A glass, glass element, and optical filter

Abstract

The present invention provides a glass having excellent transmission properties in the visible region, excellent absorption properties in the near infrared region, and excellent weather resistance. The glass has a cation composition comprising: 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. Through rational component design, the glass obtained by the present invention has excellent transmission properties in the visible region, excellent absorption properties in the near infrared region, and excellent weather resistance.

Description

Technical Field

[0001] This invention relates to a glass, and more particularly to a glass with excellent weather resistance, as well as glass elements and filters made therefrom. Background Technology

[0002] In recent years, wearable devices, such as smartphones, action cameras, VR (virtual reality) devices, and AR (augmented reality) devices, have rapidly gained popularity. The visible light wavelengths that the human eye can perceive are between 400 and 700 nm. Therefore, by using filters that absorb near-infrared light, images with a brightness factor similar to that of the human eye can be obtained. As the demand for color sensitivity correction filters continues to grow, higher requirements are placed on the glass used to manufacture these filters, demanding excellent transmittance in the visible light region and excellent absorption characteristics in the near-infrared region. These devices are used not only in conventional environments but also in various complex and extreme environments, such as high temperature and high humidity environments. Therefore, the glass used in these devices requires excellent weather resistance. Filters for adjusting the visual sensitivity of cameras often use (fluorophosphate) glass containing copper ions; however, (fluorophosphate) glass is known to have poor weather resistance. Specifically, in high temperature and high humidity atmospheres, the phosphate network structure in (fluorophosphate) glass breaks down due to atmospheric moisture, resulting in liquid phosphoric acid dissolving from the glass surface. Furthermore, the dissolved phosphoric acid reacts with the glass, or crystallizes in the missing parts of the phosphoric acid network, leading to surface deterioration of the glass and severely affecting its service life. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a glass that has excellent transmittance characteristics in the visible light region, excellent absorption characteristics in the near-infrared region, and excellent weather resistance.

[0004] The technical solution adopted by this invention to solve the technical problem is:

[0005] (1) A glass, expressed as a molar percentage, containing the following cationic component: P 5+ 62-75%; Al 3+ : 1-10%; Cu 2+ 4-16%; Na + : 4-16%; Ba 2+ 0.5-10%; Zn 2+ : 0-5%; of which P 5+ / (Al 3+ +Zn 2+ The value ranges from 6.5 to 30.0.

[0006] (2) According to the glass described in (1), the cationic component further contains, in molar percentage: 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+ For La 3+ Gd 3+ Y 3+ Yb 3+ One or more of them.

[0007] (3) A type of glass containing P in its composition. 5+ Al 3+ Cu 2+ Na + and Ba 2+ It contains 0-5% Zn, expressed as a mole percentage. 2+ , where P 5+ / (Al 3+ +Zn 2+ The temperature resistance of the glass is 6.5 to 30.0, and the weather resistance of the glass is Class 3 or above.

[0008] (4) According to the glass described in (3), the cationic component contains, in molar percentage: P 5+ 62-75%; and / or Al 3+ : 1-10%; and / or Cu 2+ : 4–16%; and / or Na + : 4–16%; and / or Ba 2+ 0.5–10%; and / or 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 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+ For La 3+ Gd 3+ Y 3+ Yb 3+ One or more of them.

[0009] (5) The glass according to any one of (1) to (4) has a composition expressed as a mole percentage that satisfies one or more of the following eight conditions:

[0010] 1)P 5+ / (Al 3+ +Zn 2+ The value is 8.0–25.0, with P being the preferred option. 5+ / (Al 3+ +Zn 2+ The value is 9.0 to 20.0, with P being more preferred. 5+ / (Al 3 + +Zn 2+ The value is between 10.0 and 15.0.

[0011] 2)P 5+ / (Na + +Zn 2+ The P value is 3.5–12.0, with P being the preferred option. 5+ / (Na + +Zn 2+ The value is 4.0 to 10.0, with P being more preferred. 5+ / (Na + +Zn 2+ The P value is 4.5–9.0, and P is further optimized. 5+ / (Na + +Zn 2+ The value ranges from 5.5 to 8.5.

[0012] 3)(Al 3+ +K + +Zn 2+ ) / Cu 2+ The value is 0.1 to 2.0, preferably (Al). 3+ +K + +Zn 2+ ) / Cu 2+ The value is 0.1 to 1.5, more preferably (Al). 3+ +K + +Zn 2+ ) / Cu2+ The value is 0.2 to 1.2, and further optimization is preferred (Al). 3+ +K + +Zn 2+ ) / Cu 2+ The value is 0.2 to 1.0.

[0013] 4)(Mg 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value is 0.1–1.2, preferably (Mg). 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value is 0.1 to 1.0, more preferably (Mg 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value is 0.2–0.85, with further preference given to (Mg). 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value is 0.3 to 0.8.

[0014] 5) Na + / (Ca 2+ +Sr 2+ The concentration ranges from 0.5 to 20.0, with Na being the preferred choice. + / (Ca 2+ +Sr 2+ The concentration of Na is 1.0 to 15.0, with Na being more preferred. + / (Ca 2+ +Sr 2+ The concentration of Na is 1.5–10.0, with Na being the most preferred. + / (Ca 2+ +Sr 2+ The value ranges from 2.0 to 7.5.

[0015] 6)(Li + +B 3+ ) / (Ca 2+ +Sr 2+ The value is below 2.0, preferably (Li). + +B 3+ ) / (Ca 2+ +Sr 2+The value is 1.5 or less, and more preferably (Li) + +B 3+ ) / (Ca 2+ +Sr 2+ The value is below 1.0, and further optimization is preferred (Li). + +B 3+ ) / (Ca 2+ +Sr 2+ The value ranges from 0.05 to 0.8.

[0016] 7)(Li + +K + ) / Al 3+ For values ​​below 1.0, Li is preferred. + +K + ) / Al 3+ The value is 0.85 or less, more preferably (Li + +K + ) / Al 3+ For values ​​below 0.75, further preference is given to (Li) + +K + ) / Al 3+ The value is 0.1 to 0.6.

