CN110645879A - Binocular optical system image tilt measuring structure and measuring method thereof - Google Patents
Binocular optical system image tilt measuring structure and measuring method thereof Download PDFInfo
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- CN110645879A CN110645879A CN201911030120.5A CN201911030120A CN110645879A CN 110645879 A CN110645879 A CN 110645879A CN 201911030120 A CN201911030120 A CN 201911030120A CN 110645879 A CN110645879 A CN 110645879A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 16
- 210000001747 pupil Anatomy 0.000 claims abstract description 37
- 238000005259 measurement Methods 0.000 claims description 10
- 230000000007 visual effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012634 optical imaging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/32—Fiducial marks and measuring scales within the optical system
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Abstract
The invention discloses a binocular optical system image inclination measuring structure and a measuring method thereof, wherein the binocular optical system image inclination measuring structure comprises a supporting table, a measuring seat is arranged on the supporting table, two identical lens barrel seats are arranged on the measuring seat, and a measuring lens barrel is arranged in each lens barrel seat; one end of the measuring lens cone is provided with an observation eyepiece; a measuring reticle is arranged on one side, close to the observation eyepiece, inside the measuring lens barrel, and a telescopic objective lens group is arranged on one side, far away from the observation eyepiece, inside the measuring lens barrel; a gear shaft is arranged at the center of the inner part of the measuring seat, a rack is connected to the gear shaft, and the rack is simultaneously connected with the lens barrel seat; a dovetail guide rail is further connected inside the mirror cylinder seat, the dovetail guide rail is located at the upper part of the rack, and the dovetail guide rail and the rack are symmetrical about the gear shaft; the gear shaft is connected with a pupil distance adjusting drive plate, and the pupil distance adjusting drive plate part is positioned outside the measuring seat.
Description
Technical Field
The invention relates to the technical field of optical detection, in particular to a binocular optical system image tilt measuring structure and a binocular optical system image tilt measuring method.
Background
Among several parameters affecting the optical imaging quality of a binocular optical system including a microscope or a telescope, the image tilt difference between the left and right viewing fields greatly affects the optical imaging quality and the comfort of the eyes of an observer, and therefore, the image tilt difference detection of the binocular optical system is particularly important. However, in the prior art, there is no existing mature instrument specially for detecting the optical parameters, and only one monocular measuring telescope is prepared by a laboratory or a professional detection mechanism, and binocular optical paths are detected one by a precise translation stage, so that the detection mode is not only complicated, but also large errors are generated if vibration or displacement inclination occurs in the translation process, and the measurement result is influenced.
Disclosure of Invention
The invention aims to: the measuring structure and the measuring method of the image inclination of the binocular optical system have the advantages that the left and right visual fields of the binocular optical system can be observed simultaneously by the aid of the double measuring lens barrels, the indication value of the interpupillary distance can be synchronously displayed in real time, the optical center offset of the binocular system can be measured by the aid of the measuring reticle, the relative image inclination of the binocular system can be measured simultaneously, the measuring structure and the measuring method have the advantages of being convenient, fast and accurate, and the problems that in the prior art, the detecting mode is complicated and inaccurate are solved.
The technical scheme adopted by the invention is as follows:
a binocular optical system image inclination measuring structure comprises a supporting table, wherein a measuring seat is arranged on the supporting table, two identical lens barrel seats are mounted on the measuring seat, and a measuring lens barrel is arranged in each lens barrel seat; one end of the measuring lens cone is provided with an observation eyepiece; a measuring reticle is arranged on one side, close to the observation eyepiece, inside the measuring lens barrel, and a telescopic objective lens group is arranged on one side, far away from the observation eyepiece, inside the measuring lens barrel; a gear shaft is arranged at the center of the inner part of the measuring seat, a rack is connected to the gear shaft, and the rack is simultaneously connected with the lens barrel seat; a dovetail guide rail is further connected inside the mirror cylinder seat, the dovetail guide rail is located at the upper part of the rack, and the dovetail guide rail and the rack are symmetrical about the gear shaft; the gear shaft is connected with a pupil distance adjusting drive plate, and the pupil distance adjusting drive plate part is positioned outside the measuring seat.
