JP3137220U - Light measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light measuring device convenient for carrying.
An analog circuit in which a printed circuit board on which an optical fiber connector, an optical coupler, and an optical measurement module are mounted is installed in a housing having an accommodation space formed therein and connected to the optical measurement module. A digital converter 60, an operation switch 70, and a display device 80 are provided.
Furthermore, the three-stage changeover switch 90 improves the measurement accuracy by switching the measurement wavelength to three stages according to the wavelength of the optical fiber to be measured.
[Selection] Figure 1

Description

The present invention relates to an optical measurement device. In particular, the present invention relates to an optical measurement device that is used for measuring invisible light for communication, and that is small and portable.

A known optical measuring device used for measuring invisible light for communication is very expensive and is not easy to carry. Usually, an optical fiber is connected to one end of the optical fiber and further measured by the light measuring device to determine whether the communication signal is good or bad.
To ensure the quality of wireless communication, workers need to go to various places and perform measurement and maintenance.
However, the known optical measuring device has a large volume, is inconvenient and expensive to carry, and cannot meet the needs of immediate and convenient use by workers.
Therefore, it is necessary to develop a new type of optical measuring device and overcome the above-mentioned defects.
Japanese Patent No. 3673649 JP 2005-189220 A

The problem to be solved by the present invention is that the optical measuring device has the advantage of being small in volume and portable.
Furthermore, in order to be able to adjust according to the wavelength of an optical signal, a three-stage selector switch is provided, and the measurement accuracy of the optical measurement device can be increased.

In order to solve the above-mentioned problems, the present invention provides the following optical measurement device.
It includes a housing, printed circuit board, optical fiber connector, optical coupler, optical measurement module, analog / digital converter, operation switch, display device,
The housing includes a storage space, and further includes a first opening, a second opening, and an opening at one end,
The printed circuit board is installed in the storage space, the following parts are installed,
One end of the optical fiber connector is exposed in the first opening and can be connected to an optical fiber;
The optical coupler can be placed in the optical fiber connector;
The optical measurement module is installed on the printed circuit board, measures an optical signal to which the optical coupler is coupled, converts it to an analog signal,
The analog / digital converter is installed on the printed circuit board and connected to the optical measurement module, receives the analog signal, converts it to a digital signal,
The operation switch is connected to the optical measurement module, and is exposed in the opening,
The display device is connected to the analog / digital converter and is exposed in the second opening;
As a result, when the operation switch is pressed, the optical measurement module measures the optical signal coupled by the optical coupler, converts it through the analog / digital converter, and displays it on the display device.

Compared with the current technology as described above, the optical measuring device of the present invention has a small volume and is convenient to carry. Therefore, the operator can conveniently measure the optical signal anytime and anywhere.

The above and other technical contents, features and functions of the present invention will be described in detail below with reference to the drawings.
As shown in FIG. 1 which is an exploded view of the light measuring device of the optimal embodiment of the present invention, FIG. 2 which is a combination instruction diagram thereof, and FIG. 3 which is a block chart of the light measuring device, the light measuring device of the present invention 1 includes a housing 10, a printed circuit board 20, an optical fiber connector 30, an optical coupler 40, an optical measurement module 50, an analog / digital converter 60, an operation switch 70, and a display device 80.

The housing 10 is made of an insulating material such as, but not limited to, a plastic material, and includes an upper housing 11 and a lower housing 12. The upper casing 11 and the lower casing 12 cover each other to form a storage space 13 therein. A front opening of the upper housing 11 and the lower housing 12 is provided with a first opening 14, and a second opening 111, a third opening 112 and an opening 113 are provided on the upper housing 11.
The printed circuit board 20 includes the optical fiber connector 30, the optical coupler 40, the optical measurement module 50, the analog / digital converter 60, the operation switch 70, and the display device 80. Install in 13. Since this is a known technique, it will not be described in detail here.
One end of the optical fiber connector 30 is exposed to the outside from the first opening 14, and can be connected to an optical fiber (not shown) to be inspected.
The optical fiber includes a communication invisible light signal (abbreviated as an optical signal) waiting for measurement. The optical fiber connector is an SC / LC / FC optical fiber connector. A light transmitting piece 31 is further provided on the outside of the optical fiber connector 30, which is installed outside the first opening 14 to protect the optical fiber connector 30 and transmit the optical signal.

