CN206710768U - A kind of spectroscope for slr camera - Google Patents
A kind of spectroscope for slr camera Download PDFInfo
- Publication number
- CN206710768U CN206710768U CN201720425078.7U CN201720425078U CN206710768U CN 206710768 U CN206710768 U CN 206710768U CN 201720425078 U CN201720425078 U CN 201720425078U CN 206710768 U CN206710768 U CN 206710768U
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- China
- Prior art keywords
- film
- spectroscope
- spectro
- slr camera
- antireflective coating
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- 239000000463 material Substances 0.000 claims abstract description 26
- 239000006117 anti-reflective coating Substances 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 14
- 238000007747 plating Methods 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- 230000003667 anti-reflective effect Effects 0.000 claims description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 238000007650 screen-printing Methods 0.000 claims description 3
- 229910009815 Ti3O5 Inorganic materials 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000010408 film Substances 0.000 description 37
- 238000005259 measurement Methods 0.000 description 8
- 239000007888 film coating Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000985 reflectance spectrum Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Laminated Bodies (AREA)
Abstract
A kind of spectroscope for slr camera is the utility model is related to, solves the problems, such as that be divided minute surface precision controlling requires high to spectro-film and being coated with for antireflective coating.The present apparatus includes substrate of glass, the side plating of substrate of glass sets antireflective coating provided with spectro-film, another side plating, it is characterized in that, the outside of antireflective coating is provided with the photomask of frame shape, shading film location forms black lightproof area, effective light splitting region is formed among the photomask of frame shape, antireflective coating and spectro-film are to be alternately stacked by high-index material and low-index material into multi-layer film structure.The utility model spectrophotometric spectra is stable, and face precision is good, and cost is cheap, simple for production, is easy to scale volume production.
Description
Technical field
The utility model belongs to optical imaging field, is related to a kind of optical mirror slip, is used for more particularly to one kind single anti-phase
The spectroscope of machine.
Background technology
Spectroscope is the core component of slr camera camera lens, from image-forming principle it is recognised that light is through camera lens arrival point
After light microscopic, reflex to focusing screen above and form image, through ocular lens and pentaprism, we can see in picture window
The scenery of outside.When pressing shutter, reflective mirror is lifted, and image is shot on CCD, consistent with being seen on screen of finding a view.
The advantages of slr camera is compared with paraxonic camera is What You See Is What You Get, the imaging angle in view finder and the angle of final slice
It is the same.The rear focus of slr camera camera lens will can simultaneously in the focal plane position of the position of reflector and photo-sensitive cell simultaneously
Imaging, this spectroscopical spectrum stability and angle interdependence influence image quality.
Spectroscope and optical axis placement typically at 45 °, therefore spectroscopical face precision is also one of important indicator.Reflecting surface essence
Degree control is spectroscope general indicator within 10.While ensureing that the curve of spectrum is stable, light splitting mirror surface accuracy weight is controlled
It is exactly being coated with for spectro-film and antireflective coating to want key.
The content of the invention
The purpose of this utility model is to be coated with requirement to spectro-film and antireflective coating for light splitting minute surface precision controlling
The problem of high, there is provided a kind of spectrophotometric spectra curve is stable and angle interdependence and the small light splitting for slr camera of face precision
Mirror.
Technical scheme is used by the utility model solves its technical problem：A kind of spectroscope for slr camera,
Including substrate of glass, the side plating of substrate of glass sets antireflective coating provided with spectro-film, another side plating, it is characterised in that
The outside of antireflective coating is provided with the photomask of frame shape, and shading film location forms black lightproof area, the photomask centre shape of frame shape
Into effective light splitting region, antireflective coating and spectro-film are to be alternately stacked by high-index material and low-index material into more
Film structure.Spectro-film in present apparatus spectroscope belongs to neutral spectro-film, the scope of application in visible region 380-780nm,
45 ° of incidences.The sensitive infrared band of receiver is filtered by the cutoff filter in imaging lens.Antireflective in spectroscope
Film belongs to wide band antireflective, and the scope of application is in 400-800nm, 45 ° of incidences.Antireflective coating primarily serves two effects herein：
When reduce due to reflection reason caused by be imaged ghost, second, the spectroscopical face precision of adjustment, by the film for adjusting two sides
Thickness degree balances stress in thin film.Spectro-film and antireflective coating in the utility model spectroscope use electron gun evaporation, ion
The film plating process of source auxiliary is realized.Ion gun assisted deposition, coating growth is fine and close, and the curve of spectrum is stable without drift, and stress is without change
Change.
