CN205027510U - High power optical glass measuring device - Google Patents
High power optical glass measuring device Download PDFInfo
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- CN205027510U CN205027510U CN201520610286.5U CN201520610286U CN205027510U CN 205027510 U CN205027510 U CN 205027510U CN 201520610286 U CN201520610286 U CN 201520610286U CN 205027510 U CN205027510 U CN 205027510U
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- power meter
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- eyeglass
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Abstract
The utility model discloses an optical glass transmissivity measuring device, be 5050 branch slide, compensating gauge, slit, first power meter and second power meter including the splitting ratio. When measuring, at first open laser lamp -house, the reading P1 and the P2 of record first power meter this moment and second power meter obtain power ratio c=P1P2. Then the lens that will await measuring is put into in optical glass transmissivity measuring device's the transmitted light path, utilize the lens calibrating device adjustment of awaiting measuring the await measuring position and the angle of lens, the reading P1 that reads first power meter and second power meter and P2 /, it is last, through the await measuring transmissivity T of lens of following formula computing: T=P2 / cP1 /. The utility model discloses it is lower to the requirement of light source stability nature, to the lens thickness no requirement (NR) of awaiting measuring, can eliminate the influence to the test result such as branch slide front and back surface reflection, optical coating lens membrane system homogeneity.
Description
Technical field
The utility model belongs to field of laser device technology, particularly a kind of high power optical eyeglass lens measurement device.
Background technology
Optical mirror slip transmitance is an important references amount to the reflection of the irradiation luminous flux of optical mirror slip and evaluation of imaging quality, therefore extremely important to its measurement carried out.
Measurement people for optical mirror slip transmitance do excessive quantifier elimination, also make some progress.Past adopts traditional single channel mensuration, i.e. the ratio of luminous flux that do not obtained by tested eyeglass of the luminous flux that obtained by tested eyeglass of light beam and light beam.Single channel method of testing apparatus structure is simple, convenient operation, but its disadvantage is that this method can cause the irradiation luminous flux of twice test in front and back to shake due to the power swing of light source own, thus causes the inaccuracy of whole test.
In order to make up the deficiency of single channel test macro, available binary channels test macro carries out transmission measurement.A kind of existing testing scheme is spectrophotometer method, although this method can measure eyeglass transmitance accurately, but its eyeglass transmitance records all under low power scenarios, and the characteristic of eyeglass originally under high energy strong illumination state probably changes, so the test under low power state cannot illustrate high power situation.In addition, when utilizing spectrophotometer measurement, the thickness of multipair eyeglass to be measured has requirement, and it is less to the daylighting region on eyeglass.
As shown in Figure 1, it can utilize transmitted light path and reflected light path to realize the test of lens transmission rate in high power situation to another existing proving installation.Although this method has abandoned the impact of the stability of light source own, and can measure under upper state, but as shown in Figure 1, light splitting piece has former and later two surfaces, and in reflected light, existing front surface reflection light, has again rear surface reflected light, because the two light path is different, so the changed power trend caused by substrate absorption etc. is also not quite similar, treats if do not distinguish, error can be introduced to test result.In addition, when the angle that eyeglass to be measured is placed and change in location, indirectly can change laser incident angle and irradiation position, thus itself transmitance can produce subtle change, therefore, when measuring multi-disc eyeglass transmitance to be measured, need position and the angle of calibrating each.
On the other hand, the height of transmissivity is not only by the impact of optical mirror slip (air entrapment, dirt etc.) itself, on plated film lens, the impact of film system homogeneity is also fairly obvious, and current transmitance detects spininess to small-bore or measure with pointolite, notable difference is there is in this with regard to the very possible transmitance recorded at diverse location place, therefore can not obtain transmitance very accurately for large-aperture optical eyeglass, this just needs the heavy caliber transmissivity measuring eyeglass.
Utility model content
(1) technical matters that will solve
The utility model is intended to effectively eliminate the factors such as light source power instability, the reflection of light splitting piece front and rear surfaces, plated film lens film system homogeneity to optical mirror slip Transmissivity measurement result, and the impact of measurement result repeatability.
