CN106016173A - Cover used for light source and illumination device - Google Patents
Cover used for light source and illumination device Download PDFInfo
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- CN106016173A CN106016173A CN201610171945.9A CN201610171945A CN106016173A CN 106016173 A CN106016173 A CN 106016173A CN 201610171945 A CN201610171945 A CN 201610171945A CN 106016173 A CN106016173 A CN 106016173A
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- light source
- persistent phosphor
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- cover
- persistent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/10—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
- F21V3/12—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings the coatings comprising photoluminescent substances
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Luminescent Compositions (AREA)
Abstract
The invention provides a cover used for a light source and an illumination device utilizing long afterglow phosphors. The cover used for the light source and the illumination device further display the quality consistent with target illuminance. The cover used for the light source is characterized in that the cover comprises a cover member and two kinds of afterglow phosphors, in the two kinds of afterglow phosphors, the first afterglow phosphor indicates that the wavelength area with a relatively high value has light emitting peaks when a photopic vision relative visibility is compared with a scotopic vision relative visibility, and the second afterglow phosphor indicates that the wavelength area with a relatively high value has light emitting peaks when the scotopic vision relative visibility is compared with the photopic vision relative visibility.
Description
Technical field
The present invention relates to light source cover and illuminator.
Background technology
The illuminators such as the fluorescent lamp of general straight pipe type, ring-type type or bulb type are stopping from power supply
When stopping the supply of electricity, stop luminescence.Even however, it may be desirable to after turning off the light or have a power failure after also can be temporary
Time maintain lightness (also referred to as illumination).Therefore, it is developed to supply the storage of MIN illumination
The fluorescent lamp of light type.
The long-afterglow fluorescent body used in the fluorescent lamp of light accumulation type is to make use of to swash at stopping ultraviolet
After Faing, in several minutes to a few hours, observe the fluorophor of the phosphorescent glow of luminescence.As profit
By an example of the illuminator of above-mentioned long-afterglow fluorescent body, have disclosed in following patent documentation 1
Bulb type fluorescence lamp.Above-mentioned bulb type fluorescence lamp is at the outer housing being made up of glass lamp shade and housing
Inside it is assembled with luminous tube and the bulb type fluorescence lamp of bright light circuit, on the surface of above-mentioned glass lamp shade
On be provided with the layer containing above-mentioned long-afterglow fluorescent body.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 9-320530 publication
Summary of the invention
Invent problem to be solved
According to above-mentioned bulb type fluorescence lamp, even Emergency time in time having a power failure, also can
Enough guarantee the illumination of people's moment free that can allow indoor of certain time.But, only have the most aobvious
Show the illuminator of twilight sunset, but expectation at present demonstrates the quality of the illumination meeting purpose further
Illuminator.
Therefore, it is an object of the invention to provide as the illuminator utilizing long-afterglow fluorescent body
And demonstrate light source cover and the illuminator of the quality of the illumination meeting purpose further.
For the method solving problem
To achieve these goals, the light source cover of the present invention is characterised by, comprises cover component
With two kinds of persistent phosphors, in above two persistent phosphor, a kind of is relative in vision improvement
Visibility demonstrates that compared with scotopic luminosity coefficient the wavelength region of relatively high value has
First persistent phosphor of glow peak, another kind is in scotopic luminosity coefficient and vision improvement
Luminosity coefficient compare demonstrate that the wavelength region of relatively high value has glow peak more than second
Brightness fluorophor.
The illuminator of the present invention is characterised by, the above-mentioned light source comprising light source and the present invention is used
Cover, above-mentioned light source cover configures in the way of covering above-mentioned light source.
Invention effect
According to the present invention, though wait after such as turning off the light the sensitivity of eyes through time change,
Also above two persistent phosphor can be utilized to guarantee the illumination corresponding with the sensitivity of eyes.
It is thus possible according to the invention to provide demonstrate the quality of the illumination meeting purpose further
Light source cover and illuminator.
Accompanying drawing explanation
Fig. 1 (a)～(c) are the skeleton diagrams of the example of the light source cover representing the present invention.
