CN201247143Y - Distribution photometer - Google Patents
Distribution photometer Download PDFInfo
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- CN201247143Y CN201247143Y CNU2008201629684U CN200820162968U CN201247143Y CN 201247143 Y CN201247143 Y CN 201247143Y CN U2008201629684 U CNU2008201629684 U CN U2008201629684U CN 200820162968 U CN200820162968 U CN 200820162968U CN 201247143 Y CN201247143 Y CN 201247143Y
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Abstract
The utility model discloses a distribution photometer, wherein light which is emitted from a measured light source in a certain direction is reflected to a detector by the other subsequent reflectors after being reflected by a first polarizing reflector which does circular motion corresponding to the measured light source, all the reflectors in the light path make up and always keep the depolarization reflector mirror relation during the measuring, since the polarization which is generated by the polarizing reflector and a compensatory reflector are compensated and counteracted with each other, the light intensity of the reflecting light which lastly enters the detector is also unrelated with the polarization state of incident light, and the mirror in the light path can not bring auxiliary polarization to the reflecting light. The photometer can conveniently and effectively eliminates the polarization problem which is brought by the mirror reflecting, reduces or eliminates the measuring errors due to the polarization problem of the reflectors and improves the measuring accuracy.
Description
[technical field]
The utility model relates to the surveying instrument of a kind of light and radiation, the various types of light sources such as indoor lamp, road lamp, Projecting Lamp, auto lamp and the light fixture light distribution on all directions (or luminous intensity distribution performance) that are mainly used in various sizes are measured, and the luminous flux measurement of light source and light fixture.
[background technology]
Distribution photometer is generally realized the luminous intensity distribution measurement of light source or light fixture with illumination photometry and illumination square distance law of reciprocity, for satisfying illumination square distance law of reciprocity, the necessary long enough of optical path distance between detector and measured light is so that can be with the approximate pointolite of regarding as of measured light at detector position.Simultaneously, realize accurate measurement, distribution photometer must keep the measured light steady operation again, makes the burning-point attitude of measured light constant as far as possible.The catoptron of rotary mirror type distribution photometer utilization rotation reflexes to the measuring beam of measured light on the detector, can realize above-mentioned measuring condition preferably, be recommended to be widely used in the luminous intensity distribution measurement of various light sources and light fixture by International Commission on Illumination (CIE).
Traditional rotary mirror type distribution photometer has three kinds of typical types.
A kind of is center rotary reflection mirror distribution photometer 100, as shown in Figure 1, rotating mirror 102 in the distribution photometer of such scheme is in center of rotation, rotating mirror 102 and pivoted arm 105 are around main axis 103 rotations in measurement, and the arm 108 of the measured light 104 of clamping links to each other with pivoted arm 105, rotate around catoptron 102, arm 105 must rotate around asessory shaft 109 round about synchronously simultaneously, constant with the burning-point attitude that keeps measured light 104, rotating mirror 102 will be from the beam reflection of measured light 104 to the detector 106 that is fixedly installed on second pedestal 111; Measured light 104 can rotate around self Z-axis, to switch different measurement planes.
Another kind is a circular motion reflection mirror distribution photometer 200, and as shown in Figure 2, in the distribution photometer of this scheme, first pivoted arm 205 on first pedestal 201 rotates around main axis 203, and rotating mirror 102 is installed in an end of first pivoted arm 201; Be positioned on the main axis 203 by arm 208 clamping measured lights 206, rotating mirror 202 is around measured light 204 rotations, and the light that measured light 204 is sent reflexes on the detector 206 that is arranged on second pedestal 211 through rotating mirror 202; Detector 206 can be fixed, and this moment, the optical axis of detector 206 overlapped with main axis 203; Perhaps detector 206 also can be connected with second rotary drive mechanism 117, with the synchronous coaxial rotation of catoptron, this moment detector 206 the setting that forms an angle of optical axis and main axis 203, feasible light beam normal incidence detector 206 from rotating mirror; Measured light 104 can rotate around self Z-axis, to switch different measurement planes.
The third is centrifugal circular motion reflection mirror distribution photometer 300, as shown in Figure 3, rotating mirror 302 in the distribution photometer of such scheme and measured light 304 are not in center of rotation, but be positioned at the two ends of the pivoted arm 305 that rotates around main axis 303, arm 308 links to each other with pivoted arm 305, arm 305 must rotate around asessory shaft 109 round about synchronously simultaneously, constant with the burning-point attitude that keeps measured light 304, in measurement, rotating mirror 102 and measured light 304 all rotate around main axis, and rotating mirror 302 will be from the beam reflection of measured light 304 detector 306 to second pedestal 311; Measured light 304 can rotate around self Z-axis, to switch different measurement planes.
