CN203848937U - Image spectrum measuring device - Google Patents
Image spectrum measuring device Download PDFInfo
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- CN203848937U CN203848937U CN201420229760.5U CN201420229760U CN203848937U CN 203848937 U CN203848937 U CN 203848937U CN 201420229760 U CN201420229760 U CN 201420229760U CN 203848937 U CN203848937 U CN 203848937U
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Abstract
The utility model discloses an image spectrum measuring device which comprises more than two color wheels, a number of color filter units and a coaxial drive device. The coaxial drive device is used to carry out flexible switching of a number of color wheels. According to the technical scheme, simply by using a measuring device, accurate and fast measuring can be carried out on a wide band image spectrum; the color filter units can be flexibly combined; the interval of measured bands can be adjusted; and the whole device has the advantages of high efficiency, small volume, low cost, good stability, high measuring accuracy and the like.
Description
[technical field]
The invention belongs to light and actinometry field, be specifically related to a kind of image spectrum measurement mechanism.
[background technology]
Existing image spectrum measurement mechanism is in the time measuring broadband target light (as visible light wave range 380nm-780nm), generally realize by following scheme: a colour disk is set between imaging device and detector array, several broadband color filters are set on colour disk; Light incides on color filter through imaging device, and driven by motor colour disk rotates, and by different broadband color filter incision light paths, the light after color filter filters is received, surveys by detector array, realizes the measurement of different-waveband hypograph spectrum.On the one hand, due to the color filter limited amount arranging on single colour disk, in measurement wave band, transmission region wider range of color filter, only can obtain the image under the broadband (as 380nm-480nm) of negligible amounts, cannot accurately obtain the spectrum picture in narrower wave band; On the other hand, color filter is difficult to the identical transmittance of maintenance within the scope of compared with broadband, and accuracy of measurement is lower.
Prior art provides two kinds of approach to address the above problem, the first, by increase the quantity of color filter on single colour disk, will certainly increase like this size of colour disk, large-sized colour disk not only can increase the volume of whole measurement mechanism, and stability is also difficult to ensure card; Second, utilizing multiple narrow band image spectral measurement device combinations to realize broadband image spectrum measures, each narrow band image spectral measurement device includes a colour disk that is provided with several narrow wave band color filters, this technical scheme needs multiple image spectrum measurement mechanisms that comprise the equipment such as imaging device, detector array, with high costs, and between distinct device, there are differences, cause measurement result accurately to integrate, further increase measuring error.
[utility model content]
For above-mentioned the deficiencies in the prior art, the present invention aims to provide a kind of high precision image spectral measurement device, has the features such as accuracy of measurement is high, easy to operate, volume is little, cost is low.
A kind of image spectrum measurement mechanism of the present invention is achieved through the following technical solutions.
A kind of image spectrum measurement mechanism, comprise imaging device and detector array, it is characterized in that, also comprise multiple color-filter units, coaxial drive device and two or more colour disks, a color-filter unit and same colour disk are at least set on each colour disk has a color-filter unit to be arranged in optical path at the most, and the combination transmission region that is arranged on the color-filter unit on colour disk covers whole wave band to be measured; Coaxial drive device drives colour disk that the color-filter unit on it is cut in the light path between imaging device and detector array, incident light is through imaging device incident, see through more than one or one color-filter unit that is arranged in optical path, detector array receives the spectrum picture that sees through color-filter unit.
The present invention is by arranging more than two colour disk, more than one color-filter unit is set on each colour disk, the transmission region of different color-filter units is different but combination transmission region covers whole wave band to be measured, coaxial drive device is by driving colour disk that more than one color-filter unit is cut in optical path, light passes through successively imaging device and different color-filter unit, is received by detector array, and detector array receives the spectrum picture under more than one color-filter unit combination transmission region.It is pointed out that in the present invention, multiple colour disks can coaxially arrange in optical path, also can be according to alternate manner setting, and utilize coaxial drive device that different colour disks are cut in optical path; In optical path, can only there is a color-filter unit, by by different color-filter unit incision optical paths, realize the measurement of different narrow band spectrum image; Also can have multiple color-filter units, multiple color-filter units are from multiple colour disks, and the color-filter unit on different colour disks combines mutually, form different combination transmission regions, realize the spectral image measurement under various combination transmission region.