(2) technical scheme
The utility model proposes a kind of optical mirror slip Transmissivity measurement device, comprise splitting ratio be 50/50 light splitting piece, compensating plate, slit, the first power meter and the second power meter, wherein, described splitting ratio is that the light splitting piece of 50/50 is for receiving testing laser and being divided into transmitted light and reflected light, this light splitting piece has two relative parallel reflective faces, and one of them reflecting surface has plated film; Described compensating plate is placed in the side with plated film of described light splitting piece, for receive and transmission light splitting piece export transmitted light and reflected light in one, with compensate from plated film light splitting piece export laser substrate absorb; Described slit is used for retraining the laser reflected from described light splitting piece, only to allow to pass through from the laser with the reflective surface of plated film of described light splitting piece; Described first power meter is for detecting the power of the laser by described slit; Described second power meter is for detecting the power of the laser from lens transmission to be measured.
According to preferred implementation of the present utility model, optical mirror slip Transmissivity measurement device also comprises eyeglass calibrating installation, and it is calibrated for the position of carrying out eyeglass to be measured and angle.
According to preferred implementation of the present utility model, eyeglass calibrating installation to be measured comprises laser indicating apparatus, aperture and catoptron, wherein, described laser indicating apparatus exports the laser for calibrating, this laser incides catoptron by after lens reflecting to be measured by aperture, the position of described eyeglass to be measured and angle make laser that this catoptron reflects continue through the former road of this aperture to return, complete lens position to be measured and angle calibration system.
According to preferred implementation of the present utility model, optical mirror slip Transmissivity measurement device also comprises seal box, and it is for sealing the light path of described optical mirror slip Transmissivity measurement device and element.Blanket gas is filled with in seal box described in optical mirror slip Transmissivity measurement device.
(3) beneficial effect
A kind of high power optical eyeglass lens measurement device that the utility model proposes, it requires relatively low to light source stability, to lens thickness no requirement (NR) to be measured, the impact on test result such as the reflection of light splitting piece front and rear surfaces, optical coating eyeglass film system homogeneity can be eliminated, and can realize testing the heavy caliber of eyeglass transmitance to be measured by beam expander device.
Accompanying drawing explanation
Fig. 1 is the existing conceptual scheme utilizing light splitting piece to carry out the test of optical mirror slip transmissivity;
Fig. 2 is the structural representation of the first embodiment of the high power optical eyeglass lens measurement device that the utility model proposes;
Fig. 3 is the structural representation of high power optical eyeglass lens measurement device second embodiment that the utility model proposes.
Embodiment
The high power optical eyeglass lens measurement device that the utility model proposes adopts double light path aplanatism to measure, comprise splitting ratio be 50/50 light splitting piece, compensating plate, eyeglass calibrating installation to be measured, slit, the first power meter and the second power meter.
The light splitting piece that splitting ratio 50/50 is is for receiving testing laser and being divided into transmitted light and reflected light.This light splitting piece has two relative parallel reflective faces, and one of them reflecting surface has plated film.Described splitting ratio 50/50 light splitting piece is preferably the plated film light splitting piece of 45° angle, and places with laser beam axis angle at 45 °.
Compensating plate is placed in the side with plated film of light splitting piece, exporting one in transmitted light and reflected light, absorbing with the substrate compensating the laser exported from plated film light splitting piece for receiving also transmission light splitting piece.The material of described compensating plate, thickness and described splitting ratio be 50/50 light splitting piece identical, and to place with laser optical path also angle at 45 °.
Slit is used for retraining the laser reflected from described light splitting piece, only to allow to pass through from the laser with the reflective surface of plated film of described light splitting piece.
First power meter is for detecting the power of the laser by slit.
Second power meter is for detecting the power of the laser from lens transmission to be measured.
Eyeglass calibrating installation is used for the position of carrying out eyeglass to be measured and angle is calibrated, so that eyeglass placement location to be measured when ensureing repetitive measurement, angle are identical, eliminate eyeglass to be measured and places the different measuring error introduced.
Eyeglass to be measured is placed in the light path of the transmitted light of plated film light splitting piece.
A kind of embodiment of eyeglass calibrating installation to be measured comprises laser indicating apparatus, aperture and catoptron.Laser indicating apparatus exports the laser for calibrating, this laser incides catoptron by after lens reflecting to be measured by aperture, adjust laser that lens position to be measured and angle make catoptron reflect to continue through the former road of aperture and return, complete lens position to be measured and angle calibration system.