[0017] 8)10×(Li + +K + ) / P 5+ The value is below 1.2, preferably 10×(Li) + +K + ) / P 5+ The value is 1.0 or less, more preferably 10×(Li + +K + ) / P 5+ The value is below 0.8, and 10×(Li) is further preferred. + +K + ) / P 5+ It ranges from 0.05 to 0.6.

[0018] (6) The glass according to any one of (1) to (4) has its composition expressed as a mole percentage, wherein: P 5+ 63-72%, P is preferred 5+ 64.5–70%; and / or Al 3+ 2-8.5%, with Al preferred. 3+ 2.5–7%; and / or Cu 2+ 6-15%, preferably Cu 2+ : 8-13%; and / or Na + 6-14%, preferably Na + 7–12%; and / or Ba 2+ 1-8.5%, Ba is preferred. 2+2-7%; and / or Li + 0-7%, preferably Li + : 0-5%; and / or K + 0-5%, K is preferred + 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%, B is preferred 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%, Sn preferred 4+ : 0–0.2%; and / or Ce 4+ 0-0.5%, preferably Ce 4+ : 0~0.2%, the Ln 3+ For La 3+ Gd 3+ Y 3+ Yb 3+ One or more of them.

[0019] (7) The glass according to any one of (1) to (4), wherein the composition is expressed as a mole percentage, and the anionic component contains: O 2- 95-100%, preferred 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 - 0-1%, preferably Cl - +Br - +I - : 0~0.5%.

[0020] (8) The glass according to (7), wherein its composition is expressed as a mole percentage, wherein: (Li + +K + +F - ) / Cu 2+ For values ​​below 1.0, Li is preferred. + +K + +F - ) / Cu 2+ 0.8 or less, more preferably (Li + +K + +F - ) / Cu 2+ For values ​​below 0.6, further optimization is preferred (Li) + +K + +F - ) / Cu 2+ 0.05–0.5; and / or (Zn 2+ +F - ) / Ba 2+ For values ​​below 1.0, Zn is preferred. 2+ +F - ) / Ba 2+ The value is 0.7 or less, preferably (Zn) 2+ +F - ) / Ba 2+ For values ​​below 0.5, further optimization is needed (Zn) 2+ +F - ) / Ba 2+ It is below 0.3.

[0021] (9) The glass according to any one of (1) to (4) does not contain Zn in its composition. 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 - .

[0022] (10) The glass according to any one of (1) to (4), with a thickness of 0.1 to 0.4 mm, has a spectral transmittance τ at a wavelength of 400 nm. 400 The transmittance is 82.0% or more, preferably 84.0% or more, more preferably 86.0% or more; and / or the spectral transmittance τ at a wavelength of 450 nm. 450 The transmittance is 85.0% or more, preferably 86.0% or more, more preferably 88.5% or more; and / or the spectral transmittance τ at a wavelength of 500 nm. 500 The transmittance is 87.0% or more, preferably 88.0% or more, more preferably 89.0% or more; and / or the spectral transmittance τ at a wavelength of 1100 nm. 1100 The transmittance is 5.0% or less, preferably 4.0% or less, more preferably 3.0% or less; and / or the wavelength λ corresponding to a transmittance of 50% in the wavelength range of 500 to 700 nm. 50 The wavelength is 625–665 nm, preferably 630–665 nm, and more preferably 645–660 nm.

[0023] (11) The glass according to (10) has a thickness of 0.15 to 0.35 mm, preferably 0.2 to 0.3 mm, more preferably 0.1 mm, 0.15 mm, 0.2 mm, 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 above, preferably Class 2 or above, more preferably Class 1; and / or the transition temperature is 450°C or below, preferably 440°C or below, more preferably 430°C or below, and even more preferably 420°C or below; and / or the density is 3.30 g / cm³. 3 The preferred value is 3.20 g / cm³. 3 The preferred value is 3.10 g / cm³. 3 The following is a further preferred value: 3.05 g / cm³ 3 The following; and / or the coefficient of thermal expansion is 110×10 -7 / K or less, preferably 105×10 -7 / K or less, more preferably less than 100×10 -7 / K; and / or a bubble degree of A grade or higher, preferably A0 grade or higher, more preferably A. 00 Grade; and / or a viscosity of 30.0 poise or less at 1000°C, preferably 20.0 poise or less, more preferably 10.0 poise or less; and / or a Young's modulus of 5700 × 10⁻⁶. 7Pa or higher, preferably 5950×10 Pa 7 Pa or higher, more preferably greater than 6000 × 10 Pa 7 Pa, more preferably 6100 × 10 7 Pa or above.

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

[0026] (14) A filter containing any one of the glass described in (1) to (12), or containing the glass element described in (13).

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

[0028] The beneficial effects of the present invention are: through reasonable component design, the glass obtained by the present invention has excellent transmittance characteristics in the visible light region, excellent absorption characteristics in the near-infrared region, and excellent weather resistance. Detailed Implementation

[0029] The embodiments of the present invention will now be described in detail. However, the present invention is not limited to the embodiments described below, and appropriate modifications can be made to implement it within the scope of the present invention's objectives. Furthermore, regarding repeated descriptions, although there are appropriate omissions, this will not limit the spirit of the invention.

[0030] [Glass]

[0031] The following describes the range of each component (ingredient) in the glass of this invention. In this specification, unless otherwise specified, the content of a cationic component is expressed as the molar percentage (mol%) of that cationic component relative to all cationic components, and the content of anionic components is expressed as the molar percentage (mol%) of that anionic component relative to all anionic components. The ratio between the contents of cationic components is the ratio of the molar percentage contents of each cationic component; the ratio between the contents of anionic components is the ratio of the molar percentage contents of each anionic component relative to all anionic components; the ratio between the contents of cationic and anionic components is the ratio of the molar percentage contents of a cationic component relative to all cationic components to the molar percentage contents of anionic components relative to all anionic components; the total content of cationic and anionic components refers to the sum of the molar percentage contents of a cationic component relative to all cationic components and the molar percentage contents of anionic components relative to all anionic components.