Preferably, the first tunic that antireflective coating and spectro-film contact with substrate is all high-index material or is all
Low-index material.
Preferably, the outermost layer of antireflective coating and spectro-film is low-index material.
Preferably, the substrate of glass is optical clear glass, thickness 0.55-1.11mm.
Preferably, the antireflective coating number of plies 12-16 layers, 0.5-1.0 μm of gross thickness.
Preferably, the spectro-film number of plies 10-14 layers, 0.5-1.5 μm of gross thickness.
Preferably, the high-index material is Ti3O5、TiO2、Ta3O5、ZrO2、Nb2O5In one kind.
Preferably, the low-index material is SiO2。
Preferably, the photomask is realized by ink silk screen printing, ink thickness is at 10-100 μm.
Preferably, the spectroscopical each seamed edge of photomask periphery all standing.
The utility model spectrophotometric spectra is stable, and face precision is good, and cost is cheap, simple for production, is easy to scale volume production.
Brief description of the drawings
Fig. 1 is a kind of layer structure schematic diagram of the utility model.
Fig. 2 is the utility model black lightproof area and effective light splitting region schematic diagram.
Fig. 3 is the utility model spectroscope spectro-film results of spectral measurements table.
Fig. 4 is the utility model actual measurement spectro-film reflectance spectrum curve.
Fig. 5 is the utility model actual measurement antireflective film reflectance spectrum curve.
Fig. 6 is the utility model actual measurement spectro-film reflector precision.
In figure：1st, substrate of glass, 2, spectro-film, 3, antireflective coating, 4, photomask, 5, black lightproof area, 6, effectively point
Light region.
Embodiment
The utility model is further illustrated below by specific embodiment and with reference to accompanying drawing.
Embodiment：A kind of spectroscope for slr camera, as shown in Figure 1, 2.The present apparatus includes substrate of glass 1, glass
The side plating of substrate sets antireflective coating 3 provided with spectro-film 2, another side plating, and the outside of antireflective coating is provided with the screening of frame shape
Light film 4, shading film location form black lightproof area 5, effective light splitting region 6, antireflective coating are formed among the photomask of frame shape
It is to be alternately stacked by high-index material and low-index material into multi-layer film structure with spectro-film.Spectro-film and antireflective film
In high-index material and low-index material be all titanium oxide and silica respectively.
Spectroscopical material of substrate of glass 1 is B270i, thickness 0.8mm.12 layers of the spectroscope spectro-film number of plies, film layer is total
Thickness 937.2nm, the first layer material contacted with substrate are titanium oxide.14 layers of the spectroscope antireflective film number of plies, film layer gross thickness
640.3nm, the first layer material contacted with substrate are titanium oxide.The outermost layer of antireflective coating and spectro-film is silica.Hide
The method that light film uses ink silk screen printing, ink types empire GLS-HF, ink thickness is at 10-100 μm.
Spectro-film and antireflective coating in spectroscope use electron gun evaporation, and the film plating process of ion gun auxiliary is realized.
High-index material and low-index material coating process electron gun evaporation speed difference 0.4nm/s, 1.2nm/s, ion gun is auxiliary
It is respectively 1300V, 1100V to help energy.
Fig. 3 is the actual measurement spectroscope spectro-film spectrum property table of the present embodiment, and the numerical value of grey background color is measured value.This reality
The spectroscope light splitting film properties for applying example meet the requirements.
