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CN102985854A - Light-blocking member for optical instrument - Google Patents

Light-blocking member for optical instrument Download PDF

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Publication number
CN102985854A
CN102985854A CN2011800340050A CN201180034005A CN102985854A CN 102985854 A CN102985854 A CN 102985854A CN 2011800340050 A CN2011800340050 A CN 2011800340050A CN 201180034005 A CN201180034005 A CN 201180034005A CN 102985854 A CN102985854 A CN 102985854A
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CN
China
Prior art keywords
light
blocking member
photomask
optical instrument
particulate
Prior art date
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Pending
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CN2011800340050A
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Chinese (zh)
Inventor
堀川晃
原田正裕
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Kimoto Co Ltd
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Kimoto Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/003—Light absorbing elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Diaphragms For Cameras (AREA)
  • Shutters For Cameras (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

Disclosed is a light-blocking member that is for an optical instrument and that has resilience even when made thin, and of which rupture, etc. of a film is difficult to arise. The light-blocking member for an optical element contains: a substrate that comprises a synthetic resin film; and a light-blocking film that is formed on at least one surface of the aforementioned substrate. The aforementioned light-blocking film is characterized by containing: a binder resin of which the hydroxyl value is at least 100 (mgKOH/g); carbon black; and microparticles of which the average particle size is less than 1 [mu]m. Also, the aforementioned microparticles are characterized by being inorganic microparticles.

Description

Light-blocking member for optical instrument
Technical field
The present invention relates to be used for the light-blocking member for optical instrument of the shutter, aperture parts etc. of various optical devices.
Background technology
In recent years, because to miniaturization, the light-weighted requirement of the various optical devices such as high-performance single lens reflex type camera, miniature camera, video camera, shutter or the aperture parts of the optical device that forms by metal material are substituted by plastic material just gradually.As the aperture of such plastic material, known have a light-proofness film (patent documentation 1,2) that forms the photomask contain carbon black, lubricant, particulate and adhesive resin at film substrate.
The prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 9-274218 communique
Patent documentation 2:WO2006/016555 communique
Summary of the invention
Invent problem to be solved
Above-mentioned light-proofness film since compare with the light-blocking member that is formed by metal material stiffness extremely a little less than, if so use this light-proofness film then not to be durable as shutter or the aperture parts of optical device, generation produces deformation by the contact site with other parts, deforms or damaged problem.Such problem is requiring to can be described as key subjects under the situation in recent years of slimming.
For this problem, also considered to make the method for the direct slimming of light-blocking member that is formed by metal material, if but use this light-blocking member as shutter or aperture parts, then easily owing to producing distortion with contacting of other parts.Because described distortion can not recover former state in nature metal material, so not handy in such light-blocking member.In addition, metal material is compared with plastic material, and cost is quite high.
Like this, even requirement slimming in the situation of not using metal material also has the light-blocking member for optical instrument of stiffness, the difficult breakage that produces film etc.
For the scheme of dealing with problems
The present inventors are for this problem, discovery is the light-blocking member that the above adhesive resin of 100 (mgKOH/g) and mean grain size are lower than the particulate of 1 μ m by being formed in the hydroxyl value that contains in the photomask as adhesive resin, even also have stiffness contacts also the breakage that is difficult for producing film etc. with other parts light-blocking member even can access slimming, thereby finish the present invention.
Namely, light-blocking member for optical instrument of the present invention, it is characterized in that, it is the light-blocking member for optical instrument that comprises the base material that is made of film of synthetic resin and be formed at the photomask at least single face of above-mentioned base material, and it is the particulate that 100 (mgKOH/g) above adhesive resin, carbon black and mean grain size are lower than 1 μ m that above-mentioned photomask contains hydroxyl value.
In addition, in the light-blocking member for optical instrument of the present invention, particulate is preferably inorganic particles.In addition, this inorganic particles is preferably calcium carbonate.
In addition, light-blocking member for optical instrument of the present invention, preferred photomask comprises silicon dioxide.
