CN1046984A - The beam-splitting optical system of nitometer/colorimeter - Google Patents
The beam-splitting optical system of nitometer/colorimeter Download PDFInfo
- Publication number
- CN1046984A CN1046984A CN 90102289 CN90102289A CN1046984A CN 1046984 A CN1046984 A CN 1046984A CN 90102289 CN90102289 CN 90102289 CN 90102289 A CN90102289 A CN 90102289A CN 1046984 A CN1046984 A CN 1046984A
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- CN
- China
- Prior art keywords
- optical splitter
- visual field
- field regulator
- principal goods
- goods mirror
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003287 optical effect Effects 0.000 title claims abstract description 47
- 230000000007 visual effect Effects 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 13
- 238000003384 imaging method Methods 0.000 claims abstract description 3
- 210000001747 pupil Anatomy 0.000 claims abstract description 3
- 239000007769 metal material Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000012800 visualization Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- Spectrometry And Color Measurement (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
A kind of beam-splitting optical system of nitometer/colorimeter, it is characterized in that optical splitter 2 is made up of beam split reflecting prism 21, parallel glass dull and stereotyped 22 and visual field regulator 23, beam split reflecting prism 21 is one with dull and stereotyped 22 gummeds of parallel glass, be arranged near principal goods mirror 1 emergent pupil, the visual field regulator 23 that has manhole is arranged on the imaging surface of principal goods mirror 1.
The optical splitter 2 of this beam-splitting optical system is rational in infrastructure, and the process-cycle is short, and cost is 10% of existing optical splitter.
Description
The present invention relates to a kind of luminosity, determination of colority method and optics or mechanical part.
Photometry color measurement instruments such as existing nitometer, color luminance meter, its beam-splitting optical system turnkey is drawn together the principal goods mirror, optical splitter, photochromism detector, catoptron and eyepiece.Tested light beam by the principal goods mirror is divided into two parts by optical splitter, and some is received by the photochromism detector by optical splitter, and another supplies visualization by eyepiece partly by the reflector surface reflection after mirror reflects.Constitute the beam-splitting optical system that radiation measurement channels and visualization passage are separated with this.Wherein optical splitter is an element that plays transmission and reflection double action, and its reflecting surface and principal goods mirror angle of optical axis are 45 ° or 60 °.
Optical splitter is that the disk made with quality steel plate is according to the requirement of apparatus measures visual field, on its Zhou Jing, have the different ellipse hole of several bores, after the installation, rotating optical splitter lays respectively on the optical axis the different ellipse hole of bore, when doing luminosity, colour measurement, select the through hole of suitable bore for use.
The defective of prior art scheme is: optical splitter adopts quality steel plate to make, and is printing opacity, will open several ellipse holes on the steel plate, and these through hole bores are very little, and bore has nothing in common with each other; Simultaneously, spectrophotometric reflection face required grinding becomes minute surface.Cause the process-cycle long, rejection rate height, cost height.
Task of the present invention is to provide a kind of beam-splitting optical system of nitometer/colorimeter, and its optical splitter adopts optical glass and ordinary metallic material to make, and rational in infrastructure, easy to process, cost reduces significantly.
Description of drawings:
Fig. 1 is the structural representation of the beam-splitting optical system of existing nitometer/colorimeter, mark among the figure:
1-principal goods mirror
The 2-optical splitter
3-photochromism detector
The 4-catoptron
The 5-eyepiece
Fig. 2 is the structural representation of beam-splitting optical system of nitometer/colorimeter of the design.21-beam split reflecting prism among the figure, 22-parallel glass flat board, 23-visual field regulator, all the other marks are identical with Fig. 1.
Fig. 3 is the stereographic map of beam split reflecting prism 21.
Fig. 4 is the planimetric map of visual field regulator.
Below in conjunction with description of drawings, describe the design's particular content in detail.
As shown in the figure, the beam-splitting optical system of nitometer/colorimeter of the present invention comprises principal goods mirror 1, the optical splitter 2, photochromism detector 3, catoptron 4 and the eyepiece 5 that are made of beam split reflecting prism 21, parallel glass dull and stereotyped 22 and visual field regulator 23.Form the optical radiation measurement passage by principal goods mirror 1, optical splitter 2 and photochromism detector 3; Form the visualization passage by principal goods mirror 1, optical splitter 2, catoptron 4 and eyepiece 5.The tested light beam of principal goods mirror 1 outgoing, exhausted major part enters photochromism detector 3 along radiation measurement channels, is received by photochromism detector 3; The tested light beam of sub-fraction supplies visualization by eyepiece 5 by optical splitter 2 reflections after catoptron 4 reflections.It is characterized in that: optical splitter 2 is made up of beam split reflecting prism 21, parallel glass dull and stereotyped 22 and visual field regulator 23; Beam split reflecting prism 21 and parallel glass flat board 22 compose one, place near the emergent pupil of principal goods mirror 1, and the reflecting surface of beam split reflecting prism 21 and the angle between the optical axis are 45 ° or 60 °; Visual field regulator 23 is the rotating disks that have the through hole of several different-diameters on the same Zhou Jing, makes with ordinary metallic material, places on the imaging surface of principal goods mirror 1, by frame support, its central shaft is parallel with optical axis, rotates visual field regulator 23, and the through hole on it must lay respectively on the optical axis.
