Glass, glass element and light filter

Abstract

Provided is a glass having excellent transmission characteristics in the visible light region, excellent absorption characteristics in the near-infrared region, and excellent weather resistance. The cation components of the glass comprise: 62-75% of P < 5 + >; 1-10% of Al < 3 + >; cu < 2 + >: 4-16%; na < + >: 4-16%; 0.5 to 10 percent of Ba < 2 + >; 0-5% of Zn < 2 + >; wherein P < 5 + > / (Al < 3 + > + Zn < 2 + >) is 6.5-30.0. Through reasonable component design, the obtained glass has an excellent transmission characteristic in a visible light region, has an excellent absorption characteristic in a near-infrared region, and has excellent weather resistance.

Description

TECHNICAL FIELD

[0001] The present application relates to a glass, and particularly to a glass having excellent weather resistance, and a glass element and optical filter made of the same. BACKGROUND

[0002] In recent years, wearable devices typified by smartphones, action cameras, VR (Virtual Reality) devices, AR (Augmented Reality) devices, and the like have rapidly spread. The visible light wavelength that the human eye can perceive is between 400 and 700 nm, and thus, by using a filter that absorbs near-infrared light, an image close to the luminosity factor of the human eye can be obtained. As the demand for color sensitivity correction filters has been increasing, higher requirements have been placed on glasses used to manufacture such filters, and such glasses are required to have excellent transmission properties in the visible light region and excellent absorption properties in the near-infrared region. In addition to being used in conventional environments, the above-mentioned devices are also used in various complex and extreme environments, such as high temperature and high humidity environments. Therefore, glasses mounted in these devices are required to have excellent weather resistance. Filters that adjust the visual sensitivity of cameras often use (fluoro) phosphate glasses containing copper ions, but (fluoro) phosphate glasses are known to have poor weather resistance. Specifically, in a high temperature and high humidity atmosphere, the phosphate network structure in the glass is broken due to moisture in the atmosphere, and a phenomenon occurs in which liquid-like phosphoric acid is dissolved out of the glass surface. Furthermore, the dissolved phosphoric acid reacts with the glass, or the portions where the phosphate network is missing are crystallized, and the like, thereby causing the glass surface to deteriorate, which severely affects the service life of the glass. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a glass having excellent transmission properties in the visible light region, excellent absorption properties in the near-infrared region, and excellent weather resistance.

[0004] The technical solution adopted by the present application to solve the technical problem is:

[0005] (1) A glass, in terms of mole percent, the cation component contains: P 5+ : 62 to 75%; Al 3+ : 1 to 10%; Cu 2+ : 4 to 16%; Na + : 4 to 16%; Ba 2+ : 0.5 to 10%; Zn 2+ : 0 to 5%; wherein P 5+ / (Al 3+ + Zn 2+ ) is 6.5 to 30.0.

[0006] (2) The glass according to (1), wherein the cation component further comprises, in terms of mole percent: Li + : 0 to 9.5%; and / or K + : 0 to 8%; and / or Mg 2+ : 0 to 8%; and / or Ca 2+ : 0 to 8%; and / or Sr 2+ : 0 to 8%; and / or Ln 3+ : 0 to 5%; and / or Si 4+ : 0 to 3%; and / or B 3+ : 0 to 3%; and / or Zr 4+ : 0 to 3%; and / or Sb 3+ : 0 to 1%; and / or Sn 4 + : 0 to 1%; and / or Ce 4+ : 0 to 1%, the Ln 3+ being one or more of La 3+ , Gd 3+ , Y 3+ , Yb 3+ .

[0007] (3) A glass comprising, in terms of mole percent, P 5+ , Al 3+ , Cu 2+ , Na + , and Ba 2+ , and 0 to 5% of Zn 2+ , wherein P 5+ / (Al 3+ + Zn 2+ ) is 6.5 to 30.0, and the weather resistance of the glass is Class 3 or more.

[0008] (4) The glass according to (3), wherein the cation component comprises, in terms of mole percent: P 5+ : 62 to 75%; and / or Al 3+ : 1 to 10%; and / or Cu 2+ : 4 to 16%; and / or Na + : 4 to 16%; and / or Ba 2+ : 0.5 to 10%; and / or Li + : 0 to 9.5%; and / or K + : 0 to 8%; and / or Mg 2+ : 0 to 8%; and / or Ca 2+ : 0 to 8%; and / or Sr 2+ : 0 to 8%; and / or Ln 3+ : 0 to 5%; and / or Si 4+ : 0 to 3%; and / or B3+ : 0-3%; and / or Zr 4+ : 0-3%; and / or Sb 3+ : 0-1%; and / or Sn 4+ : 0-1%; and / or Ce 4+ : 0-1%, the Ln 3+ is one or more of La 3+ , Gd 3+ , Y 3+ , Yb 3+ .

[0009] (5) The glass according to any one of (1) to (4), having components expressed in mole percent satisfying one or more of the following 8 cases:

[0010] 1) P 5+ / (Al 3+ + Zn 2+ ) is 8.0 to 25.0, preferably P 5+ / (Al 3+ + Zn 2+ ) is 9.0 to 20.0, more preferably P 5+ / (Al 3 + + Zn 2+ ) is 10.0 to 15.0;

[0011] 2) P 5+ / (Na + + Zn 2+ ) is 3.5 to 12.0, preferably P 5+ / (Na + + Zn 2+ ) is 4.0 to 10.0, more preferably P 5+ / (Na + + Zn 2+ ) is 4.5 to 9.0, further preferably P 5+ / (Na + + Zn 2+ ) is 5.5 to 8.5;

[0012] 3) (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.1 to 2.0, preferably (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.1 to 1.5, more preferably (Al 3+ + K + + Zn 2+ ) / Cu2+ 0.2 to 1.2, further preferably (Al 3+ + K + + Zn 2+ ) / Cu 2+ 0.2 to 1.0;

[0013] 4) (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + 0.1 to 1.2, preferably (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + 0.1 to 1.0, more preferably (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + 0.2 to 0.85, further preferably (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + 0.3 to 0.8;

[0014] 5) Na + / (Ca 2+ + Sr 2+ ) 0.5 to 20.0, preferably Na + / (Ca 2+ + Sr 2+ ) 1.0 to 15.0, more preferably Na + / (Ca 2+ + Sr 2+ ) 1.5 to 10.0, further preferably Na + / (Ca 2+ + Sr 2+ ) 2.0 to 7.5;

[0015] 6) (Li + + B 3+ ) / (Ca 2+ + Sr 2+ ) 2.0 or less, preferably (Li + + B 3+ ) / (Ca 2+ + Sr 2+) is 1.5 or less, more preferably (Li + +B 3+ ) / (Ca 2+ +Sr 2+ ) is 1.0 or less, further preferably (Li + +B 3+ ) / (Ca 2+ +Sr 2+ ) is 0.05 to 0.8;

[0016] 7) (Li + +K + ) / Al 3+ is 1.0 or less, preferably (Li + +K + ) / Al 3+ is 0.85 or less, more preferably (Li + +K + ) / Al 3+ is 0.75 or less, further preferably (Li + +K + ) / Al 3+ is 0.1 to 0.6;

[0017] 8) 10 x (Li + +K + ) / P 5+ is 1.2 or less, preferably 10 x (Li + +K + ) / P 5+ is 1.0 or less, more preferably 10 x (Li + +K + ) / P 5+ is 0.8 or less, further preferably 10 x (Li + +K + ) / P 5+ is 0.05 to 0.6.

[0018] (6) The glass according to any one of (1) to (4), having components in terms of mole percent, wherein: P 5+ : 63 to 72%, preferably P 5+ : 64.5 to 70%; and / or Al 3+ : 2 to 8.5%, preferably Al 3+ : 2.5 to 7%; and / or Cu 2+ : 6 to 15%, preferably Cu 2+ : 8 to 13%; and / or Na + : 6 to 14%, preferably Na + : 7 to 12%; and / or Ba 2+ : 1 to 8.5%, preferably Ba 2+2-7%; and / or Li + 0-7%, preferably Li + 0-5%; and / or K + 0-5%, preferably K + 0-3%; and / or Mg 2+ 0-6%, preferably Mg 2+ 0-5%; and / or Ca 2+ 0-4.5%, preferably Ca 2+ 0-3%; and / or Sr 2+ 0-4.5%, preferably Sr 2+ 0-3%; and / or Zn 2+ 0-3%, preferably Zn 2+ 0-1%; and / or Ln 3+ 0-2%, preferably Ln 3+ 0-1%; and / or Si 4+ 0-2%, preferably Si 4+ 0-1%; and / or B 3+ 0-2%, preferably B 3+ 0-1%; and / or Zr 4+ 0-2%, preferably Zr 4+ 0-1%; and / or Sb 3+ 0-0.5%, preferably Sb 3+ 0-0.2%; and / or Sn 4+ 0-0.5%, preferably Sn 4+ 0-0.2%; and / or Ce 4+ 0-0.5%, preferably Ce 4+ 0-0.2%, the Ln 3+ is one or more of La 3+ , Gd 3+ , Y 3+ , Yb 3+ .

