CN205317347U - Blue light harm measuring device - Google Patents
Blue light harm measuring device Download PDFInfo
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- CN205317347U CN205317347U CN201520964294.XU CN201520964294U CN205317347U CN 205317347 U CN205317347 U CN 205317347U CN 201520964294 U CN201520964294 U CN 201520964294U CN 205317347 U CN205317347 U CN 205317347U
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Abstract
The utility model discloses a blue light harm measuring device, it is including being located diaphragm in the first light path, plano -convex lens in proper order, half passing through half anti - glass and spectroscopic measurement device, spectroscopic measurement device includes spectrum collection probe, blue light harm measuring device still includes and partly passes through half anti - glass with lieing in the video alignment device in the second light path, first light path and second light path are perpendicular, video alignment device's the regional measurand region that covers spectroscopic measurement device of measurand, spectroscopic measurement device's the distance of measurement face and diaphragm be 200mm, the circular aperture of diaphragm is 7mm. Diaphragm aperture's big or small anthropomorphic dummy eyes pupil limit conditions, the measurement face is the 200mm anthropomorphic dummy eye distance of distinct vision limit with the distance of diaphragm, can endanger with the blue light of appraising the light source by the rapid survey.
Description
Technical field
This utility model relates to a kind of optical radiation measurement device, particularly relates to a kind of blue light harm measurement apparatus.
Background technology
At present, the reflective optical security problem of LED light source increasingly causes the attention of people, and especially common white light LEDs adopts blue chip to excite substantially, and therefore, the blue light harm of LED is especially serious. International and domestic some corresponding standard-requireds are put into effect.
But there is principle defect in traditional instrument, it is impossible to its authentic and valid harm value of Accurate Determining in blue light harm is measured. Because in blue light harm test, what we required to measure is the light source photo bio safety effectiveness to human eye, this with the pupil size of human eye, retina to the photobio logical hazard sensitivity of different wave length, the spectral characteristic of light source, the characteristic such as time of human eye looking at light sources, the Luminance Distribution on light source surface, light source luminescent temporal properties etc. relevant. And traditional instrument as: existing brightness is in respect of luminometer, spectral radiance luminance meter and imaging brightness meter. The accurate measurement of the photometric parameters such as brightness can only be carried out, it is impossible to meet blue light harm measurement requirement.
Although there being some to can be used for the instrument that blue light harm is measured at present, but bulky, costly, it is impossible to popularize on a large scale.
Summary of the invention
The technical assignment of technical scheme to be solved in the utility model and proposition is in that to overcome disadvantages mentioned above, it is provided that a kind of low cost, easy operation, high-precision blue light harm measurement apparatus, it is possible to blue light hazard profile quick, accurately measurement light source.
This utility model solves prior art problem and be the technical scheme is that a kind of blue light harm measurement apparatus, including the diaphragm being sequentially located in the first light path, planoconvex lens, semi-transparent semi-reflecting glass and spectral measurement device; Described diaphragm is fixing with convex lens to be connected; Described spectral measurement device includes spectra collection probe; Described blue light harm measurement apparatus also includes the video alignment device being located in the second light path with semi-transparent semi-reflecting glass; Described first light path is vertical with the second light path; The measured region of video alignment device covers the measured region of spectral measurement device, and the measuring surface of described spectral measurement device and the distance of diaphragm are 200mm;The circular aperture of described diaphragm is 7mm.
Further, described blue light harm measurement apparatus also includes pedestal and light limiter, and described pedestal is fixed between spectral measurement device and semi-transparent semi-reflecting glass, and pedestal has lightlng hole, and lightlng hole is positioned in the first light path; Described light limiter comprises a limit unthreaded hole, the angle of visual field of corresponding 11mrad; The both sides of pedestal have chute, and light limiter inserts in chute.
Further, described light limiter also includes two limit unthreaded holes, respectively corresponding 100mrad, 1.7mrad angle of visual field.
Further, described blue light harm measurement apparatus also includes the light filter being arranged between semi-transparent semi-reflecting glass and video alignment device, and light filter is positioned in the second light path, and described light filter comprises neutral attenuating filters.
Further, described blue light harm measurement apparatus also includes the beam splitter being arranged between semi-transparent semi-reflecting glass and spectral measurement device, and described spectral measurement device also includes transient state light collection probe; Described beam splitter comprises a light inlet and two light-emitting windows, light inlet and one of them light-emitting window are positioned in the first light path, and the transient state light collection probe of another light-emitting window and spectral measurement device is positioned at same light path.
Further, described beam splitter is y-type optical fiber.
The marked improvement that this utility model has:
1, being specifically designed for blue light harm, portable integration, easy to operate, certainty of measurement is high;
2, aperture diaphragm is arranged at the entrance pupil position of imaging device, reduces imaging device aberration requirement, limits receiving aperture, improves certainty of measurement;
3, utilize the convenient use of video alignment device, improve processing safety.
