CN101660717B - Wide-angle color temperature-adjusting cold reflector for shadowless lamp - Google Patents
Wide-angle color temperature-adjusting cold reflector for shadowless lamp Download PDFInfo
- Publication number
- CN101660717B CN101660717B CN2008100129252A CN200810012925A CN101660717B CN 101660717 B CN101660717 B CN 101660717B CN 2008100129252 A CN2008100129252 A CN 2008100129252A CN 200810012925 A CN200810012925 A CN 200810012925A CN 101660717 B CN101660717 B CN 101660717B
- Authority
- CN
- China
- Prior art keywords
- rete
- film
- shadowless lamp
- color temperature
- wide
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Optical Filters (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention belongs to the field of lighting equipment in medical appliances, and in particular relates to a wide-angle color temperature-adjusting cold reflector for a shadowless lamp, which comprises a substrate material (9) on which a film (10) is arranged; the film (10) is formed by stacking materials with high and low refractive indexes alternately, and the film structure is (HL)<12>H, wherein H is a film with a material with a high refractive index, and L is a film with a material with a low refractive index; the refractive index n of the substrate material (9) is equal to 1.52; and the film material of the H film is TiO2, and the film material of the L film is SiO2. The cold reflector has simple structure, low cost, high illuminance, and small change of color temperature of emergent light, and has good performance of color rendering and high illuminance through corresponding film system design.
Description
Technical field
The invention belongs to lighting apparatus field in the medicine equipment, relate in particular to a kind of wide-angle color temperature-adjusting cold reflector for shadowless lamp.
Background technology
Shadowless lamp is a kind of important lighting apparatus in the medicine equipment.In operation, the spectrum of this special light sources will have the characteristics that colour temperature is suitable, light quality is good, the emergent light temperature is low.The requirement of shadowless lamp aspect colour temperature: the colour temperature 4300K of emergent light ± 150K.General use is the 3000K halogen light source in the shadowless lamp system.And need the light of higher colour temperature in the operation, need carry out the colour temperature adjustment.Typical traditional colour temperature trimmer spectrogram as shown in Figure 3.This colour temperature trimmer generally is that one side is coated with infrared cut coating, and another side is coated with colour temperature and adjusts film.After the cold reflector cooperation, color temperature value is between 4100-4200K.The relative spectral power that this variation finally makes emergent light approach black matrix distributes as Fig. 4.The low temperature rise of shadowless lamp requires: if the temperature of shadowless lamp emergent light is very high, will directly influences doctor and operative site tissue temperature and cause dehydration, influence operation quality.Therefore, the temperature rise of shadowless lamp will be controlled in 2 ℃.In order to reduce temperature rise, mainly eliminate the influence of infrared light by cold reflector and cutoff filter.Be illustrated in figure 5 as the curve of spectrum of typical cold reflector, cutoff filter is general adopt be heat absorbing glass or be coated with infrared cut coating such as Fig. 6.
Shadowless lamp to have good colour rendering, could clearly differentiate shades of colours such as blood vessel, tissue like this.The average colour rendering index of system will reach more than 90, and table 1 is the colour rendering index calculated value of emergent light among Fig. 4.
Table 1
Human eye feels that to light photopic vision and scotopic difference are arranged, as shown in Figure 7.Under different brightness conditions, the wavelength of diverse location is to the difference that influences of human eye vision function.Therefore, the reflectance spectrum design will take into full account the wavelength location the most responsive to human eye, realizes the needs of high illumination.
What domestic and international typical shadowless lamp equipment optical system generally adopted at present is the structure that halogen light source cooperates cold reflector and colour temperature trimmer, as shown in Figure 1.This structure need be coated with the cold emission film at the inner surface of speculum, also will be coated with infrared cut coating and colour temperature simultaneously and adjust film on flat glass.11 is speculum, and 12 are the cold emission film, and 13 is flat glass, and 14 is infrared by film and colour temperature adjustment film, and 15 is halogen light source.It is higher that above-mentioned shadowless lamp exists whole cost, complex structure, and illumination is low, and the emergent light colour temperature changes the characteristics that wait greatly.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art part and provides a kind of simple in structure, and cost is low, the illumination height, and the emergent light colour temperature changes little wide-angle color temperature-adjusting cold reflector for shadowless lamp.
