CN1229621C - Mechanical barrel length measuring unit and method for microscope - Google Patents
Mechanical barrel length measuring unit and method for microscope Download PDFInfo
- Publication number
- CN1229621C CN1229621C CN 02148482 CN02148482A CN1229621C CN 1229621 C CN1229621 C CN 1229621C CN 02148482 CN02148482 CN 02148482 CN 02148482 A CN02148482 A CN 02148482A CN 1229621 C CN1229621 C CN 1229621C
- Authority
- CN
- China
- Prior art keywords
- measured
- tube length
- microscope
- joint
- group assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Microscoopes, Condenser (AREA)
Abstract
The present invention discloses a measurement device and a measurement method for the mechanical cylinder length of a microscope. The measurement device is mainly composed of a main optical system, a measurement mechanism, a middle connection cylinder, an objective lens group assembly and a reflector group assembly, wherein the main optical system is composed of an eye lens group assembly, a light splitter group assembly and a signal generator. The light splitter group assembly is composed of a T-shaped cylindrical shell, a light splitter group installed in the middle part of the cylindrical shell; the T-shaped cylindrical shell is respectively connected with the eye lens group assembly, the middle connection cylinder and the signal generator. The axial line of the signal generator is perpendicular to the axial lines of an eye lens group and an objective lens group. The present invention makes the axial interval of the main optical system and a reflecting system reach a specified value by rotating the measurement mechanism; the difference value of the measured interval and the specified interval is measured by measuring movement amount along the axial direction. The mechanical cylinder length of the measured microscope is equal to the sum of the standard cylinder length and the difference value. The measurement device can conveniently and accurately measure the mechanical cylinder length of various biological microscopes; the precision can reach (+/-)0.05mm.
Description
Technical field
The present invention relates to a kind of microscopie unit, particularly relate to a kind of biological microscope mechanical tube length measurement mechanism and measuring method.
Background technology
In the optical system of traditional biological microscope, the general prism that turns to that all designs 45 ° or 30 °, and have also have additional 1 times of compensation (mechanical tube length) lens, so optical axis is not a straight line but broken line can not use directly measurement such as common measurer such as vernier caliper.Though the cubing of other measurement mechanical tube length is also arranged, can measure the microscope mechanical tube length of no supplementary lens, degree of accuracy is not high, generally can only reach ± level of 0.21mm; For the situation that contains lens, survey instrument in the past can not be measured the mechanical tube length that has 1X to elongate the pipe mirror group of the situation of system and infinity object lens in the limited mechanical tube length micro objective imaging system.Because the difference of biological microscope inner structure, traditional survey instrument can't be tested with this kind survey instrument, has brought many inconvenience to surveying work.
Summary of the invention
The object of the present invention is to provide a whole set of degree of accuracy height, can detect various biological microscope mechanical tube length measurement mechanism and measuring methods with complicated optical system.
For achieving the above object, microscope mechanical tube length measurement mechanism of the present invention is made up of the standard cartridge of primary optical system, middle extend neck, measuring mechanism, objective lens assembly, reflector group assembly and known distance; Described primary optical system is made of eyepiece group assembly, spectroscope group assembly and signal generator, wherein spectroscope group assembly is made of tubular shell that is the T font and the spectroscope group that is installed in the tubular shell, the tubular shell of this T font have two symmetrically arranged interfaces with one substantially with the 3rd vertical substantially interface of above-mentioned two symmetric coupling axis; Eyepiece group assembly the inner is nested with in the interface in two symmetric couplings, the left end of middle extend neck and another interface of tubular shell join, measuring mechanism is nested with an end that is connected with the objective lens assembly at middle extend neck, and the eyepiece group with and objective lens be positioned on the same axis; Signal generator is nested with in the 3rd interface, and the mechanical axis of signal generator is vertical with optical axis with the mechanical axis of objective lens with the eyepiece group; The outer end of measuring mechanism can with an end socket of measured piece; The reflector group assembly can with the other end socket of measured piece; The standard cartridge of this known distance (one of measured piece) is used for zero setting.
Described measuring mechanism is made up of the graduated ring that joint and being used to reads measured value, and graduated ring is enclosed within on the joint external diameter, and this joint the inner can be screwed onto on the part outer face of centre extend neck with moving axially, the outer end of joint can with an end socket of measured piece.