[0019] (7) The glass according to any one of (1) to (4), having components expressed in mole percent, the anion component comprising: O 2- 95-100%, preferably O 2- 98-100%, more preferably O 2- 99-100%; and / or F - 0-5%, preferably F - 0-2%, more preferably F - 0-1%; and / or Cl - + Br - + I - 0-2%, preferably Cl - + Br- +I - : 0 to 1%, more preferably Cl - +Br - +I - : 0 to 0.5%.

[0020] (8) The glass according to (7), wherein the components are expressed in terms of mole percentage, wherein: (Li + +K + +F - ) / Cu 2+ is 1.0 or less, preferably (Li + +K + +F - ) / Cu 2+ is 0.8 or less, more preferably (Li + +K + +F - ) / Cu 2+ is 0.6 or less, further preferably (Li + +K + +F - ) / Cu 2+ is 0.05 to 0.5; and / or (Zn 2+ +F - ) / Ba 2+ is 1.0 or less, preferably (Zn 2+ +F - ) / Ba 2+ is 0.7 or less, more preferably (Zn 2+ +F - ) / Ba 2+ is 0.5 or less, further preferably (Zn 2+ +F - ) / Ba 2+ is 0.3 or less.

[0021] (9) The glass according to any one of (1) to (4), wherein the components do not contain Zn 2+ ; and / or do not contain La 3+ ; and / or do not contain Gd 3+ ; and / or do not contain Y 3+ ; and / or do not contain Yb 3+ ; and / or do not contain Si 4+ ; and / or do not contain B 3+ ; and / or do not contain Zr 4+ ; and / or do not contain Fe 3+ ; and / or do not contain V 5+ ; and / or do not contain S 6+ ; and / or do not contain F - ; and / or do not contain Cl -; and / or does not contain Br - ; and / or does not contain I - .

[0022] (10) The glass according to any one of (1) to (4), wherein the glass has a spectral transmittance τ 400 of 82.0% or more, preferably 84.0% or more, more preferably 86.0% or more, at a wavelength of 400 nm; and / or a spectral transmittance τ 450 of 85.0% or more, preferably 86.0% or more, more preferably 88.5% or more, at a wavelength of 450 nm; and / or a spectral transmittance τ 500 of 87.0% or more, preferably 88.0% or more, more preferably 89.0% or more, at a wavelength of 500 nm; and / or a spectral transmittance τ 1100 of 5.0% or less, preferably 4.0% or less, more preferably 3.0% or less, in a wavelength range of 500 to 700 nm; and / or a wavelength λ 50 corresponding to a transmittance of 50% in the spectral transmittance in the wavelength range of 500 to 700 nm is 625 to 665 nm, preferably 630 to 665 nm, more preferably 645 to 660 nm.

[0023] (11) The glass according to (10), wherein the thickness of the glass is 0.15 to 0.35 mm, preferably 0.2 to 0.3 mm, more preferably 0.1 mm or 0.15 mm or 0.2 mm or 0.21 mm or 0.25 mm.

[0024] (12) The glass according to any one of (1) to (4), wherein the weather resistance of the glass is Class 3 or more, preferably Class 2 or more, more preferably Class 1; and / or the transition temperature is 450°C or less, preferably 440°C or less, more preferably 430°C or less, further preferably 420°C or less; and / or the density is 3.30 g / cm 3 or less, preferably 3.20 g / cm 3 or less, more preferably 3.10 g / cm 3 or less, further preferably 3.05 g / cm 3 or less; and / or the coefficient of thermal expansion is 110 x 10 -7 or less, preferably 105 x 10 -7 or less, more preferably less than 100 x 10 -7 or less; and / or the bubble degree is Class A or more, preferably Class A0 or more, more preferably Class A 00 ; and / or the viscosity at 1000°C is 30.0 poise or less, preferably 20.0 poise or less, more preferably 10.0 poise or less; and / or the Young's modulus is 5700 x 10 7Pa or more, preferably 5950 x 10 7 Pa or more, more preferably greater than 6000 x 10 7 Pa, further preferably 6100 x 10 7 Pa or more.

[0025] (13) A glass element comprising the glass according to any one of (1) to (12).

[0026] (14) A light filter comprising the glass according to any one of (1) to (12), or the glass element according to (13).

[0027] (15) An apparatus comprising the glass according to any one of (1) to (12), or the glass element according to (13), or the light filter according to (14).

[0028] The present application has the following advantageous effects: by rational component design, the glass obtained by the present application has excellent transmission properties in the visible region, excellent absorption properties in the near infrared region, and excellent weather resistance. DETAILED DESCRIPTION

[0029] Hereinafter, embodiments of the present application will be described in detail, but the present application is not limited to the following embodiments, and can be implemented by appropriately changing within the scope of the object of the present application. Furthermore, regarding portions described repeatedly, although appropriate omission of description is made, the gist of the application is not limited thereby.

[0030] [GLASS]

[0031] Hereinafter, the range of each component (ingredient) of the glass of the present application will be described. In the present specification, unless otherwise specified, the content of a cation component is expressed as a molar percentage (mol%) of the cation component with respect to the total cation components, the content of an anion component is expressed as a molar percentage (mol%) of the anion component with respect to the total anion components; the ratio between the contents of cation components is the ratio between the molar percentage contents of the respective cation components; the ratio between the contents of anion components is the ratio between the molar percentage contents of the respective anion components; the ratio between the contents of cation and anion components is the ratio between the molar percentage content of the cation component with respect to the total cation components and the molar percentage content of the anion component with respect to the total anion components; and the total content between cation and anion components is the total value between the molar percentage content of the cation component with respect to the total cation components and the molar percentage content of the anion component with respect to the total anion components.

[0032] Unless otherwise indicated herein, the numerical values listed in this document are inclusive of the upper and lower values, "about" and "substantially" include the exact values, and all integers and fractions within that range, and are not limited to the specific values listed as defining the range. As used herein, "and / or" is inclusive, e.g., "A and / or B" means only A, or only B, or both A and B.

[0033] It should be noted that the ion valence of each component described below is a representative value used for convenience, and is not distinguished from other ion valences. There is a possibility that the ion valence of each component in the glass is other than the representative value. For example, P is generally present in the glass in a state of +5 valence, and thus "P 5+ " is used as a representative value in this patent, but there is a possibility that it is present in a state of other ion valence, which is also within the scope of protection of this patent.

[0034] <cation component>

[0035] P 5+ is an indispensable component for constituting the glass framework of the present invention, and can promote the formation of the glass and be advantageous for improving the near-infrared absorption performance of the glass. If the content of P 5+ is less than 62%, the above effects are insufficient, and the near-infrared absorption characteristics of the glass are difficult to meet the design requirements. Therefore, the content of P 5+ in the present invention is 62% or more, and preferably 63% or more. The inventors have found through a large number of experimental studies that, by making the content of P 5+ be 64.5% or more, the weather resistance and Young's modulus of the glass can be improved, and it is more advantageous for the glass to have excellent weather resistance and high Young's modulus at the same time. Therefore, it is more preferable that the content of P 5+ be 64.5% or more. If the content of P 5 + exceeds 75%, the glass has decreased resistance to devitrification, and the tendency of devitrification of the glass increases. Therefore, the content of P 5+ is 75% or less, and preferably 72% or less, and more preferably 70% or less. In some embodiments, the content of P 5+ may be 62%, 62.5%, 63%, 63.5%, 64%, 64.5%, 65%, 65.5%, 66%, 66.5%, 67%, 67.5%, 68%, 68.5%, 69%, 69.5%, 70%, 70.5%, 71%, 71.5%, 72%, 72.5%, 73%, 73.5%, 74%, 74.5%, 75%, and the like, as well as all ranges and sub-ranges between the above values. It should be understood that, in embodiments, any of the above ranges can be combined with any other range.

[0036] Al 3+It is beneficial to improve the strength of the glass and improve the chemical stability of the glass, but if the content is too high, the melting performance of the glass becomes poor, and the near-infrared light absorption characteristics become poor. Therefore, the content of Al 3+ in the present application is 1-10%, preferably 2-8.5%, and more preferably 2.5-7%. In some embodiments, the content of Al 3+ may be 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, etc., and all ranges and sub-ranges between the above-mentioned values. It should be understood that in embodiments, any of the above-mentioned ranges can be combined with any other range.

[0037] Cu 2+ is a necessary component for the glass of the present application to obtain near-infrared light absorption performance. If the content of Cu 2+ is less than 4%, the near-infrared absorption performance of the glass is difficult to meet the design requirements, but if the content of Cu 2+ exceeds 16%, the melting temperature of the glass increases, and the resistance to devitrification decreases. Therefore, the content of Cu 2+ in the present application is 4-16%, preferably 6-15%, and more preferably 8-13%. In some embodiments, the content of Cu + may be 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, etc., and all ranges and sub-ranges between the above-mentioned values. It should be understood that in embodiments, any of the above-mentioned ranges can be combined with any other range.