The light that LASER Light Source sends is after beam expander device, and inciding splitting ratio is on the light splitting piece of 50/50, utilizes slit to retrain reflects laser, only allows the reflected light of light splitting piece coated surface to pass through, and incides the first power meter.The second power meter is finally incided transmitted through after the Laser output of eyeglass to be measured.
Preferably, measurement mechanism of the present utility model also comprises seal box, and seal box is used for above-mentioned each component seal.N can be filled with in seal box
2deng blanket gas, to prevent factors such as atmospheric environment etc. impact is brought on test result.
Lens transmission rate measuring process to be measured is:
S1, open LASER Light Source, the reading P of record now the first power meter and the second power meter
1and P
2, obtain power ratio c=P
1/ P
2;
S2, eyeglass to be measured is put into the transmitted light path of measurement mechanism, utilize eyeglass calibrating installation to be measured to adjust position and the angle of eyeglass to be measured, read the reading P of the first power meter and second
1' and P
2';
S3, transmitance T by following formulae discovery eyeglass to be measured:
T＝P
2’c/P
1’。
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is described in further detail.
The structure of the first embodiment of the present utility model as shown in Figure 2.1 is LASER Light Source, for generation of high power laser light; 2 is beam expander device, carries out shaping for laser LASER Light Source launched and expands, thus can carry out heavy caliber measurement to lens transmission rate to be measured; 3 for splitting ratio be the light splitting piece of 50/50, the testing laser exported for receiving beam parallel beam expand device 2 is also divided into transmitted light and reflected light, and its coated surface is positioned on Laser output face; 4 is compensating plate, for receiving and the laser of transmission plated film light splitting piece 3 transmission, absorbs from the substrate of the laser of plated film light splitting piece 3 transmission for compensating; 5 is slit, for retraining, only to allow the laser reflected from the coated surface of described plated film light splitting piece 3 to pass through the laser reflected from described plated film light splitting piece 3; 6 is the first power meter, for detecting the power of the laser by described slit 5; 7 is eyeglass to be measured, makes this eyeglass 7 to be measured of laser light from the transmission of described compensating plate 4; 8 is laser indicating apparatus, and for exporting red laser, 9 is aperture, 10 is catoptron, laser indicating apparatus 8, aperture 9, catoptron 10 form eyeglass calibrating installation to be measured, when carrying out Transmissivity measurement to difference eyeglass to be measured, to calibrate its position and angle; 11 is the second power meter, for detecting the power of the laser from lens transmission to be measured; 12 is seal box, seals for light beam being protected bundle device 2, plated film light splitting piece 3, compensating plate 4, slit 5, first power meter 6, second power meter 11, eyeglass calibrating installation to be measured and catoptron 10, at sealing N
2the measurement of lens transmission rate is realized under environment.
The light that LASER Light Source 1 sends, after beam expander device 2, incides on 45° angle splitting ratio 50/50 plated film light splitting piece 3, utilizes slit 5 pairs of reflects laser to retrain, and only allows the reflected light of light splitting piece coated surface to pass through, and incides the first power meter 6; Export after compensating plate 4 through laser, finally incide the second power meter 11.Control to make it to associate with the second power meter 11 to the first power meter 6, just can record the test number of a certain moment first power meter 6 and the second power meter 11 simultaneously.Whole device is placed in seal box 12 and tests, and fills N
2protection, prevents the factors etc. such as atmospheric environment from bringing impact to test result.
The arrangement method of eyeglass calibrating installation to be measured as shown in Figure 2, laser indicating apparatus 8 and aperture 9, the discrete transmitted light path both sides of catoptron 10, symmetry arrangement; Laser indicating apparatus 8 is positioned at above transmitted light path, and exporting light is macroscopic visible laser, and it exports light and transmitted light path is that θ angle is put; Aperture 9 and catoptron 10 are positioned at below transmitted light path, both place planes are put in (90 ° of-θ) angle with transmitted light path separately, and by aperture 9 center, will through the center of catoptron in the light of-θ angle with transmitted light path, and the intersection point that this light and laser indicating apparatus 8 export light will be positioned on transmitted light path optical axis, and this intersection point is also the intersection point of lens posterior surface to be measured and optical axis simultaneously.Like this, by the light of laser indicating apparatus outgoing, incide lens posterior surface to be measured, by finely tuning angle and the position of eyeglass to be measured, make its reflected light through the center of aperture 9, and catoptron 10 surface can be incided, then return through catoptron reflection Hou Yuan road, now, lens angle to be measured, position correction are complete.