Described signal generator is made up of the light source, collecting lens and the light signal plate that are installed in successively in the tubular shell.
Described light signal plate is the opaque sheet material of regional area printing opacity; Or being the jealous glass plate of chromium plating, this glass pane surface delineation has the lines of printing opacity; Or be the clear glass that draw on the surface black line.
Described spectroscope group is a prism or semi-transparent semi-reflecting level crossing.
Use the measuring method of microscope mechanical tube length measurement mechanism of the present invention to comprise:
Step 1: at first demarcate " zero-bit ", the location of reading when just error is " 0 ".
The method of determining " 0 " position is: at first objective lens and reflector group being placed the two ends of the standard cartridge of known distance, and initial reading value (being generally " 0 ") is set, is that benchmark compares with mechanical tube length to be measured with this gauged distance then.
Step 2: the error amount of measuring mechanical tube length to be measured.
(1) elder generation is inserted into the joint of measuring mechanism in the microscope mechanical tube length measurement mechanism in the microscopical eyepiece stalk to be measured;
(2) erection joint of reflector group assembly is screwed in the screw of microscopical converter to be measured, and place light path;
(3) light source of unlatching luminaire, the switch of just opening the power supply source of light source makes light source igniting.
(4) observe the measuring light signal by the eyepiece group, if when unintelligible, then come the joint of back rotation measuring mechanism, till finding sharply defined image, in operating process, one of operator holds the signal generator shell, the another hand rotates the joint of measuring mechanism, so primary optical system just moves as straight line along optical axis direction with respect to microscope to be measured, and does not rotate.
(5) set by step after (4) find sharply defined image, the corresponding numerical value of the slotted line on the graduated ring that promptly reads measuring mechanism and the middle extend neck, the error amount Δ L of just measured mechanical tube length to be measured.
Step 3: calculate mechanical tube length L ' to be measured=standard tube length L+ error amount Δ L.
The present invention is made up of primary optical system, measuring mechanism and reflector group, and employing autocollimatic image-forming principle, promptly produce the light signal that is used to measure by primary optical system self, make the axially spaced-apart of primary optical system and reflecting system reach setting by wheel measuring mechanism, then measure the difference that this amount of movement vertically just equals to measure tested interval and predetermined distance, can measure the error amount of the mechanical tube length of all kinds of biological microscopes easily and accurately, precision can reach ± 0.05mm.The present invention also improves from physical construction, reading mechanism can be arranged on to be measured on objective lens front end and the contacted turning set of tested microscopical eyepiece stalk, such design has not only reduced the volume of catoptron, help solving the versatility problem of measuring all kinds of microscope mechanical tube lengths, be particularly suitable for measuring the mechanical tube length of infinity objective lens tube mirror group.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an exploded view of the present invention;
Fig. 3 is the exploded view of reflector group assembly of the present invention;
Fig. 4 is the application drawing on microscope of the present invention;
Fig. 5 is enforcement figure of the present invention.
Embodiment
As shown in Figure 1, 2, the present invention mainly is made up of the standard cartridge 15 of primary optical system 1, middle extend neck 3, measuring mechanism 2, objective lens assembly 4, reflector group assembly 5 and a known distance.
Described primary optical system 1 is made of eyepiece group assembly 11, spectroscope group assembly 12 and signal generator 13.Described spectroscope group assembly 12 is made of tubular shell 121 that is the T font and the spectroscope group 122 that is installed in tubular shell 121 middle parts, the tubular shell 121 of this T font have two symmetrically arranged interfaces 123,124 with one with the 3rd vertical substantially interface 125 of above-mentioned two interfaces, 123,124 axis, wherein spectroscope group 122 is a prism or semi-transparent semi-reflecting level crossing; Described eyepiece group assembly 11 is made up of tubular shell 111 and eyepiece groups 112 of being installed in this tubular shell 111, and tubular shell 111 inner outside surfaces are provided with external thread, and this external thread can be screwed in the interface 123 of tubular shell 121 of T font; The left end of middle extend neck 3 and another interface 124 of tubular shell 121 join, measuring mechanism 2 is nested with an end that is screwed at middle extend neck 3 and objective lens assembly 4, this objective lens assembly 4 is made up of the objective lens 42 that is installed in the tubular shell 41, and place middle extend neck 3 and measuring mechanism 2, and eyepiece group assembly 11 is positioned on the same axis with middle extend neck 3, measuring mechanism 2 and objective lens 42; Signal generator 13 is nested with in the 3rd interface 125, and the mechanical axis of signal generator 13 is vertical with optical axis with the mechanical axis of objective lens 42 with eyepiece group 112; Described signal generator 13 is made up of tubular shell 134 and light source 131, collecting lens 132 and light signal plates 133 of being installed in successively in this tubular shell 134, light source 131 can be by battery 6 power supplies, wherein light signal plate 133 is generally made by the opaque sheet material (as metal and plastic plate etc.) of regional area printing opacity, as adopt the jealous glass plate of chromium plating, this glass pane surface delineation has the lines of printing opacity, or adopts the surperficial clear glass that black line is arranged of drawing to make.