The effect of invention
According to foregoing invention, to contain hydroxyl value in the photomask be the particulate that the above adhesive resin of 100 (mgKOH/g) and mean grain size are lower than 1 μ m by making, even can make the light-blocking member that slimming also has stiffness, is difficult for producing the breakage etc. of film.
Description of drawings
Fig. 1 is that explanation is for the figure of the determinator of the stiffness of measuring light-blocking member for optical instrument.
Embodiment
Below, the embodiment of light-blocking member for optical instrument of the present invention (below, sometimes be also referred to as " light-blocking member ") is described.
Light-blocking member of the present invention comprises the base material that is made of film of synthetic resin and is formed at photomask at least single face of above-mentioned base material.It is the particulate that 100 (mgKOH/g) above adhesive resin, carbon black and mean grain size are lower than 1 μ m that this photomask contains hydroxyl value.
In addition, so-called mean grain size refers to laser diffraction formula particle size distribution device (such as, society of Shimadzu Seisakusho Ltd.: the median particle diameter (D50) of SALD-7000 etc.) measuring among the present invention.
As the base material that is consisted of by film of synthetic resin, can list the base material that is consisted of by polyester, ABS (acrylonitrile-butadiene-styrene (ABS)), polyimide, polystyrene, polycarbonate, acrylic acid, polyolefin, celluosic resin, polysulfones, polyphenylene sulfide, polyethersulfone, polyetheretherketone etc.Especially the suitable mylar that uses is considered particularly preferably drawn processing, the particularly mylar of biaxial stretch-formed processing from the aspect of physical strength, excellent in dimensional stability.
In addition, as base material, transparent base material can use certainly, also can use the expanded polyester film, contain the film of synthetic resin of the black pigments such as carbon black or other pigment.In this case, above-mentioned base material can be selected suitable base material according to purposes separately.For example, when using as light-blocking member, cause harmful effect owing in the film of synthetic resin part in parts cross section, by the light of the optically focused such as lens reflection being occured, so in the situation of the high light-proofness of needs, can use the film of synthetic resin that contains the black pigments such as carbon black, in other cases, can use film of synthetic resin transparent or foaming.
In the present embodiment, owing to the sufficient light-proofness that can be obtained by photomask self as light-blocking member, institute is so that when containing black pigment in the film of synthetic resin, as long as according to the visual degree that appears as black, be that the mode that optical concentration reaches about 3 contains film of synthetic resin.Therefore, contain black pigment in the film of synthetic resin to the limit of infringement as the physical property of base material, so can in the situation that the physical property that does not make film of synthetic resin changes, obtain at an easy rate owing to unlike in the past, making.
As the thickness of base material, preferred 4～50 μ m, particularly from the viewpoint of slimming, more preferably 4～38 μ m.In addition, from the viewpoint of raising with the cementability of photomask, also can carry out as required anchoring processing or corona treatment to base material.
Being formed at photomask at least single face of base material, to contain hydroxyl value be the particulate that 100 (mgKOH/g) above adhesive resin, carbon black and mean grain size are lower than 1 μ m.
Usually, if in adhesive resin, use mean grain size to be lower than the particulate of 1 μ m, then because particle diameter is little, so exist particulate that the tendency of aggegation occurs to each other.Like this, described particulate can't disperse equably in adhesive resin and unevenly exist.If form photomask by described material, then in photomask, form easily the low density part that exists of particulate, in photomask, form the part that deforms partly easily.Use certain hour if will possess the light-blocking member of this photomask, then produce flexural deformation by holding yielding part, so think and to say that not necessarily stiffness is strong.
On the other hand, be to contain the particulate that mean grain size is lower than 1 μ m in the above adhesive resin of 100 (mgKOH/g) to use if make hydroxyl value, then this particulate is subjected to the impact of the hydroxyl value of this adhesive resin can aggegation not occur partly and disperses equably.Thus, think that the dispersion balance that can be made as the photomask overall particle becomes suitable, even use as light-blocking member, also be difficult for producing partly flexural deformation, the light-blocking member that stiffness is strong.