This technical scheme arranges multiple colour disks, and realizes the flexible switching of multiple colour disks by coaxial drive device, and making in optical path can the more color-filter unit of magnitude setting, thereby wave band to be measured can be divided into abundant discrete narrow wave band to measure piecemeal.On the one hand, due in each narrow wave band interval, color-filter unit is easily realized the consistent translucent effect that transmittance is identical, and then realizes high accuracy of measurement in whole measurement wave band; On the other hand, the color-filter unit on different colour disks can flexible combination, and the combination transmission region at different-waveband interval is provided, thereby realizes more diversified spectral image measurement.Than conventional solution, by increasing multiple colour disks of small volume, utilization can drive the coaxial drive device of multiple colour disks to substitute traditional motor that only can drive a colour disk, only need separate unit measurement mechanism can realize accurate, the Quick Measurement of high spectral resolution image spectrum within the scope of broadband, and color-filter unit can flexible combination, measure wave band interval adjustable, whole device has efficiently, volume is little, low cost, good stability, accuracy of measurement high.
The present invention also can further optimize by the following technical programs:
As preferably, described coaxial drive device drives two or more colour disks to optical path, and detector array receives various combination and sees through the spectrum picture under wave band, until complete the measurement of whole wave band to be measured.Coaxial drive device can be realized quick switching and the flexible combination of different color-filter units on different colour disks, and then realize different combination transmission regions, coaxial drive device drives more than two colour disk mutually to combine, mutually combine by different color-filter units on different colour disks, to form different combination transmission regions, received by detector array through the light of combination transmission region, under the drive of coaxial drive device, different colour disks combine mutually, until complete the measurement of target wave band to be measured.
In optical path, described color-filter unit can be the combination of band-pass filter and/or long logical color filter and/or short logical color filter, described combination sees through wave band wave band to be measured is divided into multiple measurement wave bands, and coaxial drive device drives colour disk that the color-filter unit on it is cut to light path one by one and realizes wave band measurement one by one.Traditional image spectrum measurement mechanism only comprises a colour disk, want to obtain the spectrum picture under different-waveband interval, color filter on each colour disk is necessary for band-pass filter, transmission region difference and the integral light-transmitting wave band of each band-pass filter cover wave band to be measured, could realize piecemeal and measuring, for example, the transmission region of adjacent band-pass filter is end to end or overlapping, and the combination transmission region of multiple band-pass filters covers whole wave band to be measured.And in the present invention, can comprise more than one color-filter unit, by the flexible combination of multiple colour disks, color-filter unit on colour disk can be selected flexibly, not only be confined to band-pass filter, it can be long combination of leading to color filter and short logical color filter, or the combination of long logical color filter and band-pass filter, or the combination of short logical color filter and band-pass filter, or the combination of band-pass filter and band-pass filter etc., diversified array mode is provided, this diversified array mode, the combination transmission region not only forming can be realized flexible, and can realize the measurement scheme at more different-wavebands interval by limited color-filter unit, also can obtain the logical effect of better band by the combination of color-filter unit, significantly improve the performance of measurement mechanism.
As a kind of technical scheme, can comprise broadband printing opacity unit, more than one broadband printing opacity unit can be set on each colour disk, in optical path, can comprise more than one broadband printing opacity unit.Although the color-filter unit on multiple colour disks can be realized mutual combination under the drive of coaxial drive device, but only need in the technical scheme of one or several color-filter unit combinations at some, utilize this technical scheme, when measurement, without unwanted colour disk is cut off to light path, only need the broadband printing opacity unit incision optical path on it.Particularly, by one or several selected color-filter unit incision optical path, by the broadband printing opacity unit incision optical path on other colour disk, from light difference color element and the broadband printing opacity unit after filtration of imaging device, received by detector array.