For achieving the above object, the present invention is achieved in that wide-angle color temperature-adjusting cold reflector for shadowless lamp, comprises base material; On described base material, be provided with rete; Described rete is alternately piled up by the high and low refractive index material and forms, and its film layer structure is (HL)
12H, wherein H is the high-index material rete, L is the low-index material rete; The refractive index n of described base material=1.52.
As a kind of preferred version, H rete coating materials of the present invention is TiO
2, L rete coating materials is SiO
2
As another kind of preferred version, the thicknesses of layers of rete of the present invention is:
The 1st rete H 20～30nm
The 2nd rete L 60～70nm
The 3rd rete H 48～52nm
The 4th rete L 40～70nm
The 5th rete H 50～55nm
The 6th rete L 50～55nm
The 7th rete H 50～55nm
The 8th rete L 65～70nm
The 9th rete H 38～80nm
The 10th rete L 65～75nm
The 11st rete H 48～55nm
The 12nd rete L 85～99nm
The 13rd rete H 45～55nm
The 14th rete L 75～85nm
The 15th rete H 45～55nm
The 16th rete L 90～96nm
The 17th rete H 45～55nm
The 18th rete L 90～96nm
The 19th rete H 40～45nm
The 20th rete L 70～75nm
The 21st rete H 60～66nm
The 22nd rete L 90～95nm
The 23rd rete H 70～76nm
The 24th rete L 135～150nm
The 25th rete H 25～145nm.
In addition, the 4th rete L of the present invention can be 60～70nm; Described the 9th thicknesses of layers H can be 70～80nm, and described the 25th thicknesses of layers H can be 130～145nm.
The present invention is simple in structure, and it is adjusted film with cold light reflectance coating and colour temperature and is varied to a kind of film system and directly is coated on the reflective mirror, greatly reduces the cost and the complexity of shadowless lamp, has simplified the structure of shadowless lamp.By corresponding film is design, and the present invention has good colour rendering and high illumination, and the result of its curve of spectrum as shown in Figure 8.Under different angle of incidence of light degree, though spectrum of reflected light curve of the present invention changes, the colour temperature and the colour rendering index that are calculated in conjunction with the 3000K light source change very little.Film cording of the present invention has following characteristics:
1, the wide angle stable color temperature is adjusted and good colour rendering: in this film was, angle changed from 10deg to 50deg, and the colour temperature of emergent light changes little.Colour rendering index is not less than 90.The colour temperature and the colour rendering index of the same film of different light rays incident angle system see Table 2
Table 2
2, less temperature rise: in the process of film system design,, see Figure 10, drop to the reflectivity of infrared spectrum wave band minimum in conjunction with the relative spectral power distribution map of halogen light source.
3, high illumination: because reflective mirror of the present invention does not have colour temperature as shown in Figure 1 to adjust film and infrared cut coating, visible light can directly pass through mirror reflects, and the reflection efficiency of speculum is very high; In the design process of film system, select to influence the wavelength location of illuminance sensitivity according to the visibility function of human eye, the illumination of emergent light is greatly improved.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.Protection scope of the present invention will not only be confined to the statement of following content.
Fig. 1 is the typical structure schematic diagram of traditional shadowless lamp light source;
Fig. 2 is the structural representation of shadowless lamp optical system of the present invention;
Fig. 3 is traditional colour temperature trimmer spectrogram;
Fig. 4 is that the relative spectral power of shadowless lamp light and black matrix distributes relatively;
Fig. 5 is the reflectance spectrum of typical cold reflector;
Fig. 6 is the antisolar glass and the infrared cut coating curve of spectrum;
Fig. 7 is the visibility function of human eye under the different lightness environment;
Fig. 8 is the relative spectral power distribution map of the 30deg curve of spectrum of the present invention in conjunction with the 3000K light source.