Label declaration
1 cover component
4 light sources
10,20,30 light source cover
11 layers containing two kinds of persistent phosphors
21,32 layer containing the first persistent phosphor
22,33 layer containing the second persistent phosphor
31 duplexers
Detailed description of the invention
Hereinafter, with reference to accompanying drawing, light source cover and the illuminator of the present invention are described in detail.
But, the invention is not restricted to the following description.It should be noted that in following Fig. 1,
Mark same symbol to a part, and the description thereof will be omitted sometimes.It addition, in the accompanying drawings, for
Being easy to explanation, the structure in each portion suitably represents sometimes simplifiedly, and the size in each portion ratio waits with real
Border is different, sometimes schematically shows.
[light source cover]
As it was previously stated, the light source cover of the present invention is characterised by, comprise cover component and more than two kinds
Brightness fluorophor, in above two persistent phosphor, a kind of be vision improvement luminosity coefficient with
Scotopic luminosity coefficient is compared and is demonstrated that the wavelength region of relatively high value has glow peak
First persistent phosphor, another kind is can with the relative of vision improvement in scotopic luminosity coefficient
Degree of opinion compares the second twilight sunset fluorescence demonstrating that the wavelength region of relatively high value has glow peak
Body.
Above-mentioned " luminosity coefficient " refer to such as under each vision of vision improvement and scotopic vision by visible
The visibility of the emission wavelength of the value (maximum visibility) that degree (unit: lm/w) display is the highest is set to 1
Time relatively represent the value of visibility of each wavelength.The spike of the maximum visibility under vision improvement is long
Inconsistent with the spike length of the maximum visibility under scotopic vision, the above-mentioned spike of above-mentioned vision improvement is long
It is positioned at the wavelength side grown tall than above-mentioned scotopic above-mentioned spike.
In the present invention, above-mentioned first persistent phosphor is in the luminosity coefficient of vision improvement and scotopic vision
Luminosity coefficient compare the wavelength region of the relatively high value of display there is glow peak.Therefore, exist
Under vision improvement, people feels that the twilight sunset of above-mentioned first persistent phosphor is than above-mentioned second persistent phosphor
Twilight sunset brighter.On the other hand, above-mentioned second persistent phosphor is in scotopic luminosity coefficient
Show that with the luminosity coefficient of vision improvement the wavelength region of relatively high value has glow peak.Therefore,
Under scotopic vision, people feels that the twilight sunset of above-mentioned second persistent phosphor is than above-mentioned first twilight sunset fluorescence
The twilight sunset of body is brighter.The light source cover of the present invention comprises both persistent phosphors, therefore, people
Under vision improvement after the most just turning off the light, can feel because of the twilight sunset of above-mentioned first persistent phosphor
Feel bright, under the scotopic vision after passage in time from turning off the light, because of above-mentioned second twilight sunset fluorescence
The twilight sunset of body and can feel bright.Therefore, no matter after the most just turning off the light, or from going out
Lamp rises and elapses in time and make people be accustomed to the moment of dark, and the light source cover of the present invention can be given
People provides the lightness being suitable for respective state.
Can root based on aforementioned reason, above-mentioned first persistent phosphor and above-mentioned second persistent phosphor
Select according to the difference of the visibility under vision improvement and scotopic vision.Therefore, above-mentioned first twilight sunset is glimmering
Body of light is different with the wavelength of the above-mentioned second respective glow peak of persistent phosphor, such as, and above-mentioned
One persistent phosphor has glow peak at long wavelength side, and above-mentioned second persistent phosphor is short wavelength
Side has glow peak.The glow peak of above-mentioned first persistent phosphor and above-mentioned second persistent phosphor
The difference of glow peak be not particularly limited, lower limit for example, more than 5nm, more than 10nm, 20nm
Above.
As above-mentioned first persistent phosphor, the most such as, at predetermined wavelength, there is glow peak
Persistent phosphor.The lower limit of above-mentioned wavelength for example, more than 515nm, its upper limit is the most especially
Limit, for example, 580nm, the scope of above-mentioned wavelength for example, 515～580nm.