Because the more existing defectives of above-mentioned three kinds of distribution photometers have been invented synchronous reflection distributing photometer recently, the bimirror distribution photometer is typical synchronous reflection distributing photometer.In fixed counter-mirror type bimirror distribution photometer scheme shown in Figure 4, first pivoted arm 405 on first pedestal 401 rotates around main axis, and first catoptron 402 and first detector 410 are installed on first pivoted arm 405; Measured light 404 is on the main axis of first catoptron 402 of making circular motion, and measured light 404 can be around self Z-axis rotation; Second catoptron 422 is fixedly installed on second pedestal 311, and main axis is by the center of second catoptron; The light of measured light 404 incides on the detector 410 of synchronous rotation through first catoptron 402 and second catoptron, 422 beam reflected.Synchronous reflection distributing photometer can available energy reduce the darkroom occupation of land, keeps light stability, reduces interference of stray light.
Above-mentioned several rotary mirror type distribution photometer is widely used in also proposing in industry and the breadboard technological document that it should be noted that CIE simultaneously, answers the error that polarization brought of attention reflex mirror during use rotary mirror type distribution photometer.Catoptron be owing to following reason can be brought polarization problem, and influences measurement result.
The plane of being formed with the normal of incident light and catoptron is a plane of incidence.Any a branch of incident light can be decomposed into the light (s ripple) of vertical incidence face direction vibration and be parallel to the light (p ripple) of plane of incidence direction vibration, and after light generation direct reflection, catoptrical light intensity is expressed from the next:
I
m＝I
p·ρ
p(θ)+I
s·ρ
s(θ)
Because usually p ripple and s wave reflection rate are unequal, and the difference between p ripple and the s wave reflection rate also can change, and as shown in Figure 4, so certain additional polarization can take place reflected light.Simultaneously under certain angle, be the total reflectivity of this light of reflector group with the ratio of reflected light and incident light light intensity.Because the p ripple of natural incident light and the light intensity of s ripple equate that catoptron can be represented the arithmetic mean of p ripple and s wave reflection rate to the total reflectivity of natural light; And for polarized incident light, the total reflectivity of catoptron is relevant with the polarization degree, and expression is more complicated.Therefore in existing rotary mirror type distribution photometer, the measuring beam light intensity that detector is received and the polarization of measured light have very strong dependence.Because the light beam polarization state of standard lamp and measured light and various light source or light fixture has nothing in common with each other, the mirror polarization problem that is difficult to eliminate in the rotary mirror type distribution photometer may be brought appreciable measuring error.
Though the CIE technological document has proposed the mirror polarization problem in the rotary mirror type distribution photometer, the measuring error that the concrete way that the CIE technological document does not provide is eliminated or compensatory reflex mirror polarization is brought.
Using low polarization dependence catoptron is the unique way that reduces polarization error in the present rotary mirror type distribution photometer, low polarization dependence catoptron generally adopts the method for surface coating depolarized, but cost is higher on the one hand for this method, this method can only reduce the polarization problem that above-mentioned direct reflection is brought to a certain extent on the other hand, catoptron still exists p ripple and s wave reflection rate difference, the depolarized spectral band that is suitable for of plated film is narrower simultaneously, and incident angle limited to some extent, the incident angle of adjusting light will have a strong impact on depolarized effect.
[summary of the invention]
The utility model aims to provide a kind of distribution photometer, can be when keeping rotary mirror type distribution photometer superiority, conveniently, eliminate the polarization problem that catoptron brings effectively, on the either direction of space, the light that measured light sends is consistent with the polarized state of light of incident detector, and the polarization state of spatial light intensity distribution measuring and measured light is irrelevant.
Technical characterictic of the present utility model is as follows:
A kind of distribution photometer, comprise arm, by the measured light and first detector that arm supports, it is characterized in that: comprise in the measurement light path between the detector by above inclined to one side catoptron and one side or the mirror group of the no polarizing mirror formed of above compensatory reflex mirror simultaneously of rising of one side or one side at the measured light of distribution photometer; Measuring beam on a certain direction in the space that measured light sends is at first by the inclined to one side mirror reflects of the first, again incident first detector after all mirror reflects of other in the mirror group; It is the circular motion in the center of circle that the inclined to one side catoptron of the first is done with the measured light with respect to measured light; Simultaneously when measuring, the compensation plane of incidence that plays inclined to one side plane of incidence and compensatory reflex mirror that plays inclined to one side catoptron in the mirror group keeps vertical, and all play the s ripple of inclined to one side catoptron and the product of p wave reflection rate ratio keeps equating with the product of p wave reflection rate ratio with the s ripple of all compensatory reflex mirrors.
