CN108267405B - Precious stone fixed rotating frame for precious stone refractometer - Google Patents
Precious stone fixed rotating frame for precious stone refractometer Download PDFInfo
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- CN108267405B CN108267405B CN201810225087.0A CN201810225087A CN108267405B CN 108267405 B CN108267405 B CN 108267405B CN 201810225087 A CN201810225087 A CN 201810225087A CN 108267405 B CN108267405 B CN 108267405B
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- box body
- clamping arm
- clamping
- gemstone
- precious stone
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- 239000010437 gem Substances 0.000 title claims abstract description 146
- 229910001751 gemstone Inorganic materials 0.000 title claims abstract description 144
- 238000001514 detection method Methods 0.000 abstract description 13
- 239000004575 stone Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000007654 immersion Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004898 kneading Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010020675 Hypermetropia Diseases 0.000 description 1
- 239000010987 cubic zirconia Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 230000004305 hyperopia Effects 0.000 description 1
- 201000006318 hyperopia Diseases 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/4133—Refractometers, e.g. differential
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Adornments (AREA)
Abstract
The invention discloses a gemstone fixing and rotating frame for a gemstone refractometer, which comprises a frame body fixing unit, a plane rotating unit and a gemstone fixing unit; the plane rotating unit or the precious stone fixing unit is provided with circumferential scale marks; the frame body fixing unit is fixed on the gem refractometer; the lower surface of the plane rotating unit is fixedly connected with the upper surface of the frame body fixing unit; the upper surface of the plane rotation unit is fixedly connected with the precious stone fixing unit. According to the invention, the precious stone to be detected can be fixed on the precious stone refractometer, and a detector can accurately control the rotation angle of the precious stone during detection, so that the accuracy of the detection result is effectively improved, and meanwhile, the detector is very convenient to operate.
Description
Technical Field
The invention relates to the field of gemstone testing instruments, in particular to a gemstone fixing and rotating frame for a gemstone refractometer.
Background
A gemstone refractometer (gem refractometer) is an instrument for measuring the refractive index of a precious stone cut. It uses a high refractive index homogeneous material (such as lead glass or synthetic cubic zirconia) hemisphere as a prism; light which is emitted to the tested photophobic matter through the prism, light which is smaller than a critical angle enters the photophobic matter, and the light cannot be seen on the ocular lens, so that the photophobic matter is represented as a dark field; light rays greater than the critical angle are totally reflected back to the prism, showing a bright field on the eyepiece; the cut-off of the bright-dark field corresponds to the position of the critical angle. A scale is arranged under the ocular, a refractive index value corresponding to the critical angle is carved, and the numerical value indicated by the boundary of the light and dark domain is the refractive index of the measured substance. In order to achieve close contact between the interface of the gemstone under test and the surface of the prism, a drop of immersion oil (commonly used high refractive index immersion oil n=1.80) having a refractive index lower than that of the prism material and higher than that of the gemstone is added between the interface and the surface of the prism, so that the correct result cannot be read if the refractive index of the gemstone under test is higher than that of the immersion oil. The refractometer can not only measure the refractive index and the double refractive index of the precious jade, but also determine the axiality and the positive and negative of the light, and can also be used for measuring the dispersion value by using a monochromatic light source or a color filter.
Methods of inspecting a gemstone using a gemstone refractometer include the hyperopia method and the faceting method, both of which require the gemstone to be turned continuously while inspected. The whole precious stone needs to rotate 360 degrees during the faceting method detection, and each time the precious stone rotates 15 degrees during the detection process, reading and recording are carried out, but when the precious stone is rotated by using both hands, the rotation angle is often inaccurate; therefore, the rotation angle of the precious stone is less than 360 degrees or exceeds 360 degrees, and the detection result is inaccurate; and the two hands are very inconvenient to rotate the precious stone. When the far vision method is used for detection, the precious stone needs to be rotated until a round droplet is seen in an eyepiece, but the rotation angle of the hand is inaccurate, so that a certain error exists in the detection result.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to provide a gemstone fixing and rotating frame for a gemstone refractometer, which can fix a gemstone to be detected on the gemstone refractometer, and can accurately control the rotation angle of the gemstone by a detector during detection, so as to effectively improve the accuracy of the detection result, and simultaneously, the detector is very convenient to operate.