As above-mentioned second persistent phosphor, the most such as, at predetermined wavelength, there is glow peak
Persistent phosphor.The upper limit of above-mentioned wavelength for example, below 515nm, less than 515nm, its
Lower limit is not particularly limited, and for more than 435nm, the scope of above-mentioned wavelength is for example,
435～515nm, 435nm less than 515nm.It should be noted that above-mentioned first twilight sunset
The illustration of the wavelength of the glow peak of fluorophor and the wavelength of the glow peak of above-mentioned second phosphorescence afterglow body
Illustration repeat sometimes, but as it was previously stated, above-mentioned first persistent phosphor and above-mentioned second glimmering
Light twilight sunset body carries out selecting in the way of the wavelength of respective glow peak is different.
As above-mentioned first persistent phosphor, specifically, can enumerate such as contain rare earth unit
The MAl of element2O4(M is Ca, Sr or Ba) and containing in rare earth element, Cu and Cl
The ZnS of at least one.In the light source cover of the present invention, above-mentioned first persistent phosphor is the most permissible
For any one in the former and the latter, alternatively, it is also possible to both are applied in combination.Above-mentioned containing
The MAl of rare earth element2O4Can be such as a kind of, it is also possible to be used in combination, above-mentioned
Can be a kind of containing the ZnS of at least one in rare earth element, Cu and Cl, it is also possible to two
Plant combination of the above to use.As above-mentioned rare earth element, can enumerate such as Eu, Ce, Pr, Nd,
Sm, Tb, Dy, Ho, Er, Tm, Yb, Lu etc..The above-mentioned MAl containing rare earth element2O4
Such as can be containing a kind of rare earth element, it is also possible to containing two or more rare earth elements.It addition,
The above-mentioned ZnS containing rare earth element such as can be containing a kind of rare earth element, it is also possible to containing two
Plant above rare earth element.As above-mentioned first persistent phosphor, such as, MAl2O4(M is
Ca, Sr or Ba) preferably comprise choosing free Eu, Ce, Pr, Nd, Sm, Tb, Dy, Ho,
At least one rare earth element in the group of Er, Tm, Yb and Lu composition.As above-mentioned more than first
Brightness fluorophor, such as, ZnS preferably comprises at least one in Cu and Cl.Additionally, wherein,
As above-mentioned first persistent phosphor, the more preferably SrAl containing Eu and Dy2O4, contain
The ZnS of Cu and the ZnS containing Cu and Cl.The illuminant color of above-mentioned first persistent phosphor
For example, green or yellow green.Above-mentioned first persistent phosphor such as can use commercially available product, also
Own product can be used.As above-mentioned commercially available product, such as basic special chemical strain formula can be enumerated
The SrAl containing Eu and Dy that commercial firm manufactures2O4(ProductName " G-300C ", " G-300M ",
“G-300F”、“G-300FF”、“G-300L160”、“GLL-300M”、
" GLL-300F ", " GLL-300FF/FFS ", glow peak wavelength Xp=520nm), contain
ZnS (ProductName " GSS ", the glow peak wavelength X of Cup=530nm), day Asia chemical industry strain
ZnS (ProductName " NP-2800 ", the λ containing Cu and Cl that formula commercial firm manufacturesp=525nm) etc..
As above-mentioned first persistent phosphor, can only use any one, it is also possible to be applied in combination two
More than Zhong.
The persistence of above-mentioned first persistent phosphor is not particularly limited, for example, 10 minutes with
Above, more than 20 minutes, more than 30 minutes.Refer to above-mentioned persistence such as utilize 200 [lx]
D65 standard light source irradiate after-glow brightness after 20 minutes and decay to 0.32mcd/m2Time (under
With).
The after-glow brightness of above-mentioned first persistent phosphor is not particularly limited, for example, turning off the light or
Twilight sunset can be utilized after power failure to remain able to confirm the lightness of degree by the side of within a certain period of time
Brightness.
As above-mentioned second persistent phosphor, specifically, can enumerate such as contain rare earth unit
The M of element4Al14O25(M is Ca, Sr or Ba), Sr containing rare earth element2Mg(Si2O7), contain
There is the Y of rare earth element, Ti and Mg2O2S, the CaS containing Bi and the CaSrS containing Bi.
In the light source cover of the present invention, above-mentioned second persistent phosphor can be such as M4Al14O25、
Sr2Mg、Y2O2One in S, CaS and CaSrS, it is also possible to be used in combination.