[0032] Unless otherwise specified in the specific context, the numerical ranges listed herein include upper and lower limits. "Above" and "below" include endpoint values ​​and all integers and fractions included within the range, but are not limited to the specific values ​​listed when the range is defined. The term "and / or" as used herein is inclusive; for example, "A and / or B" means either only A, or only B, or both A and B.

[0033] It should be noted that the ionic valences of the components described below are representative values ​​used for convenience and are not distinguishable from the ionic valences of other components. The ionic valences of the components in glass may exist beyond these representative values. For example, phosphorus (P) typically exists in glass with a +5 valence; therefore, in this patent, it is referred to as "P". 5+ "As a representative value, but there is a possibility that it exists in other ionic valence states, which is also within the scope of protection of this patent."

[0034] <Catonic Components>

[0035] P 5+ It is an indispensable component of the glass framework in this invention, which can promote glass formation and improve the near-infrared absorption performance of the glass. If P 5+ If the content of P is less than 62%, the above-mentioned effect is insufficient, and the near-infrared absorption characteristics of the glass are difficult to meet the design requirements. Therefore, in this invention, P 5+ The content is 62% or more, preferably 63% or more. Through extensive experimental research, the inventors discovered that by making P... 5+ A content of P above 64.5% can improve the weather resistance and Young's modulus of glass, making it more suitable for glass to possess both excellent weather resistance and a high Young's modulus. Therefore, P is preferred. 5+ The content is above 64.5%. However, if P... 5 + When the content of P exceeds 75%, the glass's resistance to crystallization decreases, and its tendency to devitrify increases. Therefore, P 5+ The content of P is 75% or less, preferably 72% or less, and more preferably 70% or less. In some embodiments, P 5+ The content can 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%, 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.

[0036] Al 3+It is beneficial to improve the strength and chemical stability of glass, but if its content is too high, the melting performance and near-infrared light absorption characteristics of the glass will deteriorate. Therefore, in this invention, Al... 3+ The content is 1-10%, preferably 2-8.5%, more preferably 2.5-7%. In some embodiments, Al 3+ The content can 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., 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.

[0037] Cu 2+ Cu is an essential component for the near-infrared light absorption performance of the glass of this invention. If its content is less than 4%, the near-infrared absorption performance of the glass is difficult to meet the design requirements. However, if Cu... 2+ When the Cu content exceeds 16%, the melting temperature of the glass increases, and the devitrification resistance decreases. Therefore, in this invention, Cu... 2+ The content of Cu is 4-16%, preferably 6-15%, and more preferably 8-13%. In some embodiments, Cu 2+ 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.

[0038] Li + It can improve the melting properties of glass, but in this invention, if Li... + If the content of Li is too high, the near-infrared absorption characteristics of the glass will decrease, and its resistance to devitrification and weathering will deteriorate. Therefore, in this invention, Li + The content is 0-9.5%, preferably 0-7%, more preferably 0-5%. In some embodiments, 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 contents of (Li) + +K + ) / Al 3+ By controlling the viscosity below 1.0, the high-temperature viscosity of the glass can be reduced while preventing a deterioration in the glass's bubble content. Therefore, (Li) is preferred. + +K + ) / Al 3+ 1.0 or less, more preferably (Li + +K + ) / Al 3+ For values ​​below 0.85, further optimization is preferred (Li). + +K + ) / Al 3+ For values ​​below 0.75, further preference is given to (Li) + +K + ) / Al 3+ It is 0.1 to 0.6. In some embodiments, (Li + +K + ) / Al 3+ 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.

[0042] In some implementations, by using 10×(Li + +K + ) / P 5+ Controlling the coefficient of thermal expansion of the glass to below 1.2 reduces its thermal expansion coefficient and makes it easier to achieve the desired spectral properties, thus allowing the glass to reach 50% transmittance at a wavelength (λ). 50 The wavelength reaches 625–665 nm, preferably 630–665 nm, and more preferably 645–660 nm. Therefore, 10×(Li) is preferred. + +K + ) / P 5+ The value is 1.2 or less, more preferably 10×(Li) + +K + ) / P 5+ For values ​​below 1.0, 10×(Li) is further preferred.+ +K + ) / P 5+ The value is below 0.8, and more preferably 10×(Li) + +K + ) / P 5+ It is 0.05 to 0.6. In some embodiments, 10×(Li + +K + ) / P 5+ The values ​​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 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 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.

[0043] Zn 2+ It can increase the "alkalinity" of the glass, which is beneficial for the glass to contain more Cu. 2+ Zn can improve the near-infrared absorption properties of glass, but if its content is too high, the weather resistance of the glass will decrease. Therefore, Zn... 2+ The content of Zn is 0-5%, preferably 0-3%, and more preferably 0-1%. In some embodiments, it is further preferred that it does not contain Zn. 2+ In some implementations, Zn 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%, 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.

[0044] In some implementations, P 5+ The content of Al 3+ Zn 2+ Total Al content 3+ +Zn 2+ The ratio P between them 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 10.0 to 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+ The P value is 4.0–10.0, and P is further optimized. 5+ / (Na + +Zn 2+ The P value is 4.5–9.0, with P being the most preferred. 5+ / (Na + +Zn 2+ The value is 5.5 to 8.5. In some implementations, P... 5+ / (Na + +Zn 2+ The value of ) can be 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, 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.

