CN209727759U - A kind of rapid survey instrument of optical glass refractive index - Google Patents

A kind of rapid survey instrument of optical glass refractive index Download PDF

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Publication number
CN209727759U
CN209727759U CN201821985480.1U CN201821985480U CN209727759U CN 209727759 U CN209727759 U CN 209727759U CN 201821985480 U CN201821985480 U CN 201821985480U CN 209727759 U CN209727759 U CN 209727759U
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China
Prior art keywords
laser
refractive index
measuring
control processing
optical glass
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CN201821985480.1U
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Chinese (zh)
Inventor
赵建平
蔡根
冯常
廖礼斌
吴康彪
张闰
陈志波
金睿焱
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Institute of Optics and Electronics of CAS
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Institute of Optics and Electronics of CAS
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Priority to CN201821985480.1U priority Critical patent/CN209727759U/en
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Abstract

The utility model discloses a kind of rapid survey instruments of optical glass refractive index, belong to optical precision measurement field, measuring device includes laser projecting apparatus (1), image collection module (2), installation shell (3), locating piece (4), fixed block (5), measuring table (6) and control processing unit (7).The parallel plate glass to be measured processed is placed on measuring table, and is bonded with locating piece (4);Calculated refractive index is modified according to temperature, the pressure of test environment by control processing unit (7), and real-time display measurement result.The utility model is simple and fast without carrying out complicated operation, and measurement result can be by control processing unit real-time display, and the apparatus structure is compact, light portable.

Description

A kind of rapid survey instrument of optical glass refractive index
Technical field
The utility model belongs to optical precision measurement field, is specifically related to a kind of rapid survey of optical glass refractive index Instrument.
Background technique
The method of optical glass material refractive index is measured there are many kind, angle-measuring method and interferometry two major classes can be divided into.It surveys Horn cupping includes the method for minimum deviation angle, the quasi- method in right angle, autocollimation method and V-prism refractometer method etc.;Interferometry includes Fabry-amber Sieve interferometry and immersion method etc..These method advantages are that measurement accuracy is high, but generally existing measuring instrument complexity is at high cost, measurement The disadvantages of process is cumbersome, sample surface type requires high and difficulty of processing big, is not suitable for the industry spot for needing quickly to detect.
Utility model content
The utility model aim is intended to overcome disadvantages described above, provides a kind of rapid survey instrument of optical glass refractive index.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of rapid survey instrument of optical glass refractive index, including laser projecting apparatus, image collection module, mounting shell Body, locating piece, fixed block, measuring table and control processing system.The laser projecting apparatus and image collection module are fixed on peace It fills on shell, the installation shell, locating piece, fixed block are successively installed on measuring table, and the laser projecting apparatus, image obtain Modulus block is electrically connected with control processing system.
Further, the laser projecting apparatus be used for by laser projection to fixed block surface, and with fixed block surface profile It is crossed to form hot spot, the laser projecting apparatus can be dot laser and be also possible to line laser, preferably selection dot laser, light source It can be each visible light wavelengths;Described image obtains module for above-mentioned hot spot to be imaged, and image sensor types can To be CCD or CMOS;The laser projecting apparatus and in a certain angle be mounted on of image collection module are installed on shell.
The beneficial effects of the utility model are: using a kind of above-mentioned rapid survey instrument of optical glass refractive index to optics Glass refraction carries out rapid survey, and glass to be measured, which need to only be processed into parallel plate glass, reduces difficulty of processing, the utility model The simple and fast operation without carrying out complexity, measurement result can be by control processing system real-time display, and the apparatus structure is compact, gently It is portable.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the rapid survey instrument of optical glass refractive index of the utility model;
Fig. 2 is a kind of work (after placing glass) signal of the rapid survey instrument of optical glass refractive index of the utility model Figure;
Fig. 3 is a kind of measuring principle (not placing glass) of the rapid survey instrument of optical glass refractive index of the utility model Schematic diagram;
Fig. 4 is a kind of measuring principle of the rapid survey instrument of optical glass refractive index of the utility model (after placing glass) Schematic diagram;
Appended drawing reference in figure are as follows: laser projecting apparatus 1, installation shell 3, locating piece 4, fixed block 5, is surveyed image collection module 2 Measure platform 6 and control processing system 7.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention will be further described:
As shown in Figure 1, the device for optical glass refractive index rapid survey, including laser projecting apparatus 1, image obtain Modulus block 2, installation shell 3, locating piece 4, fixed block 5, measuring table 6 and control processing unit 7.1 He of laser projecting apparatus Image collection module 2, which forms an angle, to be fixed on installation shell 3, and the installation shell 3, locating piece 4, fixed block 5 are successively pacified Loaded on measuring table 6, the laser projecting apparatus 1, image collection module 2 are electrically connected with control processing unit 7.
The laser projecting apparatus 1 can be each long wavelength laser for example: red laser, green laser, blue laser Device etc., image capture module 2 can be ccd image sensor or cmos image sensor.
As shown in Fig. 2, a kind of rapid survey instrument of above-mentioned optical glass refractive index, working method: starting control processing Unit;Laser projecting apparatus 1 and image collection module 2 are opened, laser projecting apparatus 1 projects laser and is crossed to form with 5 surface of fixed block Hot spot, hot spot will be imaged on a certain position of imaging sensor, 7 real-time image acquisition information of processing unit be controlled, according to triangle Method can measure distance L, and L value is a fixed value after instrument, which is installed, to be fixed.Glass processing to be measured is put down in parallel at known to thickness S Glass sheet is placed on measuring table 6 and is bonded with locating piece 3.Due to the influence of glass refraction, hot spot is on the image sensor Imaging position changes, and can calculate distance L1 at this time according to trigonometry.The refraction of glass to be measured is calculated by formula Rate n.
By formula:
The refractive index n of glass to be measured can be acquired by above-mentioned three formula are as follows:
In formula, D is thickness of glass (known), and H is image collection module camera lens focus and laser projecting apparatus spacing (known).
Calculated refractive index is modified according to temperature, the pressure of test environment by control processing unit 7, and in real time Show measurement result.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change Into etc., it should be included within the scope of protection of this utility model.