Above-mentioned broadband printing opacity unit can be through hole or sheet glass, and it does not hinder or ends transmitted ray, does not affect for the light transmission in optical path, and colour disk is also without cutting off light path.Broadband printing opacity unit also can be positioned at for wave band to be measured the broadband color filter of its transmission region, this broadband color filter can be band-pass filter or long logical color filter or short logical color filter, for example wave band to be measured is 380nm～780nm, the transmission region of band-pass filter can be 300nm～800nm, the transparency range of band-pass filter can cover whole wave band to be measured, only allows the light in this wavelength band to see through; If short logical color filter, cutoff wavelength can be 800nm, only allows the wavelength below 800nm to see through; If long logical color filter, its cutoff wavelength can be 300nm, only allows wavelength more than 300nm to see through.
In the present invention, the turning axle of described coaxial drive device and optical axis are mutually vertical or be parallel to each other.In the present invention, the set-up mode of colour disk can be definite according to concrete technical scheme, if colour disk is a disk, the color-filter unit on disk and through hole are established at grade, and now turning axle should be mutually vertical with optical axis, as shown in Figure 2; If colour disk is ring-type, color-filter unit and through hole arrange along annulus surrounding, and now turning axle should be parallel to each other with optical axis, as shown in Figure 8.In addition, if colour disk passes through special setting, coaxial drive device also can drive colour disk around the angled rotation of optical axis, and the turning axle of coaxial drive device and optical axis are angled, as long as by the color-filter unit incision optical path on colour disk.
As preferably, described coaxial drive device is to realize the coaxial motor that more than two colour disk switches simultaneously, combines, coaxial motor comprises more than two concentric shafts of nested setting successively, and the quantity of described concentric shafts is corresponding one by one with the quantity of colour disk, connects a colour disk in each concentric shafts.Each colour disk is connected with concentric shafts independently, each concentric shafts all can be under the drive of coaxial motor independent switching simultaneously, multiple colour disks can switch simultaneously, the combination of multiple colour disks is identical with the time that single colour disk switches, without extra increase switching time; In addition, all need the technical scheme of a driven by motor than each colour disk, coaxial motor only needs separate unit motor to realize, and has the features such as efficiency is high, cost is low, volume is little.
As a kind of technical scheme, above-mentioned more than two concentric shafts comprises that one is positioned at the solid shaft of inner side and the tubular shaft that more than one diameter increases successively.The axle that is concentric shafts minimum diameter can be solid shaft, and the diameter of other tubular shaft increases and nested setting successively.Solid shaft is positioned at inner side, and other axle is tubular shaft, and each axle is all connected with a colour disk, and the quantity of concentric shafts is suitable with the quantity of colour disk.
As a kind of technical scheme, described coaxial drive device is to realize the sequential motor that more than two colour disk sequential is switched, combined, and sequential motor is electrically connected with more than two colour disk sequential, respectively the color-filter unit on corresponding colour disk is cut in optical path.Be different from coaxial motor, the motor is here sequential motor, and multiple colour disk sequential are switched, and, in color-filter unit anabolic process, need the mode of sequential control, realize respectively the switching of colour disk.In such scheme, described coaxial drive device also comprises can be by the switching device shifter in more than one colour disk incision optical path, and as solenoid valve, described solenoid valve and sequential motor combination realize the combination of different color-filter units on different colour disks.Solenoid valve is cut one or more colour disk in optical path by electromagnetic action, recycling sequential motor is cut into the color-filter unit on different colour disks in optical path respectively, combination realizes different combination transmission regions mutually, realizes the measurement of spectrum picture under different narrow wave band.