The invention aims at realizing the technical scheme that the precious stone fixing and rotating frame for the precious stone refractometer comprises a frame body fixing unit, a plane rotating unit and a precious stone fixing unit; the plane rotating unit or the precious stone fixing unit is provided with circumferential scale marks; the frame body fixing unit is fixed on the gem refractometer; the lower surface of the plane rotating unit is fixedly connected with the upper surface of the frame body fixing unit; the upper surface of the plane rotation unit is fixedly connected with the precious stone fixing unit.
Further, the gemstone securing unit includes a positioning device and a securing device; the positioning device is provided with circumferential scale marks; the positioning device is arranged on the upper surface of the plane rotating unit; the fixing device is arranged on the positioning device.
Further, the positioning unit comprises an upper box body, a lower box body, a first spring and a second spring; the upper box body and the lower box body are fixedly connected together in parallel through connecting rods, and openings of the upper box body and the lower box body are opposite, and a gap is formed between the upper box body and the lower box body;
the fixing device comprises a first jewel clamp plate, a second jewel clamp plate, a first clamp arm, a second clamp arm, a third clamp arm and a fourth clamp arm; the first precious stone clamping plate and the second precious stone clamping plate are positioned in a space surrounded by the upper box body and the lower box body; the first precious stone splint and the second precious stone splint are in an splayed shape;
one end of the first clamping arm and one end of the second clamping arm penetrate through a gap between the upper box body and the lower box body and are hinged with the outer side of the first jewel clamping plate; one ends of the third clamping arm and the fourth clamping arm penetrate through a gap between the upper box body and the lower box body and are hinged with the outer side of the second jewel clamping plate;
the first spring and the second spring are oppositely arranged in the upper box body and the lower box body; the middle parts of the first spring and the second spring are fixedly connected with the upper box body or the lower box body;
two ends of the first spring are respectively propped against the first clamping arm and the fourth clamping arm, and two ends of the second spring are respectively propped against the second clamping arm and the third clamping arm;
the upper box body or the lower box body is provided with circumferential scale marks; the lower box body is fixedly connected with the upper surface of the plane rotating unit.
Further, two opening end surfaces of the upper box body and the lower box body are respectively in sliding contact with the surfaces of the first clamping arm, the second clamping arm, the third clamping arm and the fourth clamping arm;
the parts of the first clamping arm, the second clamping arm, the third clamping arm and the fourth clamping arm, which are positioned in the space surrounded by the upper box body and the lower box body, are intersected with the plane of the gap between the upper box body and the lower box body.
Further, the other ends of the first clamping arm, the second clamping arm, the third clamping arm and the fourth clamping arm are provided with protruding blocks; the diameter of the protruding block is larger than the height of the gap between the upper box body and the lower box body bracket.
Further, anti-slip cushion layers are arranged on the inner sides of the first precious stone clamping plate and the second precious stone clamping plate.
Further, a tooth slot is arranged at the opening end of the upper box body or the lower box body; the cross sections of the first clamping arm, the second clamping arm, the third clamping arm and the fourth clamping arm are matched with tooth grooves.
Further, the frame body fixing unit comprises two clamping frames; the two clamping frames are oppositely arranged on the lower surface of the plane rotating unit;
the clamping frame comprises two elastic rods and a clamping sleeve; one end of each elastic rod is fixedly connected with the lower surface of the plane rotating unit, and the other end of each elastic rod is fixedly connected with the clamping sleeve.
Further, the plane rotation unit is a pressure bearing; the side surface of the upper ring of the pressure bearing is provided with pressure circumference scale marks; the lower ring of the pressure bearing is fixedly connected with the frame body fixing unit, and the upper ring is fixedly connected with the precious stone fixing unit.
Further, an angle positioning rod is arranged on the circumferential surface of the lower circular ring of the pressure bearing; the angle positioning rod is L-shaped; the angle positioning rod and the pressure bearing are positioned in the same plane.
Due to the adoption of the technical scheme, the invention has the following advantages: the device is fixed on the gemstone refractometer through the frame body fixing unit, the gemstone can be fixed on the prism of the gemstone refractometer through the gemstone fixing device, the rotation of the gemstone can be realized through the plane rotating unit, and the gemstone is not moved by hands during rotation. The rotation angle can be accurately controlled through the circumferential scale marks on the plane rotation unit or the precious stone fixing unit, so that the accuracy of the detection result is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Drawings
The drawings of the present invention are described as follows:
fig. 1 is a schematic top view of a gemstone stationary rotating frame for a gemstone refractometer.