[0038] Li + can improve the melting performance of the glass, but if the content of Li + is too high in the present application, the near-infrared absorption characteristics of the glass decrease, and the resistance to devitrification and weather resistance become poor. Therefore, the content of Li + in the present application is 0-9.5%, preferably 0-7%, and more preferably 0-5%. In some embodiments, the content of Li +The content can be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, etc., as well as all ranges and sub-ranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0039] Na + It can reduce the high-temperature viscosity of glass, improve the visible light transmittance of glass, and optimize the near-infrared light absorption performance of glass. However, if its content is too high, the forming performance and chemical stability of glass will deteriorate. Therefore, in this invention, Na... + The content of Na is 4-16%, preferably 6-14%, and more preferably 7-12%. In some embodiments, Na + The content can be 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, etc., as well as all ranges and sub-ranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0040] Appropriate amount of K + It can improve the devitrification resistance of glass, but if its content is too high, the stability of the glass will decrease. Therefore, in this invention, K + The content is 0-8%, preferably K. + The content is 0-5%, more preferably K + The content of K is 0-3%. In some embodiments, K + The content can be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, etc., as well as all ranges and sub-ranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0041] In some implementations, Li + K + Total content of Li + +K +with Al 3+ The ratio between the content of Li + + K + and Al 3+ is controlled to be 1.0 or less. This can reduce the high-temperature viscosity of the glass while preventing the glass bubble degree from becoming worse. Therefore, it is preferable that (Li + + K + ) / Al 3+ be 1.0 or less, more preferable that (Li + + K + ) / Al 3+ be 0.85 or less, further preferable that (Li + + K + ) / Al 3+ be 0.75 or less, and still further preferable that (Li + + K + ) / Al 3+ be 0.1 to 0.6. In some embodiments, (Li + + K + ) / Al 3+ may have a value of 0, greater than 0, 0.01, 0.03, 0.05, 0.07, 0.1, 0.13, 0.15, 0.17, 0.2, 0.23, 0.25, 0.27, 0.3, 0.33, 0.35, 0.37, 0.4, 0.43, 0.45, 0.47, 0.5, 0.53, 0.55, 0.57, 0.6, 0.63, 0.65, 0.67, 0.7, 0.73, 0.75, 0.77, 0.8, 0.83, 0.85, 0.87, 0.9, 0.93, 0.95, 0.97, 1.0, and all ranges and sub-ranges between the aforementioned values. It should be understood that in embodiments, any of the aforementioned ranges can be combined with any other range.

[0042] In some embodiments, by controlling 10x(Li + + K + ) / P 5+ to be 1.2 or less, the coefficient of thermal expansion of the glass can be reduced, and the glass can more easily achieve desired spectral properties, such that the wavelength (λ 50 corresponding to a transmittance of 50% of the glass is 625 to 665 nm, preferably 630 to 665 nm, and more preferably 645 to 660 nm. Therefore, it is preferable that 10x(Li + + K + ) / P 5+ be 1.2 or less, more preferable that 10x(Li + + K + ) / P 5+ be 1.0 or less, and further preferable that 10x(Li+ + K + ) / P 5+ 0.8, more preferably 10 x (Li + + K + ) / P 5+ 0.05 to 0.6. In some embodiments, 10 x (Li + + K + ) / P 5+ 0, greater than 0, 0.01, 0.03, 0.05, 0.07, 0.1, 0.13, 0.15, 0.17, 0.2, 0.23, 0.25, 0.27, 0.3, 0.33, 0.35, 0.37, 0.4, 0.43, 0.45, 0.47, 0.5, 0.53, 0.55, 0.57, 0.6, 0.63, 0.65, 0.67, 0.7, 0.73, 0.75, 0.77, 0.8, 0.83, 0.85, 0.87, 0.9, 0.93, 0.95, 0.97, 1.0, 1.03, 1.05, 1.07, 1.1, 1.13, 1.15, 1.17, 1.2, and all ranges and sub-ranges between the foregoing values. It is to be understood that in embodiments, any of the foregoing ranges can be combined with any of the other ranges.

[0043] Zn 2+ may increase the "alkalinity" of the glass, which is beneficial for the glass to contain more Cu 2+ , which increases the near-infrared absorption properties of the glass, but if the content is too high, the weather resistance of the glass decreases. Therefore, the content of Zn 2+ is 0 to 5%, preferably 0 to 3%, and more preferably 0 to 1%. In some embodiments, it is further preferred that the glass does not contain Zn 2+ . In some embodiments, the content of Zn 2+ may be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, and all ranges and sub-ranges between the foregoing values. It is to be understood that in embodiments, any of the foregoing ranges can be combined with any of the other ranges.

[0044] In some embodiments, the content of P 5+ is combined with the total content of Al 3+ and Zn 2+ , Al 3+ + Zn 2+ , and the ratio of P 5+ / (Al 3+ + Zn2+ By controlling the P value within the range of 6.5 to 30.0, the weather resistance of the glass can be improved while reducing its coefficient of thermal expansion. Therefore, P is preferred. 5+ / (Al 3+ +Zn 2+ The value is 6.5–30.0, with P being more preferred. 5+ / (Al 3+ +Zn 2+ The P value ranges from 8.0 to 25.0, with further optimization of P. 5+ / (Al 3+ +Zn 2+ The P value is 9.0–20.0, and P is further optimized. 5+ / (Al 3+ +Zn 2+ The value is between 10.0 and 15.0. In some implementations, P... 5+ / (Al 3+ +Zn 2+ The values ​​for ) can be 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0, 15.5, 16.0, 16.5, 17.0, 17.5, 18.0, 18.5, 19.0, 19.5, 20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0, 23.5, 24.0, 24.5, 25.0, 25.5, 26.0, 26.5, 27.0, 27.5, 28.0, 28.5, 29.0, 29.5, 30.0, etc., as well as all ranges and subranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0045] In some implementations, P 5+ The content of Na + Zn 2+ Total Na content + +Zn 2+ The ratio P between them 5+ / (Na + +Zn 2+ By controlling the P-value within the range of 3.5 to 12.0, the Young's modulus of the glass can be increased, its near-infrared light absorption performance improved, and its spectral transmittance at 1100 nm wavelength reduced. Therefore, P is preferred. 5+ / (Na + +Zn 2+ The value is 3.5–12.0, with P being more preferred. 5 + / (Na + +Zn2+ ) is 4.0 to 10.0, further preferably P 5+ / (Na + + Zn 2+ ) is 4.5 to 9.0, more further preferably P 5+ / (Na + + Zn 2+ ) is 5.5 to 8.5. In some embodiments, P 5+ / (Na + + Zn 2+ ) can have a value of 3.5, 3.7, 4.0, 4.3, 4.5, 4.7, 5.0, 5.3, 5.5, 5.7, 6.0, 6.3, 6.5, 6.7, 7.0, 7.3, 7.5, 7.7, 8.0, 8.3, 8.5, 8.7, 9.0, 9.3, 9.5, 9.7, 10.0, 10.3, 10.5, 10.7, 11.0, 11.3, 11.5, 11.7, 12.0, and all ranges and sub-ranges between the foregoing values. It is to be understood that in embodiments, any of the foregoing ranges can be combined with any other range.