In visible light wave range, described color-filter unit combination at least can be divided into 20nm or the spectrum interval below 20nm by measuring wave band.Different documents is inconsistent to the division of visible light wave range, but color-filter unit in this technical scheme should be measured wave band to major general's visible ray and be divided into 20nm and following spectrum interval.At ultraviolet band, the color filter quantity on spectrum color filter switching device shifter at least can be divided into 15nm or the spectrum interval below 15nm by measuring wave band; At infrared band, the color filter quantity on spectrum color filter switching device shifter at least can be divided into 30nm or the spectrum interval below 30nm by measuring wave band.
Whole measurement wave band is divided into multiple discrete narrow wavelength band by the present invention, but zoned format can be according to specific needs and band characteristic select.In wave band to be measured, the combination transmission region of multiple color-filter units is evenly divided wave band to be measured or is less than the wavelength interval of Long wavelength region in the wavelength interval of short wavelength regions or combines printing opacity interval according to preset rules setting.For example, wave band to be measured is 380nm～780nm, by the mutual combination of different color-filter units, wave band to be measured is evenly divided into the narrow wave band that is spaced apart 20nm; Or in some target wave band, according to preset rules, corresponding wave band interval is set, if the spectrum picture of certain object between 450nm～500nm changes obviously, can reduce the wavelength interval in this wave band, as wave band in other wave band is spaced apart 30nm, and it is even narrower the transmission region in this wave band can be chosen as to 10nm, with the variation of spectrum picture in this wave band of clear reflection.
In addition, the wavelength interval that the combination transmission region of multiple color-filter units can wave band to be measured is suitable, or combination transmission region is slightly larger than or is slightly less than target wavelength interval.For example, if the wavelength interval of wave band to be measured is determined, the combination transmission region of multiple color-filter units can be at intervals or head and the tail overlapping or mutually overlapping, combine transmission region and can be greater than or equal to or be less than wavelength interval, set-up mode is flexible, as shown in Fig. 7 (a), 7 (b), 7 (c).
The thickness of color-filter unit has certain influence for transmittance, is the measuring error of avoiding being caused by thickness, preferably, and by identical each color-filter unit thickness.In addition, in the present invention, color-filter unit can be rigidity or flexibility, as traditional glass color filter or flexible color-filter unit.
As preferably, comprise processor, the measurement result of described detector array is directed in microprocessor to be processed.In technical scheme of the present invention, what under each transmission region, record is the spectrum picture under this specific band, and the spectrum picture difference that some object presents under different wave bands can be in order to recognition object type; In addition,, after the spectrum picture in acquisition wave band to be measured under each narrow wave band interval, by combined treatment, can obtain the spectral distribution on certain specified point.
In sum, the present invention is by arranging multiple colour disks, utilize coaxial drive device to realize the flexible switching of multiple colour disks, only need separate unit measurement mechanism can realize accurate, the Quick Measurement of broadband image spectrum, and color-filter unit can flexible combination, measure wave band interval adjustable, whole device has efficiently, volume is little, low cost, good stability, accuracy of measurement high.
[brief description of the drawings]
The structural representation that accompanying drawing 1 is image spectrum measurement mechanism of the present invention;
Accompanying drawing 2 is the structural representation of color-filter unit on colour disk in embodiment 1, embodiment 2 and embodiment 3
Accompanying drawing 3 is the structural representation of coaxial motor in embodiment 1, embodiment 2 and embodiment 3;
The transmission region schematic diagram that accompanying drawing 4 combines mutually for different color-filter units, the transmission region schematic diagram that wherein Fig. 4 (a) is band-pass filter, Fig. 4 (b) is the combination transmission region schematic diagram of long logical color filter and short logical color filter, Fig. 4 (c) is the combination transmission region schematic diagram of short logical color filter and band-pass filter, and Fig. 4 (d) is the combination transmission region schematic diagram of long logical color filter and band-pass filter;
Accompanying drawing 5 is the front elevation of color-filter unit in embodiment 4;
Accompanying drawing 6 is the structural representation of solenoid valve and sequential motor in embodiment 4;
Accompanying drawing 7 is the schematic diagram of the logical color-filter unit assembled arrangement of different band, the transmission region phase that wherein 7 (a) are band-pass filter schematic diagram across a certain distance, the overlapping schematic diagram of transmission region head and the tail that 7 (b) are band-pass filter, the transmission region that 7 (c) are band-pass filter is overlapping schematic diagram mutually;
Accompanying drawing 8 is for using the device schematic diagram of annular colour disk in embodiment 5.