The above-mentioned M containing rare earth element4Al14O25Can be such as a kind of, it is also possible to two or more combinations
Use, the above-mentioned Sr containing rare earth element2Mg can be such as a kind of, it is also possible to two or more
It is applied in combination, above-mentioned containing rare earth element, the Y of Ti and Mg2O2S can be such as a kind of,
Can also be used in combination.As above-mentioned rare earth element, can enumerate such as Eu, Ce,
Pr, Nd, Sm, Tb, Dy, Ho, Er, Tm, Yb, Lu etc..Above-mentioned containing rare earth element
M4Al14O25Such as can be containing a kind of rare earth element, it is also possible to containing two or more rare earths
Element.The above-mentioned Sr containing rare earth element2Mg such as can be containing a kind of rare earth element, it is possible to
With containing two or more rare earth elements.It addition, it is above-mentioned containing rare earth element, Ti and Mg
Y2O2S such as can be containing a kind of rare earth element, it is also possible to containing two or more rare earth elements.
As above-mentioned second persistent phosphor, such as, M4Al14O25(M is Ca, Sr or Ba) preferably contains
There is free Eu, Ce, Pr, Nd, Sm, Tb, Dy, Ho, Er, Tm, Yb and Lu group of choosing
At least one rare earth element in the group become.As above-mentioned second persistent phosphor, such as,
Sr2Mg(Si2O7) preferably comprise choosing free Eu, Ce, Pr, Nd, Sm, Tb, Dy, Ho,
At least one rare earth element in the group of Er, Tm, Yb and Lu composition.As above-mentioned more than second
Brightness fluorophor, such as, Y2O2S preferably comprise choosing free Eu, Ce, Pr, Nd, Sm, Tb,
Dy, Ho, Er, Tm, Yb and Lu composition group at least one rare earth element, Ti, with
And Mg.As above-mentioned second persistent phosphor, such as, CaS preferably comprises Bi.As above-mentioned
Second persistent phosphor, such as, CaSrS preferably comprises Bi.Wherein, as above-mentioned more than second
Brightness fluorophor, more preferably contains the Sr of Eu and Dy4Al14O25, Sr containing Eu2Mg(Si2O7)、
CaAl containing Eu and Nd2O4It is glaucous fluorophor Deng illuminant color.These fluorophor can
To use commercially available product, it is possible to use own product.As above-mentioned commercially available product, can enumerate such as
The Sr containing Eu and Dy that Nemoto & Co., Ltd manufactures4Al14O25(ProductName
" BG-300M ", " BGL-300M ", " BGL-300FF/FFS ", λem=490nm)
Deng.As above-mentioned second persistent phosphor, can only use any one, it is also possible to combination makes
With two or more.
The persistence of above-mentioned second persistent phosphor is not particularly limited, for example, 30 minutes with
Above, more than 60 minutes, more than 90 minutes.
Above-mentioned cover component is not particularly limited, and uses for example, it is possible to enumerate in general lamp goods
Glass bulb, the cover etc. of resin manufacture that uses in general LED illumination utensil.
The shape of above-mentioned cover is not particularly limited, with reference to the cover of the illuminator used.
As the formation material of above-mentioned cover component, it is not particularly limited, can enumerate and such as can make
The resin material used for the cover of general light source or the base of glass material.As above-mentioned tree
Fat material, is not particularly limited, and can enumerate the general light transmissions such as such as acrylic resin
Resin material etc..As above-mentioned glass material, the glass of the most general light transmission can be enumerated
Glass material etc..
The light source cover of the present invention can be such as to be mixed into more than above two in above-mentioned cover component
The form of brightness fluorophor, it is also possible to for being configured with above two twilight sunset fluorescence on above-mentioned cover component
The form of body.Hereinafter, the former form is referred to as the first form, the form of the latter is referred to as
Two forms.
As it was previously stated, the light source of above-mentioned first form covers for be mixed in above-mentioned cover component
State the form of two kinds of persistent phosphors.The manufacturer covered as the above-mentioned light source of this first form
Method, is not particularly limited, and can carry out according to general known technology.Specifically, such as
Add above-mentioned base, above two persistent phosphor and solvent and carry out mixing, preparing cover group
Compound.Then, above-mentioned cover compositions is injected in the mould used when manufacturing light source cover,
Heating etc. is utilized to make it solidify, thus, it is possible to manufacture above-mentioned light source cover.
