3.
    发明专利
    未知

    公开(公告)号:DE68903825D1

    公开(公告)日:1993-01-21

    申请号:DE68903825

    申请日:1989-10-03

    Abstract: A fluorophosphate optical glass having optical constants, i.e. refractive index (nd) of 1.54 to 1.60 and Abbe number ( nu d) of 68 to 75 and having abnormal partial dispersion represented by a relative partial dispersion of at least 0.537 is provided, which has a chemical composition (% by weight) comprising: s

    6.
    发明专利
    未知

    公开(公告)号:DE60200080T2

    公开(公告)日:2004-08-26

    申请号:DE60200080

    申请日:2002-06-17

    Abstract: The present invention provides an optical glass for press molding, in particular, a low softening point glass which contains, in an oxide glass of phosphate type, a durability improving component in addition to glass forming components, and has a weight loss of at most 0.15 weight % in a durability test, and which is represented, in term of elements for making up the glass, by the following chemical composition (mol %):

    7.
    发明专利
    未知

    公开(公告)号:DE60200080D1

    公开(公告)日:2003-12-11

    申请号:DE60200080

    申请日:2002-06-17

    Abstract: The present invention provides an optical glass for press molding, in particular, a low softening point glass which contains, in an oxide glass of phosphate type, a durability improving component in addition to glass forming components, and has a weight loss of at most 0.15 weight % in a durability test, and which is represented, in term of elements for making up the glass, by the following chemical composition (mol %):

    8.
    发明专利
    未知

    公开(公告)号:DE68920837D1

    公开(公告)日:1995-03-09

    申请号:DE68920837

    申请日:1989-11-27

    Abstract: A fluorophosphate optical glass having optical constants, i.e. a refractive index of 1.45 to 1.54 and an Abbe number of 75 to 90, preferably 75 to 89.5, useful as a lens for an optical instrument to obtain a good quality image, is provided, which has a chemical composition (% by mole) comprising: i

    10.
    发明专利
    未知

    公开(公告)号:DE69601408T2

    公开(公告)日:1999-07-01

    申请号:DE69601408

    申请日:1996-11-20

    Abstract: A fluorophosphate fluorescent glass of the present invention, capable of converting invisible ultraviolet rays into visually observable visible rays with high efficiency and available for controlling the optical axis of a laser beam such as an excimer laser has a chemical composition comprising, at least, (I) phosphorus (P), oxygen (0) and fluorine (F), as glass constituting components, and (II) at least one member selected from divalent europium, terbium and (samarium + manganese), as a fluorescent agent, the divalent europium being contained as an essential component and at least one of samarium and manganese being contained as an essential component when terbium is present. In particular, a fluorophosphate fluorescent glass exhibiting a blue fluorescence containing europium as an essential component and a fluorophosphate fluorescent glass exhibiting a white fluorescence containing at least one of samarium and manganese as an essential component are provided.

Patent Agency Ranking