公开(公告)号：US11099469B1

公开(公告)日：2021-08-24

申请号：US16680299

申请日：2019-11-11

Applicant: Amazon Technologies, Inc.

Inventor： Gareth James Selfe ,  Eric Gifford Marason ,  Suchit Shah ,  Robert Domingo Lau ,  John Larkin ,  Mark Steven Pearson

IPC: G03B21/20 ,  G03B21/28 ,  G02B3/08

Abstract: Devices, systems, and methods are provided for an ultra-short throw projector. The projector may include an illuminator having an ellipsoidal reflector, a light emitting diode (LED) positioned inside of the ellipsoidal reflector, and a Fresnel lens positioned inside of the ellipsoidal reflector. The projector may include a circular transmissive liquid crystal display (LCD) and a three-element plastic projection lens positioned outside of the ellipsoidal reflector, wherein the circular transmissive LCD is positioned between the ellipsoidal reflector and the three-element plastic projection lens, wherein the ellipsoidal reflector reflects light emitted by the LED, wherein the Fresnel lens refracts light emitted by the LED, and wherein the three-element plastic projection lens projects the reflected light and the refracted light.

公开(公告)号：US09857664B1

公开(公告)日：2018-01-02

申请号：US15266661

申请日：2016-09-15

Applicant: Amazon Technologies, Inc.

Inventor： David Tang ,  John Larkin ,  Isabella Talley Lewis ,  Cameron Bo Logsdon ,  Michael Paul Nelson ,  Gregory James Nyssen ,  Guruprasad Ramanathan ,  Srivatsan Subbarayan ,  Robi Thomas ,  William Franklin Troutman, Jr. ,  Bradley David Urban

IPC: G03B15/02 ,  G03B15/06 ,  F21V29/70 ,  F21V29/508 ,  F21V23/04 ,  F21Y115/10

CPC classification number: G03B15/06 ,  F21V23/0414 ,  F21V29/508 ,  F21V29/70 ,  F21Y2115/10

Abstract: An example enclosure includes a base, a plurality of walls extending from the base, and a top disposed opposite the base and connected to at least one of the plurality of walls. The enclosure also includes a light assembly configured to illuminate an interior space of the enclosure. The light assembly includes a diffuser, a heat sink connected to the diffuser, a substrate connected to the heat sink, and a light source connected to the substrate. The diffuser may be connected to one of the top or the base such that the heat sink is spaced from the one of the top or the base. Additionally, the top is moveable toward the base to transition the enclosure from an expanded state to a collapsed state.