Described measuring mechanism 2 by joint 21 and the graduated ring 22 that is used to read measured value form.Graduated ring 22 is enclosed within on joint 21 external diameters, and a little screw is arranged on the graduated ring 22, can end tightly (graduated ring 22 can freely rotate after unclamping this screw) on the joint 21 by this little screw with a screw; One side of graduated ring 22 is a circular conical surface, and its upper edge circumference is evenly delineated (being the five equilibrium delineation) some lines (such as 40) and mark respective digital (as " 0 ", " 1 ", " 2 " etc.).Also delineated a thin straight line vertically on the middle extend neck 3, be used to aim at groove the reading on the graduated ring 22 with the realization measured value; The inner of joint 21 have internal thread can be screwed in the middle of on the external thread of extend neck 3 and can move vertically, the outer end of joint 21 can with measured piece, as machinery tube 17 to be measured or standard cartridge 15 (as shown in Figure 4) socket.
As shown in Figure 3, described reflector group assembly 5 is made of tubular shell 51, holder 52 and reflector group 53, one end outside surface of holder 52 is provided with external thread, this external thread can be screwed into the internal thread of tubular shell 51 1 ends, reflector group 53 is placed in the holder 52, and is clamped between tubular shell 51 and the holder 52.The other end outside surface of tubular shell 51 is provided with external thread 54, and this external thread 54 can be spirally connected with measured piece.Reflector group 53 can white glass or metal material etc. make.
The mechanical tube length of the biological microscope that the present invention is measured be meant from the object lens installation base surface of converter to the eyepiece installation base surface along the equivalent air distance of optical axis direction.
Ultimate principle of the present invention is such:
By optics and structural design, make primary optical system 1 and reflector group assembly 5 when a certain regulation axially spaced-apart, could allow the user see light signal picture clearly by eyepiece, otherwise, if not fogging Chu, then the distance between these two groups is not above-mentioned setting just, can make the primary optical system 1 and the axially spaced-apart of reflector group assembly 5 reach setting again by wheel measuring mechanism 2, then measure the difference that this amount of movement vertically just equals to measure tested interval and predetermined distance.
In order to realize versatility and practicality, the present invention fully takes into account following three kinds of situations when measuring mechanical tube length to be measured:
1, has only refractive prism (or catoptron) and air in the micro objective light path;
2, except being arranged, refractive prism and air also have lens (generally being the positive negative lens group of one times of elongation and field lens etc.) in the micro objective light path;
3, the pipe mirror group (containing prism, air and Guan Jing) of infinity object lens.
The present invention will measure the intermediate image plane position of object lens and the 1X conjugate plane of reflecting system all is arranged at microscopical real image foliation opinion position, and this set-up mode is applicable to three kinds of above-mentioned situations, and solves the problem of universal measurement with this.For only containing air and the measured object that turns to prism, also measuring mechanism 2 can be arranged in the reflector group assembly 5, its principle also is by rotation the interval of reflector group assembly 5 and primary optical system 1 to be changed with helicitic texture to realize focusing and measurement.
Measuring process of the present invention is as follows:
As shown in Figure 2, light source 131 through illuminate behind collecting lens 132 optically focused light signal plate 133 by spectroscope group 122, objective lens 42 and reflector group 53 after, the user can be observed the picture (can be the cross bright line) of light signal by eyepiece group 112.When the user finds not foggingly when clear, then swivel 21 is till clear.