At least comprise the rotating mirror (being the inclined to one side catoptron of the first) that one side links to each other with first pedestal in the rotary mirror type distribution photometer, in the rotary mirror type distribution photometer of synchronous reflection distributing photometer and other type, may comprise two sides or more catoptron, if the polarization that each the face catoptron in the distribution photometer is brought can both be compensated or be offset, then the reception light light intensity of last detector is irrelevant or related less with the dependence of the polarization state of measured light, and the measuring error of being brought by polarization can reduce greatly.Depolarized reflector mirror group in the utility model provides a kind of like this compensation or has offset the method for the polarization problem that catoptron causes in the existing rotary mirror type distribution photometer, can be so that have nothing to do through catoptrical light intensity after the mirror group and polarization of incident light state, and the mirror group can not brought additional polarization to reflected light.
In the light path of distribution photometer of the present utility model, can single arrangement of mirrors group use also and can one group of above many arrangements of mirrors group use in the above-mentioned depolarized reflector.
Only to illustrate in the distribution photometer by a pair of situation of forming depolarized reflector mirror group by inclined to one side catoptron of one side and one side compensatory reflex mirror.On a certain direction, measured light is with light intensity I, incident angle θ
1The light of incidence polarizing catoptron can be decomposed into perpendicular to the p ripple that plays inclined to one side plane of incidence and be parallel to plane of incidence s ripple, and its light intensity is respectively Ip and Is, and measuring beam has passed through the intensity of reflected light I behind the inclined to one side catoptron
MqFor:
I
mq＝I
p·ρ
qp(θ
1)+I
s·ρ
qs(θ
1) (1)
Wherein, ρ
Qp(θ
1) be the p wave reflection rate of inclined to one side catoptron when incident angle is θ, ρ
Qs(θ
1) be the s wave reflection rate of inclined to one side catoptron when incident angle is θ.The ρ of Chu Xianing hereinafter
Qp(θ
1) and ρ
Qs(θ
1) with formula (1) in represented same meaning.
Because it is vertical mutually with the plane of incidence of compensatory reflex mirror to play the plane of incidence of inclined to one side catoptron, rise in the reflected light of inclined to one side catoptron to change into and be parallel to the p ripple that compensates plane of incidence perpendicular to the s ripple that plays inclined to one side plane of incidence, the p ripple that rises in the inclined to one side mirror reflects light changes into perpendicular to the s ripple that compensates plane of incidence, thereby, incident angle θ
2Intensity of reflected light I behind the incident compensatory reflex mirror
MbFor:
I
mb＝I
p·ρ
qp(θ
1)ρ
bs(θ
2)+I
s·ρ
qs(θ
1)ρ
bp(θ
2) (2)
In the formula, ρ
Bp(θ
2) be that the compensatory reflex mirror is θ in incident angle
2The time p wave reflection rate, ρ
Bs(θ
2) be that the compensatory reflex mirror is θ in incident angle
2The time s wave reflection rate.The ρ of Chu Xianing hereinafter
Bp(θ
2) and ρ
Bs(θ
2) with formula (2) in represented same meaning.
Because
Be ρ
Qp(θ
1) ρ
Bs(θ
2)=ρ
Qs(θ
1) ρ
Bp(θ
2)=C (3)
In the formula, C is a constant.
The intensity of reflected light of having passed through after the depolarized reflector group that inclined to one side catoptron and compensatory reflex mirror formed can be expressed as:
I
mb＝(I
p+I
s)·C (4)
The light intensity I of final incident detector
MbIrrelevant with the polarization of incident light state, and the mirror group brings additional polarization for final light yet.
If the inclined to one side catoptron in above-mentioned mirror group is identical with the optical property of compensatory reflex mirror, promptly under any one incident angle θ, all have:
ρ
qp(θ)＝ρ
bp(θ)＝ρ
p(θ)，ρ
qs(θ)＝ρ
bs(θ)＝ρ
s(θ) (5)
Then as long as guarantee that the angle of incidence of light of compensatory reflex mirror is identical with the angle of incidence of light that plays inclined to one side catoptron, the compensatory reflex mirror just can compensate or offset the polarization problem that inclined to one side catoptron brings, and does not need to calculate according to the reflectance curve that plays inclined to one side catoptron and compensatory reflex mirror the incident angle of compensatory reflex mirror.
If comprise two sides or more catoptron in original distribution, then for keeping the basic functions such as measuring distance of original distribution photometer, in the measurement light path of distribution photometer of the present utility model, can use a plurality of inclined to one side catoptrons in one or more surfaces compensatory reflex mirror and the distribution photometer to form depolarized reflector mirror group, compensate or offset a plurality of inclined to one side reflector polarization problems.When having a plurality of inclined to one side catoptrons and a plurality of compensatory reflex mirror in the mirror group, the inclined to one side catoptron in the mirror group can be provided with continuously, and the compensatory reflex mirror in the mirror group also is provided with continuously; Perhaps an inclined to one side catoptron and the compensatory reflex mirror in the mirror group is provided with at interval.