In the light source cover of above-mentioned first form, above-mentioned first persistent phosphor and above-mentioned more than second
The weight ratio (X:Y) of brightness fluorophor is not particularly limited, for example, 1:0.1～10.
The thickness of the cover component being mixed into above two persistent phosphor is not particularly limited, such as
For 0.2mm～5mm.
As it was previously stated, the light source of above-mentioned second form covers for be configured with on above-mentioned cover component
State the form of two kinds of persistent phosphors.The light source cover of above-mentioned second form is illustrated in figure
In 1 (a)～(c).In Fig. 1 (a)～(c) each figure, the surface of the light source side of cover component is configured with above-mentioned
Two kinds of persistent phosphors, but the invention is not restricted to this configuration, for example, it is possible at above-mentioned cover component
The surface with light source side opposite side on, be configured with more than above two on the surface of i.e. visual side
Brightness fluorophor.
The light source cover 10 of Fig. 1 (a) is to configure on the surface of light source 4 side of above-mentioned cover component 1
There is the form of containing above two persistent phosphor a layer 11.
The thickness of above-mentioned layer 11 is not particularly limited, for example, 20～1000 μm.
The light source cover 20 of Fig. 1 (b) is to be laminated with containing above-mentioned on the surface of above-mentioned cover component 1
The layer (ground floor) 21 of the first persistent phosphor and the layer (second containing above-mentioned second persistent phosphor
Layer) 22 form, specifically, on the surface of above-mentioned cover component 1, hand in the in-plane direction
Alternately it is configured with above-mentioned ground floor 21 and the above-mentioned second layer 22." in-plane " described herein
Refer to, as shown in Fig. 1 (b), in the case of above-mentioned cover component 1 is curved surface, can be along upper
State the direction of curved surface, the i.e. direction of arrow shown in Fig. 1 (b).
The thickness of above-mentioned ground floor 21 and the thickness of the above-mentioned second layer 22 are not particularly limited, can
With identical with the thickness of the one of Fig. 1 (a) layer of above-mentioned layer 11.
The light source cover 30 of Fig. 1 (c) is to be laminated with duplexer 31 on the surface of above-mentioned cover component 1
Form.Above-mentioned duplexer 31 comprises the layer (ground floor) 32 containing above-mentioned first persistent phosphor
With the layer (second layer) 33 containing above-mentioned second persistent phosphor, at the light source 4 of above-mentioned cover component 1
It is laminated with above-mentioned ground floor 32 across the above-mentioned second layer 33 on the surface of side.In the present invention, on
The lamination order stating ground floor 32 and the above-mentioned second layer 33 does not limit, from improving launching efficiency
From the viewpoint of, preferably across the above-mentioned second layer 33 above-mentioned ground floor of stacking 32 as shown in Fig. 1 (c).
The thickness of above-mentioned ground floor 32 is not particularly limited.The thickness of the above-mentioned second layer 33 does not has
Limit especially.The thickness of above-mentioned ground floor 32 does not has spy with the ratio of the thickness of the above-mentioned second layer 33
Do not limit.
Hereinafter, the manufacture method covered the light source of Fig. 1 (a)～(c) illustrates.Fig. 1 (a)～(c)
Light source cover manufacture method be not particularly limited, can enter according to common known technology
OK.
The light source cover 10 of Fig. 1 (a) such as can manufacture in the following manner.First, by upper
State two kinds of persistent phosphors to mix with solvent, prepare coating fluid.Then, above-mentioned coating fluid is coated with
Cloth, on the surface of the light source side of above-mentioned cover component, is consequently formed coated film.Above-mentioned coated film shape
Become a layer 11 containing above two persistent phosphor, above-mentioned light source cover 10 can be manufactured.On
State coated film and such as can be dried process, baking process further.Above-mentioned coating fluid is such as
The arbitrary additives such as binding agent can be added as needed on.