Fig. 9 is the relative spectral power distribution schematic diagram of 3000K halogen light source;
Figure 10 adjusts the curve of spectrum for colour temperature of the present invention;
Figure 11 is an equipment schematic of the present invention.
The specific embodiment
As shown in Figure 1, wide-angle color temperature-adjusting cold reflector for shadowless lamp comprises base material 9; On described base material 9, be provided with rete 10; Described rete 10 is alternately piled up by the high and low refractive index material and forms, and its film layer structure is (HL)
12H, wherein H is the high-index material rete, L is the low-index material rete; The refractive index n of base material 9 of the present invention=1.52.Described H rete coating materials is TiO
2, L rete coating materials is SiO
216 is halogen light source; The thicknesses of layers of described rete 10 is:
The 1st rete H 20nm
The 2nd rete L 60nm
The 3rd rete H 48nm
The 4th rete L 40nm
The 5th rete H 50nm
The 6th rete L 50nm
The 7th rete H 50nm
The 8th rete L 65nm
The 9th rete H 38nm
The 10th rete L 65nm
The 11st rete H 48nm
The 12nd rete L 85nm
The 13rd rete H 45nm
The 14th rete L 75nm
The 15th rete H 45nm
The 16th rete L 90nm
The 17th rete H 45nm
The 18th rete L 90nm
The 19th rete H 40nm
The 20th rete L 70nm
The 21st rete H 60nm
The 22nd rete L 90nm
The 23rd rete H 70nm
The 24th rete L 135nm
The 25th rete H 25nm.
Embodiment 2
Other is as embodiment 1, and the thicknesses of layers of rete 10 of the present invention also can be:
The 1st rete H 30nm
The 2nd rete L 70nm
The 3rd rete H 52nm
The 4th rete L 70nm
The 5th rete H 55nm
The 6th rete L 55nm
The 7th rete H 55nm
The 8th rete L 70nm
The 9th rete H 80nm
The 10th rete L 75nm
The 11st rete H 55nm
The 12nd rete L 99nm
The 13rd rete H 55nm
The 14th rete L 85nm
The 15th rete H 55nm
The 16th rete L 96nm
The 17th rete H 55nm
The 18th rete L 96nm
The 19th rete H 45nm
The 20th rete L 75nm
The 21st rete H 66nm
The 22nd rete L 95nm
The 23rd rete H 76nm
The 24th rete L 150nm
The 25th rete H 145nm.
Embodiment 3
Other is as embodiment 1, and the thicknesses of layers of rete 10 of the present invention also can be:
The 1st rete H 25nm
The 2nd rete L 60nm
The 3rd rete H 50nm
The 4th rete L 66nm
The 5th rete H 52nm
The 6th rete L 53nm
The 7th rete H 53nm
The 8th rete L 68nm
The 9th rete H 40nm
The 10th rete L 68nm
The 11st rete H 50nm
The 12nd rete L 90nm
The 13rd rete H 48nm
The 14th rete L 78nm
The 15th rete H 50nm
The 16th rete L 92nm
The 17th rete H 50nm
The 18th rete L 93nm
The 19th rete H 43nm
The 20th rete L 73nm
The 21st rete H 63nm
The 22nd rete L 92nm
The 23rd rete H 74nm
The 24th rete L 140nm
The 25th rete H 40nm.