4, the multiple optical parametric of measurement can be extended, such as brightness, illumination, colorimetric parameter, scotopic vision photometric parameter, the effective blue light brightness of retina, pulse characteristic etc.
Accompanying drawing explanation
Fig. 1 is structural representation;
Fig. 2 is the structural representation of pedestal and light limiter;
Fig. 3 is the structural representation of light filter;
Fig. 4 is the structural representation of beam splitter;
Fig. 5 is the schematic diagram of y-type optical fiber.
In figure: diaphragm 11, planoconvex lens 12, pedestal 13, light limiter 14, light filter 15, beam splitter 16, semi-transparent semi-reflecting glass 21, video alignment device 22, spectral measurement device 23.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is further described.
As it is shown in figure 1, this utility model one blue light harm measurement apparatus, including the diaphragm 11 being sequentially located in the first light path, planoconvex lens 12, semi-transparent semi-reflecting glass 21 and spectral measurement device 23; Described diaphragm 11, in the fixing connection of planoconvex lens 12, is namely fixed on the front surface of planoconvex lens 12; Described spectral measurement device 23 includes spectra collection probe 231; Also include the video alignment device 22 being located in the second light path with semi-transparent semi-reflecting glass 21; After the blue light that testing sample sends passes sequentially through diaphragm 11, planoconvex lens 12, convergent pencil of rays is mapped on semi-transparent semi-reflecting glass 21, wherein, segment beam is transmitted through the spectra collection probe of spectral measurement device 23, forming the first light path, segment beam reflexes to video alignment device 22, forms the second light path. First light path is vertical with the second light path, and specifically can pass through to be arranged to by semi-transparent semi-reflecting glass 21 with the first light path is that 45° angle realizes.
The measured region of video alignment device 22 covers the measured region of spectral measurement device 23, it is simple to utilize video alignment device 22 to record sample position, adjusts the relative position between blue light harm measurement apparatus and testing sample.Namely the light-emitting area position obtained according to video alignment device 22, adjust the relative position between blue light harm measurement apparatus and testing sample, make the light receiving surface alignment sample light-emitting area high-high brightness radiation areas of spectral measurement device 23, directly measure and obtain the effective spoke brightness of harm of maximum blue light.
The measuring surface of described spectral measurement device 23 and the distance of diaphragm 11 are 200mm, it is possible to directly judging the hazard rating that sample likely reaches, test is easy, of many uses; The circular aperture of described diaphragm 11 is 7mm. The size simulation eye pupil maximum conditions of the aperture of the diaphragm, the distance of measuring surface and diaphragm is that 200mm simulates the human eye distance of distinct vision limit, it is possible to the blue light quickly measuring and evaluating light source endangers.
As in figure 2 it is shown, above-mentioned blue light harm measurement apparatus can also include pedestal 13 and light limiter 14, described pedestal 13 is fixed between spectral measurement device 23 and semi-transparent semi-reflecting glass 21, and pedestal 13 has lightlng hole, and lightlng hole is positioned in the first light path; Described light limiter 14 can be a baffle plate, has limit unthreaded hole, the angle of visual field of corresponding 11mrad above; The both sides of pedestal 13 have chute, and light limiter 14 inserts in chute. Described light limiter 14 can translate relative to pedestal 13 so that limit unthreaded hole and lightlng hole overlap, and overlaps through the limit unthreaded hole overlapped and lightlng hole from semi-transparent semi-reflecting glass 21 transmission light out, is finally injected in spectral measurement device 23. As preferably, it is possible to be arranged in light limiter and arrange multiple limit unthreaded hole, with the power of test of expansion equipment, range of application. Such as, the limit unthreaded hole of two corresponding 100mrad, 1.7mrad angles of visual field of difference is additionally set.
As shown in Figure 3, above-mentioned blue light harm measurement apparatus can also include the light filter 15 being arranged between semi-transparent semi-reflecting glass 21 and video alignment device 22, light filter 15 is positioned in the second light path, and described light filter 15 comprises neutral attenuating filters, to extend Instrumentation Operating Areas, to improve precision.
As shown in Figure 4, above-mentioned blue light harm measurement apparatus can also include the beam splitter 16 being arranged between semi-transparent semi-reflecting glass 21 and spectral measurement device 23, and spectral measurement device 23 also includes transient state light collection probe 232. Described beam splitter 16 comprises a light inlet and two light-emitting windows, light inlet and one of them light-emitting window are positioned in the first light path, and the transient state light collection probe 232 of another light-emitting window and spectral measurement device 23 is positioned at same light path. I.e. light beam after the transmission of semi-transparent semi-reflecting glass 21, enters light inlet, and a part pops one's head in 231 through a light-emitting window directive spectra collection, and another part is through another light-emitting window directive transient state light collection probe 232. So can collected specimens luminescence simultaneously changing over and spectral signal, certainty of measurement is high; In addition spectra collection probe and transient state light collection probe can be calibrated mutually, improve certainty of measurement.