It addition, above-mentioned light source cover 10 such as can also use containing above two persistent phosphor
Sheet manufacture.Sheet above manufactures the most as follows: by above two persistent phosphor, solvent and
Base substrate resins such as () such as thermoplastic resins mixing, using said mixture as raw material system
Make.The manufacture method of sheet such as can be carried out according to common known technology.As concrete example,
Such as said mixture is heated to the temperature of more than the fusing point of above-mentioned matrix resin so that it is melted
After, use extruder etc. to carry out extrusion molding, thus, it is possible to manufacture sheet.Then, by above-mentioned
On the surface of the light source side that sheet is configured to above-mentioned cover component, use thus, it is possible to manufacture above-mentioned light source
Cover 10.It is gluing that above-mentioned cover component and sheet above such as can utilize adhesive etc. to carry out.
Above-mentioned first persistent phosphor in above-mentioned layer 11 and the weight of above-mentioned second persistent phosphor
Amount ratio is not particularly limited, it is possible to use the weight ratio of explanation in above-mentioned first form.
The light source cover 20 of Fig. 1 (b) is such as except by containing the first of above-mentioned first persistent phosphor
Layer 21 and the second layer 22 containing above-mentioned second persistent phosphor are alternately configured to above-mentioned cover structure
Beyond on the surface of part, it is possible to use the manufacture method of the light source cover 10 of aforesaid Fig. 1 (a).
The light source cover 30 of Fig. 1 (c) is except by the ground floor 32 containing above-mentioned first persistent phosphor
With on the surface that the second layer 33 containing above-mentioned second persistent phosphor is laminated to above-mentioned cover component with
Outward, it is possible to use the manufacture method of the light source cover 10 of aforesaid Fig. 1 (a).
[illuminator]
Hereinafter, the illuminator of the present invention is illustrated.Above-mentioned illuminator is characterised by,
As it was previously stated, comprise light source and above-mentioned light source cover, above-mentioned light source covers to cover above-mentioned light source
Mode configure.
In the light source cover of the present invention, as light source, excite above two twilight sunset as long as possess
Fluorophor and make the wavelength of its luminescence and possess the light source of the wavelength that can utilize as general illumination
Then it is not particularly limited.As above-mentioned light source, such as radiation visible ray or ultraviolet light can be enumerated
LED (light emitting diode), fluorophor etc..It should be noted that following form can be: make
With the fluorophor of the radiation ultraviolet light without visible ray as above-mentioned light source, utilize by above-mentioned ultraviolet
Light activated fluorophor sends visible ray.
As above-mentioned illuminator, it is not particularly limited, general lamp goods, industry can be enumerated
Business ligthing paraphernalia etc..As above-mentioned lamp goods, such as bulb type LED, glimmering can be enumerated
Light modulation, electric filament lamp, Halogen light, HID lamp etc..As above-mentioned business ligthing paraphernalia, permissible
Enumerate the most general LED illumination utensil, fluorescent lamp utensil etc..As above-mentioned LED illuminator
Tool, can enumerate the such as ligthing paraphernalia etc. disclosed in Japanese Unexamined Patent Publication 2012-185981 publication.
The illuminator with general long-afterglow fluorescent body is bright after just turning off the light, but at any time
Between elapse the most dimmed, or be difficult to after just turning off the light to see and passage becomes easily visible in time,
And the sensitivity of not according to eyes carries out illumination design.
On the other hand, the illuminator of the light source cover possessing the present invention first can be when bright light
Light source is utilized to use as illumination.And, utilize the luminescence of above-mentioned light source, can be to above-mentioned
Two kinds of persistent phosphors carry out exciting, luminous and store light.Therefore, utilize above two twilight sunset glimmering
The luminescence of body of light, it is possible to supply illumination after just turning off the light or having a power failure within a certain period of time.And,
Possesses the illuminator of above-mentioned light source cover after just turning off the light or having a power failure, it is possible to utilize above-mentioned first
The luminescence of persistent phosphor keeps the illumination corresponding with the light adaptation of eyes.And, from going out
Rise after certain period when lamp or power failure, it is possible to utilize the luminescence of above-mentioned second persistent phosphor
Keep the illumination corresponding with the dark adaptation of eyes.So, possesses the illumination of above-mentioned light source cover
Device, even if the sensitivity of eyes elapses in time and changes, it is also possible to utilize more than two kinds
Brightness fluorophor guarantees the illumination corresponding with the sensitivity of eyes.Thus, according to the present invention,
To colory illuminator when turning off the light or have a power failure.