[0046] In some embodiments, the total content of Al 3+ , K + , and Zn 2+ , Al 3+ + K + + Zn 2+ , is controlled to be within a range of 0.1 to 2.0 relative to the content of Cu 2+ , (Al 3+ + K + + Zn 2+ ) / Cu 2+ , to improve the weather resistance of the glass while preventing an increase in the coefficient of thermal expansion of the glass. Thus, it is preferable that (Al 3+ + K + + Zn 2+ ) / Cu 2+ be 0.1 to 2.0, more preferably (Al 3+ + K + + Zn 2+ ) / Cu 2+ be 0.1 to 1.5, further preferably (Al 3+ + K + + Zn 2+ ) / Cu 2+ be 0.2 to 1.2, more further preferably (Al 3+ + K + + Zn 2+ ) / Cu 2+ be 0.2 to 1.0. In some embodiments, (Al3+ +K + +Zn 2+ ) / Cu 2+ The values ​​can be 0.1, 0.13, 0.15, 0.17, 0.2, 0.23, 0.25, 0.27, 0.3, 0.33, 0.35, 0.37, 0.4, 0.43, 0.45, 0.47, 0.5, 0.53, 0.55, 0.57, 0.6, 0.63, 0.65, 0.67, 0.7, 0.73, 0.75, 0.77, 0.8, 0.83, 0.85, and 0. 87, 0.9, 0.93, 0.95, 0.97, 1.0, 1.03, 1.05, 1.07, 1.1, 1.13, 1.15, 1.17, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, 1.95, 2.0, etc., as well as all ranges and subranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0047] Mg 2+ It can improve the melting and chemical stability of glass. However, if its content exceeds 8%, the visible light transmittance of the glass tends to decrease, and the high-temperature viscosity of the glass increases. Therefore, Mg... 2+ The content is 0-8%, preferably Mg. 2+ The content is 0-6%, preferably Mg. 2+ The content is 0-5%. In some embodiments, Mg 2+ The content can be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, etc., as well as all ranges and sub-ranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0048] Ca 2+ It can lower the liquidus temperature of glass, but if its content is too high, the chemical stability of the glass will decrease. Therefore, Ca... 2 + The content is 0-8%, preferably 0-4.5%, and more preferably 0-3%. In some embodiments, Ca... 2+The content can be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, etc., as well as all ranges and sub-ranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0049] Sr 2+ It can improve the weather resistance of glass and lower its liquidus temperature, but if its content is too high, the near-infrared absorption characteristics and devitrification resistance of the glass will decrease, and the strength of the glass will also decrease. Therefore, Sr 2+ The content of Sr is 0-8%, preferably 0-4.5%, and more preferably 0-3%. In some embodiments, Sr 2+ The content can be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, etc., as well as all ranges and sub-ranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0050] In some implementations, Na + The content of Ca 2+ 、Sr 2+ Total content of Ca 2+ +Sr 2+ The ratio between Na + / (Ca 2+ +Sr 2+ By controlling the concentration of Na within the range of 0.5 to 20.0, the Young's modulus of the glass can be increased while preventing the glass transition temperature from rising. Therefore, Na is preferred. + / (Ca 2+ +Sr 2+ The concentration of Na is 0.5–20.0, with Na being more preferred. + / (Ca 2+ +Sr 2+ The concentration of Na is 1.0–15.0, with Na being the most preferred. + / (Ca 2+ +Sr 2+ The concentration of Na is 1.5–10.0, with Na being even more preferred. + / (Ca 2+ +Sr 2+The value is 2.0–7.5. In some embodiments, Na… + / (Ca 2+ +Sr 2+ The value of ) can be 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0, 15.5, 16.0, 16.5, 17.0, 17.5, 18.0, 18.5, 19.0, 19.5, 20.0, etc., as well as all ranges and subranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0051] In some implementations, Mg 2+ Ca 2+ 、Sr 2+ Li + K + Total Mg content 2+ +Ca 2+ +Sr 2+ +Li + +K + with Na + The ratio between the contents of (Mg) 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + By controlling the concentration within the range of 0.1 to 1.2, the bubble density of the glass can be increased while reducing its high-temperature viscosity. Therefore, (Mg) is preferred. 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value is 0.1 to 1.2, more preferably (Mg 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value is 0.1–1.0, with further preference given to (Mg). 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value is 0.2–0.85, with a further preferred value (Mg).2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + may be 0.3 to 0.8. In some embodiments, (Mg 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + may be 0.1, 0.13, 0.15, 0.17, 0.2, 0.23, 0.25, 0.27, 0.3, 0.33, 0.35, 0.37, 0.4, 0.43, 0.45, 0.47, 0.5, 0.53, 0.55, 0.57, 0.6, 0.63, 0.65, 0.67, 0.7, 0.73, 0.75, 0.77, 0.8, 0.83, 0.85, 0.87, 0.9, 0.93, 0.95, 0.97, 1.0, 1.03, 1.05, 1.07, 1.1, 1.13, 1.15, 1.17, 1.2, etc., as well as all ranges and sub-ranges between the foregoing values. It should be appreciated that in embodiments, any of the foregoing ranges can be combined with any of the other ranges.

[0052] Ba 2+ may improve the stability and strength of the glass, but if its content is too high, the density of the glass increases and the resistance to devitrification decreases. Therefore, the content of Ba 2+ may be 0.5 to 10%, preferably 1 to 8.5%, and more preferably 2 to 7%. In some embodiments, the content of Ba 2+ may be 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, etc., as well as all ranges and sub-ranges between the foregoing values. It should be appreciated that in embodiments, any of the foregoing ranges can be combined with any of the other ranges.

[0053] Ln 3+ (Ln 3+ may be one or more of La 3+ , Gd 3+ , Y 3+ , Yb 3+ ) is beneficial to improve the chemical stability and hardness of the glass, but if its content exceeds 5%, the resistance to devitrification and spectral transmittance of the glass deteriorate. Therefore, in the present application, the content of Ln 3+0-5%, preferably 0-2%, more preferably 0-1%. In some embodiments, it is further preferred that the glass does not contain La 3+ , and / or does not contain Gd 3+ , and / or does not contain Y 3+ , and / or does not contain Yb 3+ . In some embodiments, the content of Ln 3+ may be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, etc., as well as all ranges and sub-ranges between the aforementioned values. It is to be understood that in embodiments, any of the aforementioned ranges can be combined with any of the other ranges.

[0054] Si 4+ may improve the chemical durability of the glass, and if its content is too high, the melting property of the glass becomes poor, and the near-infrared light absorption property of the glass decreases. Therefore, the content of Si 4+ is 0-3%, preferably 0-2%, more preferably 0-1%. In some embodiments, it is further preferred that the glass does not contain Si 4+ . In some embodiments, it is further preferred that the glass does not contain Si 4+ may be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, etc., as well as all ranges and sub-ranges between the aforementioned values. It is to be understood that in embodiments, any of the aforementioned ranges can be combined with any of the other ranges.

[0055] B 3+ may lower the melting temperature of the glass, and if its content is too high, the near-infrared light absorption property of the glass decreases. Therefore, the content of B 3+ is 0-3%, preferably 0-2%, more preferably 0-1%. In some embodiments, it is further preferred that the glass does not contain B 3+ . In some embodiments, it is further preferred that the glass does not contain B 3+ . In some embodiments, it is further preferred that the glass does not contain B 3+The content can be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, etc., as well as all ranges and sub-ranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0056] In some implementations, Li + B 3+ Total content of Li + +B 3+ With Ca 2+ 、Sr 2+ Total content of Ca 2+ +Sr 2+ The ratio between (Li) + +B 3+ ) / (Ca 2+ +Sr 2+ By controlling the density of the glass to below 2.0, the visible light transmittance can be prevented from decreasing while reducing the glass's density. Therefore, (Li) is preferred. + +B 3+ ) / (Ca 2+ +Sr 2+ The value is 2.0 or less, and more preferably (Li) + +B 3+ ) / (Ca 2 + +Sr 2+ The value is below 1.5, and further preferred is (Li) + +B 3+ ) / (Ca 2+ +Sr 2+ The value is below 1.0, and further preferred is (Li) + +B 3+ ) / (Ca 2+ +Sr 2+ The value is 0.05 to 0.8. In some embodiments, (Li) + +B 3+ ) / (Ca 2+ +Sr 2+The value of the parameter (a + b) can be 0, 0.01, 0.05, 0.1, 0.13, 0.15, 0.17, 0.2, 0.23, 0.25, 0.27, 0.3, 0.33, 0.35, 0.37, 0.4, 0.43, 0.45, 0.47, 0.5, 0.53, 0.55, 0.57, 0.6, 0.63, 0.65, 0.67, 0.7, 0.73, 0.75, 0.77, 0.8, 0.83, 0.85, 0.87, 0.9, 0.93, 0.95, 0.97, 1.0, 1.03, 1.05, 1.07, 1.1, 1.13, 1.15, 1.17, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, 1.95, 2.0, and the like, as well as all ranges and sub-ranges between the foregoing values. It will be appreciated that, in embodiments, any of the foregoing ranges can be combined with any of the other ranges.

[0057] Zr 4+ The chemical stability of the glass can be improved, but if the content is too high, the melting performance of the glass will be significantly reduced, and the glass will have reduced resistance to devitrification. Therefore, the content of Zr 4+ is 0-3%, preferably 0-2%, and more preferably 0-1%. In some embodiments, it is further preferred that the glass not contain Zr 4+ In some embodiments, the content of Zr 4+ may be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3%, and the like, as well as all ranges and sub-ranges between the foregoing values. It will be appreciated that, in embodiments, any of the foregoing ranges can be combined with any of the other ranges.

[0058] Sb 3+ , Sn 4+ , Ce 4+ and the like can be used as fining agents to improve the fining effect of the glass and to improve the bubble level of the glass. In the present application, the content of Sb 3+ , Sn 4+ , Ce 4+ is 0-1%, preferably 0-0.5%, and more preferably 0-0.2%. In some embodiments, it is further preferred that the glass not contain Sb 3+may be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, etc., as well as all ranges and sub-ranges between the aforementioned values. In some embodiments, Sn 4+ may be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, etc., as well as all ranges and sub-ranges between the aforementioned values. In some embodiments, Ce 4+ may be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, etc., as well as all ranges and sub-ranges between the aforementioned values. It should be understood that in embodiments, any of the aforementioned ranges can be combined with any other range.