In measuring light path, some groups of depolarized reflector mirror groups can be set also.Can be provided with continuously between these mirror groups, the reflected light of the last catoptron in each mirror group becomes first incident light that plays inclined to one side catoptron in next mirror group; An inclined to one side catoptron and compensatory reflex mirror in a plurality of mirror groups also can be provided with in light path at interval, comprise inclined to one side catoptron and/or compensatory reflex mirror in other mirror group on an inclined to one side catoptron of composition mirror group and the light path between the compensatory reflex mirror.
The utility model can further be limited by the following technical programs:
Because the light distribution that will measure measured light on all directions, the rotation of the part or all of catoptron in the distribution photometer is inevitable, and in distribution photometer of the present utility model, should guarantee that also an every pair of inclined to one side catoptron and compensatory reflex mirror of forming depolarized reflector mirror group satisfies mirror group position relation all the time in measurement.Therefore be provided with main axis, first pedestal and second pedestal in the distribution photometer of the present utility model, the coaxial main axis rotation driving mechanism of one or more output shafts and main axis is arranged on the pedestal, the inclined to one side catoptron that rises in the described mirror group is connected with same main axis rotation driving mechanism with the compensatory reflex mirror, rotates around same axle; Perhaps the inclined to one side catoptron main axis rotation driving mechanism different with the compensatory reflex mirror that rise in the mirror group is connected, and these main axis rotation driving mechanisms can make an inclined to one side catoptron and the compensatory reflex mirror in the mirror group rotate synchronously; Perhaps any one in the mirror group plays the coaxial stationary shaft of inclined to one side catoptron or compensatory reflex mirror and main axis and is connected, and keeps static in measurement, and other play inclined to one side catoptron or the compensatory reflex mirror rotates around main axis.
Particularly, an inclined to one side catoptron and the compensatory reflex mirror in distribution photometer of the present utility model and the distribution photometer can be by following layout.
Measured light is positioned at the scheme on the main axis:
Measured light is connected on first pedestal by arm, main axis passes measured light, the first main axis rotation driving mechanism and first pivoted arm are set on first pedestal, first pivoted arm links to each other with the output shaft of the first main axis rotation driving mechanism, the inclined to one side catoptron of the first is installed in an end of first pivoted arm, on first pivoted arm that all inclined to one side catoptrons from measured light to the light path first detector and compensatory reflex mirror are arranged on first pedestal and/or on second pedestal.Below have two kinds of this measured lights of scheme arrangement to be in distribution photometer on the main axis:
The second main axis rotation driving mechanism and second pivoted arm are set on second pedestal, second pivoted arm links to each other with second pedestal by the second main axis rotation driving mechanism that second pivoted arm and first pivoted arm are rotated synchronously, the inclined to one side catoptron on second pedestal or/and the compensatory reflex mirror be installed on second pivoted arm.Because an inclined to one side catoptron and compensatory reflex mirror in the mirror group all are synchronized with the movement around main axis, they can keep the relation of above-mentioned mirror group in measurement.
If on the basis of the above, the first compensatory reflex mirror is installed on second pivoted arm, the inclined to one side catoptron of the first compensatory reflex mirror and the first is formed the mirror group of no polarizing mirror, promptly the plane of incidence of the plane of incidence of the first compensatory reflex mirror and the inclined to one side catoptron of the first is perpendicular, and the ratio of the s ripple of the first compensatory reflex mirror and p wave reflection rate equates with the ratio of the s ripple of the inclined to one side catoptron of the first and p wave reflection rate.Simultaneously first detector is installed also on second pivoted arm, and is made the inclined to one side catoptron of the first, the first compensatory reflex mirror and first position of detector make light on a certain direction of sending from measured light respectively continuously through normal incidence first detector after the inclined to one side catoptron of the first and the first compensatory reflex mirror reflection.
Also the stationary shaft coaxial with main axis can be set on second pedestal, second inclined to one side catoptron links to each other with stationary shaft, maintains static in measurement.In distribution photometer, except second inclined to one side catoptron, an inclined to one side catoptron and compensatory reflex mirror in all mirror groups all are installed on first pivoted arm, and first detector also is installed on first pivoted arm simultaneously.After the light of a certain direction of sending from measured light once passed through some compensatory reflex mirrors on the inclined to one side catoptron of the first, the second inclined to one side catoptron and first pivoted arm, normal incidence was to first detector that is positioned on first pivoted arm.