As shown in Figure 2, described reflected light path and transmitted light path roughly equal at the light path of free space.
If the thickness of spectroscope 3 is d, refractive index is n, then the light path walked in eyeglass inside through the laser of light splitting piece coated surface reflection is
transmitted light is due to the compensation effect of compensating plate, and the light path walked in eyeglass inside is also
like this, reflects laser is identical with the light path that transmission laser is walked in same material eyeglass substrate, even if under the accumulative effects such as high-energy irradiation, passage of time, substrate absorption etc. are roughly the same, farthest can ensure the accuracy of test result.
As shown in Figure 2, the thickness of plated film light splitting piece 3 is 5mm, and refractive index is 1.5, and the light path that the laser through the reflection of this light splitting piece coated surface is walked in eyeglass inside is
transmitted light is due to the compensation effect of compensating plate, and the light path walked in eyeglass inside is also
like this, reflects laser is identical with the light path that transmission laser is walked in same material eyeglass substrate, even if under the accumulative effects such as high-energy irradiation, passage of time, substrate absorption etc. also can be roughly the same, farthest can ensure the accuracy of test result.
Eyeglass transmission measurement step to be measured is as follows:
S1, open the power supply of LASER Light Source 1, the reading P of record now the first power meter 6 and the second power meter 11
1and P
2, obtain power ratio c=P
1/ P
2, close the power supply of LASER Light Source 1.
S2, eyeglass 7 to be measured is put into transmitted light path, and with red laser marking instrument 8, aperture 9 and the calibration catoptron 10 that ruddiness is all-trans being carried out to eyeglass 7 position to be measured, angle.Open the power supply of LASER Light Source 1 again, read the reading P recording now the first power meter 6 and the second power meter 11
1' with P
2'.
S3, calculate eyeglass transmitance T to be measured:
T＝P
2′/(P
1′/c)＝P
2′c/P
1′。
Change the power of LASER Light Source 1, repeat above-mentioned steps, then under can obtaining different capacity state, the transmitance of eyeglass 7 to be measured.The structure of the second embodiment of the present utility model as shown in Figure 3.With the first embodiment unlike, the coated surface of the plated film light splitting piece 3 of this embodiment is positioned on laser input face, and compensating plate 4, for receiving the laser that also transmission is reflected from plated film light splitting piece 3, absorb with the first embodiment similar with the substrate compensating the laser of this reflection, the thickness of plated film light splitting piece 3 is 5mm, and refractive index is 1.5, and the light path that the laser through the reflection of plated film light splitting piece 3 coated surface is walked in compensating plate 4 inside is
the light path that transmitted light is walked in light splitting eyeglass inside is also
equally, reflects laser is identical with the light path that transmission laser is walked in same material eyeglass substrate, even if under the accumulative effects such as high-energy irradiation, passage of time, substrate absorption etc. are roughly the same, farthest can ensure the accuracy of test result.Eyeglass transmission measurement step to be measured is identical with the first embodiment, does not repeat them here.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. an optical mirror slip Transmissivity measurement device, comprise splitting ratio be 50/50 light splitting piece, compensating plate, slit, the first power meter and the second power meter, wherein,
Described splitting ratio be the light splitting piece of 50/50 for receiving testing laser and being divided into transmitted light and reflected light, this light splitting piece has two relative parallel reflective faces, and one of them reflecting surface has plated film;
Described compensating plate is placed in the side with plated film of described light splitting piece, for receive and transmission light splitting piece export transmitted light and reflected light in one, with compensate from plated film light splitting piece export laser substrate absorb;
Described slit is used for retraining the laser reflected from described light splitting piece, only to allow to pass through from the laser with the reflective surface of plated film of described light splitting piece;
Described first power meter is for detecting the power of the laser by described slit;
Described second power meter is for detecting the power of the laser from lens transmission to be measured.