[0046] In some implementations, Al 3+ K + Zn 2+ Total Al content 3+ +K + +Zn 2+ With Cu 2+ The ratio between the contents of Al 3+ +K + +Zn 2+ ) / Cu 2+ By controlling the coefficient of thermal expansion within the range of 0.1 to 2.0, the weather resistance of the glass can be improved while preventing an increase in its coefficient of thermal expansion. Therefore, (Al) is preferred. 3+ +K + +Zn 2+ ) / Cu 2+ The value is 0.1 to 2.0, more preferably (Al). 3+ +K + +Zn 2+ ) / Cu 2+ The value is 0.1–1.5, with further optimization of (Al). 3+ +K + +Zn 2+ ) / Cu 2+ The value is 0.2 to 1.2, and further preferred (Al). 3+ +K + +Zn 2+ ) / Cu 2+ It ranges from 0.2 to 1.0. In some implementations, (Al)3+ +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 + The value is 0.3–0.8. In some embodiments, (Mg) 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + 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, 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 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.

[0052] Ba 2+ It can improve the stability and strength of glass; however, if its content is too high, the density of the glass increases and its resistance to crystallization decreases. Therefore, Ba... 2+ The content is 0.5-10%, preferably 1-8.5%, more preferably 2-7%. In some embodiments, Ba 2+ The content can 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 above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0053] Ln 3+ (Ln 3+ For La 3+ Gd 3+ Y 3+ Yb 3+ One or more of the following (e.g., Ln) are beneficial for improving the chemical stability and hardness of glass, but if their content exceeds 5%, the glass's resistance to devitrification and spectral transmittance deteriorate. Therefore, in this invention, Ln... 3+The content of La is 0-5%, preferably 0-2%, and more preferably 0-1%. In some embodiments, it is further preferred that La is not present. 3+ and / or does not contain Gd 3+ and / or does not contain Y 3+ and / or does not contain Yb 3+ In some implementations, Ln 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%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 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.

[0054] Si 4+ It can improve the chemical stability of glass; however, if its content is too high, the meltability of the glass deteriorates, and the near-infrared light absorption characteristics of the glass decrease. Therefore, Si... 4+ The content of Si is 0-3%, preferably 0-2%, and more preferably 0-1%. In some embodiments, it is further preferred that Si is not present. 4+ In some implementations, Si 4+ 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.

[0055] B 3+ It can lower the glass melting temperature; however, if its content is too high, the near-infrared light absorption characteristics of the glass will decrease. Therefore, B 3+ The content is 0-3%, preferably 0-2%, and more preferably 0-1%. In some embodiments, it is further preferred that it does not contain B. 3+ In some embodiments, it is further preferred that it does not contain B. 3+ In some implementations, 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 ) 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 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, 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.

[0057] Zr 4+ It can improve the chemical stability of glass; however, if its content is too high, the melting properties of the glass will decrease significantly, and the glass's resistance to crystallization will also decrease. Therefore, Zr... 4+ The content is 0-3%, preferably 0-2%, and more preferably 0-1%. In some embodiments, it is further preferred that it does not contain Zr. 4+ In some implementations, Zr 4+ 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.

[0058] Sb 3+ Sn 4+ Ce 4+ The components can be used as clarifying agents to improve the clarification effect of glass and increase the bubble content of glass. In this invention, Sb 3+ Sn 4+ Ce 4+ The content of each is 0-1%, preferably 0-0.5%, more preferably 0-0.2%. In some embodiments, Sb 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%, etc., as well as all ranges and subranges between the above values. In some embodiments, Sn 4+ 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%, etc., as well as all ranges and sub-ranges between the above values. In some embodiments, Ce 4+ 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%, 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.

[0059] <Anionic components>

[0060] O 2- It is the main anionic component in the glass of this invention, which can stabilize the glass network structure, form a stable glass, and also ensure that the copper in the glass is in the form of Cu. 2+ The presence of this form ensures the glass of the present invention's characteristic of absorbing near-infrared light. If O 2- If the content of O is too low, it is difficult to form a stable glass and to achieve the effect of absorbing light in the near-infrared region. Therefore, in this invention, O 2- The content of [O] is 95-100%, preferably 98-100%, and more preferably 99-100%. In some embodiments, O 2- The content can 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 above values. It should be understood that, in the implementation scheme, any of the above ranges can be combined with any other range.

[0061] F - It can lower the melting temperature of glass and increase the visible light transmittance of glass, but if its content is too high, it will affect the glass melting process. - It is volatile, causing environmental pollution, and the internal quality of the glass is difficult to control, resulting in poor weather resistance. Therefore, F -The content is 0-5%, preferably 0-2%, and more preferably 0-1%. In some embodiments, it is further preferred that it does not contain F. - In some implementations, F - 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%, 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.

[0062] In some implementations, by using Li + K + F - Total content of Li + +K + +F - With Cu 2+ The ratio between the contents of (Li) + +K + +F - ) / Cu 2+ Controlling the coefficient of thermal expansion of the glass to below 1.0 reduces its thermal expansion coefficient and makes it easier to achieve the desired spectral properties, thus allowing the glass to reach 50% transmittance at a wavelength (λ). 50 The wavelength reaches 625–665 nm, preferably 630–665 nm, and more preferably 645–660 nm. Therefore, (Li) is preferred. + +K + +F - ) / Cu 2+ 1.0 or less, more preferably (Li + +K + +F - ) / Cu 2+ For values ​​below 0.8, further optimization is preferred (Li). + +K + +F - ) / Cu 2+ For values ​​below 0.6, further preference is given to (Li) + +K + +F - ) / Cu 2+ It is 0.05 to 0.5. In some embodiments, (Li) + +K + +F - ) / Cu 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.