[0059] <Anion Component>

[0060] O 2- is the main anion component in the glass of the present application, which can stabilize the glass network structure, form a stable glass, and also ensure that copper in the glass exists in the form of Cu 2+ , thereby ensuring the characteristic of the glass of the present application to absorb light in the near-infrared region. If the content of O 2- is too low, it is difficult to form a stable glass, and it is difficult to achieve the effect of absorbing light in the near-infrared region. Therefore, the content of O 2- in the present application is 95-100%, preferably 98-100%, and more preferably 99-100%. In some embodiments, the content of O 2- may be 95%, 95.3%, 95.5%, 95.7%, 96%, 96.3%, 96.5%, 96.7%, 97%, 97.3%, 97.5%, 97.7%, 98%, 98.3%, 98.5%, 98.7%, 99%, 99.3%, 99.5%, 99.7%, 100%, etc., as well as all ranges and sub-ranges between the aforementioned values. It should be understood that in embodiments, any of the aforementioned ranges can be combined with any other range.

[0061] F - can reduce the melting temperature of the glass and improve the visible light transmittance of the glass, but if the content of F - is too high, F -0-5%, preferably 0-2%, more preferably 0-1%. In some embodiments, it is further preferred that the glass does not contain F - In some embodiments, F - may be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, and all ranges and sub-ranges between the foregoing values. It is understood that in embodiments, any of the foregoing ranges can be combined with any other range.

[0062] In some embodiments, the Li + , K + , and F - are added to the glass in amounts such that the total content of Li + + K + + F - is greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, and all ranges and sub-ranges between the foregoing values. 2+ In some embodiments, the ratio of the total content of Li + + K + + F - to the content of Cu 2+ (Li 50 + K + + F + ) / Cu - is controlled to be less than or equal to 1.0. This can reduce the coefficient of thermal expansion of the glass and make the glass more likely to achieve desired spectral properties, such that the wavelength (λ 2+ ) at which the glass has a transmittance of 50% is in the range of 625-665 nm, preferably in the range of 630-665 nm, more preferably in the range of 645-660 nm. Thus, it is preferred that (Li + + K + + F - ) / Cu 2+ be less than or equal to 1.0, more preferably (Li + + K + + F - ) / Cu 2+ be less than or equal to 0.8, even more preferably (Li + + K + + F - ) / Cu 2+ be less than or equal to 0.6, yet even more preferably (Li + + K + + F - ) / Cu 2+may be 0, greater than 0, 0.01, 0.03, 0.05, 0.07, 0.1, 0.13, 0.15, 0.17, 0.2, 0.23, 0.25, 0.27, 0.3, 0.33, 0.35, 0.37, 0.4, 0.43, 0.45, 0.47, 0.5, 0.53, 0.55, 0.57, 0.6, 0.63, 0.65, 0.67, 0.7, 0.73, 0.75, 0.77, 0.8, 0.83, 0.85, 0.87, 0.9, 0.93, 0.95, 0.97, 1.0, and the like, as well as all ranges and sub-ranges between the above values. It is to be understood that in embodiments, any of the above ranges can be combined with any other range.

[0063] In some embodiments, Zn 2+ , F - are controlled to be 0.01 or less, the weather resistance of the glass can be prevented from deteriorating. Therefore, it is preferable that the content of Zn 2+ +F - be 0.01 or less, more preferable that the content of Zn 2+ +F 2+ be 0.005 or less, and further preferable that the content of Zn - +F 2+ be 0.001 or less. 2+ +F - ) / Ba 2+ be 1.0 or less, more preferable that (Zn 2+ +F - ) / Ba 2+ be 0.7 or less, further preferable that (Zn 2+ +F - ) / Ba 2+ be 0.5 or less, more further preferable that (Zn 2+ +F - ) / Ba 2+ be 0.3 or less. In some embodiments, (Zn 2+ +F - ) / Ba 2+The value can be 0, greater than 0, 0.01, 0.03, 0.05, 0.07, 0.1, 0.13, 0.15, 0.17, 0.2, 0.23, 0.25, 0.27, 0.3, 0.33, 0.35, 0.37, 0.4, 0.43, 0.45, 0.47, 0.5, 0.53, 0.55, 0.57, 0.6, 0.63, 0.65, 0.67, 0.7, 0.73, 0.75, 0.77, 0.8, 0.83, 0.85, 0.87, 0.9, 0.93, 0.95, 0.97, 1.0, etc., as well as all ranges and subranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0064] Cl - ,Br - I - These components can be used as clarifying agents to improve the clarification effect of glass and increase its bubble content. In this invention, Cl... - ,Br - I - Total content of Cl - +Br - +I - The concentration is 0-2%, preferably 0-1%, and more preferably 0-0.5%. In some embodiments, it is further preferred that it does not contain Cl. - and / or does not contain Br - and / or does not contain I - In some implementations, Cl - +Br - +I - The percentage can be 0%, greater than 0%, 0.01%, 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, etc., as well as all ranges and sub-ranges between the above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0065] <Components not contained>

[0066] The spectral transmittance of glass is affected by cationic components such as Cr, Mn, Co, Ni, Ag and Mo, even if they are present in small amounts individually or in combination, which is not conducive to the formation of the glass of the present invention. Therefore, it is preferable that the glass does not contain the above-mentioned components.

[0067] As, Pb, Th, Cd, Tl, Os, Be, and Se, etc. have a tendency to be controlled in use as harmful chemical substances in recent years, and measures for environmental protection are necessary not only in the manufacturing process of glass, but also in the processing process and disposal after productization. Therefore, in the case where the influence on the environment is taken into consideration, it is preferable that they are not contained in practice except for inevitable mixing. Thus, the glass becomes practically free from substances which pollute the environment. Therefore, the glass of the present application can be manufactured, processed, and discarded even without taking special measures for environmental countermeasures.

[0068] In some embodiments, to obtain the glass of the present application with excellent performance, it is preferable that S is not contained 6+ In some embodiments, to prevent the deterioration of the visible light region transmittance and / or the disturbance of the spectral transmittance of the glass, it is preferable that V is not contained 5+ , and / or Fe is not contained 3+ .

[0069] "not contained" and "0%" described herein mean that the component is not intentionally added as a raw material to the glass of the present application; however, as a raw material and / or equipment for producing the glass, there can be some impurities or components which are not intentionally added and which are contained in a small amount or a trace amount in the final glass, and such a case is also within the scope of the present application.

[0070] Next, the performance of the glass of the present application will be described.

[0071] <Weather resistance>

[0072] The weather resistance of the glass was tested using the following method:

[0073] A glass sample of 30 mm x 40 mm x 5 mm, which was polished on both large faces, was prepared from the glass to be tested, and was placed in a constant temperature and humidity chamber set at 85°C and 85% humidity. The surface condition was observed by the naked eye every 50 hours under natural light, and the surface corrosion precipitates were confirmed. The weather resistance of the glass was judged according to Table 1 below, with Class 1 being the best and Class 5 being the worst.

[0074] Table 1. Classification and judgment criteria for the weather resistance of glass

[0075] Classification Judgment Criteria Class 1 No obvious precipitates on the glass surface after 200 hours of constant damp heat test Class 2 The precipitate area on the glass surface is less than 20% after 200 hours of constant damp heat test Class 3 The precipitate area on the glass surface is less than 20% after 100 hours of constant damp heat test Class 4 The precipitate area on the glass surface is less than 20% after 50 hours of constant damp heat test Class 5 The precipitate area on the glass surface is more than 20% after 50 hours of constant damp heat test

[0076] In some embodiments, the weather resistance of the glass of the present application can be Class 3 or more, preferably Class 2 or more, and more preferably Class 1.

[0077] <Transition temperature>

[0078] The transition temperature (Tg) of the glass was measured using a differential scanning calorimeter (DSC) according to JIS R 1703-1. g) according to the method specified in GB / T 7962.16-2010.

[0079] In some embodiments, the transition temperature (T g ) of the glass of the present application is 450°C or less, preferably 440°C or less, more preferably 430°C or less, and further preferably 420°C or less. In some embodiments, the transition temperature can be 360°C, 365°C, 370°C, 375°C, 380°C, 385°C, 390°C, 395°C, 400°C, 405°C, 410°C, 415°C, 420°C, 425°C, 430°C, 435°C, 440°C, 445°C, 450°C, and the like, as well as all ranges and sub-ranges between the aforementioned values.

[0080] <density>

[0081] The density (p) of the glass is tested according to the method specified in GB / T 7962.20-2010.