In measured light is in distribution photometer on the main axis, on first pivoted arm second optical receiver can be installed, the sampler of second optical receiver is in the face of measured light, and directly reception is from the light beam of measured light.Described second optical receiver can be a photometric detector, it can expand the measurement range of distribution photometer significantly, be used to measure the light distribution of some miniature light sources or light fixture, and can be with the light source of high precision measure various sizes or the total light flux of light fixture.Described second optical receiver also can be a brightness of image meter, be installed on first pivoted arm, sample tap directly can measured light or the Luminance Distribution of light fixture on all directions in the face of the brightness of image meter of measured light, and can realize the photometric measurement near field.It is the sampler of a spectral radiometer that described second optical receiver also can make, can measured light or spatial spectral radiation power and the color parameter etc. of light fixture on all directions by spectral radiometer.
Measured light is positioned at the scheme on first pivoted arm:
Inclined to one side catoptron of the first and measured light also can be in the following way in the setting on first pedestal: the first main axis rotation driving mechanism and first pivoted arm are set on first pedestal, first pivoted arm links to each other with the first main axis rotation driving mechanism, one end of first pivoted arm is by making an end that is connected arm with the drive unit of first pivoted arm reverse sync rotation, the other end of arm connects measured light, makes measured light remain same operating attitude in measurement.In this scheme, the inclined to one side catoptron of the first has two kinds of diverse location set-up modes again: the inclined to one side catoptron of the first links to each other with the first main axis rotation driving mechanism, and main axis is by the center of the inclined to one side catoptron of the first; The inclined to one side catoptron of the first links to each other with first pivoted arm, and the center of the inclined to one side catoptron of the first is not at main axis.
The second main axis rotation driving mechanism and second pivoted arm are set on second pedestal, second pivoted arm links to each other with second pedestal by the second main axis rotation driving mechanism that second pivoted arm and first pivoted arm are rotated synchronously, the inclined to one side catoptron on second pedestal or/and the compensatory reflex mirror be installed on second pivoted arm.Because an inclined to one side catoptron and compensatory reflex mirror in the mirror group all are synchronized with the movement around main axis, they can keep the relation of above-mentioned mirror group in measurement.
If on the basis of the above, the first compensatory reflex mirror is installed on second pivoted arm, the inclined to one side catoptron of the first compensatory reflex mirror and the first is formed the mirror group of no polarizing mirror, promptly the plane of incidence of the plane of incidence of the first compensatory reflex mirror and the inclined to one side catoptron of the first is perpendicular, and the ratio of the s ripple of the first compensatory reflex mirror and p wave reflection rate equates with the ratio of the s ripple of the inclined to one side catoptron of the first and p wave reflection rate.Simultaneously first detector is installed also on second pivoted arm, and is made the inclined to one side catoptron of the first, the first compensatory reflex mirror and first position of detector make light on a certain direction of sending from measured light respectively continuously through normal incidence first detector after the inclined to one side catoptron of the first and the first compensatory reflex mirror reflection.
In the distribution photometer of the present utility model, the light of a certain direction of sending from measured light arrives detector after through inclined to one side catoptron one or more groups depolarized reflector mirror group and compensatory reflex mirror, because the polarization that inclined to one side catoptron in the mirror group and compensatory reflex mirror cause compensates mutually and offsets, the reflected light light intensity of final incident detector also is irrelevant with the polarization of incident light state, and the mirror group in the light path can not brought additional polarization to reflected light.Inclined to one side catoptron is relative with the compensatory reflex mirror to be made in the measurement of distribution photometer synchronously around the rotation of horizontal spindle line by having made, and plays the position relation that inclined to one side catoptron and compensatory reflex mirror remain the mirror group.The utility model can make things convenient for, eliminate the polarization problem that direct reflection is brought effectively, reduces or eliminates the measuring error of being brought by the reflector polarization problem, has improved measuring accuracy.