Above-mentioned beam splitter 16 specifically can adopt y-type optical fiber as shown in Figure 5.
Claims (6)
1. a blue light harm measurement apparatus, it is characterised in that include the diaphragm (11), planoconvex lens (12), semi-transparent semi-reflecting glass (21) and the spectral measurement device (23) that are sequentially located in the first light path; Described diaphragm (11) is fixing with convex lens (12) to be connected; Described spectral measurement device (23) includes spectra collection probe (231); Described blue light harm measurement apparatus also includes the video alignment device (22) being located in the second light path with semi-transparent semi-reflecting glass (21);Described first light path is vertical with the second light path; The measured region of video alignment device (22) covers the measured region of spectral measurement device (23), and the measuring surface of described spectral measurement device (23) and the distance of diaphragm (11) are 200mm; The circular aperture of described diaphragm (11) is 7mm.
2. blue light according to claim 1 harm measurement apparatus, it is characterized in that, described blue light harm measurement apparatus also includes pedestal (13) and light limiter (14), described pedestal (13) is fixed between spectral measurement device (23) and semi-transparent semi-reflecting glass (21), pedestal has lightlng hole on (13), and lightlng hole is positioned in the first light path; Described light limiter (14) comprises a limit unthreaded hole, the angle of visual field of corresponding 11mrad; The both sides of pedestal (13) have chute, and light limiter (14) inserts in chute.
3. blue light according to claim 2 harm measurement apparatus, it is characterised in that described light limiter (14) also includes two limit unthreaded holes, respectively corresponding 100mrad, 1.7mrad angle of visual field.
4. blue light according to claim 1 harm measurement apparatus, it is characterized in that, described blue light harm measurement apparatus also includes the light filter (15) being arranged between semi-transparent semi-reflecting glass (21) and video alignment device (22), light filter (15) is positioned in the second light path, and described light filter (15) comprises neutral attenuating filters.
5. blue light according to claim 1 harm measurement apparatus, it is characterized in that, described blue light harm measurement apparatus also includes the beam splitter (16) being arranged between semi-transparent semi-reflecting glass (21) and spectral measurement device (23), and described spectral measurement device (23) also includes transient state light collection probe (232); Described beam splitter (16) comprises a light inlet and two light-emitting windows, light inlet and one of them light-emitting window are positioned in the first light path, and transient state light collection probe (232) of another light-emitting window and spectral measurement device (23) is positioned at same light path.
6. blue light according to claim 5 harm measurement apparatus, it is characterised in that described beam splitter (16) is y-type optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964294.XU CN205317347U (en) | 2015-11-26 | 2015-11-26 | Blue light harm measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964294.XU CN205317347U (en) | 2015-11-26 | 2015-11-26 | Blue light harm measuring device |
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| CN205317347U true CN205317347U (en) | 2016-06-15 |
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| CN201520964294.XU Active CN205317347U (en) | 2015-11-26 | 2015-11-26 | Blue light harm measuring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644063A (en) * | 2017-02-16 | 2017-05-10 | 南京第壹有机光电有限公司 | Portable rapid blue light harm detector |
| CN106768326A (en) * | 2016-11-24 | 2017-05-31 | 郑州航空工业管理学院 | A kind of device and its detection method for detecting LED white light spectral qualities |
| CN107621309A (en) * | 2017-09-20 | 2018-01-23 | 南昌大学 | A kind of visualization appraisal procedure of light source blue light harm and non-vision effect |
| CN113125009A (en) * | 2019-12-31 | 2021-07-16 | 欧普照明股份有限公司 | Blue light hazard value testing device and method |
-
2015
- 2015-11-26 CN CN201520964294.XU patent/CN205317347U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768326A (en) * | 2016-11-24 | 2017-05-31 | 郑州航空工业管理学院 | A kind of device and its detection method for detecting LED white light spectral qualities |
| CN106768326B (en) * | 2016-11-24 | 2018-04-24 | 郑州航空工业管理学院 | A kind of device and its detection method for being used to detect LED white light spectral qualities |
| CN106644063A (en) * | 2017-02-16 | 2017-05-10 | 南京第壹有机光电有限公司 | Portable rapid blue light harm detector |
| CN107621309A (en) * | 2017-09-20 | 2018-01-23 | 南昌大学 | A kind of visualization appraisal procedure of light source blue light harm and non-vision effect |
| CN113125009A (en) * | 2019-12-31 | 2021-07-16 | 欧普照明股份有限公司 | Blue light hazard value testing device and method |
| CN113125009B (en) * | 2019-12-31 | 2022-10-28 | 欧普照明股份有限公司 | Blue light hazard value testing device and method |
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