[0063] In some implementations, Zn 2+ F - Total Zn content 2+ +F - with Ba 2+ The ratio between the contents of Zn 2+ +F - ) / Ba 2+ Keeping the Zn content below 1.0 prevents the glass from deteriorating in weather resistance. Therefore, Zn is preferred. 2+ +F - ) / Ba 2+ For values ​​below 1.0, Zn is preferred. 2+ +F - ) / Ba 2+ For values ​​below 0.7, further optimization is needed (Zn) 2+ +F - ) / Ba 2+ For values ​​below 0.5, further preference is given to (Zn) 2+ +F - ) / Ba 2+ It is below 0.3. In some implementations, (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] The cationic components of elements such as As, Pb, Th, Cd, Tl, Os, Be, and Se have been increasingly subject to controlled use in recent years as harmful chemical substances. Environmental protection measures are necessary not only in the glass manufacturing process but also in processing and post-product disposal. Therefore, given the importance of environmental impact, it is preferable to ideally contain virtually none of these elements, except where their contamination is unavoidable. As a result, the glass becomes virtually free of pollutants. Therefore, the glass of this invention can be manufactured, processed, and disposed of even without special environmental countermeasures.

[0068] In some embodiments, to obtain the glass with the excellent properties of the present invention, it is preferable to be free of sulfur. 6+ In some embodiments, to prevent a decrease in visible light transmittance and / or interference with the spectral transmittance of the glass, it is preferable to avoid containing V. 5+ and / or does not contain Fe 3+ .

[0069] The terms "not containing" and "0%" as used herein mean that the component was not intentionally added to the glass of this invention as a raw material; however, as raw materials and / or equipment for producing glass, there may be certain impurities or components that are not intentionally added, which may be present in small or trace amounts in the final glass, and such situations are also within the scope of protection of this patent.

[0070] The properties of the glass of the present invention will now be described.

[0071] <Weather resistance>

[0072] The weather resistance of glass is tested using the following methods:

[0073] In a constant temperature and humidity chamber, with the temperature set at 85℃ and humidity at 85%, the glass to be tested was processed into two large, polished glass samples measuring 30mm × 40mm × 5mm and placed in the chamber. Under natural light, the surface condition was visually observed every 50 hours to confirm the presence of surface corrosion precipitates. The weather resistance of the glass was judged according to Table 1 below, with Class 1 being the best and Class 5 the worst.

[0074] Table 1. Grading and Judgment Criteria for Glass Weather Resistance

[0075] level Judgment criteria Class 1 After 200 hours of constant humidity and heat testing, no obvious precipitates were found on the glass surface. Category 2 After 200 hours of constant humidity and heat testing, the area of ​​precipitates on the glass surface was less than 20%. 3 categories After 100 hours of constant humidity and heat testing, the area of ​​precipitates on the glass surface was less than 20%. 4 categories After 50 hours of constant humidity and heat testing, the area of ​​precipitates on the glass surface was less than 20%. 5 categories After 50 hours of constant humidity and heat testing, the area of ​​precipitates on the glass surface was greater than 20%.

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

[0077] <Transition Temperature>

[0078] Glass transition temperature (T) gTest according to the method specified in GB / T7962.16-2010.

[0079] In some embodiments, the transition temperature (T) of the glass of the present invention is... g The temperature is 450°C or below, preferably 440°C or below, more preferably 430°C or below, and even more preferably 420°C or below. 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, etc., as well as all ranges and sub-ranges between the above values.

[0080] <Density>

[0081] The density (ρ) of the glass was tested according to the method specified in GB / T7962.20-2010.

[0082] In some embodiments, the density (ρ) of the glass of the present invention is 3.30 g / cm³. 3 The preferred value is 3.20 g / cm³. 3 The preferred value is 3.10 g / cm³. 3 The following is a further preferred value: 3.05 g / cm³ 3 Below. In some embodiments, the density (ρ) can be 2.85 g / cm³. 3 2.86 g / cm 3 2.87 g / cm 3 2.88g / cm 3 2.89 g / cm 3 2.90g / cm 3 2.91 g / cm 3 2.92g / cm 3 2.93g / cm 3 2.94 g / cm 3 2.95g / cm 3 2.96g / cm 3 2.97g / cm 3 2.98g / cm 3 2.99g / cm 3 3.0g / cm 3 3.01g / cm 3 3.02g / cm 3 3.03 g / cm 3 3.04 g / cm 3 3.05g / cm 3 3.06 g / cm3 3.07 g / cm 3 3.08g / cm 3 3.09 g / cm 3 3.10 g / cm 3 3.15g / cm 3 3.20g / cm 3 3.25g / cm 3 3.30g / cm 3 And so on, as well as all ranges and subranges between the above values.

[0083] Coefficient of thermal expansion

[0084] The coefficient of thermal expansion of glass (α) 20 / 120 (℃) Data for 20~120℃ were tested according to the method specified in GB / T7962.16-2010.

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

[0086] Young's Modulus

[0087] The Young's modulus (E) of glass is obtained by ultrasonic testing of its longitudinal wave velocity and transverse wave velocity, and then calculated according to the following formula.

[0088]

[0089] G = V S 2 ρ

[0090] Wherein:

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

[0092] G is the shear modulus, Pa;

[0093] V T The transverse wave velocity is in m / s;

[0094] V S The longitudinal wave velocity is given in m / s.

[0095] ρ is the density of glass, in g / cm³ 3 .

[0096] In some embodiments, the Young's modulus (E) of the glass of the present invention is 5700 × 10⁻⁶. 7 Pa or higher, preferably 5950×10 Pa 7 Pa or higher, more preferably greater than 6000 × 10 Pa 7 Pa, more preferably 6100 × 10 7 Pa or higher. In some embodiments, the Young's modulus can be 5700 × 10⁻⁶. 7 Pa, 5750×10 7 Pa, 5800×10 7 Pa, 5850×10 7 Pa, 5900 × 10 7 Pa, 5950×10 7 Pa, 6000×10 7 Pa, 6050×10 7 Pa, 6100×10 7 Pa, 6150×10 7 Pa, 6200×10 7 Pa, 6250×10 7 Pa, 6300×10 7 Pa, 6350×10 7 Pa, 6400 × 10 7 Pa, 6450×10 7 Pa, 6500×10 7 Pa, 6550×107 Pa, 6600×10 7 Pa, 6650×10 7 Pa, 6700×10 7 Pa, 6750×10 7 Pa, 6800×10 7 Pa, etc., and all ranges and subranges between the above values.