As shown in figure 4, use the measurement point of the ultraviolet-visible near infrared spectrometers of PerkinElmer LAMBDA 1050
45 ° and 39 ° reflectivity of light film, as shown in Figure 4.Wherein in visible region（410-700nm）, angle variable quantity 1.80, completely
The small requirement of sufficient angle interdependence, while all meet the requirement of spectro-film spectral characteristic in whole region.
As shown in figure 5, subtracted using the ultraviolet-visible near infrared spectrometer measurements of PerkinElmer LAMBDA 1050
Anti- 45 ° of reflectivity of film, as a result in visible region（400-700nm）, average reflectance is 0.78%, and maximum reflectivity is in 400nm
Locate as 1.3%, meet the characteristic requirements of antireflective.
As shown in fig. 6, using OLYPUS FS20001 laser interferometer measurement spectro-film reflector precisions, as a result PV values are
1.8λ（It is required that less than 10）, face type is projection, meets the characteristic requirements of face precision.
The utility model spectrophotometric spectra is stable, and face precision is good, and cost is cheap, simple for production, is easy to scale volume production.
Claims (10)
1. a kind of spectroscope for slr camera, including substrate of glass, a side of substrate of glass is plated provided with spectro-film, separately
One side plating sets antireflective coating, it is characterised in that the outside of antireflective coating is provided with the photomask of frame shape, and shading film location forms black
Color lightproof area, the photomask centre of frame shape form effective light splitting region, and antireflective coating and spectro-film are by high index of refraction material
Material and low-index material are alternately stacked into multi-layer film structure.
A kind of 2. spectroscope for slr camera according to claim 1, it is characterised in that：Antireflective coating and spectro-film
The first tunic contacted with substrate is all high-index material or is all low-index material.
A kind of 3. spectroscope for slr camera according to claim 1, it is characterised in that：Antireflective coating and spectro-film
Outermost layer be low-index material.
4. according to a kind of spectroscope for slr camera described in claim 1 or 2 or 3, it is characterised in that：The glass base
Bottom is optical clear glass, thickness 0.55-1.11mm.
5. according to a kind of spectroscope for slr camera described in claim 1 or 2 or 3, it is characterised in that：The antireflective
Film layer number 12-16 layers, 0.5-1.0 μm of gross thickness.
6. according to a kind of spectroscope for slr camera described in claim 1 or 2 or 3, it is characterised in that：The spectro-film
Number of plies 10-14 layers, 0.5-1.5 μm of gross thickness.
7. according to a kind of spectroscope for slr camera described in claim 1 or 2 or 3, it is characterised in that：The high refraction
Rate material is Ti3O5、TiO2、Ta3O5、ZrO2、Nb2O5In one kind.
8. according to a kind of spectroscope for slr camera described in claim 1 or 2 or 3, it is characterised in that：The low refraction
Rate material is SiO2。
9. according to a kind of spectroscope for slr camera described in claim 1 or 2 or 3, it is characterised in that：The photomask
It is to be realized by ink silk screen printing, ink thickness is at 10-100 μm.
10. according to a kind of spectroscope for slr camera described in claim 1 or 2 or 3, it is characterised in that：The shading
The spectroscopical each seamed edge of film periphery all standing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720425078.7U CN206710768U (en) | 2017-04-21 | 2017-04-21 | A kind of spectroscope for slr camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720425078.7U CN206710768U (en) | 2017-04-21 | 2017-04-21 | A kind of spectroscope for slr camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206710768U true CN206710768U (en) | 2017-12-05 |
Family
ID=60455699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720425078.7U Active CN206710768U (en) | 2017-04-21 | 2017-04-21 | A kind of spectroscope for slr camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206710768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230311A (en) * | 2020-11-09 | 2021-01-15 | 广东誉品实业有限公司 | Anti-dazzle light-shading sheet |
-
2017
- 2017-04-21 CN CN201720425078.7U patent/CN206710768U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112230311A (en) * | 2020-11-09 | 2021-01-15 | 广东誉品实业有限公司 | Anti-dazzle light-shading sheet |
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