摘要:
The optical elements are made from an opto-ceramic material that is characterized by high density, transparency for visible light and IR, high refractive index, high Abbe number and outstanding relative partial dispersion. Mixed oxides are sintered to obtain the opto-ceramic material. The mixed oxides contain zirconium oxide and hafnium oxide mixed with one or more oxides of yttrium, scandium, lanthanide elements, and optionally mixed with one or more of SiO2, Na2O, and TiO2. Alternatively the mixed oxides contain zirconium oxide and hafnium oxide mixed with CaO and/or MgO and optionally mixed with one or more of SiO2, Na2O, and TiO2. In addition, the mixed oxides can also include one or more oxides of Al, Ga, In, and Sc; optionally one or more oxides of yttrium, some lanthanide elements; and optionally one or more of SiO2, Na2O, MgO, CaO, and TiO2.
摘要:
The optical elements are made from an opto-ceramic material that is characterized by high density, transparency for visible light and IR, high refractive index, high Abbe number and outstanding relative partial dispersion. Mixed oxides are sintered to obtain the opto-ceramic material. The mixed oxides contain zirconium oxide and hafnium oxide mixed with one or more oxides of yttrium, scandium, lanthanide elements, and optionally mixed with one or more of SiO2, Na2O, and TiO2. Alternatively the mixed oxides contain zirconium oxide and hafnium oxide mixed with CaO and/or MgO and optionally mixed with one or more of SiO2, Na2O, and TiO2. In addition, the mixed oxides can also include one or more oxides of Al, Ga, In, and Sc; optionally one or more oxides of yttrium, some lanthanide elements; and optionally one or more of SiO2, Na2O, MgO, CaO, and TiO2.
摘要:
The refractive, transmissive or diffractive optical elements are made from a ceramic containing one or more oxides of the type X2O3, which is transmissive for visible light and/or for infrared radiation and which has a cubic crystal structure analogous to that of Y2O3. In preferred embodiments X is Y, Sc, In, or a lanthanide element, namely La to Lu, and in particular is Lu, Yb, Gd, or La. Also mixtures of oxides of the type X2O3 with oxides having different stoichiometries, such as HfO2 and/or ZrO2, may be present, as long as the cubic structure of the ceramic is maintained.
摘要翻译:折射,透射或衍射光学元件由含有一种或多种X 2 O 3的氧化物的陶瓷制成,该氧化物对于可见光和/或用于红外辐射是透射的,并且具有类似于Y 2 O 3的立方晶体结构。 在优选的实施方案中,X是Y,Sc,In或镧系元素,即La至Lu,特别是Lu,Yb,Gd或La,X2O3的氧化物与不同化学计量的氧化物的混合物,例如 可以存在HfO 2和/或ZrO 2,只要保持陶瓷的立方结构即可。
摘要:
The refractive, transmissive or diffractive optical elements are made from a ceramic containing one or more oxides of the type X2O3, which is transmissive for visible light and/or for infrared radiation and which has a cubic crystal structure analogous to that of Y2O3. In preferred embodiments X is Y, Sc, In, or a lanthanide element, namely La to Lu, and in particular is Lu, Yb, Gd, or La. Also mixtures of oxides of the type X2O3 with oxides having different stoichiometries, such as HfO2 and/or ZrO2, may be present, as long as the cubic structure of the ceramic is maintained.
摘要翻译:折射透射或衍射光学元件由含有一种或多种X 2 O 3 O 3类型的氧化物的陶瓷制成,该氧化物可透过可见光和/或用于 红外辐射,其具有类似于Y 2 O 3 3的立方晶体结构。 在优选的实施方案中,X是Y,Sc,In或镧系元素,即La至Lu,特别是Lu,Yb,Gd或La,也是X 2类型的氧化物的混合物, 可以存在与具有不同化学计量的氧化物如HfO 2和/或ZrO 2 2的O 3 3,只要存在三元结构 保持陶瓷。
摘要:
The invention relates to an optical hybrid lens. According to the invention, the lens consists of a substrate (1) that consists of a ceramic having a predetermined shape and at least another material (2), which covers a surface of the substrate (1) at least in certain sections in order to form a lens surface. Use of an optical ceramic as a material enables an additional degree of freedom for adjusting the imaging properties of the hybrid lens. The optical ceramic may have a high refractive index and a low dispersion. The other material can be a material that can be deformed or recast at temperatures that are low in comparison to those of the optical ceramic. In particular the other material can be a low-TG glass or a polymer. The other material is directly applied onto the substrate without a further surface finishing being necessarily required. Other aspects of the invention relate to an optical lens group, an optical image acquisition device, and a process for manufacturing a hybrid lens.
摘要:
The invention relates to an optical hybrid lens. According to the invention, the lens consists of a substrate (1) that consists of a ceramic having a predetermined shape and at least another material (2), which covers a surface of the substrate (1) at least in certain sections in order to form a lens surface.Use of an optical ceramic as a material enables an additional degree of freedom for adjusting the imaging properties of the hybrid lens. The optical ceramic may have a high refractive index and a low dispersion. The other material can be a material that can be deformed or recast at temperatures that are low in comparison to those of the optical ceramic. In particular the other material can be a low-TG glass or a polymer. The other material is directly applied onto the substrate without a further surface finishing being necessarily required.Other aspects of the invention relate to an optical lens group, an optical image acquisition device, and a process for manufacturing a hybrid lens.
