Light-emitting devices, light-emitting equipment, and measuring devices

The light-emitting device addresses the delay in ToF sensors by incorporating a capacitance unit and switch element to reduce parasitic inductance, ensuring rapid light emission and efficient power usage.

JP7885535B2Active Publication Date: 2026-07-07FUJIFILM BUSINESS INNOVATION CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
FUJIFILM BUSINESS INNOVATION CORP
Filing Date
2022-02-02
Publication Date
2026-07-07

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Abstract

To provide a light emitting apparatus and the like that require short time from when current is started to be consumed for light emission until a predetermined power is reached.SOLUTION: A light emitting apparatus comprises: a light emitting unit that includes luminous elements; a driving unit that includes first elements each connected with a cathode electrode provided on a cathode side of the luminous element, and supplies current for causing light emission to drive the luminous element; and capacitance units that are each provided between the cathode electrode and an anode electrode provided on an anode side of the luminous element in parallel with a current path for causing light emission.SELECTED DRAWING: Figure 4
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