Method and device for resin coating
AssigneePanasonic Corporation
InventorsKentaro Nishiwaki, Tomonori Itoh, Masaru Nonomura
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Abstract
A device for resin coating is used for producing an LED package including an LED element covered with resin containing phosphor. In a state in which a trial coating material 43 is located by a clamp unit 63, a trial coating of resin applied to the trial coating material 43 is irradiated with excitation light and light emitted from the phosphor contained in the resin is measured by an emission characteristic measuring unit 39. A deviation of the measurement result of the emission characteristic measuring unit from a prescribed emission characteristic is determined, and then a proper amount of resin to be applied to the LED element is derived for actual production based on the deviation.
Claims10
A device for resin coating, comprising:
- a resin coating part that applies resin containing phosphor;
- a first coating control unit that controls the resin coating part to apply the resin to a trial coating material;
- a second coating control unit that controls the resin coating part to apply the resin to an LED element;
- a trial coating material loading part loaded with the trial coating material on which the resin has been applied under the control of the first coating control unit;
- a light source that emits excitation light for exciting the phosphor;
- an emission characteristic measuring unit that measures an emission characteristic of light emitted from the resin by irradiating the trial coating of the resin on the trial coating material with the excitation light;
- a clamp unit that locates the trial coating material;
- a coating amount deriving unit that determines a deviation of a measurement result of the emission characteristic measuring unit from a prescribed emission characteristic and derives, based on the deviation, an amount of resin coating to be applied to the LED element;
- and
- a production unit that notifies the amount of resin coating to the second coating control unit to apply the amount of resin coating to the LED element.
A method for resin coating, comprising:
- applying, for emission characteristic measurement, resin containing phosphor to a trial coating material by a resin dispensing unit that dispenses the resin;
- placing the trial coating material with the trial coating of the resin into a trial coating material loading part;
- emitting excitation light for exciting the phosphor from a light source to the trial coating of the resin on the trial coating material in a state in which the trial coating material being measured is located by a clamp unit;
- measuring an emission characteristic of light emitted from the resin by the excitation light;
- determining a deviation of a measurement result in the emission characteristic measuring step from a prescribed emission characteristic and deriving, based on the deviation, an amount of resin coating to be applied to an LED element;
- and
- applying the amount of resin coating to the LED element by notifying the derived amount of resin coating to a coating control unit that controls the resin dispensing unit.
Dependencies are inferred from the claim text.