[embodiment]
Hereinafter, enumerate concrete example the present invention is illustrated in more detail.
[embodiment and comparative example]
Light source cover is manufactured in the way of as described below.
First, the polycarbonate pellets shown in table 1 below and persistent phosphor are mixed, preparation
Light source cover compositions.
[table 1]
As above-mentioned first persistent phosphor, Nemoto & Co., Ltd is used to manufacture
“GLL-300FF”.The wavelength of the glow peak of above-mentioned first persistent phosphor is 520nm.It addition,
As above-mentioned second persistent phosphor, Nemoto & Co., Ltd is used to manufacture
“BGL-300FF”.The wavelength of the glow peak of above-mentioned second persistent phosphor is 490nm.On
The wavelength difference of the glow peak stating both is 30nm.
Then, utilize heating to make above-mentioned light source cover compositions soften, manufactured by extrusion molding
The light source cover of embodiment and comparative example.Above-mentioned light source cover is set as illuminating strain formula meeting with NEC
The identical size of LED illumination unit (ProductName DLU44001/N-N8) that society manufactures, identical
Shape.
For being assembled with each LED illumination unit that the light source of embodiment and comparative example covers respectively,
Light splitting radiation illumination meter (ProductName CL-500A) using Konica Minolta to manufacture measure from
The twilight sunset illumination till 60 minutes is played after just turning off the light.Above-mentioned twilight sunset illumination meter is arranged on distance
The position of the position 1m of above-mentioned LED illumination unit.Measurement result utilizes the standard under vision improvement
Standard relatlve visibility under luminosity coefficient and scotopic vision is corrected.Then, just to disappear
The corrected value of the bright visibility after light, as 100, obtains the relative value of each visibility.By these
Result is shown in table 2 below.
[table 2]
In comparative example 1, the relative value of the visibility under vision improvement after just turning off the light is big, obtains
Good result.And on the other hand, after just turning off the light under scotopic vision after about 30 minutes
The relative value of visibility little.That is, elapse in time from turning off the light, when people is accustomed to dark
Carve, it is impossible to provide sufficient lightness to people.In comparative example 2, after just turning off the light through about 30
The relative value of the visibility under scotopic vision after minute is big, has obtained good result.And another
Aspect, the relative value of the visibility under vision improvement after just turning off the light is little.That is, after just turning off the light,
Sufficient lightness can not be provided to people.
On the other hand, in embodiment, the relative value of the visibility under vision improvement after just turning off the light,
With after just turning off the light the relative value of visibility under scotopic vision after about 30 minutes the most abundant
Greatly, good result has been obtained.Therefore, the LED illumination of the light source cover of embodiment it is assembled with
No matter unit is after just turning off the light, or elapse in time from turning off the light and make people be accustomed to dark
In the moment, sufficient lightness can be provided to people.
Above, reference implementation mode describes the present invention, but the invention is not restricted to above-mentioned
Embodiment.Composition and details to the present invention can carry out this area within the scope of the invention
The various changes that skilled artisan will appreciate that.
Claims (16)
1. a light source cover, it is characterised in that
Comprise cover component and two kinds of persistent phosphors,
In the two persistent phosphor,
A kind of for demonstrating compared with scotopic luminosity coefficient in the luminosity coefficient of vision improvement
The wavelength region of relatively high value has the first persistent phosphor of glow peak,
Another kind of in the display compared with the luminosity coefficient of vision improvement of scotopic luminosity coefficient
The wavelength region going out relatively high value has the second persistent phosphor of glow peak.
2. light source cover as claimed in claim 1, wherein,
Described first persistent phosphor has glow peak at the wavelength of more than 515nm,
Described second persistent phosphor has glow peak at the wavelength of below 515nm,
The described wavelength of described first persistent phosphor and the described ripple of described second persistent phosphor
Long mutually different.
3. light source cover as claimed in claim 1 or 2, wherein,
Described first persistent phosphor has glow peak at the wavelength of more than 515nm,
Described second persistent phosphor is less than having glow peak at the wavelength of 515nm.
4. light source cover as claimed in claim 3, wherein, described first persistent phosphor
Glow peak is more than 5nm with the difference of the glow peak of described second persistent phosphor.
