1. A method for manufacturing a can package-type optical device including the steps of:
(a) preparing a metal plate;
(b) preparing a metal substrate having a bottom surface and an anodized top surface, and a plurality of vertical insulation layers crossing the substrate from the anodized top surface to the bottom surface;
(c) bonding said metal plate on the anodized top surface of said metal substrate;
(d) forming a cavity on an intermediate product that has undergone step (c) in a form of a pit having a side wall and a bottom wall, the pit having a depth reaching the anodized top surface of said metal substrate by passing through said metal plate and an adhesive layer formed by said bonding, the anodized top surface of the metal substrate defining the bottom wall of the cavity, wherein said cavity exposes one of said vertical insulation layers in the bottom wall thereof;
(f) connecting a first wire from an anode of an optical device to a first location on the wall of the cavity, and connecting a second wire from a cathode of the optical device to a second location on the wall of the cavity, the first location on the wall of the cavity isolated from the second location on the wall of the cavity by the exposed vertical insulation layer; and
(h) sealing said cavity by means of a protective plate made from a light-transmitting material, and a can cap formed as a picture frame whose top central portion and bottom are open and encompassing a perimeter of said protective plate.
2. The method for manufacturing a can package-type optical device of claim 1, being characterized in that
in said step (c), a bonding surface of said vertical insulation layer and a bonding surface of said metal plate are bonded after roughening thereof using a mechanical or a chemical method, and an adhesive film is interposed therebetween.
3. The method for manufacturing a can package-type optical device of claim 1, being characterized in that it further includes step (e) for forming a metal plated layer at least on the side wall and on the bottom wall of said cavity excluding said adhesive layer of said intermediate product that has undergone said step (d).
4. The method for manufacturing a can package-type optical device of claim 3, being characterized in that it further includes a step for charging inert gas inside of said cavity before or after said step (h).
5. The method for manufacturing a can package-type optical device of claim 1, being characterized in that it further includes a step for charging inert gas inside of said cavity before or after said step (h).
6. A can package-type optical device manufactured in accordance with claim 1.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
We claim:
1. A process for producing mustard cake from mustard seed, said mustard seeds each having a hull thereon and oil fixed therein, said process comprising the steps of:
a) drying mustard seed to be processed to a starting moisture content;
b) dehulling the dried mustard seed by cracking the dried mustard seed to yield two fractions, cracked mustard seed and loosened cracked seed hulls, and then removing at least a portion of the loosened cracked seed hulls therefrom; the cracked mustard seed fraction and the remaining loosened cracked seed hulls not removed being the dehulled mustard seed;
c) forming mustard cake by pressing the dehulled mustard seed to expel a portion of the oil therefrom; and
d) maintaining the temperature of the dehulled mustard seed during said pressing, being the pressing temperature, below 55 degrees Celsius to minimize the degradation of the myrosinase enzyme present in said dehulled mustard seed by the pressing temperature.
2. The process of claim 1 wherein the loosened cracked seed hulls removed from the cracked mustard seed comprise more than eight percent of the total weight of the starting mustard seed.
3. The process of claim 1 wherein the pressing temperature is in the range of 45 to 55 degrees Celsius.
4. The process of claim 1 wherein the oil content of the mustard cake is in the range of twenty to eight weight percent.
5. The process of claim 1 wherein the starting moisture content is in the range of approximately six to seven percent.
6. The process of claim 1 further comprising milling the mustard cake into mustard powder.
7. A process for producing mustard powder from mustard seed, said mustard seeds each having a hull thereon and oil fixed therein, said process comprising the steps of:
a) drying the mustard seed to be processed to a starting moisture content;
b) dehulling the mustard seed by cracking the dried mustard seed to yield two fractions, cracked mustard seed and loosened cracked seed hulls, and then removing at least a portion of the loosened cracked seed hulls therefrom; the cracked mustard seed fraction and the remaining loosened cracked seed hulls not removed being the dehulled mustard seed;
e) forming mustard cake by pressing the dehulled mustard seed to expel a portion of the oil therefrom;
f) maintaining the temperature of the dehulled mustard seed during said pressing, being the pressing temperature, below 55 degrees Celsius to minimize degradation of the myrosinase enzyme present in said dehulled mustard seed by the pressing temperature; and
g) milling said mustard cake into mustard powder.
8. The process of claim 7 wherein the milling is carried out at a temperature below 30 degrees Celsius.
9. The process of claim 8 wherein the milling is carried out at a temperature in the range of 20 to 30 degrees Celsius.
10. The process of claim 7 wherein the starting moisture content is in the range of approximately six to seven percent.
11. The process of claim 7 further comprising breaking the mustard cake into pieces in advance of milling.
12. The process of claim 11 further comprising drying the mustard cake before breaking.
13. The process of claim 7 further comprising drying the mustard cake before milling.
14. The process of claim 7 further comprising cleaning the mustard powder after milling to remove remaining loosened cracked seed hulls and other impurities.
15. The process of claim 14 wherein the cleaning includes sifting.
16. Mustard powder produced by the process of claim 1.
17. Mustard powder produced by the process of claim 6.
18. Mustard powder produced by the process of claim 7.