tested. The lens detection method as described in item 9 of the patent application scope, wherein the warning signal is presented as one of sound, light, image, text or vibration or a combination of two or more.