1-imaging device; 2-colour disk; 3-color-filter unit; 4-coaxial drive device; 5-detector array; 6-broadband printing opacity unit; 7-processor; 8-turning axle; 9-optical axis.
[embodiment]
Embodiment 1
The present embodiment comprises imaging device 1, detector array 5, coaxial drive device 4 and two colour disks 2, on each colour disk 2, be provided with ten color-filter units 3 and a broadband printing opacity unit 6, be in whole device, to comprise altogether 20 color-filter units 3 and two through holes, the broadband printing opacity unit 6 is here through hole, and that color-filter unit 3 is the thickness of band-pass filter and each color filter is all identical, corresponding transmission region is respectively 380nm～400nm, 400nm～420nm, 760nm～780nm, the transmission region that is each color-filter unit 3 is spaced apart 20nm, the combination transmission region of multiple color-filter units 3 covers wave band 380nm～780nm to be measured, specifically as shown in table 1.
The transmission region of different band-pass filters on two colour disks of table 1
Two colour disks 2 are all arranged in the light path between imaging device 1 and detector array 5, can only have a color-filter unit 3 or a broadband printing opacity unit 6 to be arranged in optical path on same colour disk 2 at every turn.Coaxial drive device 4 in the present embodiment is coaxial motor, comprises two concentric shafts of nested setting successively, connects a colour disk 2 in each concentric shafts, the concentric shafts of inner side is solid shaft, outside be tubular shaft, two colour disks 2 coaxially arrange, concentric shafts drives corresponding colour disk 2 to rotate.As shown in Figure 1, colour disk turning axle 8 is parallel to each other with optical axis 9;
When measurement, tubular shaft drives corresponding colour disk 2, gone up corresponding through hole is cut in optical path, and the solid shaft of inner side drives corresponding colour disk 2 and a color-filter unit 3 on it is cut in optical path and measures simultaneously, detector array 5 receives after the spectrum picture under corresponding color-filter unit 3; It is motionless that tubular shaft keeps, and solid shaft drives corresponding colour disk 2 successively other color-filter unit 3 on it to be cut in optical path, until complete the measurement of all color-filter units 3 on this colour disk 2, then the through hole on this colour disk 2 is cut in optical path; Again each color-filter unit 3 on tubular shaft is cut in optical path successively, until complete the measurement of all color-filter units 3 on this colour disk 2, then the through hole on this colour disk 2 is cut in optical path.In above-mentioned measuring process, in a band-pass filter incision optical path on a colour disk 2 time, on another colour disk 2, cut in optical path with through hole, be that synchronization only has a band-pass filter to be arranged in optical path, the spectrum picture that detector array 5 receives in this band-pass filter transmission region, its working method is as shown in Fig. 4 (a).
The present embodiment also comprises processor 7, processor 7 is electrically connected with detector array 5, processor 7 receives, processes the each measurement data from detector array 5, can provide as required the spectral distribution on spectrum picture or certain point under different-waveband, customize the spectral distribution of each point in evaluating objects region.
In addition, except the set-up mode of color-filter unit 3 end to end band-pass filters in the present embodiment, if the wavelength interval of wave band to be measured is determined, the combination transmission region of two band-pass filters can be at intervals or head and the tail overlapping or mutually overlapping, combine transmission region and can be greater than or equal to or be less than wavelength interval, set-up mode is flexible, as shown in Fig. 7 (a), 7 (b), 7 (c).
