Optical colored glasses

1. Optical colored glass

characterized by

a composition (in % in weight) of

SiO 2

50-62

K 2 O

10-25

Na 2 O

 0-14

Al 2 O 3

0-2

B 2 O 3

3-5

ZnO

13.5-37  

F

0-1

TiO 2

0-7

In 2 O 3

0-2

Ga 2 O 3

0-2

SO 3

0-1

SeO 2

0-1

C

0-1

M I M III Y II 2

0.1-3  

whereby M I =Cu + and/or Ag +

M III =In 3+ and/or Ga 3+ and/or

Al 3+ , Y II ═S 2− and/or Se 2−

with at least 0.1% in weight of the oxide (M 2 O 3 ) of the M III which is/are present in M I M III Y II 2 , and with at least 0.2% in weight of the oxide, of Y II , which is/are present in M I M III Y II 2 ,

as well as usual refining media if necessary in usual quantities.

2. Optical colored glass according to claim 1 ,

characterized by

a composition (in % in weight) of

SiO 2

50-62

K 2 O

18-25

Na 2 O

 0-14

B 2 O 3

3-5

ZnO

13.5-37  

F

0-1

Al 2 O 3

0-2

TiO 2

0-7

In 2 O 3

0-2

Ga 2 O 3

0-2

SO 3

0-1

SeO 2

0-1

C

0-1

M I M III Y II , whereby M I =

Cu + and/or Ag + , M III =

In 3+ and/or Ga 3+ , Y II 2

=S 2− and/or Se 2−

with at least 0.1% in weight of the oxide (M 2 O 3 ) of the M III which is/are present in M I M III Y II 2 , and with at least 0.2% in weight of the oxide, of Y II , which is/are present in M I M III Y II 2 ,

as well as usual refining media if necessary in usual quantities.

3. Optical colored glass, according to claim 1 ,

thus characterized

that it additionally contains (in % in weight on oxide basis)

MgO

0-4 

CaO

0-10

BaO

0-10

SrO

0-10

P 2 O 5

0-10

as well as usual refining media if necessary in usual quantities.

4. Optical colored glass according to claim 3 , characterized by the fact that it contains between 0.1 and 0.5% in weight CuIn(Se 1-x S x ) 2 .

5. Optical colored glass according to claim 4 with an edge wavelength λC between 360 nm and 1200 nm.

6. Optical colored glass according to claim 2 with an edge wavelength λC between 400 nm and 1200 nm.

7. Optical colored glass according to claim 1 , characterized by the fact that it contains between 0.1 and 0.5% in weight CuAl (Se 1-x S x ) 2 .

8. Optical colored glass according to claim 7 with an edge wavelength λC between 360 nm and 460 nm.

9. Procedure for the production of optical colored glasses of the composition range

SiO 2

50-62

K 2 O

10-25

Na 2 O

 0-14

MgO

0-4

CaO

 0-10

BaO

 0-10

SrO

 0-10

P 2 O 5

 0-10

Al 2 O 3

0-2

B 2 O 3

3-5

ZnO

13.5-37  

F

0-1

TiO 2

0-7

In 2 O 3

0-2

Ga 2 O 3

0-2

SO 3

0-1

SeO 2

0-1

C

0-1

M I M III Y II 2

whereby M I =Cu + , Ag +

M III =In 3+ , Ga 3+ , Al 3+

Y II S 2− , Se 2−

with at least 0.1% in weight of the oxide (M 2 O 3 ) of the M III which is/are present in M I M III Y II 2 , and with at least 0.2% in weight of the oxide, of Y II , which is/are present in M I M III Y II 2 ,

as well as usual refining media if necessary in usual quantities.

with the process steps glass batch preparation, melting of the glass, cooling, warming up, whereby 0.1-4% in weight ZnS and/or ZnSe are added to the glass batch.

10. Optical square edge filter consisting essentially of a glass according to claim 1 .

11. Optical square edge filter consisting essentially of a glass manufactured by the process of claim 9 .

12. Optical colored glass according to claim 1 , characterized by the fact that it contains between 0.1 and 0.5% in weight CuIn(Se 1-x S x ) 2 .

13. Optical colored glass according to claim 2 , characterized by the fact that it contains between 0.1 and 0.5% in weight CuIn(Se 1-x S x ) 2 .

14. Optical colored glass according to claim 3 with an edge wavelength λC between 400 nm and 1200 nm.

15. Optical colored glass according to claim 4 with an edge wavelength λC between 400 nm and 1200 nm.

16. Optical colored glass according to claim 1 with an edge wavelength λC between 360 nm and 1200 nm.

17. Optical colored glass according to claim 4 with an edge wavelength λC between 360 nm and 1200 nm.

18. Optical colored glass according to claim 3 with an edge wavelength λC between 360 nm and 1200 nm.