Claims (2)

1. a kind of rapid survey instrument of optical glass refractive index, which is characterized in that obtained including laser projecting apparatus (1), image Module (2), installation shell (3), locating piece (4), fixed block (5), measuring table (6) and control processing unit (7), the laser The projector (1) and image collection module (2), which form an angle, to be fixed in installation shell (3), the installation shell (3), positioning Block (4), fixed block (5) are successively installed on measuring table (6), the laser projecting apparatus (1), image collection module (2) and control Processing unit (7) electrical connection processed.
2. a kind of rapid survey instrument of optical glass refractive index according to claim 1, which is characterized in that the laser The projector (1) is used to be crossed to form hot spot by laser projection to fixed block (5) surface, and with fixed block (5) surface profile, described Laser projecting apparatus (1) can be dot laser and be also possible to line laser, and light source can be each visible light wavelengths;Described image obtains For module (2) for above-mentioned hot spot to be imaged, image sensor types can be CCD or CMOS.
CN201821985480.1U 2018-11-29 2018-11-29 A kind of rapid survey instrument of optical glass refractive index Active CN209727759U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821985480.1U CN209727759U (en) 2018-11-29 2018-11-29 A kind of rapid survey instrument of optical glass refractive index

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821985480.1U CN209727759U (en) 2018-11-29 2018-11-29 A kind of rapid survey instrument of optical glass refractive index

Publications (1)

Publication Number Publication Date
CN209727759U true CN209727759U (en) 2019-12-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821985480.1U Active CN209727759U (en) 2018-11-29 2018-11-29 A kind of rapid survey instrument of optical glass refractive index

Country Status (1)

Country Link
CN (1) CN209727759U (en)

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