Embodiment 4
The 1st rete H 27nm
The 2nd rete L 65nm
The 3rd rete H 50nm
The 4th rete L 66nm
The 5th rete H 53nm
The 6th rete L 54nm
The 7th rete H 53nm
The 8th rete L 67nm
The 9th rete H 75nm
The 10th rete L 66nm
The 11st rete H 50nm
The 12nd rete L 90nm
The 13rd rete H 50nm
The 14th rete L 80nm
The 15th rete H 50nm
The 16th rete L 93nm
The 17th rete H 50nm
The 18th rete L 93nm
The 19th rete H 43nm
The 20th rete L 73nm
The 21st rete H 64nm
The 22nd rete L 93nm
The 23rd rete H 73nm
The 24th rete L 145nm
The 25th rete H 135nm.
The present invention's warm speculum of mixing colours by the particular design to mirror coating system, only needs a metallic-membrane plating reflector to cooperate halogen light source that the colour temperature of emergent light is reached more than the 4000K, satisfies the instructions for use of shadowless lamp, has realized that directly a film uses more.Integrally-built complexity of shadowless lamp and cost have been reduced.
Shadowless lamp of the present invention has simple more structure, cold light reflectance coating and colour temperature are adjusted film to be varied to a kind of film system and directly to be coated on the reflective mirror, greatly reduce the cost and the complexity of shadowless lamp, simplified the structure of shadowless lamp, have good colour rendering and high illumination simultaneously.The result of the curve of spectrum as shown in Figure 8.Under different angle of incidence of light degree, though the spectrum of reflected light curve changes, the colour temperature and the colour rendering index that are calculated in conjunction with the 3000K light source change very little.
Equipment required for the present invention as shown in figure 11,1 is mechanical pump among the figure; 2 is diffusion pump; 3 is vacuum chamber; 4 is valve; 5 is electron gun; 6 is ion gun; 7 is the reflective mirror jig; 8 is quartz crystal thicknesses of layers controller.
It is as follows that vacuum of the present invention is coated with process:
1, the above-mentioned film system/program of establishment writes the quartz crystal controller;
2, substrate vacuum chamber-the be evacuated to 1.5*10 that packs into
-2Pa;
3, fritting coating materials;
4, temperature reaches 300 degree unlatching ion gun bombardments 10 minutes;
5, open quartz crystal thicknesses of layers controller and prepare plated film;
6, the unlocking electronic rifle enters coating process;
7, be coated with end and take out product, be coated with process next time.
Shadowless lamp film of the present invention not only has the good optical characteristic, also greatly reduces the production cost of shadowless lamp, simplifies the structure.
Claims (2)
1. wide-angle color temperature-adjusting cold reflector for shadowless lamp comprises base material (9), it is characterized in that: be provided with rete (10) on described base material (9); Described rete (10) is alternately piled up by the high and low refractive index material and forms, and its film layer structure is (HL)
12H, wherein H is the high-index material rete, L is the low-index material rete; Refractive index n=1.52 of described base material (9); Described H rete coating materials is TiO
2, L rete coating materials is SiO
2
The thicknesses of layers of described rete (10) is:
The 1st rete H 20～30nm
The 2nd rete L 60～70nm
The 3rd rete H 48～52nm
The 4th rete L 40～70nm
The 5th rete H 50～55nm
The 6th rete L 50～55nm
The 7th rete H 50～55nm
The 8th rete L 65～70nm
The 9th rete H 38～80nm
The 10th rete L 65～75nm
The 11st rete H 48～55nm
The 12nd rete L 85～99nm
The 13rd rete H 45～55nm
The 14th rete L 75～85nm
The 15th rete H 45～55nm
The 16th rete L 90～96nm
The 17th rete H 45～55nm
The 18th rete L 90～96nm
The 19th rete H 40～45nm
The 20th rete L 70～75nm
The 21st rete H 60～66nm
The 22nd rete L 90～95nm
The 23rd rete H 70～76nm
The 24th rete L 135～150nm
The 25th rete H 25～145nm.