Embodiment 2
Different from embodiment 1, the present embodiment comprises four colour disks 2, on each colour disk 2, be provided with ten color-filter units 3 and a broadband printing opacity unit 6, be in whole device, to comprise altogether 40 color-filter units 6 and four through holes, the broadband printing opacity unit 6 is here through hole, and color-filter unit 3 is combinations of long logical color filter and short logical color filter, the thickness of each color filter is all identical; Four colour disks 2 are designated as respectively colour disk 2-1, colour disk 2-2, colour disk 2-3 and colour disk 2-4, ten long logical color filters and a through hole are wherein set respectively on colour disk 2-1 and colour disk 2-3, and ten short logical color filters and a through hole are set respectively on colour disk 2-2 and colour disk 2-4, on three colour disks 2, the cutoff wavelength of different color-filter units is as shown in table 2.
The cutoff wavelength of different color-filter units on four colour disks of table 2
Corresponding with colour disk 2 quantity, the coaxial motor in the present embodiment comprises four concentric shafts (three tubular shafts, a solid shaft), and colour disk 2-1 is connected with solid shaft, and colour disk 2-2, colour disk 2-3 are connected with the tubular shaft that colour disk 2-4 increases progressively with diameter successively.In the time of actual measurement, the concentric shafts of colour disk 2-3 and colour disk 2-4 is by the through hole incision optical path on it, the concentric shafts of colour disk 2-1 and colour disk 2-2 is cut optical path by the color-filter unit on it 3, short logical color filter on the logical color filter of length and the colour disk 2-2 of colour disk 2-1 combines mutually, can realize 20nm, 40nm, the measurement of the spectrum picture at equiwavelength interval, the short logical color filter that the logical color filter of length that the upper cutoff wavelength of for example colour disk 2-1 is 380nm is 400nm with the upper cutoff wavelength of colour disk 2-2 combines, can realize the measurement of the interior spectrum picture of 380nm～400nm wave band (20nm), the short logical color filter that the logical color filter of length that the upper cutoff wavelength of colour disk 2-1 is 380nm is 420nm with the upper cutoff wavelength of colour disk 2-2 combines, can realize the measurement of the interior spectrum picture of 380nm～420nm wave band (40nm), the like, until complete the combination of colour disk 2-1 and the upper different color filters of colour disk 2-2.
Similar with the metering system of colour disk 2-1 and colour disk 2-2, through hole on colour disk 2-1 and colour disk 2-2 is cut respectively in optical path, color-filter unit 3 on colour disk 2-3 and colour disk 2-4 is combined mutually according to required wave band interval, realize the measurement of the spectrum picture under corresponding wave band.
The working method of the present embodiment is as shown in Fig. 4 (b), by the logical color filter of the length on different colour disks 2 and short logical color filter are all cut in optical path, long logical color filter and short logical color filter form combination transmission region, the spectrum picture that detector array 5 receives under this combination transmission region.
Embodiment 3
Similar to Example 1, the present embodiment also comprises three colour disks 2, be designated as respectively colour disk 2-1, colour disk 2-2 and colour disk 2-3, wherein colour disk 2-1 arranges ten band-pass filters, colour disk 2-2 arranges ten short logical color filters and a through hole, colour disk 2-3 arranges ten long logical color filters and a through hole, and on three colour disks 2, transmission region and the cutoff wavelength of different color-filter units 3 are as shown in table 3.
Transmission region and the cutoff wavelength of color filter on three colour disks of table 3
Corresponding with colour disk 2 quantity, the coaxial motor in the present embodiment comprises three concentric shafts (two tubular shafts, a solid shaft), and colour disk 2-1 is connected with solid shaft, and colour disk 2-2 is connected with the tubular shaft that colour disk 2-3 increases progressively with diameter successively.In the time of actual measurement, the tubular shaft of colour disk 2-3 is by the through hole incision optical path on it, 380nm～420nm is cut optical path by the solid shaft of colour disk 2-1, the short logical color filter incision optical path that the tubular shaft of colour disk 2-2 is 400nm by cutoff wavelength, detector array 5 receives the spectrum picture under 380nm～400nm wave band; The tubular shaft of colour disk 2-2 is by the through hole incision optical path on it, the logical color filter incision of the length optical path that the tubular shaft of colour disk 2-3 is 400nm by cutoff wavelength, detector array 5 receives the spectrum picture under 400nm～420nm wave band, the like, until complete the measurement of the spectrum picture in wave band to be measured.The transfer sequence that it is pointed out that color-filter unit 3 on colour disk 2-1, colour disk 2-2 and colour disk 2-3 can arbitrarily change, as long as it completes the spectral image measurement of whole wave band to be measured according to required wave band interval.