5. the light source cover as according to any one of Claims 1-4, wherein,
Described first persistent phosphor is the MAl containing rare earth element2O4, and containing rare earth unit
At least one in the ZnS of at least one in element, Cu and Cl, described M is Ca, Sr
Or Ba；
Described second persistent phosphor is the M that choosing freely contains rare earth element4Al14O25, containing dilute
The Sr of earth elements2Mg(Si2O7), containing rare earth element, the Y of Ti and Mg2O2S, containing Bi
CaS and containing Bi CaSrS composition group at least one, described M be Ca,
Sr or Ba.
6. light source cover as claimed in claim 5, wherein, described rare earth element is for choosing freely
In the group of Eu, Ce, Pr, Nd, Sm, Tb, Dy, Ho, Er, Tm, Yb and Lu composition
At least one.
7. light source cover as claimed in claim 6, wherein,
Described first persistent phosphor is the SrAl that choosing freely contains Eu and Dy2O4, containing Cu
ZnS and containing Cu and Cl ZnS composition group at least one,
Described second persistent phosphor is the Sr containing Eu and Dy4Al14O25, and containing Eu
Sr2Mg(Si2O7At least one in).
8. the light source cover as according to any one of claim 1 to 7, wherein, described cover structure
Part has been mixed into the two persistent phosphor.
9. the light source cover as according to any one of claim 1 to 8, wherein, at described cover
The two persistent phosphor it is configured with on the surface of component.
10. light source cover as claimed in claim 9, wherein, at the light source of described cover component
The two persistent phosphor it is configured with on the surface of side.
The 11. light source covers as described in claim 9 or 10, wherein, at described cover component
The layer containing the two persistent phosphor it is configured with on surface.
The 12. light source covers as described in claim 9 or 10, wherein, at described cover component
The layer containing described first persistent phosphor it is laminated with and containing described second twilight sunset fluorescence on surface
The layer of body.
13. light source as claimed in claim 12 covers, wherein, on the surface of described cover component
On, it is arranged alternately with the layer containing described first persistent phosphor in the in-plane direction and containing
State the layer of the second persistent phosphor.
14. light source as claimed in claim 12 covers, wherein,
The surface of described cover component is configured with duplexer,
Described duplexer comprises the layer containing described first persistent phosphor and containing described more than second
The layer of brightness fluorophor.
15. light sources as claimed in claim 14 covers, wherein, in the light source side of described cover
On surface, it is laminated with containing described more than first across the layer containing described second persistent phosphor
The layer of brightness fluorophor.
16. 1 kinds of illuminators, it is characterised in that
Comprise the light source cover according to any one of light source and claim 1 to 15,
Described light source cover configures in the way of covering described light source.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015061315A JP6528236B2 (en) | 2015-03-24 | 2015-03-24 | Light source cover and lighting device |
| JP2015-061315 | 2015-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106016173A true CN106016173A (en) | 2016-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610171945.9A Pending CN106016173A (en) | 2015-03-24 | 2016-03-24 | Cover used for light source and illumination device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6528236B2 (en) |
| CN (1) | CN106016173A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110922964A (en) * | 2019-12-07 | 2020-03-27 | 方显峰 | Method for exciting long afterglow material to mix light and emit light by electric light source, light mixing luminous body manufactured based on method and control method of light mixing luminous body |
| CN116410735A (en) * | 2021-12-30 | 2023-07-11 | 财团法人工业技术研究院 | Photoelectric conversion compound and photoelectric conversion composition comprising same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019129114A (en) * | 2018-01-26 | 2019-08-01 | パナソニックＩｐマネジメント株式会社 | Light-emitting body, light housing device, and lighting device |
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| CN1945109A (en) * | 2006-10-18 | 2007-04-11 | 李建明 | Long after-glow fluorescent lamp shade |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2016181415A (en) | 2016-10-13 |
| JP6528236B2 (en) | 2019-06-12 |
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Effective date of registration: 20200217 Address after: Tokyo, Japan Applicant after: Fluorescein lux Co.,Ltd. Address before: Tokyo, Japan Applicant before: NEC LIGHTING, Ltd. |
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Application publication date: 20161012 |