Fig. 2 is a schematic left-view structure of fig. 1.
Fig. 3 is a schematic front view of fig. 1.
FIG. 4 is a schematic view of the structure at section B-B in FIG. 3.
FIG. 5 is a schematic view of the structure at section A-A in FIG. 1.
In the figure: 1. a fixing unit; 11. a clamping frame; 111. an elastic rod; 112. a cutting sleeve; 2. a plane rotation unit; 21. a pressure bearing; 3. a gemstone securing unit; 31. a positioning device; 311. an upper case; 3111. tooth slots; 312. a lower case; 313. a first spring; 314. a second spring; 315. a connecting rod; 316. a slit; 32. a fixing device; 321. a first stone clamping plate; 322. a second stone clamping plate; 323. a first clamp arm; 324. a second clamp arm; 325. a third clamp arm; 326. a fourth clamp arm; 4. scale marks; 5. a bump; 6. an anti-slip pad; 7. an angle positioning rod.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Examples: as shown in fig. 1 to 5; the gemstone fixing and rotating frame for the gemstone refractometer comprises a frame body fixing unit 1, a plane rotating unit 2 and a gemstone fixing unit 3; the plane rotation unit 2 and the gemstone fixing unit 3 are provided with circumferential graduation marks 4; the frame body fixing unit 1 is fixed on the gem refractometer; the lower surface of the plane rotating unit 2 is fixedly connected with the upper surface of the frame body fixing unit 1; the upper surface of the plane rotation unit 2 is fixedly connected with the gemstone fixing unit 1.
The device is fixed on a gemstone refractometer through the frame body fixing unit 1, the gemstone can be fixed on a prism of the gemstone refractometer through the gemstone fixing device 32, the rotation of the gemstone can be realized through the plane rotation unit 2, and the gemstone is not moved by hands during rotation. The rotation angle can be accurately controlled through the circumferential scale marks 4 on the plane rotation unit 2 or the gemstone fixing unit 3, so that the accuracy of the detection result is improved.
In this embodiment, gemstone securing unit 3 includes positioning device 31 and securing device 32; the positioning device 31 is provided with circumferential graduation marks 4; the positioning device 31 is installed on the upper surface of the plane rotation unit 2; the fixing device 32 is mounted on the positioning device 31.
The fixing device 32 can be fixed on the positioning device 31 after being adsorbed by a sucker, and can also be fixed on the positioning device 31 in an extrusion fastening mode; the precious stone can be fixed on the fixing device 32 through the fixing device 32, so that the fixing device 32 can be directly rotated when the precious stone is rotated, and the trouble of rotating by hands is avoided. The precious stone can be positioned right above the prism of the precious stone refractometer through the positioning device 31, so that the precious stone can be conveniently detected.
In this embodiment, the positioning unit includes an upper case 311, a lower case 312, a first spring 313 and a second spring 314; the upper box body 311 and the lower box body 312 are fixedly connected together in parallel through a connecting rod 315, and the openings of the upper box body 311 and the lower box body 312 are opposite, and a gap 316 is arranged between the upper box body 311 and the lower box body 312;
the fixture 32 includes a first stone clamping plate 321, a second stone clamping plate 322, a first clamping arm 323, a second clamping arm 324, a third clamping arm 325, and a fourth clamping arm 326; the first gemstone clamping plate 321 and the second gemstone clamping plate 322 are positioned in the space enclosed by the upper box body 311 and the lower box body 312; the first stone clamping plate 321 and the second stone clamping plate 322 are in an splayed shape;
one ends of the first clamping arm 323 and the second clamping arm 324 pass through a gap 316 between the upper box body 311 and the lower box body 312 and are hinged with the outer side of the first jewel clamping plate 321; one ends of the third clamping arm 325 and the fourth clamping arm 326 pass through the gap 316 between the upper box body 311 and the lower box body 312 and are hinged with the outer side of the second jewel clamping plate 322;
the first spring 313 and the second spring 314 are oppositely installed in the upper case 311 and the lower case 312; and the middle parts of the first spring 313 and the second spring 314 are fixedly connected with the upper box body 311 or the lower box body 312;
two ends of the first spring 313 respectively abut against the first clamping arm 323 and the fourth clamping arm 326, and two ends of the second spring 314 respectively abut against the second clamping arm 324 and the third clamping arm 325;
the upper box body 311 or the lower box body 312 is provided with circumferential scale marks 4; the lower case 312 is fixedly connected to the upper surface of the plane rotation unit 2.