2. optical mirror slip Transmissivity measurement device as claimed in claim 1, is characterized in that, also comprise eyeglass calibrating installation, and it is calibrated for the position of carrying out eyeglass to be measured and angle.
3. optical mirror slip Transmissivity measurement device as claimed in claim 2, it is characterized in that, eyeglass calibrating installation to be measured comprises laser indicating apparatus, aperture and catoptron, wherein, described laser indicating apparatus exports the laser for calibrating, this laser incides catoptron by after lens reflecting to be measured by aperture, and the position of described eyeglass to be measured and angle make laser that this catoptron reflects continue through the former road of this aperture to return, complete lens position to be measured and angle calibration system.
4. optical mirror slip Transmissivity measurement device as claimed in claim 1, is characterized in that, also comprise seal box, and it is for sealing the light path of described optical mirror slip Transmissivity measurement device and element.
5. optical mirror slip Transmissivity measurement device as claimed in claim 4, is characterized in that, be filled with blanket gas in described seal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610286.5U CN205027510U (en) | 2015-08-13 | 2015-08-13 | High power optical glass measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610286.5U CN205027510U (en) | 2015-08-13 | 2015-08-13 | High power optical glass measuring device |
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|---|---|
| CN205027510U true CN205027510U (en) | 2016-02-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841933A (en) * | 2016-05-27 | 2016-08-10 | 海信集团有限公司 | Optical element attenuation testing device |
| CN106053018A (en) * | 2016-05-27 | 2016-10-26 | 海信集团有限公司 | Optical element aging device |
| CN106092516A (en) * | 2016-05-27 | 2016-11-09 | 海信集团有限公司 | The aging equipment of optical element |
| CN106785813A (en) * | 2016-12-01 | 2017-05-31 | 武汉华工激光工程有限责任公司 | The closed-loop control device and method of a kind of laser power monitor in real time |
| CN106053022B (en) * | 2016-05-27 | 2019-09-17 | 海信集团有限公司 | The aging equipment of optical element |
-
2015
- 2015-08-13 CN CN201520610286.5U patent/CN205027510U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841933A (en) * | 2016-05-27 | 2016-08-10 | 海信集团有限公司 | Optical element attenuation testing device |
| CN106053018A (en) * | 2016-05-27 | 2016-10-26 | 海信集团有限公司 | Optical element aging device |
| CN106092516A (en) * | 2016-05-27 | 2016-11-09 | 海信集团有限公司 | The aging equipment of optical element |
| CN105841933B (en) * | 2016-05-27 | 2018-09-18 | 海信集团有限公司 | Optical element attenuation test device |
| CN106092516B (en) * | 2016-05-27 | 2019-09-17 | 海信集团有限公司 | The aging equipment of optical element |
| CN106053022B (en) * | 2016-05-27 | 2019-09-17 | 海信集团有限公司 | The aging equipment of optical element |
| CN106053018B (en) * | 2016-05-27 | 2019-11-08 | 海信集团有限公司 | Optical element aging equipment |
| CN106785813A (en) * | 2016-12-01 | 2017-05-31 | 武汉华工激光工程有限责任公司 | The closed-loop control device and method of a kind of laser power monitor in real time |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200831 Address after: 100190, No. 19 West Fourth Ring Road, Beijing, Haidian District Patentee after: Research Institute of aerospace information innovation, Chinese Academy of Sciences Address before: 9 Dengzhuang South Road, Haidian District, Beijing 100094 Patentee before: Academy of Opto-Electronics, Chinese Academy of Sciences Effective date of registration: 20200831 Address after: 100029 Beijing city Chaoyang District Beitucheng West Road No. 3 Patentee after: Institute of Microelectronics, Chinese Academy of Sciences Address before: 100190, No. 19 West Fourth Ring Road, Beijing, Haidian District Patentee before: Research Institute of aerospace information innovation, Chinese Academy of Sciences |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210312 Address after: 100176 building 10, 156 Jinghai 4th Road, Daxing Economic and Technological Development Zone, Beijing Patentee after: BEIJING RSLASER OPTO-ELECTRONICS TECHNOLOGY Co.,Ltd. Address before: 100029 Beijing city Chaoyang District Beitucheng West Road No. 3 Patentee before: Institute of Microelectronics, Chinese Academy of Sciences |