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US 10,433,387 B2Granted
Light emitting device and light emitting and receiving device
AssigneeAsahi Kasei Microdevices Corporation
InventorsHiromi Fujita, Yoshiki Sakurai
Life of this patent
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Abstract
A light emitting device including: a light emitting element; a molded resin portion configured to seal at least a portion of the light emitting element; a temperature information acquiring unit configured to acquire temperature information; a humidity information calculating unit configured to calculate humidity information, based on information relating to at least either electrical characteristics or optical characteristics of the light emitting element and the temperature information; and a controlling unit configured to control the light emitting element, based on the temperature information and the humidity information.
Claims16
A light emitting device comprising:
- a light emitting element;
- a molded resin portion configured to seal at least a portion of the light emitting element;
- a temperature information acquiring unit configured to acquire temperature information;
- a humidity information calculating unit configured to calculate humidity information, based on information relating to at least either electrical characteristics or optical characteristics of the light emitting element and the temperature information;
- a controlling unit configured to control the light emitting element, based on the temperature information and the humidity information;
- and
- an auxiliary element at least a portion of which is sealed by the molded resin portion, wherein
- the light emitting element is disposed to be influenced by a stress of the molded resin portion,
- the temperature information includes information relating to temperature of the light emitting element or temperature of the molded resin portion, and the humidity information includes information relating to humidity of the molded resin portion based on change in swelling stress, and
- at least either the temperature information or the humidity information includes information relating to at least either electrical characteristics or optical characteristics of the auxiliary element.
7 more elements
A light emitting and receiving device comprising:
- a light emitting element;
- a light receiving element configured to receive at least a portion of light output by the light emitting element and output an output signal corresponding to amount of received light;
- a molded resin portion configured to seal at least a portion of the light emitting element;
- a temperature information acquiring unit configured to acquire temperature information;
- a humidity information calculating unit configured to calculate humidity information, based on information relating to at least either electrical characteristics or optical characteristics of the light emitting element and the temperature information;
- a compensating unit configured to compensate the output signal, based on the temperature information and the humidity information;
- and
- an auxiliary element at least a portion of which is sealed by the molded resin portion,
- wherein the light emitting element is disposed to be influenced by a stress of the molded resin portion, and
- the temperature information includes information relating to at least one of temperature of the light receiving element, temperature of the light emitting element, and temperature of the molded resin portion, and the humidity information includes information relating to humidity of the molded resin portion based on change in swelling stress;
- wherein at least either the temperature information or the humidity information includes information relating to at least either electrical characteristics or optical characteristics of the auxiliary element;
- and
- wherein the molded resin portion includes a light receiving side sealing region configured to seal at least a portion of the light receiving element, and a light emitting side sealing region configured to seal at least a portion of the light emitting element.
10 more elements
A light emitting and receiving device comprising:
- a light emitting element;
- a light receiving element configured to receive at least a portion of light output by the light emitting element and output an output signal corresponding to amount of received light;
- a molded resin portion configured to seal at least a portion of the light emitting element;
- a temperature information acquiring unit configured to acquire temperature information;
- a humidity information calculating unit configured to calculate humidity information, based on information relating to at least either electrical characteristics or optical characteristics of the light emitting element and the temperature information;
- a compensating unit configured to compensate the output signal, based on the temperature information and the humidity information;
- and
- a light emitting side auxiliary element at least a portion of which is sealed by the light emitting side sealing region,
- wherein the light emitting element is disposed to be influenced by a stress of the molded resin portion, and
- the temperature information includes information relating to at least one of temperature of the light receiving element, temperature of the light emitting element, and temperature of the molded resin portion, and the humidity information includes information relating to humidity of the molded resin portion based on change in swelling stress;
- wherein the molded resin portion includes a light receiving side sealing region configured to seal at least a portion of the light receiving element, and a light emitting side sealing region configured to seal at least a portion of the light emitting element;
- and
- wherein at least either the temperature information or the humidity information includes information relating to at least either electrical characteristics or optical characteristics of the light emitting side auxiliary element.
10 more elements
Dependencies are inferred from the claim text.