摘要:
The invention relates to an optical hybrid lens. According to the invention, the lens consists of a substrate (1) that consists of a ceramic having a predetermined shape and at least another material (2), which covers a surface of the substrate (1) at least in certain sections in order to form a lens surface.Use of an optical ceramic as a material enables an additional degree of freedom for adjusting the imaging properties of the hybrid lens. The optical ceramic may have a high refractive index and a low dispersion. The other material can be a material that can be deformed or recast at temperatures that are low in comparison to those of the optical ceramic. In particular the other material can be a low-TG glass or a polymer. The other material is directly applied onto the substrate without a further surface finishing being necessarily required.Other aspects of the invention relate to an optical lens group, an optical image acquisition device, and a process for manufacturing a hybrid lens.
摘要:
The method for producing at least one rotationally symmetrical lens consisting of an opto-ceramic includes the step of moulding a ceramic green body for the lens, wherein the mould has a shaping surface, which is described by the following equation B: y 1 = cz 2 1 + 1 - ( k + 1 ) c 2 z 2 + a 1 z 2 + a 2 z 4 + a 3 z 6 + a 4 z 8 + … , ( B ) y1 gives a position on an optical axis; x designates a perpendicular distance from the optical axis to the surface; k, c, and a1, a2, a3, a4, . . . are constants describing a surface of the lens to be moulded and z=|x|+b, wherein b is a constant with a value greater than 0 and less than 0.3 mm, which is a measure of a deviation of the shaping surface from the surface of the lens.
摘要翻译:用于制造由光陶瓷构成的至少一个旋转对称透镜的方法包括模制用于透镜的陶瓷生坯的步骤,其中模具具有成形表面,其由下列等式B描述:y = cz 2 1 + 1 - (k + 1)c 2 z 2 + a 1 z 2 + a 2 z 4 + a 3 z 6 + a 4 z 8 + ...,(B)y1 给出光轴上的位置; x表示从光轴到表面的垂直距离; k,c和a1,a2,a3,a4,...。 。 。 是描述待模制透镜的表面的常数,z = | x | + b,其中b是具有大于0且小于0.3mm的常数,其是成形表面与 透镜表面。
摘要:
The moulding tool is a near-net-shape negative mould for shaping a ceramic green body for the lens. The mould has a shaping surface, which is described by the following equation B: y 1 = cz 2 1 + 1 - ( k + 1 ) c 2 z 2 + a 1 z 2 + a 2 z 4 + a 3 z 6 + a 4 z 8 + … , ( B ) y1 gives a position on an optical axis; x designates a perpendicular distance from the optical axis to the surface; k, c, and a1, a2, a3, a4, . . . are constants describing a surface of the lens to be moulded and z=|x|+b, wherein b is a constant with a value greater than 0 and less than 0.3 mm, which is a measure of a deviation of the shaping surface from the surface of the lens.
摘要翻译:成型工具是用于成形用于透镜的陶瓷生坯的近净形阴模。 模具具有成形表面,其由下面的等式B描述:y?1 1 = cz 2 1 + 1 - (k + 1)c 2 z 2 + a 1 z 2 + a 2 z 4 + a 3 z 6 + a 4 z 8 + ...,(B)y1给出光轴上的位置; x表示从光轴到表面的垂直距离; k,c和a1,a2,a3,a4,...。 。 。 是描述待模制透镜的表面的常数,z = | x | + b,其中b是具有大于0且小于0.3mm的常数,其是成形表面与 透镜表面。
摘要:
The method for producing at least one rotationally symmetrical lens consisting of an opto-ceramic includes the step of moulding a ceramic green body for the lens, wherein the mould has a shaping surface, which is described by the following equation B: y 1 = cz 2 1 + 1 - ( k + 1 ) c 2 z 2 + a 1 z 2 + a 2 z 4 + a 3 z 6 + a 4 z 8 + … , ( B ) y1 gives a position on an optical axis; x designates a perpendicular distance from the optical axis to the surface; k, c, and a1, a2, a3, a4, . . . are constants describing a surface of the lens to be moulded and z=|x|+b, wherein b is a constant with a value greater than 0 and less than 0.3 mm, which is a measure of a deviation of the shaping surface from the surface of the lens.
摘要翻译:用于制造由光陶瓷组成的至少一个旋转对称透镜的方法包括模制用于透镜的陶瓷生坯的步骤,其中模具具有成形表面,其由下列等式B描述: = cz 2 1 + 1 - (k + 1)c 2 z 2 + a 1 z 2 + a 2 z 4 + a 3 z 6 + a 4 z z + ...,(B)y1 给出光轴上的位置; x表示从光轴到表面的垂直距离; k,c和a1,a2,a3,a4,...。 。 。 是描述待模制透镜的表面的常数,z = | x | + b,其中b是具有大于0且小于0.3mm的常数,其是成形表面与 透镜表面。