[description of drawings]
Accompanying drawing 1 is the structural representation of center rotary reflection mirror distribution photometer;
Accompanying drawing 2 is structural representations of circular motion reflection mirror distribution photometer;
Accompanying drawing 3 is structural representations of centrifugal circular motion reflection mirror distribution photometer;
Accompanying drawing 4 is structural representations of fixation reflex mirror bimirror distribution photometer;
When being natural light generation direct reflection, accompanying drawing 5 produces the principle schematic of polarization;
Accompanying drawing 6 is p ripple and s wave reflection rate curves of typical metal;
Accompanying drawing 7 is synoptic diagram of an embodiment of the present utility model;
Accompanying drawing 8 is synoptic diagram of another embodiment of the present utility model;
Accompanying drawing 9 is synoptic diagram of the 3rd embodiment of the present utility model;
[embodiment]
Embodiment 1:
An embodiment synoptic diagram of distribution photometer of the present utility model as shown in Figure 7, comprise two pedestals 1,11 and horizontal spindle line 3, first pedestal 1 is provided with the first main axis rotation driving mechanism 7, the output shaft of the first main axis rotation driving mechanism 7 is coaxial with the horizontal spindle line 3 of distribution photometer, and output shaft links to each other with first pivoted arm 5 with an inclined to one side catoptron 2.Main axis 3 has passed the center of inclined to one side catoptron 2, and the first main axis rotation driving mechanism 7 has driven inclined to one side catoptron 2 and first pivoted arm 5 around main axis 3 rotations in measurement.Measured light 4 is clamped on the arm 8, one end of arm 8 links to each other by asessory shaft 13 synchronous drive mechanisms with an end of first pivoted arm 5, first pivoted arm 5 drives arm 8 around playing inclined to one side catoptron 2 rotations in measurement, and arm 8 rotates to keep the operating attitude of measured light 4 around asessory shaft 13 synchronous backwards simultaneously.Second pivoted arm 15 is set on second pedestal 11, second pivoted arm 15 links to each other with the second main axis rotation driving mechanism 17, can rotate synchronously around a main axis 3 and an inclined to one side catoptron 2, the balancing weight of compensatory reflex mirror 12 and detector 6 and balance second pivoted arm 15 is installed on second pivoted arm 15.The center of playing the center of inclined to one side catoptron 2 and compensatory reflex mirror 12 all be positioned on the main axis 3, detector 6 and balancing weight are positioned at the two ends of second pivoted arm.Compensatory reflex mirror 12 is identical with the optical property that plays inclined to one side catoptron 2,, is reflexed in the detector 6 by compensatory reflex mirror 12 after an inclined to one side catoptron 2 reflexes to compensatory reflex mirror 12 on second pedestal 11 from the light of measured light 4.In measurement, playing inclined to one side catoptron 2 and compensatory reflex mirror 12 rotates around main axis 3 under the drive of first pivoted arm 5 and second pivoted arm 15 respectively synchronously, and the plane of incidence of the plane of incidence of compensatory reflex mirror 12 and an inclined to one side catoptron 2 remains vertical, the angle of incidence of light θ of compensatory reflex mirror 12
2With the angle of incidence of light θ that plays inclined to one side catoptron 2
1Keep equating.The Z-axis rotary drive mechanism is installed between measured light 4 and the arm, but measured light 4 is around self Z-axis rotation, to switch different measurement planes.
Embodiment 2:
Second embodiment synoptic diagram of distribution photometer of the present utility model as shown in Figure 8 comprises two pedestals 1,11 and horizontal spindle line 3.First pedestal 1 is provided with that the output shaft of the first main axis rotation driving mechanism, 7, the first main axis rotation driving mechanisms 7 is coaxial with main axis 3, and first pivoted arm 5 is connected on first pedestal 1 by the first main axis rotation driving mechanism 7, can rotate around main axis 3.Play the inclined to one side catoptron 2 and second detector 16 and be installed in the two ends of pivoted arm.Measured light 4 links to each other with first pedestal 1 by arm 8, and is positioned on the main axis 3, and the Z-axis rotary drive mechanism is installed between measured light 4 and the arm, but measured light 4 is around self Z-axis rotation, to switch different measurement planes.The second main axis rotation driving mechanism, 17, the second pivoted arms 15 are set on second pedestal 11 link to each other with the second main axis rotation driving mechanism 17, can with rotate synchronously around the main axis 3 and first pivoted arm 5.The compensatory reflex mirror 12 and first detector 6 are installed, and compensatory reflex mirror 12 and first detector are positioned at the two ends of second pivoted arm 15 on second pivoted arm 15.Compensatory reflex mirror 12 is identical with the optical property that plays inclined to one side catoptron 2, in measurement, playing inclined to one side catoptron 2 and compensatory reflex mirror 12 rotates around main axis under the drive of first pivoted arm 5 and second pivoted arm 15 respectively, the plane of incidence of the plane of incidence of compensatory reflex mirror 12 and an inclined to one side catoptron 2 remains vertical, and the angle of incidence of light θ of compensatory reflex mirror 12
2With inclined to one side catoptron 2 an angle of incidence of light θ
1Keep equating.In measurement, play inclined to one side catoptron 2 and rotate around measured light, will reflex to the compensatory reflex mirror 12 of synchronous rotation from the light of a certain direction of measured light 4, and reflex to first detector 6 of synchronous rotation through compensatory reflex mirror 12 once more.Second detector 16 is photometric detectors that a spectral response curve and CIE human eye apparent efficiency function V (λ) are complementary, and the sensitive surface of second detector 16 can directly receive the light from measured light 4 over against measured light 4.Second detector 16 will play inclined to one side catoptron when working and the compensatory reflex mirror hides with black cloth.