2. wide-angle color temperature-adjusting cold reflector for shadowless lamp according to claim 1 is characterized in that: the thickness of described the 4th rete L is 60～70nm; The thickness of described the 9th rete H is 70～80nm, and the thickness of described the 25th rete H is 130～145nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100129252A CN101660717B (en) | 2008-08-25 | 2008-08-25 | Wide-angle color temperature-adjusting cold reflector for shadowless lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100129252A CN101660717B (en) | 2008-08-25 | 2008-08-25 | Wide-angle color temperature-adjusting cold reflector for shadowless lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101660717A CN101660717A (en) | 2010-03-03 |
| CN101660717B true CN101660717B (en) | 2011-04-20 |
Family
ID=41788897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100129252A Expired - Fee Related CN101660717B (en) | 2008-08-25 | 2008-08-25 | Wide-angle color temperature-adjusting cold reflector for shadowless lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101660717B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140077681A1 (en) * | 2012-09-18 | 2014-03-20 | General Electric Company | Enhanced aluminum thin film coating for lamp reflectors |
| CN103668067B (en) * | 2013-12-09 | 2016-01-13 | 西南技术物理研究所 | The preparation method of the infrared highly reflecting films system of wide-angle multiband |
| EP3265862B1 (en) * | 2015-02-05 | 2022-03-30 | Signify Holding B.V. | Color correcting collimation of light from a color over position light source |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868033A (en) * | 2003-10-15 | 2006-11-22 | 株式会社尼康 | Multilayer mirror, method for manufacturing the same, and exposure equipment |
-
2008
- 2008-08-25 CN CN2008100129252A patent/CN101660717B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868033A (en) * | 2003-10-15 | 2006-11-22 | 株式会社尼康 | Multilayer mirror, method for manufacturing the same, and exposure equipment |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2006-308705A 2006.11.09 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101660717A (en) | 2010-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1036853A (en) | Coated architectural glass system and method | |
| AU2015225134B2 (en) | Infrared reflecting substrate and method for producing same | |
| US5143445A (en) | Glass reflectors lpcvd coated with optical interference film | |
| CA2017471C (en) | Optical interference coatings and lamps using same | |
| CN109683214A (en) | Double-sided coated glass and production technology applied to visible light and near infrared light wave band | |
| US3410625A (en) | Multi-layer interference film with outermost layer for suppression of pass-band reflectance | |
| CA1037707A (en) | Light-transmitting, thermal-radiation reflecting filter | |
| US3761160A (en) | Wide band anti-reflection coating and article coated therewith | |
| Lee et al. | High-purity reflective color filters based on thin film cavities embedded with an ultrathin Ge 2 Sb 2 Te 5 absorption layer | |
| CN101660717B (en) | Wide-angle color temperature-adjusting cold reflector for shadowless lamp | |
| US4645290A (en) | Selective color filter | |
| CN111747658A (en) | Colorful color-changing coated glass and preparation method thereof | |
| CN107315212B (en) | Dual-channel filter and method for preparing dual-channel filter by spin-coating blue dye | |
| CA2364533A1 (en) | Cover part for a light source | |
| US20050194907A1 (en) | Plasma lamp and method | |
| CN110603481B (en) | Optical device comprising a switchable layer and at least one optical layer | |
| CN114415281B (en) | Preparation method of ultra-wide passband shortwave pass filter film | |
| WO2004079278A1 (en) | Glazing | |
| CN104991294B (en) | Extremely-low temperature environment large-aperture reflecting-type telescope frost-prevention film system and preparing method thereof | |
| JP4836071B2 (en) | High-performance vanadium dioxide-based automatic light control material and method for improving performance of light control material | |
| CN212833489U (en) | Dazzle various coated glass that discolours | |
| CN113960705A (en) | Broadband high-reflection all-dielectric-film ultraviolet reflecting mirror for ultraviolet curing and preparation method thereof | |
| US3288625A (en) | Optical device having an infrared radiation transmitting and visible radiation reflecting layer of lanthanum hexaboride | |
| CN114576873A (en) | Color solar photo-thermal conversion element | |
| US8461754B2 (en) | High efficiency glass halogen lamp with interference coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20110825 |