[0082] In some embodiments, the density (p) of the glass of the present application is 3.30 g / cm 3 , preferably 3.20 g / cm 3 , more preferably 3.10 g / cm 3 , and further preferably 3.05 g / cm 3 . In some embodiments, the density (p) can be 2.85 g / cm 3 , 2.86 g / cm 3 , 2.87 g / cm 3 , 2.88 g / cm 3 , 2.89 g / cm 3 , 2.90 g / cm 3 , 2.91 g / cm 3 , 2.92 g / cm 3 , 2.93 g / cm 3 , 2.94 g / cm 3 , 2.95 g / cm 3 , 2.96 g / cm 3 , 2.97 g / cm 3 , 2.98 g / cm 3 , 2.99 g / cm 3 , 3.0 g / cm 3 , 3.01 g / cm 3 , 3.02 g / cm 3 , 3.03 g / cm 3 , 3.04 g / cm 3 , 3.05 g / cm 3 , 3.06 g / cm3 , 3.07 g / cm 3 , 3.08 g / cm 3 , 3.09 g / cm 3 , 3.10 g / cm 3 , 3.15 g / cm 3 , 3.20 g / cm 3 , 3.25 g / cm 3 , 3.30 g / cm 3 and all ranges and sub-ranges between the above values.

[0083] <COEFFICIENT OF THERMAL EXPANSION>

[0084] The coefficient of thermal expansion (a 20 / 120 ) of the glass was tested according to the method specified in GB / T 7962.16-2010 at 20-120 °C.

[0085] In some embodiments, the coefficient of thermal expansion (a 20 / 120℃ ) of the glass of the present application is 110 x 10 -7 / K or less, preferably 105 x 10 -7 / K or less, more preferably less than 100 x 10 -7 / K. In some embodiments, the coefficient of thermal expansion (a 20 / 120℃ ) is 90 x 10 -7 / K, 91 x 10 -7 / K, 92 x 10 -7 / K, 93 x 10 -7 / K, 94 x 10 -7 / K, 95 x 10 -7 / K, 96 x 10 -7 / K, 97 x 10 -7 / K, 98 x 10 -7 / K, 99 x 10 -7 / K, 100 x 10 -7 / K, 101 x 10 -7 / K, 102 x 10 -7 / K, 103 x 10 -7 / K, 104 x 10 -7 / K, 105 x 10 -7 / K, 106 x 10 -7 / K, 107 x 10 -7 / K, 108 x 10 -7 / K, 109 x 10 -7 / K, 110 x 10 -7 / K, and all ranges and sub-ranges between the above values.

[0086] Young's modulus

[0087] The Young's modulus (E) of the glass is determined by measuring the longitudinal wave velocity and the transverse wave velocity of the glass using ultrasonic waves, and then calculated according to the following equation.

[0088]

[0089] G = V S 2 p

[0090] wherein in the equation:

[0091] E is the Young's modulus, Pa;

[0092] G is the shear modulus, Pa;

[0093] V T is the transverse wave velocity, m / s;

[0094] V S is the longitudinal wave velocity, m / s;

[0095] p is the density of the glass, g / cm 3

[0096] In some embodiments, the Young's modulus (E) of the glass of the present application is 5700 x 10 7 Pa or more, preferably 5950 x 10 7 Pa or more, more preferably greater than 6000 x 10 7 Pa, and further preferably 6100 x 10 7 Pa or more. In some embodiments, the Young's modulus can be 5700 x 10 7 Pa, 5750 x 10 7 Pa, 5800 x 10 7 Pa, 5850 x 10 7 Pa, 5900 x 10 7 Pa, 5950 x 10 7 Pa, 6000 x 10 7 Pa, 6050 x 10 7 Pa, 6100 x 10 7 Pa, 6150 x 10 7 Pa, 6200 x 10 7 Pa, 6250 x 10 7 Pa, 6300 x 10 7 Pa, 6350 x 10 7 Pa, 6400 x 10 7 Pa, 6450 x 10 7 Pa, 6500 x 10 7 Pa, 6550 x 10​7 Pa, 6600 x 10 7 Pa, 6650 x 10 7 Pa, 6700 x 10 7 Pa, 6750 x 10 7 Pa, 6800 x 10 7 Pa, and all ranges and sub-ranges between the above values.

[0097] <Blister Level>

[0098] The blister level of the glass is tested according to the method specified in GB / T 7962.8-2010.

[0099] In some embodiments, the blister level of the glass of the present application is A level or above, preferably A0 level or above, more preferably A 00 level or above.

[0100] <High Temperature Viscosity>

[0101] The high temperature viscosity of the glass is tested according to the following method: the high temperature viscosity of the glass is tested using THETA Rheotronic II high temperature viscometer by rotation method, the numerical unit is dPaS (poise), the smaller the value, the smaller the viscosity.

[0102] In some embodiments, the viscosity of the glass at 1000°C is 30.0 poise or less, preferably 20.0 poise or less, more preferably 10.0 poise or less. In some embodiments, the viscosity at 1000°C can be 1.0 poise, 2.0 poise, 3.0 poise, 4.0 poise, 5.0 poise, 6.0 poise, 7.0 poise, 8.0 poise, 9.0 poise, 10.0 poise, 11.0 poise, 12.0 poise, 13.0 poise, 14.0 poise, 15.0 poise, 16.0 poise, 17.0 poise, 18.0 poise, 19.0 poise, 20.0 poise, 21.0 poise, 22.0 poise, 23.0 poise, 24.0 poise, 25.0 poise, 26.0 poise, 27.0 poise, 28.0 poise, 29.0 poise, 30.0 poise, and all ranges and sub-ranges between the above values.

[0103] <Spectral Transmittance>

[0104] The spectral transmittance of the glass of the present application refers to the value obtained by spectrophotometer according to the following test method: assuming that the glass sample has two parallel planes and is optically polished, the light is vertically incident from one parallel plane and exits from the other parallel plane, the intensity of the exiting light divided by the intensity of the incident light is the transmittance, which is also called external transmittance.

[0105] In some embodiments, when the thickness of the glass is 0.1-0.4 mm, the spectral transmittance has one or more of the following characteristics:

[0106] 1) Spectral transmittance at 400nm wavelength (τ) 400 The content of τ is 82.0% or more, preferably 84.0% or more, and more preferably 86.0% or more. In some embodiments, τ 400 It can be 82.0%, 82.5%, 83.0%, 83.5%, 84.0%, 84.5%, 85.0%, 85.5%, 86.0%, 86.1%, 86.2%, 86.3%, 86.4%, 86.5%, 86.6%, 86.7%, 86.8%, 86.9%, 87.0%, 87.1%, 87.2%, 87.3%, 87.4%, 87.5%, etc., as well as all ranges and subranges between the above values.

[0107] 2) Spectral transmittance at 450nm wavelength (τ) 450 The content of τ is 85.0% or more, preferably 86.0% or more, and more preferably 88.5% or more. In some embodiments, τ 450 It can be 85.0%, 85.5%, 86.0%, 86.1%, 86.2%, 86.3%, 86.4%, 86.5%, 86.6%, 86.7%, 86.8%, 86.9%, 87.0%, 87.1%, 87.2%, 87.3%, 87.4%, 87.5%, 87.6%, 87.7%, 87.8%, 87.9%, 88.0%, 88.1%, 88.2%, 88.3%, 88.4%, 88.5%, 88.6%, 88.7%, 88.8%, 88.9%, 89.0%, 89.1%, 89.2%, 89.3%, 89.4%, 89.5%, etc., as well as all ranges and subranges between the above values.

[0108] 3) Spectral transmittance at 500nm wavelength (τ) 500 The content of τ is 87.0% or more, preferably 88.0% or more, and more preferably 89.0% or more. In some embodiments, τ 500 It can be 87.0%, 87.1%, 87.2%, 87.3%, 87.4%, 87.5%, 87.6%, 87.7%, 87.8%, 87.9%, 88.0%, 88.1%, 88.2%, 88.3%, 88.4%, 88.5%, 88.6%, 88.7%, 88.8%, 88.9%, 89.0%, 89.1%, 89.2%, 89.3%, 89.4%, 89.5%, 89.6%, 89.7%, 89.8%, 89.9%, 90.0%, 90.1%, 90.2%, etc., as well as all ranges and subranges between the above values.

[0109] 4) a spectral transmittance (τ 1100 ) of 5.0% or less, preferably 4.0% or less, more preferably 3.0% or less at a wavelength of 1100 nm. In some embodiments, τ 1100 may be 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2.0%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 2.6%, 2.7%, 2.8%, 2.9%, 3.0%, 3.1%, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0%, 4.1%, 4.2%, 4.3%, 4.4%, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5.0%, and all ranges and sub-ranges between the foregoing values.

[0110] In some embodiments, when the thickness of the glass is 0.1-0.4 mm, the wavelength corresponding to a transmittance of 50% (λ 50 ) in the spectral transmittance in the wavelength range of 500-700 nm is 625-665 nm, preferably 630-665 nm, more preferably 645-660 nm. In some embodiments, the value of λ 50 may be 625 nm, 626 nm, 627 nm, 628 nm, 629 nm, 630 nm, 631 nm, 632 nm, 633 nm, 634 nm, 635 nm, 636 nm, 637 nm, 638 nm, 639 nm, 640 nm, 641 nm, 642 nm, 643 nm, 644 nm, 645 nm, 646 nm, 647 nm, 648 nm, 649 nm, 650 nm, 651 nm, 652 nm, 653 nm, 654 nm, 655 nm, 656 nm, 657 nm, 658 nm, 659 nm, 660 nm, 661 nm, 662 nm, 663 nm, 664 nm, 665 nm, and all ranges and sub-ranges between the foregoing values.