The working method of the present embodiment is as shown in Fig. 4 (c) and 4 (d), by band-pass filter is combined with long logical color filter and short logical color filter respectively, form different combination transmission regions, the spectrum picture that detector array 5 receives under this combination transmission region.
Embodiment 4
All different from above three embodiment, the present embodiment comprises coaxial drive device 4, two colour disks 2, the coaxial drive device 4 here comprises sequential motor and solenoid valve, the mode that adopts solenoid valve and sequential motor to combine drives colour disk 2, on each colour disk 2, be provided with ten color-filter units 3, as shown in Figure 5 and Figure 6, and that color-filter unit 3 is the thickness of band-pass filter and each color filter is all identical, the transmission region that band-pass filter is corresponding is identical with embodiment 1, concrete visible table 1.In this embodiment, wave band to be measured is 380nm～780nm.
When measurement, solenoid valve acts on respectively different colour disk 2, and recycling sequential motor is cut into the color-filter unit 3 on corresponding colour disk 2 in optical path respectively, and combination realizes different combination transmission regions mutually, realizes the measurement of spectrum picture under different narrow wave band.Particularly, two colour disks 2 are designated as respectively to colour disk 2-1 and colour disk 2-2, and solenoid valve acts on colour disk 2-1, and sequential driven by motor colour disk 2-1 rotates, order is cut the band-pass filter on it in optical path one by one, until complete the measurement of the upper all band-pass filters of colour disk 2-1; Solenoid valve acts on colour disk 2-2, sequential driven by motor colour disk 2-2 rotates, and the band-pass filter on it is cut in optical path one by one successively, until complete the measurement of the upper all band-pass filters of colour disk 2-2, so far, complete in wave band 380nm～780nm to be measured, the measurement of all spectrum pictures of 20nm wave-wave spacer segment.
Embodiment 5
All different from above four embodiment, the present embodiment comprises two annular colour disks 2, and the color-filter unit 3 of some is all set on each colour disk 2, and coaxial drive device 4 is coaxial motor, and two colour disks 2 coaxially arrange, and concentric shafts drives corresponding colour disk 2 to rotate; Colour disk turning axle 8 is mutually vertical with optical axis 9, as shown in Figure 8.
In measuring process, the working method of two colour disks 2 can be concrete example or other combination in above embodiment, for example, through hole on a colour disk 2 is arranged in optical path all the time, another colour disk 2 rotates in turn different color-filter unit 3 is cut in optical path, realizes the spectral measurement of different-waveband; Or the color-filter unit flexible combination on two colour disks 2, as the combination of band-pass filter and short logical color filter.
Claims (11)
1. an image spectrum measurement mechanism, comprise imaging device (1) and detector array (5), it is characterized in that, also comprise multiple color-filter units (3), coaxial drive device (4) and two or more colour disks (2), a color-filter unit (3) and same colour disk (2) are at least set on each colour disk (2) has a color-filter unit (3) to be arranged in optical path at the most, and the combination transmission region that is arranged on the color-filter unit (3) on colour disk (2) covers whole wave band to be measured; Coaxial drive device (4) drives colour disk (2) that the color-filter unit on it (3) is cut in the light path between imaging device (1) and detector array (5), incident light is through imaging device (1) incident, see through more than one or one color-filter unit (3) that is arranged in optical path, detector array (5) receives the spectrum picture that sees through color-filter unit (3).