An annular cavity with a slit 316 is formed by the upper case 311 and the lower case 312, so that the first spring 313 and the second spring 314 are guided, and the gem is fastened and taken by the first clamp arm 323, the second clamp arm 324, the third clamp arm 325, the fourth clamp arm 326, the first gem clamp plate 321 and the second gem clamp plate 322.
In this embodiment, two open end surfaces of the upper case 311 and the lower case 312 are respectively in sliding contact with the surfaces of the first clamping arm 323, the second clamping arm 324, the third clamping arm 325, and the fourth clamping arm 326;
the portions of the first clip arm 323, the second clip arm 324, the third clip arm 325, and the fourth clip arm 326 located in the space surrounded by the upper case 311 and the lower case 312 intersect the plane in which the slit 316 between the upper case 311 and the lower case 312 is located.
The two opening end surfaces of the upper box body 311 and the lower box body 312 are in sliding contact with the surfaces of the first clamping arm 323, the second clamping arm 324, the third clamping arm 325 and the fourth clamping arm 326, so that the clamping arms cannot pry in the gap 316, and the precious stone is fixed more stably. And meanwhile, the included angle is formed between the clamping arm and the plane of the gap 316, so that the clamping arm can fix gemstones with different sizes.
In the present embodiment, the other ends of the first clamping arm 323, the second clamping arm 324, the third clamping arm 325 and the fourth clamping arm 326 are provided with a bump 5; the diameter of the projection 5 is greater than the height of the upper box 311 and the gap 316 in the support with the lower box 312.
The bump 5 is arranged to facilitate the movement of the pushing arm. Thereby facilitating the fixation and the taking of the precious stone.
In this embodiment, the insides of the first and second stone clamping plates 321 and 322 are provided with an anti-slip pad layer 6.
The anti-slip cushion layer 6 is arranged to effectively improve the friction force of the first gemstone clamping plate 321 and the second gemstone clamping plate 322 to the gemstone, so that the gemstone can be well fixed on the first gemstone clamping plate 321 and the second gemstone clamping plate 322 when the gemstone is rotated.
In this embodiment, a tooth slot is disposed at the opening end of the upper box 311; the cross sections of the first, second, third and fourth clamping arms 323, 324, 325 and 326 are matched with the tooth grooves.
By providing the tooth grooves, the first clip arm 323, the second clip arm 324, the third clip arm 325, and the fourth clip arm 326 can be stopped at a predetermined area, so that both hands can be released for other operations.
In this embodiment, the frame body fixing unit 1 includes two clamping frames 11; two clamping frames 11 are oppositely arranged on the lower surface of the plane rotation unit 2;
the clamping frame 11 comprises two elastic rods 111 and a clamping sleeve 112; one end of each elastic rod 111 is fixedly connected with the lower surface of the plane rotation unit 2, and the other end is fixedly connected with the clamping sleeve 112.
The elastic rod 111 may be made of plastic or memory metal, and the elastic rod 111 may enable the ferrule 112 to form pressure with the surface of the gemstone refractometer, so that the holder fixing unit 1 may be fixed on the gemstone refractometer.
In the present embodiment, the plane rotation unit 2 is a pressure bearing 21; the side surface of the upper circular ring of the pressure bearing 21 is provided with pressure circumference graduation marks 4; the lower ring of the pressure bearing 21 is fixedly connected with the frame body fixing unit 1, and the upper ring is fixedly connected with the precious stone fixing unit 3.
The use of the pressure bearing 21 allows for a very convenient implementation of the rotation of the gemstone.
In this embodiment, the lower ring of the pressure bearing 21 is provided with an angle positioning rod 7 on its circumferential surface. The angle positioning rod 7 is arranged, so that a inspector can conveniently perform angle positioning, and the precious stone can be conveniently rotated; the angle positioning rod 7 is L-shaped; the angle positioning rod 7 is located in the same plane as the pressure bearing 21.
The gemstone-holding rotary frame for a gemstone refractometer is operated by separating two clamping frames 11 in opposite directions by hand by a certain distance, clamping the two clamping frames 11 on both sides of the gemstone refractometer, and after releasing the hand, fixing the frame body fixing unit 1 on the gemstone refractometer under the action of the elastic rod 111 and the clamping sleeve 112. The upper case 311 is pressed down by hand so that the lower surface of the pressure bearing 21 is flush with the prism surface of the gemstone refractometer. The first, second, third and fourth clamping arms 323, 324, 325 and 326 are bent downward by hand by a certain angle so that the maximum cut surface of the gemstone can be completely fitted with the prism surface of the gemstone refractometer when the gemstone is fixed.