As shown in Figure 4, adopt the method for relative measurement, by reading error value of the present invention.
Step 1: at first demarcate " zero-bit ", the location of reading when just error is " 0 ".
The method of determining " 0 " position is: the two ends that at first objective lens 42 and reflector group 53 placed the standard cartridge 15 of known distance are (when the tube length L that measures such as needs is 160mm, the length L of standard cartridge 15 is 160mm), and initial reading value (being generally " 0 ") is set, be that benchmark compares with mechanical tube length 17 to be measured with this gauged distance then.
As shown in Figure 5, it is as follows to measure the operation steps 2 of error amount of mechanical tube length to be measured:
(1) earlier this device joint 21 is inserted in the eyepiece stalk of microscope 18 to be measured;
(2) erection joint 54 with reflector group assembly 5 screws in the screw of the converter 20 of microscope 18 to be measured, and places light path;
(3) light source 131 of unlatching luminaire, the switch of just opening the power supply source 6 of light source is lighted light source 131.
(4) observe the measuring light signal by eyepiece group 112, if when unintelligible, swivel 21 back and forth then, till finding sharply defined image, in operating process, one of operator holds signal generator 13 shells, the another hand rotates the joint 21 of measuring mechanism 2, so primary optical system 1 just moves as straight line along optical axis direction with respect to microscope 18 to be measured, and does not rotate.
(5) set by step after (4) find sharply defined image, the corresponding numerical value of the slotted line on the graduated ring 22 that promptly reads measuring mechanism 2 and the middle extend neck 3, just measured machinery tube 17 error amount Δ L to be measured.
Step 3: calculate mechanical tube length L ' to be measured=standard tube length L+ error amount Δ L
Claims (6)
1, a kind of microscope mechanical tube length measurement mechanism, it is characterized in that: the standard cartridge by primary optical system, middle extend neck, measuring mechanism, objective lens assembly, reflector group assembly and known distance is formed; Described primary optical system is made of eyepiece group assembly, spectroscope group assembly and signal generator, wherein spectroscope group assembly is made of tubular shell that is the T font and the spectroscope group that is installed in the tubular shell, the tubular shell of this T font have two symmetrically arranged interfaces with one substantially with the 3rd vertical substantially interface of above-mentioned two symmetric coupling axis; Eyepiece group assembly the inner is nested with in the interface in two symmetric couplings, the left end of middle extend neck and another interface of tubular shell join, measuring mechanism is nested with an end that is connected with the objective lens assembly at middle extend neck, and the eyepiece group with and objective lens be positioned on the same axis, measuring mechanism is made up of the graduated ring that joint and being used to reads measured value, graduated ring is enclosed within on the joint external diameter, in the middle of this joint the inner can be screwed onto with moving axially on the part outer face of extend neck, the outer end of joint can with an end socket of measured piece; Signal generator is made up of the light source, collecting lens and the light signal plate that are installed in successively in the tubular shell, and signal generator is nested with in the 3rd interface, and the mechanical axis of signal generator is vertical with optical axis with the mechanical axis of eyepiece group and objective lens; The reflector group assembly can with the other end socket of measured piece; The standard cartridge of this known distance is used for zero setting.
2, microscope mechanical tube length measurement mechanism according to claim 1 is characterized in that: described light signal plate is the opaque sheet material of regional area printing opacity.
3, microscope mechanical tube length measurement mechanism according to claim 2 is characterized in that: the jealous glass plate that described light signal plate is chromium plating, this glass pane surface delineation has the lines of printing opacity.
4, microscope mechanical tube length measurement mechanism according to claim 1 is characterized in that: described light signal plate is drawn the clear glass that black line is arranged for the surface.
5, microscope mechanical tube length measurement mechanism according to claim 1 is characterized in that: described spectroscope group is a prism or semi-transparent semi-reflecting level crossing.
