Fluorescent lamp and manufacturing method thereof
AssigneeDMS Co., Ltd.
InventorYong-Seok Park
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a fluorescent lamp is provided. One of a dispersed metal oxide precursor sol prepared by a sol-gel reaction and a fluorescent substance slurry is coated on a glass tube having at least one open side and then the other of the fluorescent substance slurry and the dispersed metal oxide precursor sol is coated on the glass tube. Next, passivation and fluorescent layers are simultaneously formed by baking the coated layers. Then, air is exhausted out of the glass tube and a discharge gas is injected into the glass tube. Finally, the glass tube is sealed.
Claims18
A method of manufacturing a fluorescent lamp, comprising:
- coating one of a dispersed metal oxide precursor sol prepared by a sol-gel reaction and a fluorescent substance slurry on a glass tube having at least one open side;
- coating the other of the fluorescent substance slurry and the dispersed metal oxide precursor sol on the glass tube;
- forming passivation and fluorescent layers simultaneously by baking the coated layers;
- exhausting air out of the glass tube;
- and injecting gas into the glass tube and sealing the glass tube;
- wherein the passivation layer comprises a metal oxide selected from the group consisting of MgO, CaO, SrO, BaO, a combination thereof.
A method of manufacturing a fluorescent lamp, comprising:
- a step of preparing a dispersed metal oxide precursor sol with sol-gel reaction;
- two steps of coating on a glass tube having at least one open side wherein the one step of coating is performed with a dispersed metal oxide precursor sol, and the other step of coating is performed with a fluorescent substance;
- a step of forming passivation and fluorescent layers simultaneously by baking the coated layers;
- a step of exhausting air out of the glass tube;
- and
- a step of injecting gas into the glass tube and sealing the glass tube, wherein the metal oxide precursor is an alkoxide or a nitrate including metal;
- wherein the nitrate including metal is a nitrate including metal selected from the group consisting of Mg, Ca, Sr, Ba, and a combination thereof.
A method of manufacturing a fluorescent lamp, comprising:
- coating one of a dispersed metal oxide precursor sol prepared by a sol-gel reaction and a fluorescent substance slurry on a glass tube having at least one open side;
- coating the other of the fluorescent substance slurry and the dispersed metal oxide precursor sol on the glass tube;
- forming passivation and fluorescent layers simultaneously by baking the coated layers;
- exhausting air out of the glass tube;
- and injecting gas into the glass tube and sealing the glass tube;
- wherein the metal oxide precursor is an alkoxide or a nitrate including metal selected from the group consisting of Mg, Ca, Sr, Ba, and a combination thereof;
- and
- wherein a concentration of the dispersed metal oxide precursor sol is within a range of 0.1-70%.
Dependencies are inferred from the claim text.