• Patent Title: Freeform head mounted display
  • Application No.: US16720705
    Application Date: 2019-12-19
  • Publication No.: US11237394B2
    Publication Date: 2022-02-01
  • Inventor: Ozan Cakmakci
  • Applicant: GOOGLE LLC
  • Applicant Address: US CA Mountain View
  • Assignee: GOOGLE LLC
  • Current Assignee: GOOGLE LLC
  • Current Assignee Address: US CA Mountain View
  • Main IPC: G02B27/01
  • IPC: G02B27/01 G02B17/08
Freeform head mounted display
Abstract:
An optical apparatus for a near-eye display includes a microdisplay to emit image light and one or more field lenses positioned to receive the image light from the microdisplay. The one or more field lenses have a combined optical power to form a curved intermediate image. A freeform combiner, having an eyeward side and an external side, is positioned to receive the image light from the one or more field lenses and reflect the image light. A curved intermediate image is formed between the freeform combiner and the one or more field lenses.
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