Embodiment 3:
An embodiment synoptic diagram of distribution photometer of the present utility model as shown in Figure 9, comprise two pedestals 1,11 and horizontal spindle line 3, first pedestal 1 is provided with the first main axis rotation driving mechanism 7, the output shaft of the first main axis rotation driving mechanism 7 is coaxial with the horizontal spindle line 3 of distribution photometer, and output shaft links to each other with first pivoted arm 5, and the first main axis rotation driving mechanism 7 drives first pivoted arm 5 around main axis 3 rotations in measurement.Measured light 4 is clamped on the arm 8, one end of arm 8 links to each other by asessory shaft 13 synchronous drive mechanisms with an end of first pivoted arm 5, first pivoted arm 5 drives arm 8 around main axis 3 rotations in measurement, and arm 8 rotates to keep the operating attitude of measured light 4 around asessory shaft 13 synchronous backwards simultaneously.Play inclined to one side catoptron 2 and also be installed on first pivoted arm 5, be positioned at the other end of arm 8.Second pivoted arm, 15, the second pivoted arms 15 are set on second pedestal 11 link to each other, can rotate synchronously, compensatory reflex mirror 12 and detector 6 are installed on second pivoted arm 15 around a main axis 3 and an inclined to one side catoptron 2 with the second main axis rotation driving mechanism 17.Compensatory reflex mirror 12 and detector 6 are positioned at the two ends of second pivoted arm.Compensatory reflex mirror 12 is identical with the optical property that plays inclined to one side catoptron 2,, is reflexed in the detector 6 by compensatory reflex mirror 12 after an inclined to one side catoptron 2 reflexes to compensatory reflex mirror 12 on second pedestal 11 from the light of measured light 4.In measurement, playing inclined to one side catoptron 2 and compensatory reflex mirror 12 rotates around main axis 3 under the drive of first pivoted arm 5 and second pivoted arm 15 respectively synchronously, and the plane of incidence of the plane of incidence of compensatory reflex mirror 12 and an inclined to one side catoptron 2 remains vertical, the angle of incidence of light θ of compensatory reflex mirror 12
2With the angle of incidence of light θ that plays inclined to one side catoptron 2
1Keep equating.The Z-axis rotary drive mechanism is installed between measured light 4 and the arm, but measured light 4 is around self Z-axis rotation, to switch different measurement planes.
Claims (10)
1. distribution photometer, the measured light (4) that comprises arm (8), supports by arm (8), first detector (6), it is characterized in that: comprise by the above mirror group that plays the no polarizing mirror that inclined to one side catoptron and one side or the above compensatory reflex mirror of one side form of one side or one side, the measuring beam that sends from measured light (4) is at first reflected by the inclined to one side catoptron of the first (2) that with respect to measured light (4) work with measured light (4) is the circular motion in the center of circle, again incident first detector (6) after all mirror reflects of other in the mirror group; The compensation plane of incidence that plays inclined to one side plane of incidence and compensatory reflex mirror that plays inclined to one side catoptron in the mirror group keeps vertical, and all play the s ripple of inclined to one side catoptron and the product of p wave reflection rate ratio keeps equating with the product of p wave reflection rate ratio with the s ripple of all compensatory reflex mirrors.
2. distribution photometer according to claim 1 is characterized in that: the inclined to one side catoptron that rises in the described mirror group is provided with in light path continuously, and the compensatory reflex mirror in the mirror group also is provided with in light path continuously; Perhaps the mirror group is only formed with one side compensatory reflex mirror by simultaneously playing inclined to one side catoptron, and it is identical with the optical property of compensatory reflex mirror to play inclined to one side catoptron, and the angle of incidence of light of the angle of incidence of light of an inclined to one side catoptron and compensatory reflex mirror equates.
3. distribution photometer according to claim 1, it is characterized in that: the many groups of mirror groups of not having polarizing mirror more than one group are set in the light path between the detector at measured light, the reflected light of a last catoptron is the incident light of first catoptron in the next mirror group in the previous mirror group, perhaps the rising on the light path between inclined to one side catoptron and the compensatory reflex mirror of same mirror group, include and play inclined to one side catoptron or/and the compensatory reflex mirror in some other mirror groups.
4. according to claim 1 or 2 or 3 described distribution photometers, it is characterized in that: be provided with horizontal spindle line (3) in the distribution photometer, first pedestal (1) and second pedestal (11), the main axis rotation driving mechanism (7 that one or more output shafts are coaxial with main axis, 17) be arranged on pedestal (1,11) on, the inclined to one side catoptron that rises in the described mirror group links to each other with same main axis rotation driving mechanism (7) with the compensatory reflex mirror, perhaps playing inclined to one side catoptron and compensatory reflex mirror and having made the synchronous different main axis rotation driving mechanism (7 that rotates of inclined to one side catoptron and compensatory reflex mirror in the mirror group, 17) link to each other, perhaps the coaxial stationary shaft of inclined to one side catoptron or compensatory reflex mirror and main axis (3) that rises arbitrarily in the mirror group is connected.