Be the above adhesive resins of 100 (mgKOH/g) as hydroxyl value, can list poly-(methyl) acrylic resin, vibrin, polyvinyl acetate resins, Polyvinylchloride, polyvinyl butyral resin, cellulose-based resin, the polystyrene/polybutadiene resin, urethane resin, alkyd resin, acryl resin, unsaturated polyester resin, epoxy ester resin, epoxy resin, epoxy acrylate is resin, urethane acrylate is resin, polyester acrylate is resin, polyether acrylate is resin, phenolics, melamine is resin, the Urea Series resin, diallyl phthalate is thermoplastic resin or the heat-curing resins such as resin, can use their a kind or will mix use more than 2 kinds.
The hydroxyl value of adhesive resin is set as more than 100 (mgKOH/g).Be set as more than 100 (mgKOH/g) by the hydroxyl value with adhesive resin, thereby the particulate that makes as mentioned above mean grain size be lower than 1 μ m disperses in photomask equably, have stiffness even the photomask slimming also can be supported as light-blocking member integral body, be difficult for producing the light-blocking member of the breakage etc. of film.From the viewpoint of further performance stiffness, the hydroxyl value of adhesive resin is preferably more than 125 (mgKOH/g), more preferably more than 200 (mgKOH/g).On the other hand, as the upper limit, the viewpoint of filming and becoming fragile from preventing bending stress from reducing is preferably set to below 250 (mgKOH/g).
Hydroxyl value is that the containing ratio of the above adhesive resin of 100 (mgKOH/g) is preferably set in photomask more than 15 % by weight, more preferably is set as more than 20 % by weight.In photomask, be set as more than 15 % by weight by the containing ratio with above-mentioned adhesive resin, can prevent that the cementability of base material and photomask from reducing.On the other hand, the containing ratio of above-mentioned adhesive resin is preferably set in photomask below 50 % by weight, more preferably is set as below 45 % by weight, further is preferably set to below 40 % by weight.In photomask, be set as below 50 % by weight by the containing ratio with above-mentioned adhesive resin, can prevent that light-proofness from reducing.
The carbon black that contains in the photomask is used for making adhesive resin be colored as black and gives light-proofness, and gives electric conductivity and prevent charged by generation of static electricity.
In order to obtain sufficient light-proofness, below the preferred 1 μ m of the mean grain size of carbon black, more preferably be set as below the 0.5 μ m.
The containing ratio of carbon black is preferred 10 % by weight～50 % by weight in photomask, more preferably are set as 15 % by weight～45 % by weight.By in photomask, being set as more than 10 % by weight, can prevent that light-proofness and electric conductivity from reducing, by being set as below 50 % by weight, cementability or mar resistance improve, and can prevent that in addition the reduction of coating strength and cost from uprising.
In addition, reduce surperficial glossiness (mirror surface luster) from form the fine concavo-convex incident reflection of light that reduces by the surface at photomask, improve the viewpoint of the extinction when making light-blocking member and set out, also can contain inorganic particulate.As inorganic particulate, can list silicon dioxide, metasilicic acid magnesium aluminate, titanium dioxide etc., in them, from viewpoints such as the dispersiveness of particle, low costs, preferably use silicon dioxide.
The preferred 1 μ m of the mean grain size of inorganic particulate～10 μ m more preferably is set as 1 μ m～6 μ m.By being set as such scope, thereby form fine concavo-convexly on the surface of light-blocking member, can obtain extinction.
The containing ratio of inorganic particulate is preferred 0.5 % by weight～10 % by weight in photomask, more preferably are set as 0.5 % by weight～5 % by weight.By being set as in photomask more than 0.5 % by weight, extinction reduces thereby the glossiness (mirror surface luster) that can prevent the surface increases.On the other hand, by being set as below 10 % by weight, thereby can prevent that slip because of light-blocking member from producing coming off of inorganic particulate or light-blocking member self produces scar, can prevent from causing the reduction of sliding.