[0097] <Effervescence>

[0098] The bubble content of the glass shall be tested according to the method specified in GB / T7962.8-2010.

[0099] In some embodiments, the bubble degree of the glass of the present invention is grade A or above, preferably grade A0 or above, and more preferably grade A. 00 class.

[0100] <High Temperature Viscosity>

[0101] The high-temperature viscosity of glass is tested using the following method: The high-temperature viscosity of glass is tested using the THETA Rheotronic II high-temperature viscometer with the rotation method. The unit of measurement is dPaS (poise). The smaller the value, the lower the viscosity.

[0102] In some embodiments, the viscosity of the glass of the present invention at 1000°C is 30.0 poise or less, preferably 20.0 poise or less, and 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, etc., as well as all ranges and sub-ranges between the above values.

[0103] <Spectral transmittance>

[0104] The spectral transmittance of the glass of this invention refers to the value obtained by a spectrophotometer using the following test method: assuming that the glass sample has two parallel and optically polished planes, light is incident perpendicularly from one parallel plane and exits from the other parallel plane. The transmittance is the intensity of the exited light divided by the intensity of the incident light. This transmittance is also called external transmittance.

[0105] In some embodiments, when the glass thickness 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) Spectral transmittance at 1100nm wavelength (τ) 1100 The content of τ is 5.0% or less, preferably 4.0% or less, and more preferably 3.0% or less. In some embodiments, τ 1100 The values ​​can 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%, etc., as well as all ranges and subranges between the above values.

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

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

[0112] [Manufacturing Method]

[0113] The manufacturing method of the glass of this invention is as follows: The glass of this invention is produced using conventional raw materials and conventional processes. Carbonates, nitrates, phosphates, metaphosphates, sulfates, hydroxides, oxides, fluorides, etc., are used as raw materials. After being batched according to conventional methods, the batched charge is added to a melting furnace (such as a platinum crucible, quartz crucible, etc.) at 800–1100°C for melting. After clarification, stirring, and homogenization, homogeneous molten glass is obtained. This molten glass is then formed in a mold and annealed. Those skilled in the art can reasonably and appropriately select raw materials, process methods, and process parameters according to actual needs.

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

[0115] The glass of the present invention can be manufactured into a sheet glass body by methods such as grinding or polishing, but the method of manufacturing the glass body is not limited to these methods.

[0116] The glass described in this invention can have any reasonably useful thickness.

[0117] [Glass components]

[0118] The glass element of the present invention contains the glass described above, and examples include a thin plate-shaped glass element or lens used in near-infrared light absorption filters, which is suitable for color correction applications of solid-state imaging elements and possesses the various excellent properties of the glass described above.

[0119] Furthermore, the thickness of the glass element (the distance between the incident and exit surfaces of the transmitted light) is determined by the transmittance characteristics of the element, preferably 0.1–0.4 mm, more preferably 0.15–0.35 mm, even more preferably 0.2–0.3 mm, and even more preferably 0.1 mm, 0.15 mm, 0.2 mm, 0.21 mm, or 0.25 mm. Within the spectral transmittance range of 500–700 nm, the wavelength (λ) corresponding to a transmittance of 50% is... 50 The wavelength range is 625–665 nm, preferably 630–665 nm, and more preferably 645–660 nm. To obtain such a glass element, the composition of the glass is adjusted within the range described in this specification, and the glass element is processed to have the thickness and spectral characteristics described above.

[0120] [Filter]

[0121] The filter involved in this invention is a near-infrared filter, which contains the aforementioned glass or glass elements. This element imparts color correction function to the filter, while also possessing the various excellent properties of the aforementioned glass.

[0122] [equipment]

[0123] The glass, or glass element, or filter of the present invention can be manufactured by well-known methods into devices such as portable communication devices (e.g., mobile phones, PADs, etc.), smart wearable devices (e.g., smartwatches, VR (virtual reality), AR (augmented reality) etc.), photographic devices (e.g., SLR cameras, mirrorless cameras, action cameras, etc.), video recording devices, vehicle-mounted devices, display devices, and monitoring devices.

[0124] Example

[0125] <Glass Example>

[0126] To further illustrate and explain the technical solution of the present invention, the following non-limiting embodiments are provided.

[0127] In this embodiment, glass with the composition shown in Tables 2 to 4 was obtained using the glass manufacturing method described above. Furthermore, the properties of each glass were measured using the testing method described in this invention, and the measurement results are shown in Tables 2 to 4.

[0128] Table 2.

[0129]

[0130]

[0131] Table 3.

[0132]

[0133]

[0134] Table 4.

[0135]

[0136]

[0137] The glass prepared according to the embodiments described in Tables 2 to 4 above was processed into glass sheets with a thickness of 0.21 mm, and the spectral transmittance of the glass of each embodiment was measured according to the test method described in the specification of this invention. The results corresponding to each embodiment are shown in Tables 5 to 7.

[0138] Table 5.

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

[0140] Table 6.

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

[0142] Table 7.

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

[0144] <Example of Glass Component>

[0145] The glass of Embodiments 1 to 10# of the present invention can be made into glass elements by methods known in the art. Examples of such glass elements include thin plate-shaped glass elements or lenses used in near-infrared light absorption filters. They are suitable for color correction applications in solid-state imaging elements and possess the various excellent properties of the aforementioned glass.

[0146] <Filter Examples>

[0147] The glass and / or glass elements of Embodiments 1 to 10# of the present invention are made into filters by methods known in the art. The filters of the present invention have color correction function and also possess the various excellent properties of the aforementioned glass.

[0148] <Equipment Example>

[0149] The glass and / or glass elements and / or filters of this invention can be manufactured using well-known methods into devices such as portable communication devices (e.g., mobile phones), smart wearable devices, photographic equipment, video recording equipment, display devices, and monitoring equipment. They can also be used in, for example, imaging equipment, sensors, microscopes, medical technology, digital projection, optical communication technology / information transmission, or as camera equipment and devices in the automotive field.