One hand pinches the first clamp arm 323 and the fourth clamp arm 326, and the other hand pinches the second clamp arm 324 and the third clamp arm 325; finally, the first, second, third and fourth clamp arms 323, 324, 325 and 326 are clamped in the tooth grooves on the open end of the upper case 311, thereby fixing the first, second, third and fourth clamp arms 323, 324, 325 and 326.
The refractive oil is dropped, the precious stone is placed on the prism of the precious stone refractometer, and the first clamping arm 323, the second clamping arm 324, the third clamping arm 325 and the fourth clamping arm 326 are respectively loosened by two hands, so that the precious stone is fixed on the precious stone refractometer.
In the detection, the precious stone is turned in turn and recorded using the angle positioning lever 7 as a reference for the turning angle.
After the detection is completed, one hand is used for kneading the first clamping arm 323 and the fourth clamping arm 326, the other hand is used for kneading the second clamping arm 324 and the third clamping arm 325, the first clamping arm 323, the second clamping arm 324, the third clamping arm 325 and the fourth clamping arm 326 are clamped in tooth sockets on the opening end of the upper box body 311, precious stones are taken out, the device is disassembled, and the use of the device is completed
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (5)
1. The precious stone fixing rotating frame for the precious stone refractometer is characterized by comprising a frame body fixing unit, a plane rotating unit and a precious stone fixing unit; the plane rotating unit and the gemstone fixing unit are provided with circumferential scale marks; the frame body fixing unit is fixed on the gem refractometer; the lower surface of the plane rotating unit is fixedly connected with the upper surface of the frame body fixing unit; the upper surface of the plane rotation unit is fixedly connected with the precious stone fixing unit;
the gemstone fixing unit comprises a positioning device and a fixing device; the positioning device is provided with circumferential scale marks; the positioning device is arranged on the upper surface of the plane rotating unit; the fixing device is arranged on the positioning device;
the positioning device comprises an upper box body, a lower box body, a first spring and a second spring; the upper box body and the lower box body are fixedly connected together in parallel through connecting rods, and openings of the upper box body and the lower box body are opposite, and a gap is formed between the upper box body and the lower box body;
the fixing device comprises a first jewel clamp plate, a second jewel clamp plate, a first clamp arm, a second clamp arm, a third clamp arm and a fourth clamp arm; the first precious stone clamping plate and the second precious stone clamping plate are positioned in a space surrounded by the upper box body and the lower box body; the first precious stone splint and the second precious stone splint are in an splayed shape;
one end of the first clamping arm and one end of the second clamping arm penetrate through a gap between the upper box body and the lower box body and are hinged with the outer side of the first jewel clamping plate; one ends of the third clamping arm and the fourth clamping arm penetrate through a gap between the upper box body and the lower box body and are hinged with the outer side of the second jewel clamping plate, and protruding blocks are arranged at the other ends of the first clamping arm, the second clamping arm, the third clamping arm and the fourth clamping arm; the diameter of the protruding block is larger than the height of the gap between the upper box body and the lower box body bracket;
the first spring and the second spring are oppositely arranged in the upper box body and the lower box body; the middle parts of the first spring and the second spring are fixedly connected with the upper box body or the lower box body;
two ends of the first spring are respectively propped against the first clamping arm and the fourth clamping arm, and two ends of the second spring are respectively propped against the second clamping arm and the third clamping arm;
the upper box body or the lower box body is provided with circumferential scale marks; the lower box body is fixedly connected with the upper surface of the plane rotating unit;
the two opening end surfaces of the upper box body and the lower box body are respectively in sliding contact with the surfaces of the first clamping arm, the second clamping arm, the third clamping arm and the fourth clamping arm;
the parts of the first clamping arm, the second clamping arm, the third clamping arm and the fourth clamping arm, which are positioned in the space surrounded by the upper box body and the lower box body, are intersected with the plane of the gap between the upper box body and the lower box body;
a tooth slot is arranged at the opening end of the upper box body or the lower box body; the cross sections of the first clamping arm, the second clamping arm, the third clamping arm and the fourth clamping arm are matched with tooth grooves;
the plane rotating unit is a pressure bearing, a lower circular ring of the pressure bearing is fixedly connected with the frame body fixing unit, and an upper circular ring of the pressure bearing is fixedly connected with the precious stone fixing unit;
the upper box body and the lower box body form an annular cavity with a gap, so that the first spring and the second spring are guided, and the first precious stone clamping plate and the second precious stone clamping plate are fastened and used for taking precious stones through the first clamping arm, the second clamping arm, the third clamping arm, the fourth clamping arm, the first precious stone clamping plate and the second precious stone clamping plate.
