Skin examination device
AssigneeMacquarie Medical Systems Pty Ltd
InventorKar Gay Lim
Life of this patent
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Abstract
A device for examination of a skin site is disclosed comprising a housing, an illumination module arranged within the housing, and operable for emitting and dispersing light. The device further comprises an imaging module arranged within the housing, a lens of the liquid lens type arranged in operable association with the imaging module, and a distortion correction lens. The device is configured operable so that in use (i) light is radiated from the illumination module for projection on to the skin site in a radiated light path; and (ii) light is reflected from the skin site to the imaging module in a reflected light path. The distortion correction lens is arranged in the reflected light path between the skin site and the liquid lens.
Claims22
An optical arrangement for use with a device operable for use in examination of a skin site, the device having or arranged operable with an illumination arrangement configured operable for illuminating the skin site and an imaging module, the optical arrangement comprising:
- a lens of a liquid lens type arranged in operable association with the imaging module, and
- a distortion correction lens,
- the lens and the distortion correction lens being arranged so as to share an axis of the optical arrangement which aligns generally normal with the skin site when the optical arrangement is provided in an in-use orientation,
- the illumination arrangement with which the optical arrangement is operable comprises a plurality of light emitting elements at or near a perimeter of the illumination arrangement, the illumination arrangement further comprising a reflective surface portion configured to be oriented so as to face the skin site so as to be in substantial parallel relation therewith during use of the optical arrangement or the device, whereby the light emitting elements are oriented relative to the reflective surface portion so that each provide a scope of emitted light that disperses about a respective axis, the respective axis is generally parallel with the reflective surface portion, on to a plane that intersects with or passes through the axis of the optical arrangement and which plane is aligned generally perpendicular with the reflective surface portion so as to enable emission of a portion of the scope of emitted light on to the reflective surface portion, and wherein the reflective surface portion is configured operable so as to promote scattering or diffusion of light received from the light emitting elements for reflection from the reflective surface portion for projection on to the skin site for increasing variability of incidence of the reflected scattered or diffused light received across the skin site, and
- wherein the optical arrangement is configured operable so that, in use, on illumination by way of the illumination arrangement light is reflected from the skin site toward the imaging module in a reflected light path, and
- wherein the distortion correction lens is configured to be arranged in the reflected light path between the skin site and the liquid lens.
A device for examination of a skin site comprising:
- a housing,
- an illumination arrangement arranged within the housing, the illumination arrangement comprises a plurality of light emitting elements at or near a perimeter of the illumination arrangement, the illumination arrangement further comprising a reflective surface portion configured to be oriented so as to face the skin site so as to be in substantial parallel relation therewith during use of the device, whereby the light emitting elements are oriented relative to the reflective surface portion so that each provide a scope of emitted light that disperses about a respective axis, the respective axis is generally parallel with the reflective surface portion, on to a plane that intersects with or passes through an axis of the device and which plane is aligned generally perpendicular with the reflective surface portion so as to enable emission of a portion of the scope of emitted light on to the reflective surface portion, and wherein the reflective surface portion is configured operable so as to promote scattering or diffusion of light received from the light emitting elements for reflection from the relative surface portion for projection on to the skin site for increasing variability of incidence of the reflected scattered or diffused light received across the skin site,
- an imaging module arranged within the housing,
- a lens of a liquid lens type arranged in operable association with the imaging module, and
- a distortion correction lens,
- the lens and the distortion correction lens being arranged so as to share the axis of the device, the axis of the device aligns generally normal with the skin site when the device is provided in an in-use orientation,
- wherein, in use, the device is configured operable so that:
- (i) light is radiated by way of the illumination arrangement for projection on to the skin site in a radiated light path;
- and
- (ii) light is reflected from the skin site toward the imaging module in a reflected light path;
- wherein the distortion correction lens is configured to be arranged in the reflected light path between the skin site and the liquid lens.
Dependencies are inferred from the claim text.