Particularly in the situation of demanding light-proofness or electric conductivity, the containing ratio of inorganic particulate further preferably is set as photomask below 5 % by weight from above-mentioned scope.Even the inorganic particulate that uses in the present embodiment is owing to also can obtain high extinction on a small quantity as mentioned above, so by being set as below 5 % by weight, can obtain sufficient extinction, and the containing ratio of carbon black, particulate described later is increased, can in the situation that does not reduce stiffness, improve the physical property such as light-proofness, electric conductivity.
The particulate that the mean grain size that contains in the photomask is lower than 1 μ m is by being that the above adhesive resin of 100 (mgKOH/g) is used in combination with hydroxyl value as mentioned above, the dispersion balance that can be made as the photomask overall particle becomes suitable, even use as light-blocking member, also be difficult for producing partly flexural deformation, the light-blocking member that stiffness is strong.In addition, can also improve the hardness of filming when making photomask.And then, owing to be difficult for producing partly flexural deformation, so can make the light-blocking member that is difficult for causing thermal deformation.
As such particulate, can list the lubrication prescription such as the hydrocarbon system such as Tissuemat E, paraffin; The fatty acid series lubrication prescription such as stearic acid, 12-hydroxy stearic acid; The acid amides such as oleamide, erucyl amide is lubrication prescription; The esters such as glyceryl monostearate are lubrication prescription; The material that kollags such as the alcohol particle that to be the fluororesin particles such as lubrication prescription, silicone resin particle, teflon wax, acryl resin particle, crosslinked acrylic resin particle, cross-linked polystyrene resin particle etc. be made of resin particle or metallic soap, talcum, molybdenum disulfide, calcium carbonate, silicon dioxide, aluminium hydroxide, zirconia, barium sulphate, titanium dioxide etc. are made of inorganic particles.In them, the hardness of particle is high and help the viewpoint of the raising of stiffness to set out on the whole, particularly preferably uses the material that is made of inorganic particles.And then in inorganic particles, then stronger as the light-blocking member stiffness if use calcium carbonate, so preferred.These particulates can use a kind or will be more than 2 kinds mix and use.In addition, cited silicon dioxide is different from the aforesaid silicon dioxide that contains in order to improve extinction here.
The containing ratio of particulate is preferably set to 2.5 % by weight～40 % by weight in photomask, more preferably be set as 10 % by weight～35 % by weight.By in photomask, being set as more than 2.5 % by weight, can further strengthen stiffness, by being set as below 40 % by weight, can improve the relative content of carbon black, can prevent when obtaining stiffness that light-proofness from reducing.
In addition, proportional with respect to containing of above-mentioned adhesive resin about above-mentioned particulate, with respect to above-mentioned adhesive resin 100 weight portions, preferably contain the above-mentioned particulate of 30～200 weight portions, further be preferably set to 50～150 weight portions.Such contain proportionally by being set as, can make the light-blocking member that the dispersion balance further improves, stiffness is more excellent of the above-mentioned particulate of keeping in light-proofness and the photomask.
Be formed in the photomask at least single face of base material, so long as do not damage the situation of function of the present invention, can contain the various adjuvants such as fire retardant, antiseptic, mildewproof agent, antioxidant, plastifier, levelling agent, flow modifier, defoamer, spreading agent.
The preferred 3 μ m of the thickness of photomask～30 μ m more preferably are set as 5 μ m～20 μ m.By being set as more than the 3 μ m, can prevent from producing pin hole etc. in the photomask, can access sufficient light-proofness.In addition, by being set as below the 30 μ m, can prevent from cracking in the photomask.
The light-blocking member for optical instrument of present embodiment can be by on the single face or two sides of base material, utilize dip coated, roller coat, rod to be coated with, mould is coated with, the in the past known coating process coating such as scraper for coating, airblade coating is as described above contains the photomask coating fluid that hydroxyl value is 100 (mgKOH/g) above adhesive resin, carbon black and the mean grain size particulate that is lower than 1 μ m etc., after making its drying, heating as required pressurization and waiting and obtain.The solvent of coating fluid can make the potpourri of water or organic solvent, water and organic solvent etc.