The working principle of the invention is as follows: the left and right visual fields of the binocular optical system can be observed simultaneously by arranging the double-measurement lens barrels, and the pupil distance adjusting drive plate can display the pupil distance value in real time so as to facilitate simultaneous observation of eyepieces when the corresponding pupil distances of the binocular optical system are butted; meanwhile, the precisely machined dovetail guide rail is matched with a plurality of conventional jackscrew adjusting structures to ensure high parallelism when any pupil distance of two measuring lens cones and observation consistency of an internal measuring reticle, which are used as basic requirements for accurately measuring left and right image tilt difference of a binocular optical system; meanwhile, the gear shaft and the rack are utilized to drive the double-measuring-lens barrel to move horizontally, so that the device has the characteristics of low cost, stable transmission, convenience, reliability and the like; by arranging the measuring reticle, the offset of the optical center of the binocular system can be measured, the relative image inclination of the binocular system can be measured, the method has the characteristics of convenience, rapidness and accuracy, and two important indexes of the binocular system can be measured without depending on the mechanical precision; in addition, the lens barrel seat is connected with the supporting table through the measuring seat, wherein the supporting table can be matched with different quick connection plates to be arranged on different supporting tables so as to adapt to different measuring occasions.
Further, the center distance of the two measuring lens barrels is engraved on the outer side edge of the pupil distance adjusting dial. Wherein, the centre-to-centre distance is interpupillary distance value, makes things convenient for real-time reading.
Furthermore, a dovetail block is arranged at the position where the lens barrel seat is contacted with the dovetail guide rail. Through conventional jackscrew adjustment and grinding assembly, the two measuring lens barrels can move horizontally relative to each other in the transverse direction through the dovetail block and the dovetail guide rail, and the moving straightness is not more than 5um, so that the measuring accuracy is guaranteed.
A measuring method of a binocular optical system image tilt measuring structure comprises the following steps:
s1: the gear shaft is driven by the pupil distance adjusting drive plate to drive the measuring lens cones connected with the racks to move left and right, and after one pupil distance value is selected and fixed, a measuring reticle in the measuring lens cone on the left side and a left visual field in the measured binocular optical system are observed;
s2: the measuring reticle is coincided with the measuring mark cross wire of the measured system, then the measuring lens cone measured on the right side is observed, the horizontal height difference of the measuring mark cross wire is read out through the measuring reticle, and the left and right image inclination difference of the measured binocular optical system can be measured through calculation;
s3: when the ocular pupil distance of the binocular optical system to be measured is changed, the indicating value on the driving plate can be adjusted according to the pupil distance, the two measuring lens barrels are stirred at any time to keep the pupil distance of the binocular optical system to be measured consistent, and then the left and right image tilt differences of the binocular optical system under a plurality of different pupil distances are measured.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the utility model provides a measurement structure and measuring method of binocular optical system image slope, through setting up two measuring lens cones, can observe binocular optical system's left and right visual field simultaneously, the interpupillary distance indicating value can real-time synchronization show, through measuring the graticule, can measure binocular system's optical center offset, can measure binocular system's relative image slope simultaneously, has convenient, swift, accurate characteristics, has solved the loaded down with trivial details and unsafe problem of detection mode among the prior art.
2. According to the invention, the high parallelism and the observation consistency of the internal measurement reticle when the pupil distance of the double-measurement lens cone is arbitrary are ensured by the structure that the precisely processed dovetail guide rail is matched with the plurality of jackscrews for adjustment, which is a basic requirement for accurately measuring the left-right image tilt difference of the binocular optical system.
3. The invention utilizes the gear shaft and the rack to drive the double-measuring-lens-barrel to move horizontally, and has the characteristics of low cost, stable transmission, convenience, reliability and the like.