The structure of beam split reflecting prism 21, visual field regulator 23 is shown in Fig. 3, Fig. 4 respectively.
With prior art relatively, this programme has following advantage:
1, the visual field regulator made from ordinary metallic material 23, its through hole is circular, the small circular hole of these different-diameters is easy to process, as with laser boring etc.And the through hole ovalize on the existing optical splitter, the processing technology complexity, the excessive little little elliptical aperture of rejection rate height, especially bore then can't be processed.
2, the beam split reflecting prism 21 that becomes with the optics glass, reflecting surface is easy to process; And existing steel optical splitter becomes minute surface with its surface grinding, and the process-cycle is long, and difficult quality guarantee.
3, the optical splitter 2 that adopts of the design since the process-cycle short, the yield rate height, its manufacturing cost has only 10% of existing optical splitter.
A kind of little area color luminance meter, adopt beam-splitting optical system as shown in Figure 2, this system comprises principal goods mirror 1, the optical splitter 2 that is made of beam split reflecting prism 21, parallel glass dull and stereotyped 22 and visual field regulator 23, photochromism detector 3, catoptron 4 and eyepiece 5.The focal distance f of principal goods mirror 1 '=60mm.
Beam split reflecting prism 21 diameters are φ 6mm, and its reflecting surface and angle of optical axis are 45 °.
Dull and stereotyped 22 diameters of parallel glass are φ 30mm, and thickness is 2mm.
Measure field angle: 1 °, 0.25 °, 0.1 °
Through-hole diameter on the visual field regulator 23: φ 1.0mm, φ 0.26m, φ 0.1mm.
Portable nitometer adopts beam-splitting optical system shown in Figure 2, principal goods mirror 1 focal distance f '=80mm, measuring field angle is 3 ° and 0.3 °.
Beam split reflecting prism 21 diameters are φ 8mm, and its reflecting surface and angle of optical axis are 45 °.
Dull and stereotyped 22 diameters of parallel glass are φ 30mm, and thickness is 2mm.
The spectroradio color luminance meter adopts beam-splitting optical system shown in Figure 2, principal goods mirror 1 focal distance f '=120mm, measure field angle and be respectively: 2 °, 1 °, 0.2 °, 0.1 °, 2 '.
Beam split reflecting prism 21 diameters are φ 8mm, and its reflecting surface and angle of optical axis are 45 °.
Dull and stereotyped 22 diameters of parallel glass are φ 40mm, and thickness is 2mm.
The through-hole diameter of visual field regulator 23 is respectively: φ 6.28mm, φ 3.14mm, φ 0.63mm, φ 0.31mm, φ 0.1mm.
Claims (1)
1, a kind of beam-splitting optical system of nitometer/colorimeter comprises the principal goods mirror, optical splitter, and the photochromism detector, catoptron and eyepiece is characterized in that:
-optical splitter 2 is made up of beam split reflecting prism 21, parallel glass dull and stereotyped 22 and visual field regulator 23;
The beam split reflecting prism 21 and the parallel glass flat board 22 of-optical splitter 2 compose one, place near principal goods mirror 1 emergent pupil;
The visual field regulator 23 of-optical splitter 2 is the rotating disks that have the through hole of several different-diameters on the same Zhou Jing, makes with the ordinary metallic material plate, places on the imaging surface of principal goods mirror 1;
The visual field regulator 23 of-optical splitter 2 is by frame support, and its central shaft is parallel with optical axis, rotates visual field regulator 23, and the through hole on it must lay respectively on the optical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102289 CN1015572B (en) | 1990-04-18 | 1990-04-18 | Beam splitter system of brightness meter/colorimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102289 CN1015572B (en) | 1990-04-18 | 1990-04-18 | Beam splitter system of brightness meter/colorimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1046984A true CN1046984A (en) | 1990-11-14 |
| CN1015572B CN1015572B (en) | 1992-02-19 |
Family
ID=4877449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90102289 Expired CN1015572B (en) | 1990-04-18 | 1990-04-18 | Beam splitter system of brightness meter/colorimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015572B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446442C (en) * | 2005-05-23 | 2008-12-24 | 电子科技大学 | Laser receiving and echo device |
| CN101620006B (en) * | 2009-07-30 | 2012-01-04 | 浙江大学 | Novel color brightness meter optical system |
-
1990
- 1990-04-18 CN CN 90102289 patent/CN1015572B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446442C (en) * | 2005-05-23 | 2008-12-24 | 电子科技大学 | Laser receiving and echo device |
| CN101620006B (en) * | 2009-07-30 | 2012-01-04 | 浙江大学 | Novel color brightness meter optical system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1015572B (en) | 1992-02-19 |
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| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |