WO2014129200A1 - Élément optique composite - Google Patents

Élément optique composite Download PDF

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Publication number
WO2014129200A1
WO2014129200A1 PCT/JP2014/000911 JP2014000911W WO2014129200A1 WO 2014129200 A1 WO2014129200 A1 WO 2014129200A1 JP 2014000911 W JP2014000911 W JP 2014000911W WO 2014129200 A1 WO2014129200 A1 WO 2014129200A1
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WO
WIPO (PCT)
Prior art keywords
resin material
lens
optical element
liquid crystalline
resin
Prior art date
Application number
PCT/JP2014/000911
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English (en)
Japanese (ja)
Inventor
小林　信幸
Original Assignee
パナソニック株式会社
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Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2014129200A1 publication Critical patent/WO2014129200A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses

Definitions

  • the present disclosure relates to a composite optical element.
  • optical materials in which inorganic fine particles are dispersed in a matrix material such as a resin are known. Techniques for realizing the characteristics are known.
  • Patent Document 1 discloses a material composition including antimony-doped tin oxide particles, an organic compound having one or more polymerizable functional groups in one molecule, and a polymerization initiator, and an optical element using the material composition. ing.
  • the present disclosure is a hybrid lens in which a resin lens is laminated on a glass lens, and provides a composite optical element having a desired small anomalous dispersion.
  • the composite optical element in the present disclosure is: A glass lens, and a resin lens laminated on the glass lens,
  • the resin lens is formed of a composite material containing a resin material and a liquid crystalline resin material dispersed in the resin material,
  • the amount of the liquid crystalline resin material is 30 parts by weight or less with respect to 100 parts by weight of the resin material.
  • the composite optical element in the present disclosure has a desired small anomalous dispersion.
  • FIG. 1 is a schematic configuration diagram of a hybrid lens according to Embodiment 1, which is an example of a composite optical element.
  • FIG. 2 is a schematic view of a composite material for forming a resin lens constituting the hybrid lens according to Embodiment 1.
  • FIG. 3 is a schematic explanatory diagram illustrating a manufacturing process of the hybrid lens according to the first embodiment.
  • FIG. 1 is a schematic configuration diagram of a hybrid lens according to the first embodiment.
  • the hybrid lens 10 includes a first lens 11 and a second lens 12.
  • the hybrid lens 10 is an example of a composite optical element.
  • the first lens 11 is an example of a glass lens and is made of a glass material.
  • the first lens 11 is a biconvex lens.
  • the second lens 12 is an example of a resin lens and is formed of a composite material.
  • the second lens 12 is laminated on one optical surface of the first lens 11.
  • FIG. 2 is a schematic view of a composite material for forming a resin lens constituting the hybrid lens according to Embodiment 1, and is a drawing for explaining the second lens 12 in detail.
  • the second lens 12 is made of a composite material 34.
  • the composite material 34 includes a resin material 31 as a matrix material and inorganic fine particles 32, and further a liquid crystalline resin material 33 is added.
  • the refractive index of the inorganic fine particles 32 differs depending on the material, and there are those having a refractive index higher than that of the resin material 31 and those having a refractive index lower than that of the resin material 31. Although materials may be properly used depending on the optical characteristics required for the second lens 12, it is beneficial to use a material having a refractive index higher than that of the resin material 31 as the inorganic fine particles 32.
  • the refractive index of the resin lens formed from the composite material 34 in which the inorganic fine particles 32 are dispersed in the resin material 31, that is, the second lens 12 is adjusted by appropriately adjusting the type, particle diameter, amount, and the like of the inorganic fine particles 32. However, it is possible to use only the resin material 31 without dispersing the inorganic fine particles 32.
  • Examples of the material of the inorganic fine particles 32 include metal oxides and metal fluorides.
  • Examples of the metal oxide include silicon oxide, zirconium oxide, titanium oxide, zinc oxide, aluminum oxide, yttrium oxide, barium titanate, europium oxide, magnesium oxide, niobium oxide, tantalum oxide, tungsten oxide, hafnium oxide, and indium oxide. , Indium phosphate, tin oxide, indium tin oxide, cerium oxide, barium sulfate, gadolinium oxide, lanthanum oxide, and the like. Silicon oxide includes those having voids formed therein, such as porous silica.
  • metal fluoride examples include magnesium fluoride, cerium fluoride, lanthanum fluoride, niobium fluoride, yttrium fluoride, and the like.
  • the inorganic fine particles 32 generally include primary particles 32a and secondary particles 32b formed by aggregating a plurality of the primary particles 32a. Therefore, “the inorganic fine particles 32 are uniformly dispersed in the resin material 31” means that the primary particles 32 a and the secondary particles 32 b of the inorganic fine particles 32 are not unevenly distributed at specific positions in the composite material 34. It is uniformly dispersed. In order not to impair the translucency as an optical material, it is beneficial that the dispersibility of the particles is good. For this purpose, it is beneficial that the inorganic fine particles 32 are composed only of the primary particles 32a.
  • the particle diameter of the inorganic fine particles 32 is important.
  • the composite material 34 in which the inorganic fine particles 32 are dispersed in the resin material 31 can be regarded as a homogeneous medium having no refractive index variation. Therefore, it is beneficial that the particle diameter of the inorganic fine particles 32 is not larger than the wavelength of visible light. Since visible light has a wavelength in the range of 400 to 700 nm, the particle diameter of the inorganic fine particles 32 is beneficially 400 nm or less.
  • the particle diameter of the inorganic fine particles 32 is larger than 1 ⁇ 4 of the wavelength of light, the translucency of the composite material 34 may be impaired by Rayleigh scattering. Therefore, in order to realize high translucency in the visible light region, it is beneficial that the particle diameter of the inorganic fine particles 32 is 100 nm or less. However, if the particle size of the inorganic fine particles 32 is less than 1 nm, fluorescence may be generated when the inorganic fine particles 32 are made of a material that exhibits a quantum effect, which is a characteristic of the optical component formed from the composite material 34. May be affected.
  • the effective particle size of the inorganic fine particles 32 is beneficially in the range of 1 to 100 nm, and more advantageously in the range of 1 to 50 nm.
  • the particle diameter of the inorganic fine particles 32 is 20 nm or less, the effect of Rayleigh scattering is extremely small, and the translucency of the composite material 34 is particularly high, which is further beneficial.
  • the amount of the inorganic fine particles 32 is not particularly limited, and may be appropriately adjusted according to the target resin lens, that is, the optical characteristics such as the refractive index of the second lens 12.
  • the resin material 31 is 100 parts by weight. It is beneficial to be from 1 to 30 parts by weight.
  • a resin having high translucency can be used from resins such as a thermoplastic resin, a thermosetting resin, and an energy ray curable resin.
  • resins such as a thermoplastic resin, a thermosetting resin, and an energy ray curable resin.
  • acrylic resin methacrylic resin such as polymethyl methacrylate; epoxy resin; polyester resin such as polyethylene terephthalate, polybutylene terephthalate and polycaprolactone; polystyrene resin such as polystyrene; olefin resin such as polypropylene; polyamide resin such as nylon; polyimide Polyimide resin such as polyetherimide; polyvinyl alcohol; butyral resin; vinyl acetate resin; alicyclic polyolefin resin and the like can be used.
  • engineering plastics such as polycarbonate, liquid crystal polymer, polyphenylene ether, polysulfone, polyethersulfone, polyarylate, and amorphous polyolefin may be used. Furthermore, these mixtures and copolymers, and these modified resins can also be used.
  • the resin material 31 is advantageously composed of at least one of (meth) acrylate polymerizable compounds represented by the following chemical formulas (1) to (54), for example.
  • (meth) acryl means “acryl” or “methacryl”.
  • the composite material 34 is composed of the resin material 31 as the matrix material and the inorganic fine particles 32, and the liquid crystalline resin material 33 is further added.
  • the liquid crystalline resin material 33 is a compound having liquid crystallinity that lowers light scattering properties, particularly reduces absorption characteristics in the short wavelength region and reduces anomalous dispersion. From the viewpoint that such an effect is large, examples of the liquid crystalline resin material 33 include a compound having two or more aromatic rings in the molecular structure, a compound having a CN group in the molecular structure, and a methylene group in the molecular structure. It is beneficial to use a compound having 4 or more of
  • the liquid crystalline resin material 33 is advantageously a compound represented by the following chemical formulas (55) to (61), for example.
  • the composite material 34 is solidified, and it becomes difficult to obtain the target resin lens, that is, the second lens 12. 30 parts by weight or less, and 28 parts by weight or less is beneficial. Moreover, when the amount of the liquid crystalline resin material 33 is too small, the effect of reducing the anomalous dispersion by reducing the light scattering property and reducing the absorption characteristics particularly in the short wavelength region is not sufficiently exhibited.
  • the resin material 31 is advantageously 2 parts by weight or more with respect to 100 parts by weight.
  • the type of the polymerization initiator is not particularly limited and may be appropriately selected according to the type of the resin material 31 to be used. For example, it is beneficial to use a hydroxyketone compound having a weight average molecular weight of 150 to 2000.
  • the amount of the polymerization initiator is not particularly limited, and for example, it is beneficial to be 1 to 5 parts by weight with respect to 100 parts by weight of the resin material 31.
  • the anomalous dispersion ⁇ PgF is a deviation between a point on the standard line of normal dispersion glass corresponding to the Abbe number ⁇ d in the d-line (wavelength 588 nm) of each material and the partial dispersion ratio PgF of the material.
  • the partial dispersion ratio PgF is defined by the following formula (b).
  • ng the refractive index of the material at the g-line (wavelength 436 nm)
  • nF refractive index of material at F-line (wavelength 486 nm)
  • nC Refractive index at the C-line (wavelength 656 nm) of the material.
  • the resin lens according to the first embodiment that is, the second lens 12 satisfies the following condition (a).
  • a prism coupler manufactured by Metricon, MODEL 2010
  • the resin material 31 constituting the composite material 34 is an ultraviolet curable resin.
  • FIG. 3 is a schematic explanatory diagram illustrating a manufacturing process of the hybrid lens according to the first embodiment.
  • the first lens 11 is molded.
  • the 1st lens 11 which is an example of a glass lens
  • the 1st lens 11 is shape
  • the dispenser 50 is used to discharge the composite material 34 onto the molding surface of the molding die 51.
  • the first lens 11 is placed from above the composite material 34 and spread until the composite material 34 has a predetermined thickness. Then, the mold 51 is placed on a turntable (not shown) and rotated.
  • ultraviolet rays are irradiated from above the first lens 11 with a light source 52 to cure the composite material 34, whereby a resin lens is formed on the first lens 11 which is a glass lens.
  • the hybrid lens 10 which is a composite optical element in which the second lens 12 is laminated is obtained.
  • the first embodiment has been described as an example of the technique disclosed in the present application.
  • the technology in the present disclosure is not limited to this, and can also be applied to an embodiment in which changes, replacements, additions, omissions, and the like are appropriately performed.
  • the resin material A After mixing at 1 (weight ratio), 3 parts by weight of Irgacure 184 (manufactured by BASF, 1-hydroxycyclohexyl phenyl ketone, weight average molecular weight 204) was added as a polymerization initiator with respect to 100 parts by weight of the resin material A.
  • a composite material containing the resin material A to which the polymerization initiator is added and 10 parts by weight of ZrO 2 fine particles (particle diameter: 10 nm) with respect to 100 parts by weight of the resin material A is represented by the chemical formula (55) 3 parts by weight of the compound represented by formula (A) is added to and mixed with 100 parts by weight of resin material A, and then UV light (80 mW / cm 2 ⁇ 90 sec) is used with a UV irradiation apparatus (US-9, SP-9). ) To cure the composite material, and a resin lens sample (thickness 50 ⁇ m) was produced.
  • samples were prepared in the same procedure.
  • Example 1 As shown in Table 1, the sample of Example 1 exhibited a small positive anomalous dispersion satisfying the condition (a). Therefore, it was found that the sample of Example 1 is applicable to a hybrid lens.
  • Example 2 A sample of Example 2 was prepared in the same manner as in Example 1 except that 27 parts by weight of the liquid crystalline resin material was added to 100 parts by weight of the resin material A in Example 1.
  • Example 2 As shown in Table 1, the sample of Example 2 exhibited negative anomalous dispersion satisfying the condition (a). Therefore, it was found that the sample of Example 2 is applicable to a hybrid lens.
  • Example 3 In Example 1, the liquid crystalline resin material was changed to the compound represented by the chemical formula (56), and the polymerization initiator was ESACURE KIP150 (manufactured by Lamberti, Oligo [2-hydroxy-2-methyl-1- [4- ( The sample of Example 3 was prepared in the same manner as in Example 1 except that 1-methylvinyl) phenyl] propanone ”and weight average molecular weight 550) were used.
  • Example 3 As shown in Table 1, the sample of Example 3 exhibited a small positive anomalous dispersion satisfying the condition (a). Therefore, it was found that the sample of Example 3 is applicable to a hybrid lens.
  • Example 4 In Example 1, the resin material A is changed to the compound represented by the chemical formula (49), the liquid crystalline resin material is changed to the compound represented by the chemical formula (56), and the liquid crystalline resin material is changed to 100 weight of the resin material A.
  • a sample of Example 4 was produced in the same manner as in Example 1 except that 7 parts by weight was added to the part.
  • the sample of Example 4 showed a small positive anomalous dispersibility that satisfies the condition (a). Therefore, it was found that the sample of Example 4 is applicable to a hybrid lens.
  • Example 5 a sample of Example 5 was produced in the same manner as in Example 4 except that 12 parts by weight of the liquid crystalline resin material was added to 100 parts by weight of the resin material A.
  • Example 5 As shown in Table 1, the sample of Example 5 exhibited negative anomalous dispersion satisfying the condition (a). Therefore, it was found that the sample of Example 5 is applicable to a hybrid lens.
  • Example 1 a sample of Comparative Example 1 was produced in the same manner as Example 1 except that the liquid crystalline resin material was not used.
  • Comparative Example 2 A sample of Comparative Example 2 was prepared in the same manner as in Example 1 except that the resin material A was changed to the compound represented by the chemical formula (49) and no liquid crystalline resin material was used.
  • Example 3 In Example 1, the resin material A is changed to the compound represented by the chemical formula (49), the liquid crystalline resin material is changed to the compound represented by the chemical formula (56), and the liquid crystalline resin material is changed to 100 weight of the resin material A.
  • a sample of Comparative Example 3 was prepared in the same manner as in Example 1 except that 35 parts by weight was added to parts.
  • the present disclosure can be suitably used as an optical element such as a lens or a prism.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Lenses (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention porte sur un élément optique composite qui comporte une lentille en verre et une lentille de résine qui est stratifiée sur la lentille en verre. La lentille de résine est formée d'une matière composite qui contient une matière de résine et une matière de résine à cristaux liquides dispersée dans la matière de résine. La quantité de la matière de résine à cristaux liquides est de 30 parties en poids au maximum par rapport à 100 parties en poids de la matière de résine.
PCT/JP2014/000911 2013-02-25 2014-02-21 Élément optique composite WO2014129200A1 (fr)

Applications Claiming Priority (2)

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JP2013-034193 2013-02-25
JP2013034193A JP2016095324A (ja) 2013-02-25 2013-02-25 複合光学素子

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WO2014129200A1 true WO2014129200A1 (fr) 2014-08-28

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63163321A (ja) * 1986-12-25 1988-07-06 Shimadzu Corp コンタクトレンズ
JPH06306181A (ja) * 1993-03-12 1994-11-01 Agency Of Ind Science & Technol 有機系光学薄膜の製造法とその装置
JP3143288U (ja) * 2008-05-02 2008-07-17 正 吉田 多色性光学積層体
JP2010001353A (ja) * 2008-06-19 2010-01-07 Kawamura Inst Of Chem Res 液晶性化合物を包含する有機無機複合体

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63163321A (ja) * 1986-12-25 1988-07-06 Shimadzu Corp コンタクトレンズ
JPH06306181A (ja) * 1993-03-12 1994-11-01 Agency Of Ind Science & Technol 有機系光学薄膜の製造法とその装置
JP3143288U (ja) * 2008-05-02 2008-07-17 正 吉田 多色性光学積層体
JP2010001353A (ja) * 2008-06-19 2010-01-07 Kawamura Inst Of Chem Res 液晶性化合物を包含する有機無機複合体

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