4. The invention can measure the optical center offset of the binocular system and the relative image inclination of the binocular system by arranging the measuring reticle, has the characteristics of convenience, rapidness and accuracy, and can measure two important indexes of the binocular system without depending on the mechanical precision.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of an appearance structure of a binocular optical system image tilt measuring structure and a measuring method thereof;
FIG. 2 is a top cross-sectional view of the present invention;
FIG. 3 is a front cross-sectional view of the present invention;
FIG. 4 is a schematic view of the working principle of the reticle for measurement according to the present invention;
in the figure, 1-a supporting table, 2-a measuring seat, 3-a lens barrel seat, 4-a measuring lens barrel, 5-an observation ocular lens, 6-a measuring reticle, 7-a telescopic objective lens group, 8-a gear shaft, 9-a rack, 10-a dovetail guide rail, 11-a pupil distance adjusting dial and 12-a dovetail block.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1 to 4.
Example 1
As shown in fig. 1 to 4, a binocular optical system image tilt measuring structure includes a supporting table 1, a measuring base 2 is arranged on the supporting table 1, two identical lens barrel bases 3 are mounted on the measuring base 2, and a measuring lens barrel 4 is arranged inside the lens barrel base 3; one end of the measuring lens barrel 4 is provided with an observation eyepiece 5; a measuring reticle 6 is arranged on one side, close to the observation eyepiece 5, inside the measuring lens barrel 4, and a telescopic objective lens group 7 is arranged on one side, far away from the observation eyepiece 5, inside the measuring lens barrel 4; a gear shaft 8 is arranged at the center of the inner part of the measuring seat 2, a rack 9 is connected to the gear shaft 8, and the rack 9 is simultaneously connected with the lens barrel seat 3; a dovetail guide rail 10 is further connected inside the mirror cylinder base 3, the dovetail guide rail 10 is located at the upper part of the rack 9, and the dovetail guide rail 10 and the rack 9 are symmetrical with respect to the gear shaft 8; the gear shaft 8 is connected with a pupil distance adjusting dial 11, and the pupil distance adjusting dial 11 is partially positioned outside the measuring seat 2.
Working principle of the inventionComprises the following steps: by arranging the double-measurement lens barrels 4, the left and right visual fields of the binocular optical system can be observed at the same time, and the pupil distance adjusting drive plate 11 can display the pupil distance value in real time so as to facilitate the simultaneous observation of eyepieces when the corresponding pupil distances of the binocular optical system are butted; meanwhile, the precisely machined dovetail guide rail 10 needs to be matched with a plurality of conventional jackscrew adjusting structures to ensure high parallelism when any interpupillary distance of the two measuring lens barrels 4 is measured and the observation consistency of the internal measuring reticle 6, which is a basic requirement for accurately measuring left and right image tilt difference of the binocular optical system; meanwhile, the gear shaft 8 and the rack 9 are utilized to drive the double-measurement lens cone 4 to move horizontally, so that the device has the characteristics of low cost, stable transmission, convenience, reliability and the like; by arranging the measuring reticle 6, the offset of the optical center of the binocular system can be measured, the relative image inclination of the binocular system can be measured, the method has the characteristics of convenience, rapidness and accuracy, and two important indexes of the binocular system can be measured without depending on the mechanical precision; in addition, the lens barrel base 3 is connected with the supporting table 1 through the measuring base 2, wherein the supporting table 1 can be matched with different quick-connection plates to be arranged on different supporting tables 1 so as to adapt to different measuring occasions. Wherein, the measuring reticle 6 can mark the offset range of the measuring optical center, judge whether the offset of the optical center is in the specified range by visually observing the offset range of the optical system center, have two vertical scribed lines with a distance L, and can be easily measured by the magnification of a microscope (L)A-LB) And the/L value can calculate the inclination angle of the binocular image of the microscope by tangent.
Example 2
As shown in fig. 1 to 4, the present embodiment is different from embodiment 1 in that a dovetail block 12 is provided at a position where the barrel base 3 contacts the dovetail rail 10. Through conventional jackscrew adjustment and grinding assembly, the two measuring lens barrels 4 can move horizontally relative to each other in the transverse direction through the dovetail blocks 12 and the dovetail guide rails 10, and the moving straightness is not more than 5um, so that the measuring accuracy is guaranteed.