2. The gemstone-holding rotating frame for a gemstone refractometer according to claim 1, wherein the first and second gemstone clamping plates are provided with anti-slip pad layers on the inner sides thereof.
3. The gemstone stationary rotating frame for a gemstone refractometer according to claim 1, wherein said frame body fixing unit includes two clamping frames; the two clamping frames are oppositely arranged on the lower surface of the plane rotating unit;
the clamping frame comprises two elastic rods and a clamping sleeve; one end of each elastic rod is fixedly connected with the lower surface of the plane rotating unit, and the other end of each elastic rod is fixedly connected with the clamping sleeve.
4. A gemstone-holding rotary frame for a gemstone refractometer according to any of claims 1-3, wherein the side of the upper ring of the pressure bearing is provided with pressure circumferential graduation marks.
5. The gemstone stationary rotating frame for a gemstone refractometer according to claim 4, wherein the lower ring of the pressure bearing has an angle positioning rod on its circumferential surface; the angle positioning rod is L-shaped; the angle positioning rod and the pressure bearing are positioned in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225087.0A CN108267405B (en) | 2018-03-19 | 2018-03-19 | Precious stone fixed rotating frame for precious stone refractometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225087.0A CN108267405B (en) | 2018-03-19 | 2018-03-19 | Precious stone fixed rotating frame for precious stone refractometer |
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| Publication Number | Publication Date |
|---|---|
| CN108267405A CN108267405A (en) | 2018-07-10 |
| CN108267405B true CN108267405B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810225087.0A Active CN108267405B (en) | 2018-03-19 | 2018-03-19 | Precious stone fixed rotating frame for precious stone refractometer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05133838A (en) * | 1991-11-12 | 1993-05-28 | Olympus Optical Co Ltd | Method for measuring refractive index distribution |
| CN2295214Y (en) * | 1997-05-10 | 1998-10-21 | 胡成心 | Double-refraction test instrument |
| JP2004093495A (en) * | 2002-09-03 | 2004-03-25 | Jasco Corp | Total reflection prism and total reflection apparatus using the same |
| CN101609045A (en) * | 2009-05-12 | 2009-12-23 | 杭州志达光电有限公司 | A kind of gemstone refractive index tester |
| CN205209957U (en) * | 2015-12-16 | 2016-05-04 | 中国地质大学（武汉） | Rotation type gem refractometer |
| CN106548694A (en) * | 2017-02-09 | 2017-03-29 | 成都飞航智库科技有限公司 | A kind of physics teaching device of demonstration anaclasis reflection |
| CN208140553U (en) * | 2018-03-19 | 2018-11-23 | 龚可欣 | Gem refractometer fixes swivel mount with jewel |
-
2018
- 2018-03-19 CN CN201810225087.0A patent/CN108267405B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05133838A (en) * | 1991-11-12 | 1993-05-28 | Olympus Optical Co Ltd | Method for measuring refractive index distribution |
| CN2295214Y (en) * | 1997-05-10 | 1998-10-21 | 胡成心 | Double-refraction test instrument |
| JP2004093495A (en) * | 2002-09-03 | 2004-03-25 | Jasco Corp | Total reflection prism and total reflection apparatus using the same |
| CN101609045A (en) * | 2009-05-12 | 2009-12-23 | 杭州志达光电有限公司 | A kind of gemstone refractive index tester |
| CN205209957U (en) * | 2015-12-16 | 2016-05-04 | 中国地质大学（武汉） | Rotation type gem refractometer |
| CN106548694A (en) * | 2017-02-09 | 2017-03-29 | 成都飞航智库科技有限公司 | A kind of physics teaching device of demonstration anaclasis reflection |
| CN208140553U (en) * | 2018-03-19 | 2018-11-23 | 龚可欣 | Gem refractometer fixes swivel mount with jewel |
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| Publication number | Publication date |
|---|---|
| CN108267405A (en) | 2018-07-10 |
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