As mentioned above, the light-blocking member for optical instrument of present embodiment is owing at least single face at base material comprises specific photomask, so kept the physical property of the photomask of light-proofness, electric conductivity etc., therefore suitable shutter as optical devices such as high-performance single lens reflex type camera, miniature camera, video camera, mobile phone, projectors, aperture parts use.
Particularly the photomask of present embodiment is the particulate that the above adhesive resin of 100 (mgKOH/g) and mean grain size are lower than 1 μ m owing to containing hydroxyl value, so particulate is disperseed equably, even therefore can make the light-blocking member that slimming also has stiffness, the difficult breakage that produces film etc. in photomask.Consequently, be suitable for especially in the shutter with the mobile phone of camera, aperture parts etc. of in recent years special requirement slimming.And then, owing to be difficult for producing partly flexural deformation, so can make the light-blocking member that is difficult for causing thermal deformation.
Embodiment
Below, by embodiment the present invention is further described.In addition, " part ", " % " then are weight basis as long as no special instructions.
1. the making of light-blocking member
[embodiment 1]
Black pet film (LumirrorX30: Dong Li company) as base material used thickness 25 μ m, the mode that thickness on the two sides of this base material during according to drying reaches respectively 10 μ m is coated with photomask that method is coated with following prescription with coating fluid and carries out drying by rod respectively and forms photomask, has made the light-blocking member for optical instrument of embodiment 1.
The photomask coating fluid of＜embodiment 1 〉
Figure BDA00002717911600071
Figure BDA00002717911600081
[embodiment 2]
The photomask that uses among the embodiment 1 is with in the coating fluid, polyester polyol is changed to polyester polyol (BURNOCK J-517:DIC company, hydroxyl value 140 (mgKOH/g), solid constituent 70%), the addition of isocyanates is set as 6.56 weight portions, in addition similarly to Example 1, made the light-blocking member for optical instrument of embodiment 2.
[embodiment 3]
The photomask that uses among the embodiment 1 is with in the coating fluid, polyester polyol is changed to polyester polyol (BURNOCK D-144-65BA:DIC company, hydroxyl value 100 (mgKOH/g), solid constituent 65%) and addition is set as 10.42 weight portions, further the addition with isocyanates is set as 5.04 weight portions, in addition similarly to Example 1, made the light-blocking member for optical instrument of embodiment 3.
[embodiment 4]
The photomask that uses among the embodiment 1 is with in the coating fluid, particulate (calcium carbonate) is changed to particulate (titanium dioxide, A-100: the former industry of stone society, mean grain size 0.15 μ m), in addition similarly to Example 1, made the light-blocking member for optical instrument of embodiment 4.
[embodiment 5]
The photomask that uses among the embodiment 1 is with in the coating fluid, particulate (calcium carbonate) is changed to particulate (acrylic particles, Chemisnow MP-1600: combine and grind chemical society, mean grain size 0.8 μ m), in addition similarly to Example 1, made the light-blocking member for optical instrument of embodiment 5.
[comparative example 1]
The photomask that uses among the embodiment 1 is with in the coating fluid, polyester polyol is changed to acrylic polyol (ACRYDIC A-801P:DIC company, hydroxyl value 50 (mgKOH/g), solid constituent 50%) and addition is set as 13.55 weight portions, the addition of isocyanates is set as 3.28 weight portions, in addition similarly to Example 1, made the light-blocking member for optical instrument of comparative example 1.
[comparative example 2]
The photomask that uses among the embodiment 1 is with in the coating fluid, particulate (calcium carbonate) is changed to particle (barium sulphate, BMH: Sakai chemical industrial company, mean grain size 2.5 μ m), in addition similarly to Example 1, made the light-blocking member for optical instrument of comparative example 2.
2. estimate
Light-blocking member for optical instrument for obtaining in as mentioned above embodiment 1～5 and the comparative example 1～2 carries out the evaluation of physical property by following method.With the results are shown in the table 1 separately.