The optical coupler 40 is installed in the optical fiber connector 30 and couples an optical signal in the optical fiber to the optical measurement module 50.
The optical measurement module 50 is installed on the printed circuit board 20, measures an optical signal coupled by the optical coupler 40, and converts it into an analog signal.
The analog / digital converter (ADC) 60 is installed on the printed circuit board 20 and connected to the optical measurement module 50, receives the analog signal, converts it into a digital signal, and counts it.
The operation switch 70 is installed on the printed circuit board 20, is connected to the optical measurement module 50, is exposed to the outside through the opening 113, and drives the optical measurement module 50 by being pressed. . Further, a push component 71 is provided outside the operation switch 70, and the user can push the operation switch 70 through the push component by being fitted to the operation switch 70. A decorative piece 72 having a circular hole 73 and a rectangular hole 74 is further provided on the outer side of the push part 71, and the push part 71 is exposed to the outside from the circular hole 73.

The display device 80 is connected to the analog / digital converter 70, exposed to the outside from the second opening 11 and the direction hole 74, and displays the count value of the optical signal. The display device 80 is a seven-stage light emitting diode display (LED) or a liquid crystal display (but not limited to this).
The optical measurement device of the present invention further includes a three-stage changeover switch 90, is connected to the optical measurement module 50, is exposed to the outside from the third opening 112, and is adjusted to adjust according to the wavelength of the optical signal. The measurement wavelength of the optical measurement module 50 can be switched to an optical signal of 850 nm, 1310 nm, or 1550 nm, thereby improving the measurement accuracy of the optical measurement device of the present invention. Further, a switch part 91 is provided outside the three-stage selector switch 90 and is fitted into the three-stage selector switch 90, and the user switches the three-stage selector switch 90 via the switch part.

The light measuring device of the present invention further includes a battery 100 and a battery chamber 15 on the opposite side of the storage space 13. The battery 100 is installed in the battery chamber 15 via the electrodes 151 and 152, and is connected to the optical coupler 40, the optical measurement module 50, the analog / digital converter 60, the operation switch 70, and the display device 80. Connect and supply the necessary power. The battery 100 is a general disposable battery or a rechargeable battery.
Furthermore, the lower casing 12 of the light measuring device of the present invention includes a holding part 121, so that an operator can hold the light measuring device in the pocket.

After combining the above components, first, the three-stage changeover switch 90 is 850 nm (1310 nm or 1550 nm. In this embodiment, 850 nm is described as an example, but the present invention is not limited to this). Switch to mode. Next, an optical fiber (not shown) is connected to the optical fiber connector 30, and then the operation switch 70 is pressed. Thus, the optical measurement module 50 can measure the optical signal to which the optical coupler 40 is coupled. After being converted and counted by the analog / digital converter 60, the data is displayed on the display device 80, and the operator can know the intensity of the optical signal based on the numerical value on the display device 80, and perform subsequent maintenance or adjustment. The operation can be performed.

The optical measuring device of the present invention has a small volume, is convenient to carry, and has a three-stage switch, so that it can be adjusted according to the wavelength of the optical signal, thereby increasing the measurement accuracy of the optical measuring device of the present invention. It has the advantages of being able to Therefore, it is possible to improve the drawbacks of the known light measuring device.
Although the present invention has disclosed specific embodiments as described above, these are only optimum embodiments, and various variations and coloring can be added without departing from the product and area of the present invention. The scope of protection shall be based on the contents specified in the claims of the utility model.
The present invention is superior to the known technology in all of its purposes, means, functions and effects, and is completely new, practical, and satisfies the requirements for applying for a utility model.