2. image spectrum measurement mechanism as claimed in claim 1, it is characterized in that, described coaxial drive device (4) drives two or more colour disks (2) to optical path, detector array (5) receives various combination and sees through the spectrum picture under wave band, until complete the measurement of whole wave band to be measured.
3. image spectrum measurement mechanism as claimed in claim 1, it is characterized in that, in optical path, described color-filter unit (3) can be the combination of band-pass filter and/or long logical color filter and/or short logical color filter, described combination sees through wave band wave band to be measured is divided into multiple measurement wave bands, and coaxial drive device (4) drives colour disk that the color-filter unit on it (3) is cut to light path one by one and realizes wave band measurement one by one.
4. image spectrum measurement mechanism as claimed in claim 1, it is characterized in that, comprise broadband printing opacity unit (6), on each colour disk (2), more than one or one broadband printing opacity unit (6) can be set, in optical path, can comprise more than one broadband printing opacity unit (6).
5. image spectrum measurement mechanism as claimed in claim 4, is characterized in that, described broadband printing opacity unit (6) can be through hole or sheet glass or wave band to be measured and be positioned at the broadband color filter of its transmission region.
6. image spectrum measurement mechanism as claimed in claim 1, is characterized in that, the turning axle (8) of described coaxial drive device (4) and optical axis (9) are mutually vertical or be parallel to each other.
7. the image spectrum measurement mechanism as described in claim 1 or 6, it is characterized in that, described coaxial drive device (4) is for can realize the coaxial motor that more than two colour disk (2) switches, combines simultaneously, coaxial motor comprises more than two concentric shafts of nested setting successively, the quantity of described concentric shafts is corresponding one by one with the quantity of colour disk (2), connects a colour disk (2) in each concentric shafts.
8. image spectrum measurement mechanism as claimed in claim 7, is characterized in that, described more than two concentric shafts comprises that one is positioned at the solid shaft of inner side and the tubular shaft that more than one diameter increases successively.
9. the image spectrum measurement mechanism as described in claim 1 or 6, it is characterized in that, described coaxial drive device (4) switches for realizing more than two colour disk (2) sequential, the sequential motor of combination, sequential motor is electrically connected with more than two colour disk (2) sequential, respectively the color-filter unit (3) on corresponding colour disk (2) is cut in optical path.
10. image spectrum measurement mechanism as claimed in claim 9, it is characterized in that, described coaxial drive device (4) also comprises can be by the solenoid valve in more than one colour disk (2) incision optical path, and described solenoid valve and sequential motor combination realize the combination of the upper different color-filter units (3) of different colour disks (2).
11. image spectrum measurement mechanisms as claimed in claim 1, is characterized in that, in visible light wave range, described color-filter unit (3) combination at least can be divided into wave band to be measured 20nm or the spectrum interval below 20nm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015169144A1 (en) * | 2014-05-06 | 2015-11-12 | 杭州远方光电信息股份有限公司 | Image spectrum measurement device |
| WO2016065856A1 (en) * | 2014-10-30 | 2016-05-06 | 杭州远方光电信息股份有限公司 | Light radiation measurement method based on light filtering unit and apparatus thereof |
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| WO2016065856A1 (en) * | 2014-10-30 | 2016-05-06 | 杭州远方光电信息股份有限公司 | Light radiation measurement method based on light filtering unit and apparatus thereof |
| CN105628190A (en) * | 2014-10-30 | 2016-06-01 | 杭州远方光电信息股份有限公司 | Method and device for measuring optical radiation on the basis of light-filtering units |
| CN104297159A (en) * | 2014-11-03 | 2015-01-21 | 苏州精创光学仪器有限公司 | Reference light sheet selecting device for glass measurement |
| CN114619170A (en) * | 2022-02-17 | 2022-06-14 | 毛望龙 | Intelligent monitoring device and method for welding pool imaging |
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