(1) light-proofness
For the light-blocking member for optical instrument that obtains in above-described embodiment 1～5 and the comparative example 1～2, use optical concentration meter (TD-904:GretagMacbeth company) to measure optical concentration according to JIS K7651:1988.Optical concentration being surpassed 4.0, reach the concentration person that can't measure the zone and be made as " zero ", is that 4.0 following persons are made as " * " with optical concentration.In addition, measure use UV color filter.Measurement result is shown in Table 1.
(2) stiffness
By the light-blocking member for optical instrument that obtains in embodiment 1～5 and the comparative example 1～2, gather the embodiment 1～5 of wide 1.5cm and long 20cm and the sample of comparative example 1～2, make cylindric around 2 weeks along its length this sample respectively, position centered by being present in of this sample cylindraceous, the most surperficial sample end limit became with the bonding wide 1.5cm of polyester tape (Mi Qibang company) and long 1.8cm so that this sample is not overlapped into three layers, making width (highly) 1.5cm, the embodiment cylindraceous 1～5 of diameter 3.2cm and the sample of comparative example 1～2.
Then, prepare that commercially available (BX3200D: measurement section 3 society of Shimadzu Seisakusho Ltd.) and top fixed part 2 consist of and the gap of above-mentioned measurement section 3 and above-mentioned top fixed part is the such determinator 10 of Fig. 1 of 2cm by electronic balance by comprising.In the gap of the measurement section 3 of described determinator 10 and top fixed part 2, the mode that contacts with measurement section 3 and the top fixed part 2 of this measurement mechanism 10 according to this side cylindraceous loads the embodiment cylindraceous 1～5 of above-mentioned diameter 3.2cm and the sample 1 of comparative example 1～2, the metered amount based on the electronic balance of the measurement section 3 behind 10 seconds of elastic force of working sample 1.Be that the above person of 1g is made as " ◎ " with result, the metered amount measured, with metered amount be more than the 0.7g～be lower than 1g person to be made as " zero ", metered amount is lower than 0.7g person is made as " * ".Measurement result is shown in Table 1.
(3) permanance
The light-blocking member for optical instrument that obtains in use embodiment 1～5 and the comparative example 1～2 makes its work 20,000 5 thousand times and has or not distortion or damaged by this light-blocking member for optical instrument of Visual Confirmation as the aperture parts of camera.To be made as " zero " less than distortion or damaged person, will have distortion or damaged person to be made as " * ".In addition, for having distortion or damaged light-blocking member, distortion or damaged person will not be made as " ◎ " yet in the time of will making it again work after 20,000 5 thousand times by Visual Confirmation.Measurement result is shown in Table 1.
(4) thermal deformation
Preparation is provided with the light-blocking member for optical instrument of the photomask of above-described embodiment 1～5 and comparative example 1～2 at a face of base material.Severing becomes in length and breadth 10cm * 10cm, leaves standstill in 80 ℃, 5 minutes environment, measures the amount of curl of end.With four jiaos of amount of curl add up to more than the 0mm～be lower than 30mm person to be made as " zero ", will be made as " * " for the above person of 30mm.Measurement result is shown in Table 1.
(5) cementability
Measure the cementability of the photomask of the light-blocking member for optical instrument that obtains in above-mentioned experimental example 1～5 and the comparative example 1～2 and base material and estimate according to the lattice adhesive tape method of drawing among the JIS 5600-5-6.An area of drawing the lattice part is peeled off 10% above person be made as " * ", will peel off more than 5% and be lower than 10% and be made as " △ ", will peel off and be lower than 5% and be made as " zero ".
[table 1]
Light-proofness Stiffness Permanance Thermal deformation Cementability
Embodiment
1 ○ ◎ ◎ ○ ○
Embodiment 2 ○ ◎ ○ ○ ○
Embodiment 3 ○ ○ ○ ○ ○
Embodiment 4 ○ ◎ ○ ○ ○
Embodiment 5 ○ ○ ○ ○ ○
Comparative example 1 ○ × × ○ ×
Comparative example 2 ○ × × × △
As by known to the result of table 1, the light-blocking member for optical instrument that obtains among the embodiment 1～5 comprises the base material that is made of film of synthetic resin and is formed at photomask at least single face of above-mentioned base material, be the above adhesive resin of 100 (mgKOH/g), carbon black, silicon dioxide, reach the particulate that mean grain size is lower than 1 μ m because this photomask contains hydroxyl value, even so can make also strong light-blocking member of performance light-proofness and slimming stiffness, because excellent in te pins of durability, so can make the light-blocking member of the breakage that is difficult for producing film etc. etc.