It is an exploded view of the light measuring device according to the preferred embodiment of the present invention. It is a combination instruction diagram of the light measurement device of the optimal embodiment of the present invention. It is a block chart of the optical measurement apparatus of the optimal embodiment of this invention.

Explanation of symbols

10 box
11 Upper body
111 Second opening
112 3rd opening
113 opening
12 Lower body
121 Clamping part
13 Storage space
14 First opening
15 Battery compartment
151, 152 electrodes
20 Printed circuit board
30 Optical fiber connector
31 Translucent piece
40 Optical coupler
50 Optical measurement module
60 Analog / digital converter
70 Operation switch
71 Push parts
72 decorative pieces
73 hole
74 holes
80 display devices
90 3-stage selector switch
91 Switch parts
100 batteries

Claims (7)

It consists of a housing, printed circuit board, optical fiber connector, optical coupler, optical measurement module, analog / digital converter, operation switch, and display device.
The housing includes a storage space inside and includes a first opening, a second opening, and an opening at one end.
The printed circuit board is installed in the storage space with the following components mounted thereon,
One end of the optical fiber connector is exposed to the outside from the first opening so that it can be connected to the optical fiber to be measured,
The optical coupler is housed and installed in the optical fiber connector.
The optical measurement module measures an optical signal that is installed on the printed circuit board and is coupled to the optical coupler, and converts the optical signal into an analog signal.
The analog / digital converter is installed on the printed circuit board and connected to the optical measurement module, receives the analog signal, converts it to a digital signal,
The operation switch is connected to the optical measurement module and exposed to the outside through the opening,
The display device is connected to the analog / digital converter and exposed to the outside from the second opening,
By the operation of the operation switch having the above-described configuration, the optical measurement module measures an optical signal coupled with the optical coupler, converts the optical signal through the analog / digital converter, and displays it on the display device. Light measuring device. The casing is made of an insulating material and includes an upper casing and a lower casing. The upper casing and the lower casing cover each other to form the storage space inside the first casing and the first casing. The opening is located at the front end of the upper housing and the lower housing, the opening is located on the upper housing, and the lower housing further comprises a clamping part that is held in a pocket or the like. The light measurement device according to claim 1. The insulating material is plastic, has a third opening on the upper housing, further has a battery chamber on the opposite side of the first opening of the storage space, and two in the battery chamber. The light measuring device according to claim 2, further comprising: The optical measurement device further includes a three-stage changeover switch and is connected to the optical measurement module. The switch is exposed to the outside through the third opening, and an optical signal measured by the optical measurement module is operated by operating the switch. 4. The optical measurement apparatus according to claim 3, wherein the wavelength can be measured by switching to 850 nm, 1310 nm, or 1550 nm. The light measuring device further includes a push part, a decorative piece, and a switch part,
The push part is fitted on the outside of the operation switch so that a user can press the operation switch via the push part.
The decorative piece further includes a circular hole and a rectangular hole, the circular hole exposes the push part to the outside, the rectangular hole exposes the display device to the outside,
2. The optical measuring device according to claim 1, wherein the switch part is fitted on the outside of the three-stage selector switch so that a user can switch the three-stage selector switch via the switch part. . The optical fiber connector is an SC / LC / FC connector, and the display device is a seven-stage light emitting diode display or a liquid crystal display, and is further transparent to the outside of the first opening outside the optical fiber connector. The optical measurement apparatus according to claim 1, further comprising a piece for protecting the optical fiber connector and transmitting the optical signal. The light measurement device further includes a battery and is installed in the battery chamber, and is connected to the optical coupler, the light measurement module, the analog / digital converter, the operation switch, and the display device via the electrodes. 4. The optical measurement apparatus according to claim 3, wherein a necessary power supply is supplied.

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