Example 3
As shown in fig. 1 to 4, the present embodiment is different from the above embodiments in that a method for measuring a binocular optical system image tilt measurement structure includes the steps of:
s1: the gear shaft 8 is driven by the pupil distance adjusting dial 11 to drive the measuring lens cone 4 connected with the rack 9 to move left and right, and after a pupil distance value is selected and fixed, the left view field in the left measuring lens cone 4 and the left view field in the measured binocular optical system are observed;
s2: the measuring reticle 6 is coincided with the measuring mark cross wire of the measured system, then the measuring lens cone 4 measured at the right side is observed, the horizontal height difference of the measuring mark cross wire is read out through the measuring reticle 6, and the left and right image inclination difference of the measured binocular optical system can be measured through calculation;
s3: when the ocular pupil distance of the binocular optical system to be measured changes, the indicating value on the pupil distance adjusting dial 11 can be used for shifting two measuring drawtubes 4 at any time to keep the pupil distance of the binocular optical system to be measured consistent, and then the left and right image tilt difference of the binocular optical system under a plurality of different pupil distances is measured.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be made by those skilled in the art without inventive work within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. The utility model provides a binocular optical system looks like measurement structure of slope which characterized in that: the device comprises a supporting table (1), wherein a measuring seat (2) is arranged on the supporting table (1), two identical lens barrel seats (3) are arranged on the measuring seat (2), and a measuring lens barrel (4) is arranged in each lens barrel seat (3); one end of the measuring lens cone (4) is provided with an observation eyepiece (5); a measuring reticle (6) is arranged on one side, close to the observation eyepiece (5), in the measuring lens cone (4), and a telescopic objective lens group (7) is arranged on one side, far away from the observation eyepiece (5), in the measuring lens cone (4); a gear shaft (8) is arranged at the center of the inner part of the measuring seat (2), a rack (9) is connected to the gear shaft (8), and the rack (9) is connected with the lens barrel seat (3) at the same time; a dovetail guide rail (10) is further connected to the inner portion of the mirror cylinder seat (3), the dovetail guide rail (10) is located on the upper portion of the rack (9), and the dovetail guide rail (10) and the rack (9) are symmetrical with respect to the gear shaft (8); the gear shaft (8) is connected with a pupil distance adjusting dial (11), and the pupil distance adjusting dial (11) is partially positioned outside the measuring seat (2).
2. The binocular optical system image tilt measuring structure of claim 1, wherein: the center distance of the two measuring lens barrels (4) is carved on the outer side edge of the pupil distance adjusting dial (11).
3. The binocular optical system image tilt measuring structure of claim 1, wherein: and a dovetail block (12) is arranged at the position where the lens barrel seat (3) is contacted with the dovetail guide rail (10).
4. A measuring method of a binocular optical system image tilt measuring structure is characterized by comprising the following steps:
s1: a gear shaft (8) is driven by a pupil distance adjusting dial (11) to drive a measuring lens cone (4) connected with a rack (9) to move left and right, and after a pupil distance value is selected to be fixed, a measuring reticle (6) in the measuring lens cone (4) on the left side and a left visual field in a measured binocular optical system are observed;
s2: the measuring reticle (6) is coincided with the measuring mark cross wire of the measured system, then the measuring lens cone (4) measured at the right side is observed, the horizontal height difference of the measuring mark cross wire is read out through the measuring reticle (6), and the left and right image inclination difference of the measured binocular optical system can be measured through calculation;
s3: when the ocular pupil distance of the binocular optical system to be measured is changed, the indicating value on the pupil distance adjusting dial (11) can be used for shifting two measuring lens barrels (4) at any time to keep the pupil distance of the binocular optical system to be measured consistent, and then the left and right image tilt differences of the binocular optical system under a plurality of different pupil distances are measured.
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| CN201911030120.5A CN110645879A (en) | 2019-10-28 | 2019-10-28 | Binocular optical system image tilt measuring structure and measuring method thereof |
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| CN201911030120.5A CN110645879A (en) | 2019-10-28 | 2019-10-28 | Binocular optical system image tilt measuring structure and measuring method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686549A (en) * | 2021-08-04 | 2021-11-23 | 孝感华中精密仪器有限公司 | Binocular microscope detection device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113686549A (en) * | 2021-08-04 | 2021-11-23 | 孝感华中精密仪器有限公司 | Binocular microscope detection device and method |
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