Light emitting device, light source device, and method for manufacturing the light emitting device

The light emitting device with a molded resin member and specific geometric features addresses broad light distribution issues by narrowing the light beam, improving directional control and reducing unwanted illumination.

JP7776754B2Active Publication Date: 2025-11-27NICHIA CORP
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
JP2022173751
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-11-16
Filing Date
2022-10-28
Publication Date
2025-11-27
Estimated Expiration
2042-10-28

Smart Images

  • Figure 0007776754000001
    Figure 0007776754000001
  • Figure 0007776754000002
    Figure 0007776754000002
  • Figure 0007776754000003
    Figure 0007776754000003
Patent Text Reader

Abstract

To provide a light-emitting device in which a light distribution is narrowed.SOLUTION: A light-emitting device 100 comprises: a light-emitting element 20; a first lead 12 onto which the light-emitting element 20 is mounted; a second lead 11 that is electrically connected with the light-emitting element 20 via a conductive member 21, and is arranged along a X-direction as a first direction separate from the first lead 12; and a mold resin member 40 that directly or indirectly covers the light-emitting element 20. The mold resin member 40 comprises: a lens part 43 that is positioned above the light-emitting element 20; a fixing part 41 that fixes the first lead 12 and the second lead 11; and an inclination part 42 that is positioned between the lens part 43 and the fixing part 41, and is at least partially expanded and inclined from a boundary with the lens part 43 to a boundary with the fixing part 41. The light-emitting element 20 is arranged in the fixing part 41.SELECTED DRAWING: Figure 2B
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Semiconductor light emitting device

    JP1986216491A

  • Full-color led display

    JP1995335942A

  • Optical device and apparatus using the same

    JP2002094129A

  • LED module

    JP2010040910A

  • Light-emitting device and method for manufacturing the same

    JP2011249433A