6, use the measuring method of the described microscope mechanical tube length of claim 1 measurement mechanism, may further comprise the steps:
Step 1: at first demarcate " zero-bit ", the location of reading when just error is " 0 ";
The method of determining " 0 " position is: at first objective lens and reflector group being placed the two ends of the standard cartridge of known distance, and the initial reading value is set, is that benchmark compares with mechanical tube length to be measured with this gauged distance then;
Step 2: the error amount of measuring mechanical tube length to be measured;
(1) elder generation is inserted into the joint of measuring mechanism in the microscope mechanical tube length measurement mechanism in the microscopical eyepiece stalk to be measured;
(2) erection joint of reflector group assembly is screwed in the screw of microscopical converter to be measured, and place light path;
(3) light source of unlatching luminaire, the switch of just opening the power supply source of light source makes light source igniting;
(4) observe the measuring light signal by the eyepiece group, if when unintelligible, then come the joint of back rotation measuring mechanism, till finding sharply defined image, in operating process, one of operator holds the signal generator shell, the another hand rotates the joint of measuring mechanism, so primary optical system just moves as straight line along optical axis direction with respect to microscope to be measured, and does not rotate;
(5) set by step after (4) find sharply defined image, the corresponding numerical value of the slotted line on the graduated ring that promptly reads measuring mechanism and the middle extend neck, the error amount Δ L of just measured mechanical tube length to be measured;
Step 3: calculate mechanical tube length L ' to be measured=standard tube length L+ error amount Δ L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02148482 CN1229621C (en) | 2002-12-06 | 2002-12-06 | Mechanical barrel length measuring unit and method for microscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02148482 CN1229621C (en) | 2002-12-06 | 2002-12-06 | Mechanical barrel length measuring unit and method for microscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1506653A CN1506653A (en) | 2004-06-23 |
| CN1229621C true CN1229621C (en) | 2005-11-30 |
Family
ID=34233182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02148482 Expired - Lifetime CN1229621C (en) | 2002-12-06 | 2002-12-06 | Mechanical barrel length measuring unit and method for microscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1229621C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107784650A (en) * | 2017-10-30 | 2018-03-09 | 湖北坚丰科技股份有限公司 | A kind of online visible detection method for rotating shaft bearing of motor shelves diameter |
-
2002
- 2002-12-06 CN CN 02148482 patent/CN1229621C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1506653A (en) | 2004-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101477319B (en) | Optical system used for focusing and leveling | |
| CN1229621C (en) | Mechanical barrel length measuring unit and method for microscope | |
| CN1934432A (en) | Method for measuring noncircularity of core portion of optical fiber preform and its instrument | |
| CN2585180Y (en) | Device for measuring length of mechanical tube of microscopic | |
| CN1204046A (en) | Optical contact measuring method and miniature three-dimensional measuring head using the same | |
| CN210155433U (en) | Optical system for high-precision optical centering based on auto-collimation method | |
| GB2069172A (en) | Measuring soft contact lens parameters | |
| JP2006524806A (en) | Coordinate measuring device | |
| CN116105638A (en) | U-shaped turntable coaxiality detection system and detection method | |
| CN101013051A (en) | Laser coaxial regulating assistant and method thereof | |
| CN214502357U (en) | Portable measuring microscope with angle measuring function | |
| CN2185422Y (en) | Multifunctional autocollimating direct-measuring micro-parallel light tube | |
| CN114166127B (en) | Reinforcing steel bar size detector | |
| CN219046215U (en) | Transmission type slide projector demonstration experiment device | |
| JPS5810711A (en) | Device for confirming position adjustment of light source of falling irradiation lighting microscope | |
| CN110887789A (en) | Optical detection system adopting continuous zoom magnification lens | |
| US2549566A (en) | Optical micrometer gauge | |
| CN212008278U (en) | Strong light lamp for detecting reticle | |
| CN1492214A (en) | Laser aligner for realizing self collimator quick capturing and alignment method | |
| CN110887815B (en) | Optical detection system adopting multi-lens switching structure | |
| CN209657004U (en) | A kind of luminous energy collimator | |
| CN211206222U (en) | Optical detection system adopting continuous zoom magnification lens | |
| CN215599027U (en) | Crack detection device for chromium coating layer on excircle of piston ring | |
| CN218122352U (en) | Microscope lens barrel parfocal calibration and detection equipment with integrated eyepiece and lens barrel | |
| CN211826756U (en) | Digital internal focusing centering instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20051130 |
|
| CX01 | Expiry of patent term |