[0111] In the above spectral transmittance test, the thickness of the glass is preferably 0.15-0.35 mm, more preferably 0.2-0.3 mm, and further preferably 0.1 mm or 0.15 mm or 0.2 mm or 0.21 mm or 0.25 mm.

[0112] [Manufacturing method]

[0113] The method for manufacturing the glass of the present application is as follows: the glass of the present application is produced by using conventional raw materials and conventional process, using carbonates, nitrates, phosphates, metaphosphates, sulfates, hydroxides, oxides, fluorides and the like as raw materials, after batching in the conventional method, the prepared charge is put into a smelting furnace (such as platinum crucible, quartz crucible and the like) at 800-1100℃ for smelting, and after clarification, stirring and homogenization, a homogeneous molten glass is obtained, which is formed in a mold and annealed to obtain the glass. The person skilled in the art can reasonably and appropriately select the raw materials, process method and process parameters according to the actual needs.

[0114] The glass of the present application can also be formed by well-known methods. In some embodiments, the glasses described herein can be manufactured into shaped bodies, including but not limited to sheets, by various processes, including but not limited to slot draw, float, roll, and other processes known in the art to form sheets. Alternatively, the glass can be formed by float or roll processes known in the art. The glass of the present application can have any reasonably useful shape or structure, 2D, 2.5D or 3D.

[0115] The glass of the present application can be manufactured into a glass shaped body of a sheet by grinding or polishing processing and the like, but the method for manufacturing the glass shaped body is not limited to these methods.

[0116] The glass described in the present application can have any reasonably useful thickness.

[0117] [Glass element]

[0118] The glass element of the present application contains the above-mentioned glass, and can be exemplified by a thin plate-shaped glass element or a lens and the like used in a near-infrared light absorbing filter, which is suitable for color correction for a solid-state imaging element, and has various excellent properties of the above-mentioned glass.

[0119] Further, the thickness of the glass element (the interval between the incident surface and the exit surface of the transmitted light) is determined by the transmittance characteristics of the element, and is preferably 0.1-0.4 mm, more preferably 0.15-0.35 mm, further preferably 0.2-0.3 mm, and still further preferably 0.1 mm or 0.15 mm or 0.2 mm or 0.21 mm or 0.25 mm. In the spectral transmittance in the wavelength range of 500-700 nm, the wavelength (λ 50 ) corresponding to a transmittance of 50% is 625-665 nm, preferably 630-665 nm, and more preferably 645-660 nm. In order to obtain such a glass element, the composition of the glass is adjusted within the range described in the specification of the present application, and the glass element having the above-mentioned spectral characteristics and thickness is processed.

[0120] [Filter]

[0121] The filter related to the present application is a near-infrared filter, and is a filter containing the above-described glass or containing the above-described glass element, and the color correction function of the filter is imparted by the element, and the filter also has various excellent properties of the above-described glass.

[0122] [Apparatus]

[0123] The glass, or the glass element, or the filter of the present application can be manufactured into various devices such as portable communication devices (such as mobile phones, PADs, etc.), smart wearable devices (such as smart watches, VR (virtual reality), AR (augmented reality), etc.), photographic devices (such as single-lens reflex cameras, single-electric cameras, action cameras, etc.), video recording devices, vehicle-mounted devices, display devices, and monitoring devices, etc. by well-known methods.

[0124] Embodiment

[0125] <Embodiment of Glass>

[0126] In order to further clearly illustrate and describe the technical solutions of the present application, the following non-limiting embodiments are provided.

[0127] In this embodiment, the glass having the composition shown in Tables 2-4 is obtained by the above-described glass manufacturing method. In addition, the properties of each glass are measured by the test methods described in the present application, and the measurement results are shown in Tables 2-4.

[0128] Table 2.

[0129]

[0130]

[0131] Table 3.

[0132]

[0133]

[0134] Table 4.

[0135]

[0136]

[0137] The glass manufactured in the above-described embodiments of Tables 2-4 is processed into a glass sheet with a thickness of 0.21 mm, and the spectral transmittance of each embodiment glass is measured according to the test methods described in the specification of the present application, and the corresponding results of each embodiment are shown in Tables 5-7.

[0138] Table 5.

[0139] Example 1# 2# 3# 4# 5# 6# 400 (%)]]> ​ 87.0 84.5 84.8 86.5 85.4 87.2 450 (%)]]> ​ 89.0 86.3 86.6 88.8 86.7 89.1 500 (%)]]> ​ 89.8 88.2 88.5 89.4 88.8 89.8 1100 (%)]]> ​ 2.4 2.5 3.2 0.8 1.0 2.2 50 (nm) ​ 651 634 642 653 651 653

[0140] Table 6.

[0141] Example 7# 8# 9# 10# 11# 12# 400 (%)]]> ​ 87.0 87.2 87.1 87.3 86.3 83.8 450 (%)]]> ​ 89.1 89.3 89.3 89.3 88.6 85.5 500 (%)]]> ​ 89.9 90.1 90.2 90.0 89.2 87.6 1100 (%)]]> ​ 1.6 1.8 2.6 1.4 3.5 2.8 50 (nm) ​ 652 654 650 655 648 652

[0142] Table 7.

[0143] Example 13# 14# 15# 16# 17# 400 (%)]]> ​ 87.5 87.1 87.4 87.5 86.2 450 (%)]]> ​ 89.4 89.1 89.4 89.3 88.6 500 (%)]]> ​ 90.2 90.0 90.2 90.0 89.1 1100 (%)]]> ​ 2.1 1.2 1.3 1.3 1.1 50 (nm) ​ 653 654 652 650 633

[0144] <Embodiment of glass element>

[0145] The glasses of Embodiments 1 to 10 of the present application can be made into glass elements by methods known in the art, and examples thereof include thin plate-shaped glass elements or lenses used in near-infrared light absorbing filters, and the like, which are suitable for color correction for solid-state imaging elements, and have various excellent properties of the above-described glasses.

[0146] <Embodiment of filter>

[0147] The glasses and / or glass elements of Embodiments 1 to 10 of the present application can be made into filters by methods known in the art, and the filters of the present application have color correction functions, and also have various excellent properties of the above-described glasses.

[0148] <Embodiment of device>

[0149] The glasses and / or glass elements and / or filters of the present application can be made into devices such as portable communication devices (e.g., mobile phones), smart wear devices, photographic devices, imaging devices, display devices, and monitoring devices by well-known methods. They can also be used in, for example, imaging devices, sensors, microscopes, medical technology, digital projection, optical communication technology / information transmission, or in imaging devices and apparatuses for the automotive field.

Claims

1. A glass characterized by, The cation component contains, expressed in mole percent: P 5+ : 62-75%; Al 3+ : 1-10%; Cu 2+ : 4-16%; Na + : 4-16%; Ba 2+ : 0.5-10%; Zn 2+ : 0-5%; wherein P 5+ / (Al 3+ + Zn 2+ ) is 6.5-30.

0.

2. The glass of claim 1, wherein, in mole percent, the cation component also contains: Li + : 0-9.5%; and / or K + : 0-8%; and / or Mg 2+ : 0-8%; and / or Ca 2+ : 0-8%; and / or Sr 2+ : 0-8%; and / or Ln 3+ : 0-5%; and / or Si 4+ : 0-3%; and / or B 3+ : 0-3%; and / or Zr 4+ : 0-3%; and / or Sb 3+ : 0-1%; and / or Sn 4+ : 0-1%; and / or Ce 4+ : 0-1%, the Ln 3+ is one or more of La 3+ , Gd 3+ , Y 3+ , Yb 3+ .

3. A glass characterized by, comprising P 5+ , Al 3+ , Cu 2+ , Na + and Ba 2+ in the components thereof, comprising 0 to 5% of Zn 2+ in terms of molar percentage, wherein P 5+ / (Al 3+ + Zn 2+ ) is 6.5 to 30.0, the weather resistance of the glass being Class 3 or more.

4. The glass of claim 3, wherein, The cation component contains, in mole percent: 5+ : 62 to 75 %; and / or Al 3+ : 1 to 10 %; and / or Cu 2+ : 4 to 16 %; and / or Na + : 4 to 16 %; and / or Ba 2+ : 0.5 to 10 %; and / or Li + : 0 to 9.5 %; and / or K + : 0 to 8 %; and / or Mg 2+ : 0 to 8 %; and / or Ca 2+ : 0 to 8 %; and / or Sr 2+ : 0 to 8 %; and / or Ln 3+ : 0 to 5 %; and / or Si 4+ : 0 to 3 %; and / or B 3+ : 0 to 3 %; and / or Zr 4+ : 0 to 3 %; and / or Sb 3+ : 0 to 1 %; and / or Sn 4+ : 0 to 1 %; and / or Ce 4+ : 0 to 1 %, the Ln 3+ being one or more of La 3+ , Gd 3+ , Y 3+ , Yb 3+ .

