US Patent Application 18234188. PROJECTION DEVICE AND HEAD-UP DISPLAY simplified abstract

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PROJECTION DEVICE AND HEAD-UP DISPLAY

Organization Name

Panasonic Intellectual Property Management Co., Ltd.

Inventor(s)

Hiroki Hara of Osaka (JP)

Yosuke Asai of Osaka (JP)

Keiji Sugiyama of Kyoto (JP)

Yuji Takase of Osaka (JP)

PROJECTION DEVICE AND HEAD-UP DISPLAY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18234188 titled 'PROJECTION DEVICE AND HEAD-UP DISPLAY

Simplified Explanation

The patent application describes a projection device that includes multiple light sources, a spatial modulation element, a lens, and a first reflective optical member.

  • The device has multiple light sources arranged in a specific direction.
  • A spatial modulation element is used to modulate the incident light into image information and emit it.
  • A lens is included to change the optical path of light from each light source so that it reaches the same region on the spatial modulation element's incident surface.
  • A first reflective optical member is used to deflect the light emitted from the lens towards the spatial modulation element.
  • The first reflective optical member has a specific shape that reflects the light from the lens to be incident on any point on the spatial modulation element's incident surface at a predetermined reference incident angle.


Original Abstract Submitted

A projection device includes: a plurality of light sources arranged in a first direction; a spatial modulation element that modulates incident light into image information and emits the image information; a lens that changes an optical path of light emitted from each of the plurality of light sources such that the light emitted from each light source reaches substantially the same region of an incident surface of the spatial modulation element; and a first reflective optical member that deflects the light emitted from the lens toward the spatial modulation element, the first reflective optical member having a shape that reflects light emitted from the lens so as to be incident on an arbitrary point on the incident surface of the spatial modulation element at a predetermined reference incident angle.