Claims

1. A type of glass, characterized in that, The cationic component contains, in molar percentage: P 5+ 62-75%; Al 3+ : 1~10%; Cu 2+ : 4~16%; Na + : 4~16%; Ba 2+ 0.5-10%; Zn 2+ : 0~5%; where P 5+ / (Al) 3+ +Zn 2+ The concentrations range from 6.5 to 30.0 (Mg). 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value ranges from 0.1 to 1.

2.

2. The glass according to claim 1, characterized in that, The cationic component also contains, in molar percentage: 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+ For La 3+ Gd 3+ Y 3+ Yb 3+ One or more of them.

3. The glass according to any one of claims 1 to 2, characterized in that, The weather resistance of the glass is Class 3 or above.

4. A type of glass, characterized in that, Its components contain P 5+ Al 3+ Cu 2+ Na + and Ba 2+ Expressed as a mole percentage, it contains P 5+ : 62~72%; Al 3+ : 1~10%; Cu 2+ : 4~16%; Na + : 4~16%; Ba 2+ 0.5-10%; Zn 2+ 0–5%, of which P 5+ / (Al) 3+ +Zn 2+ The concentrations range from 6.5 to 30.0 (Mg). 2+ +Ca 2+ +Sr 2+ +Li + +K + ) / Na + The value is 0.1 to 1.2, and the weather resistance of the glass is Class 3 or above.

5. The glass according to claim 4, characterized in that, The cationic component contains, in molar percentage: 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+ For La 3+ Gd 3+ Y 3+ Yb 3+ One or more of them.

6. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as mole percentages and satisfy one or more of the following eight conditions: 1) P 5+ / (Al) 3+ +Zn 2+ The range is 8.0 to 25.0; 2)P 5+ / (Na + +Zn 2+ ) for 3.5~12.0; 3) (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.1 to 2.0; 4) (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + is 0.1 to 1.0; 5) Na + / (Ca 2+ + Sr 2+ ) is 0.5 to 20.0; 6)(Li + +B 3+ ) / (Ca 2+ +Sr 2+ (The value is below 2.0;) 7)(Li + +K + ) / Al 3+ Below 1.0; 8) 10×(Li + +K + ) / P 5+ It is below 1.

2.

7. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as mole percentages and satisfy one or more of the following eight conditions: 1) P 5+ / (Al) 3+ +Zn 2+ The range is 9.0 to 20.0; 2)P 5+ / (Na + +Zn 2+ ) for4.0~10.0; 3) (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.1 to 1.5; 4) (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + is 0.2 to 0.85; 5) Na + / (Ca 2+ + Sr 2+ ) is 1.0 to 15.0; 6)(Li + +B 3+ ) / (Ca 2+ +Sr 2+ () is below 1.5; 7)(Li + +K + ) / Al 3+ Below 0.85; 8) 10×(Li + +K + ) / P 5+ It is below 1.

0.

8. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as mole percentages and satisfy one or more of the following eight conditions: 1) P 5+ / (Al) 3+ +Zn 2+ The value is between 10.0 and 15.

0. 2)P 5+ / (Na + +Zn 2+ ) for 4.5~9.0; 3) (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.2 to 1.2; 4) (Mg 2+ + Ca 2+ + Sr 2+ + Li + + K + ) / Na + is 0.3 to 0.8; 5) Na + / (Ca 2+ + Sr 2+ ) is 1.5 to 10.0; 6)(Li + +B 3+ ) / (Ca 2+ +Sr 2+ () is below 1.0; 7)(Li + +K + ) / Al 3+ Below 0.75; 8) 10×(Li + +K + ) / P 5+ It is below 0.

8.

9. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as mole percentages and satisfy one or more of the following six conditions: 1)P 5+ / (Na + +Zn 2+ ) for5.5~8.5; 2) (Al 3+ + K + + Zn 2+ ) / Cu 2+ is 0.2 to 1.0; 3)Na + / (Ca 2+ +Sr 2+ ) for 2.0~7.5; 4)(Li + +B 3+ ) / (Ca 2+ +Sr 2+ The value ranges from 0.05 to 0.

8. 5) (Li + + K + ) / Al 3+ is 0.1 to 0.6; 6) 10×(Li + +K + ) / P 5+ is from 0.05 to 0.

6.

10. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as mole percentages, where: P 5+ 63–72%; and / or Al 3+ : 2–8.5%; and / or Cu 2+ : 6–15%; and / or Na + : 6–14%; and / or Ba 2+ : 1–8.5%; and / or Li + : 0–7%; and / or K + 0–5%; and / or Mg 2+ : 0–6%; and / or Ca 2+ : 0–4.5%; and / or Sr 2+ : 0–4.5%; and / or Zn 2+ : 0–3%; and / or Ln 3+ : 0–2%; and / or Si 4+ : 0–2%; and / or B 3+ : 0–2%; and / or Zr 4 + : 0–2%; and / or Sb 3+ : 0–0.5%; and / or Sn 4+ : 0–0.5%; and / or Ce 4+ 0-0.5%, the Ln 3+ For La 3+ Gd 3 + Y 3+ Yb 3+ One or more of them.

11. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as mole percentages, where: P 5+ : 64.5–70%; and / or Al 3+ 2.5–7%; and / or Cu 2+ : 8–13%; and / or Na + 7–12%; and / or Ba 2 + : 2-7%; and / or Li + : 0–5%; and / or K + : 0–3%; and / or Mg 2+ : 0–5%; and / or Ca 2+ : 0–3%; and / or Sr 2+ 0–3%; and / or Zn 2+ : 0~1%; and / or Ln 3+ : 0~1%; and / or Si 4+ : 0–1%; and / or B 3+ : 0–1%; and / or Zr 4+ : 0~1%; and / or Sb 3+ : 0~0.2%; and / or Sn 4+ : 0–0.2%; and / or Ce 4+ : 0~0.2%, the Ln 3+ For La 3+ Gd 3+ Y 3 + Yb 3+ One or more of them.

12. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as a mole percentage, and the anionic component contains: O 2- : 95-100%; and / or F - : 0–5%; and / or Cl - +Br - +I - : 0-2%.

13. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as a mole percentage, and the anionic component contains: O 2- : 98-100%; and / or F - : 0–2%; and / or Cl - +Br - +I - : 0~1%.

14. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components are expressed as a mole percentage, and the anionic component contains: O 2- : 99-100%; and / or F - : 0–1%; and / or Cl - +Br - +I - : 0~0.5%.

15. The glass according to claim 12, characterized in that, Its components are expressed as mole percentages, of which: (Li + +K + +F - ) / Cu 2+ Below 1.0; and / or (Zn 2+ +F - ) / Ba 2+ It is below 1.

0.

16. The glass according to claim 12, characterized in that, Its components are expressed as mole percentages, of which: (Li + +K + +F - ) / Cu 2+ Below 0.8; and / or (Zn 2+ +F - ) / Ba 2+ It is below 0.

7.

17. The glass according to claim 12, characterized in that, Its components are expressed as mole percentages, of which: (Li + +K + +F - ) / Cu 2+ Less than 0.6; and / or (Zn 2+ +F - ) / Ba 2+ It is below 0.

5.

18. The glass according to claim 12, characterized in that, Its components are expressed as mole percentages, of which: (Li + +K + +F - ) / Cu 2+ 0.05–0.5; and / or (Zn 2+ +F - ) / Ba 2+ It is below 0.

3.

19. The glass according to any one of claims 1-2 and 4-5, characterized in that, Its components do 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 - .

20. The glass according to any one of claims 1-2 and 4-5, characterized in that, Glass with a thickness of 0.1–0.4 mm, spectral transmittance τ at a wavelength of 400 nm. 400 It is above 82.0%; and / or the spectral transmittance τ at a wavelength of 450 nm. 450 It is above 85.0%; and / or the spectral transmittance τ at a wavelength of 500 nm. 500 The spectral transmittance τ is above 87.0%; and / or at a wavelength of 1100 nm. 1100 The transmittance is less than 5.0%; and / or the wavelength λ corresponding to a transmittance of 50% in the spectral transmittance range of 500–700 nm. 50 The wavelength range is 625–665 nm.

21. The glass according to any one of claims 1-2 and 4-5, characterized in that, Glass with a thickness of 0.1–0.4 mm, spectral transmittance τ at a wavelength of 400 nm. 400 It is above 84.0%; and / or the spectral transmittance τ at a wavelength of 450 nm. 450 It is above 86.0%; and / or the spectral transmittance τ at a wavelength of 500 nm. 500 The spectral transmittance τ is above 88.0%; and / or at a wavelength of 1100 nm. 1100 The transmittance is below 4.0%; and / or the wavelength λ corresponding to a transmittance of 50% in the spectral transmittance range of 500–700 nm. 50 The wavelength range is 630–665 nm.

22. The glass according to any one of claims 1-2 and 4-5, characterized in that, Glass with a thickness of 0.1–0.4 mm, spectral transmittance τ at a wavelength of 400 nm. 400 It is above 86.0%; and / or the spectral transmittance τ at a wavelength of 450 nm. 450 It is above 88.5%; and / or the spectral transmittance τ at a wavelength of 500 nm. 500 The spectral transmittance τ is above 89.0%; and / or at a wavelength of 1100 nm. 1100 The transmittance is below 3.0%; and / or the wavelength λ corresponding to a transmittance of 50% in the wavelength range of 500–700 nm. 50 The wavelength is 645–660 nm.

23. The glass according to claim 20, characterized in that, The thickness of the glass is 0.15 to 0.35 mm.

24. The glass according to claim 20, characterized in that, The thickness of the glass is 0.2 to 0.3 mm.

25. The glass according to claim 20, characterized in that, The thickness of the glass is 0.1mm, 0.15mm, 0.2mm, 0.21mm, or 0.25mm.

26. The glass according to any one of claims 1-2 and 4-5, characterized in that, The glass has a weather resistance of Class 2 or higher; and / or a transition temperature of 450°C or lower; and / or a density of 3.30 g / cm³. 3 The following; and / or the coefficient of thermal expansion is 110×10 -7 / K or below; and / or a foaming degree of A or above; and / or a viscosity of 30.0 poise or below at 1000℃; and / or a Young's modulus of 5700 × 10 7 Pa or above.

27. The glass according to any one of claims 1-2 and 4-5, characterized in that, The glass has a weather resistance rating of Class 1; and / or a transition temperature below 440°C; and / or a density of 3.20 g / cm³. 3 The following; and / or the coefficient of thermal expansion is 105 × 10 -7 / K or below; and / or a foaming degree of A0 or above; and / or a viscosity of 20.0 poise or below at 1000℃; and / or a Young's modulus of 5950 × 10 7 Pa or above.

28. The glass according to any one of claims 1-2 and 4-5, characterized in that, The glass has a transition temperature below 430°C; and / or a density of 3.10 g / cm³. 3 The following; and / or coefficients of thermal expansion are less than 100 × 10 -7 / K; and / or bubble degree is A 00 Grade; and / or viscosity below 10.0 poise at 1000℃; and / or Young's modulus greater than 6000 × 10⁻⁶. 7 Pa.

29. The glass according to any one of claims 1-2 and 4-5, characterized in that, The glass has a transition temperature below 420°C; and / or a density of 3.05 g / cm³. 3 The following; and / or Young's modulus is 6100×10 7 Pa or above.

30. A glass element, characterized in that, The glass comprising any one of claims 1 to 29.

31. A filter, characterized in that, It contains the glass according to any one of claims 1 to 29, or the glass element according to claim 30.

32. A device, characterized in that, The glass comprises any one of claims 1 to 29, or comprises the glass element of claim 30, or comprises the filter of claim 31.

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