5. distribution photometer according to claim 4, it is characterized in that: described arm (8) links to each other with first pedestal (1), measured light (4) is positioned on the main axis (3), the first main axis rotation driving mechanism (7) and first pivoted arm (5) are set on first pedestal (1), first pivoted arm (5) links to each other with the output shaft of the first main axis rotation driving mechanism (7), the inclined to one side catoptron of the first (2) is installed in an end of first pivoted arm (5), and all inclined to one side catoptrons and compensatory reflex mirror from measured light to the light path first detector are arranged on first pedestal (1) and/or second pedestal (11).
6. distribution photometer according to claim 4, it is characterized in that: the first main axis rotation driving mechanism (7) and first pivoted arm (5) are set on first pedestal (1), first pivoted arm (5) links to each other with the output shaft of the first main axis rotation driving mechanism (7), one end of described arm (8) is connected first pivoted arm (5) by making arm (8) with the drive unit of first pivoted arm (5) reverse sync rotation, and the other end of arm (8) connects measured light (4); The inclined to one side catoptron of the first (2) links to each other with the output shaft of the first main axis rotation driving mechanism (7), and being centered close on the main axis (3) of the inclined to one side catoptron of the first (2), perhaps the inclined to one side catoptron of the first (2) is installed on first pivoted arm (5), and the center of the inclined to one side catoptron of the first (2) is not on main axis; All inclined to one side catoptrons from measured light to the light path first detector and compensatory reflex mirror are arranged on first pedestal (1) and/or second pedestal (11).
7. according to claim 5 or 6 described distribution photometers, it is characterized in that: the second main axis rotation driving mechanism (17) and second pivoted arm (15) are set on second pedestal (11), second pivoted arm (15) links to each other with second pedestal (11) by the second main axis rotation driving mechanism (17) that second pivoted arm and first pivoted arm are rotated synchronously, the inclined to one side catoptron on second pedestal (11) or/and compensatory reflex mirror (12) be installed on second pivoted arm (15).
8. according to claim 5 or 6 described distribution photometers, it is characterized in that: go up at second pivoted arm (15) the first compensatory reflex mirror (12) and first detector (6) are installed, the first compensatory reflex mirror (12) and the first reflect the mirror group that (2) mirror is formed no polarizing mirror partially, and the position relation of the inclined to one side catoptron of the first (2), the first compensatory reflex mirror (12) and first detector (6) makes continuous respectively process inclined to one side catoptron of the first (2) of light and the first compensatory reflex mirror (12) reflection back normal incidence first detector (6) that sends from measured light (4).
9. distribution photometer according to claim 5 is characterized in that: go up setting and the coaxial stationary shaft of main axis (3) at second pedestal (11), second inclined to one side catoptron (12) links to each other with stationary shaft, and first detector (6) is installed on first pivoted arm (5).
10. distribution photometer according to claim 5 is characterized in that going up installation second optical receiver (16) at first pivoted arm (5), and the sensitive surface of second optical receiver (16) is in the face of measured light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201629684U CN201247143Y (en) | 2008-08-20 | 2008-08-20 | Distribution photometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201629684U CN201247143Y (en) | 2008-08-20 | 2008-08-20 | Distribution photometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247143Y true CN201247143Y (en) | 2009-05-27 |
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ID=40730964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201629684U Expired - Lifetime CN201247143Y (en) | 2008-08-20 | 2008-08-20 | Distribution photometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247143Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655410B (en) * | 2008-08-20 | 2011-07-20 | 杭州远方光电信息股份有限公司 | Distribution photometer |
| CN107209056A (en) * | 2015-01-22 | 2017-09-26 | Lmt光学测量技术（柏林）有限责任公司 | For measuring at least one lighting engineering in optical radiation source or the method and gonioradiometer of actinometry characteristic quantity depending on direction |
-
2008
- 2008-08-20 CN CNU2008201629684U patent/CN201247143Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655410B (en) * | 2008-08-20 | 2011-07-20 | 杭州远方光电信息股份有限公司 | Distribution photometer |
| CN107209056A (en) * | 2015-01-22 | 2017-09-26 | Lmt光学测量技术（柏林）有限责任公司 | For measuring at least one lighting engineering in optical radiation source or the method and gonioradiometer of actinometry characteristic quantity depending on direction |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU EVERFINE OPTOELECTRONIC INFORMATION CO., Free format text: FORMER NAME: HANGZHOU EVERFINE PHOTO-E-INFO CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 310053 Binjiang District, Zhejiang Province, Hangzhou Road, No. 669 Patentee after: Hangzhou Everfine Photo-E-Info Co., Ltd. Address before: 310053 Binjiang District, Zhejiang Province, Hangzhou Road, No. 669 Patentee before: Hangzhou Everfine Photo-E-Info Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20090527 Effective date of abandoning: 20080820 |