5. The glass according to any one of claims 1 to 4, characterized in that The components are expressed in mole percent and satisfy one or more of the following eight conditions: 1) P 5+ / (Al 3+ +Zn 2+ ) is 8.0 to 25.0, preferably P 5+ / (Al 3+ +Zn 2+ ) is 9.0 to 20.0, more preferably P 5+ / (Al 3+ +Zn 2 + ) is 10.0 to 15.0; 2) P 5+ (Na + + Zn 2+ ) is 3.5 to 12.0, preferably P 5+ (Na + + Zn 2+ ) is 4.0 to 10.0, more preferably P 5+ (Na + + Zn 2+ ) is 4.5 to 9.0, further preferably P 5+ (Na + + Zn 2+ ) is 5.5 to 8.5; 3) (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.1 to 2.0, preferably (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.1 to 1.5, more preferably (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.2 to 1.2, further preferably (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.2 to 1.0; 4) (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + is from 0.1 to 1.2, preferably (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + is from 0.1 to 1.0, more preferably (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + is from 0.2 to 0.85, further preferably (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + is from 0.3 to 0.8; 5) Na + / (Ca 2+ + Sr 2+ ) is 0.5 to 20.0, preferably Na + / (Ca 2+ + Sr 2+ ) is 1.0 to 15.0, more preferably Na + / (Ca 2+ + Sr 2+ ) is 1.5 to 10.0, further preferably Na + / (Ca 2+ + Sr 2+ ) is 2.0 to 7.5; 6) (Li + + B 3+ ) / (Ca 2+ + Sr 2+ ) is 2.0 or less, preferably (Li + + B 3+ ) / (Ca 2+ + Sr 2+ ) is 1.5 or less, more preferably (Li + + B 3+ ) / (Ca 2+ + Sr 2+ ) is 1.0 or less, further preferably (Li + + B 3+ ) / (Ca 2+ + Sr 2+ ) is 0.05 to 0.8; 7) (Li + + K + ) / Al 3+ is 1.0 or less, preferably (Li + + K + ) / Al 3+ is 0.85 or less, more preferably (Li + + K + ) / Al 3+ is 0.75 or less, further preferably (Li + + K + ) / Al 3+ is 0.1 to 0.6; 8) 10 x (Li + + K + ) / P 5+ is 1.2 or less, preferably 10 x (Li + + K + ) / P 5+ is 1.0 or less, more preferably 10 x (Li + + K + ) / P 5+ is 0.8 or less, further preferably 10 x (Li + + K + ) / P 5+ is 0.05 to 0.

6.

6. The glass according to any one of claims 1 to 4, wherein its components in mole percent, wherein: P 5 + : 63 to 72 %, preferably P 5+ : 64.5 to 70 %; and / or Al 3+ : 2 to 8.5 %, preferably Al 3+ : 2.5 to 7 %; and / or Cu 2+ : 6 to 15 %, preferably Cu 2+ : 8 to 13 %; and / or Na + : 6 to 14 %, preferably Na + : 7 to 12 %; and / or Ba 2+ : 1 to 8.5 %, preferably Ba 2+ : 2 to 7 %; and / or Li + : 0 to 7 %, preferably Li + : 0 to 5 %; and / or K + : 0 to 5 %, preferably K + : 0 to 3 %; and / or Mg 2+ : 0 to 6 %, preferably Mg 2+ : 0 to 5 %; and / or Ca 2+ : 0 to 4.5 %, preferably Ca 2+ : 0 to 3 %; and / or Sr 2+ : 0 to 4.5 %, preferably Sr 2+ : 0 to 3 %; and / or Zn 2+ : 0 to 3 %, preferably Zn 2+ : 0 to 1 %; and / or Ln 3+ : 0 to 2 %, preferably Ln 3 + : 0 to 1 %; and / or Si 4+ : 0 to 2 %, preferably Si 4+ : 0 to 1 %; and / or B 3+ : 0 to 2 %, preferably B 3+ : 0 to 1 %; and / or Zr 4+ : 0 to 2 %, preferably Zr 4+ : 0 to 1 %; and / or Sb 3+ : 0 to 0.5 %, preferably Sb 3+ : 0 to 0.2 %; and / or Sn 4+ : 0 to 0.5 %, preferably Sn 4+ : 0 to 0.2 %; and / or Ce 4+ : 0 to 0.5 %, preferably Ce 4+ : 0 to 0.2 %, the Ln 3+ is one or more of La 3+ , Gd 3+ , Y 3+ , Yb 3+ .

7. The glass according to any one of claims 1 to 4, wherein its components in mole percent, the anion component comprising: O 2- : 95 to 100%, preferably O 2- : 98 to 100%, more preferably O 2- : 99 to 100%; and / or F - : 0 to 5%, preferably F - : 0 to 2%, more preferably F - : 0 to 1%; and / or Cl - + Br - + I - : 0 to 2%, preferably Cl - + Br - + I - : 0 to 1%, more preferably Cl - + Br - + I - : 0 to 0.5%.

8. The glass of claim 7, wherein, its components in mole percent, wherein: (Li + + K + + F - ) / Cu 2+ is 1.0 or less, preferably (Li + + K + + F - ) / Cu 2+ is 0.8 or less, more preferably (Li + + K + + F - ) / Cu 2+ is 0.6 or less, further preferably (Li + + K + + F - ) / Cu 2+ is 0.05 to 0.5; and / or (Zn 2+ + F - ) / Ba 2+ is 1.0 or less, preferably (Zn 2+ + F - ) / Ba 2+ is 0.7 or less, more preferably (Zn 2+ + F - ) / Ba 2+ is 0.5 or less, further preferably (Zn 2+ + F - ) / Ba 2+ is 0.3 or less.

9. The glass according to any one of claims 1 to 4, wherein does not contain Zn 2+ ; and / or does not contain La 3+ ; and / or does not contain Gd 3+ ; and / or does not contain Y 3+ ; and / or does not contain Yb 3+ ; and / or does not contain Si 4+ ; and / or does not contain B 3 + ; and / or does not contain Zr 4+ ; and / or does not contain Fe 3+ ; and / or does not contain V 5+ ; and / or does not contain S 6+ ; and / or does not contain F - ; and / or does not contain Cl - ; and / or does not contain Br - ; and / or does not contain I - .

10. The glass according to any one of claims 1 to 4, wherein 0.1 to 0.4 mm thickness, spectral transmittance τ at a wavelength of 400 nm 400 is 82.0% or more, preferably 84.0% or more, more preferably 86.0% or more; and / or spectral transmittance τ at a wavelength of 450 nm 450 is 85.0% or more, preferably 86.0% or more, more preferably 88.5% or more; and / or spectral transmittance τ at a wavelength of 500 nm 500 is 87.0% or more, preferably 88.0% or more, more preferably 89.0% or more; and / or spectral transmittance τ at a wavelength of 1100 nm 1100 is 5.0% or less, preferably 4.0% or less, more preferably 3.0% or less; and / or wavelength λ at which the spectral transmittance reaches 50% in the wavelength range of 500 to 700 nm 50 is 625 to 665 nm, preferably 630 to 665 nm, more preferably 645 to 660 nm.

11. The glass of claim 10, wherein, The thickness of the glass is 0.15 to 0.35 mm, preferably 0.2 to 0.3 mm, more preferably 0.1 mm or 0.15 mm or 0.2 mm or 0.21 mm or 0.25 mm.

12. The glass according to any one of claims 1 to 4, wherein the weather resistance is Class 3 or more, preferably Class 2 or more, more preferably Class 1; and / or the transformation temperature is 450°C or less, preferably 440°C or less, more preferably 430°C or less, further preferably 420°C or less; and / or the density is 3.30 g / cm 3 or more, preferably 3.20 g / cm 3 or more, more preferably 3.10 g / cm 3 or more, further preferably 3.05 g / cm 3 or more; and / or the coefficient of thermal expansion is 110 x 10 -7 / K or less, preferably 105 x 10 -7 / K or less, more preferably less than 100 x 10 -7 / K; and / or the bubble level is Class A or more, preferably Class A0 or more, more preferably Class A 00 ; and / or the viscosity at 1000°C is 30.0 poise or less, preferably 20.0 poise or less, more preferably 10.0 poise or less; and / or the Young's modulus is 5700 x 10 7 Pa or more, preferably 5950 x 10 7 Pa or more, more preferably more than 6000 x 10 7 Pa, further preferably 6100 x 10 7 Pa or more.

13. Glass element, characterized in that A glass comprising any of the glasses of claims 1-12.

14. Filter, characterized in that A glass article comprising any of the glasses of claims 1-12, or the glass of claim 13.

15. An apparatus, comprising: A filter comprising any of the glasses of claims 1-12, or the glass article of claim 13, or the filter of claim 14.

Images