Particularly embodiment 1,2 light-blocking member for optical instrument are because the hydroxyl value of adhesive resin is more than 125 (mgKOH/g), so it is high especially that stiffness becomes, and then the light-blocking member for optical instrument of embodiment 1 is because the hydroxyl value of adhesive resin is more than 200 (mgKOH/g), and use calcium carbonate as particulate, so stiffness is high especially, it is high especially that permanance also becomes.
On the other hand, the light-blocking member for optical instrument of comparative example 1 is owing to use hydroxyl value to be lower than the adhesive resin of 100 (mgKOH/g), so particulate does not disperse equably in photomask, stiffness dies down.In addition, cause thus permanance also to become not enough.
In addition, the light-blocking member for optical instrument of comparative example 2 is because the use mean grain size is the above particle of 1 μ m, so particulate disperses equably in photomask, stiffness is poor.In addition, cause thus permanance also to become not enough.
The light-blocking member for optical instrument that obtains among the embodiment 1～5 is the above adhesive resin of 100 (mgKOH/g), carbon black, silicon dioxide, reaches the particulate that mean grain size is lower than 1 μ m owing to this photomask contains hydroxyl value, so whole as photomask, the dispersion balance of particulate becomes suitable, also be difficult for producing partly flexural deformation even be provided with at the single face of base material as light-blocking member in the situation of photomask, be difficult for causing thermal deformation.
The light-blocking member for optical instrument that obtains in the comparative example 1 is because the pigment ratio in this photomask is high, so be difficult for causing thermal deformation because of adhesive resin.But, because pigment ratio height or particulate disperse equably, thus with the cementability variation of base material.
Although the light-blocking member for optical instrument that obtains among the pigment ratio in this photomask of the light-blocking member for optical instrument that obtains in the comparative example 2 and the embodiment 1 is identical, but owing to do not contain the particulate that mean grain size is lower than 1 μ m, so middle particulate does not disperse equably filming, produce partly flexural deformation, cause thermal deformation.In addition, with the cementability of base material compare with embodiment 1 also poor.
Symbol description
1 ... light-blocking member for optical instrument of the present invention
2 ... the top fixed part
3 ... measurement section
10 ... determinator

Claims (4)

1. a light-blocking member for optical instrument is characterized in that, it is the light-blocking member for optical instrument that comprises the base material that is made of film of synthetic resin and be formed at the photomask at least single face of described base material,
It is the particulate that 100mgKOH/g above adhesive resin, carbon black and mean grain size are lower than 1 μ m that described photomask contains hydroxyl value.
2. light-blocking member for optical instrument according to claim 1 is characterized in that,
Described particulate is inorganic particles.
3. light-blocking member for optical instrument according to claim 2 is characterized in that,
Described particulate is calcium carbonate.
4. each described light-blocking member for optical instrument is characterized in that according to claim 1～3,
Described photomask contains silicon dioxide.
CN2011800340050A 2010-07-09 2011-06-29 Light-blocking member for optical instrument Pending CN102985854A (en)

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JP2010-156509 2010-07-09
JP2010156509 2010-07-09
PCT/JP2011/064866 WO2012005147A1 (en) 2010-07-09 2011-06-29 Light-blocking member for optical instrument

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CN102985854A true CN102985854A (en) 2013-03-20

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CN (1) CN102985854A (en)
TW (1) TWI513580B (en)
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JP5984667B2 (en) 2016-09-06
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TW201228829A (en) 2012-07-16
JPWO2012005147A1 (en) 2013-09-02
TWI513580B (en) 2015-12-21

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