AU2013201634B2

System, device and method for dermal imaging

Abstract

In embodiments of the present invention, systems and methods of a non-invasive imaging device may comprise an illumination source comprising an incident light source to direct light upon skin, and a detector for detecting the degree of polarization of light reflected from the skin. A system and method of determining a skin state may be based on an aspect of the polarization of the reflected light.

AU2013201634B2, drawing sheet 1
Sheet 1 of 15

Term

Projected expiry 19 March 2033.

  1. Priority and filed
  2. Granted
  3. Today
  4. Projected expiry

20 claims: 12 independent, 8 dependent

  1. 1
    THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:1. A non-invasive imaging device, comprising: an illumination source comprising an incident light source to direct light upon skin;and a detector for detecting the degree of polarization or a characteristic of light reflected from the skin, wherein the illumination source is configured to (i) direct light upon the skin at a selected angle alpha, and (ii) vary alpha so as to vary the depth of the measurement of the layers in the skin.
  2. 4
    The device of any one of claims 1 to 3, further comprising an optical facility for detecting reflected light from the skin.
  3. 5
    A method of determining a skin state, comprising:illuminating skin with an incident light source at a selected angle alpha;varying alpha so as to vary the depth of the measurement of the layers in the skin. detecting the degree of polarization of light reflected from the skin;and determining a skin state based on an aspect of the polarization or at least one characteristic of the reflected light.
  4. 8
    The method of any one of claims 5 to 7, wherein determining is done using an algorithm.
  5. 9
    The method of any one of claims 5 to 8, further comprising, filtering the reflected light to obtain polarized light of a wavelength defined by the filter output. 2013201634 24 Feb 2015
  6. 10
    A method of determining a moisture level in the skin, comprising:illuminating skin with an incident light source at a selected angle alpha;varying alpha so as to vary the depth of the measurement of the layers in the skin;detecting a degree of polarization and diffusion of the light reflected by the skin structure;and determining a moisture level based on the amount of polarized and diffused reflected light.
  7. 13
    A method of determining elasticity of the skin, comprising:illuminating skin with an incident light source at a selected angle alpha;varying alpha so as to vary the depth of the measurement of the layers in the skin;detecting an aspect of polarization of the light reflected by the skin structure;correlating the aspect of polarization with a concentration of elastin;and determining an elasticity level based on the concentration of elastin.
  8. 14
    A method of determining firmness of the skin, comprising:illuminating skin with an incident light source at a selected angle alpha;varying alpha so as to vary the depth of the measurement of the layers in the skin;detecting an aspect of polarization of the light reflected by the skin structure;correlating the aspect of polarization with a concentration of at least one of an elastin, a collagen, and an activity of a sebaceous gland;and determining firmness based on the concentration of at least one of elastin and collagen and sebaceous gland activity.
  9. 15
    A method for obtaining dermal biophysical properties, comprising:illuminating skin with an incident light source at a selected angle alpha;varying alpha so as to vary the depth of the measurement of the layers in the skin;-542013201634 24 Feb 2015 performing a spectral analysis of image data acquired from the degree of polarization of reflections of incident light from skin structures, wherein the property is at least one of a structure, form, concentration, number, size, state, and stage of at least one of a: melanocyte, melanin, hemoglobin, porphyrin, keratin, carotene, collagen, elastin, sebum, sebaceous gland activity, pore (sweat and sebaceous), moisture level, elasticity, luminosity, firmness, fine line, wrinkle count and stage, pore size, percent of open pores, skin elasticity, skin tension line, spot, skin color, psoriasis, allergies, red area, general skin disorder or infection, tumor, sunburn, rash, scratch, pimple, acne, insect bite, itch, bleeding, injury, inflammation, photodamage, pigmentation, tone, tattoo, percent bum/ bum classification, mole (naevi, nevus), aspect of a skin lesion (structure, color, dimensions/asymmetry), melanoma, dermally observed disorder, cutaneous lesion, cellulite, boil, blistering disease, congenital dermal syndrome, (sub)-cutaneous mycoses, melasma, vascular condition, rosacea, spider vein, texture, skin ulcer, wound healing, post operative tracking, melanocytic lesion, nonmelanocytic lesion, basal cell carcinoma, seborrhoic keratosis, sebum (oiliness), and nailand/or hair-related concern.
  10. 16
    A method for determining a skin state, comprising:obtaining the answers to a series of subjective questions regarding the skin;obtaining an objective skin analysis using the non-invasive imaging device of any one of claims 1 to 4;and combining the subjective and objective results algorithmically to obtain a skin state.
  11. 17
    A system for providing recommendations for skin care based on a skin state and a skin care goal, comprising:obtaining a skin state of an individual by the method of any one of claims 5 to 16 ;categorizing the individual by skin state;and recommending products and regimens that are effective for other individuals of the category in achieving the skin care goal.
  12. 20
    A method for tracking the effectiveness of a skin care product or regimen, comprising:-55obtaining a baseline skin state by the method of any one of claims 5 to 16;recommending a monitoring interval based on at least one of the skin care goal, product, and regimen;obtaining a second skin state by the method of any one of claims 5 to 16 ;comparing the second skin state to the baseline skin state to determine progress towards a skin care goal;and optionally, optimizing the regimen or product in order to improve a skin state. 2013201634 24 Feb 2015 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) WO 2008/086311 4/15 PCT/US2008/050438 0) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) WO 2008/086311 6/15 PCT/US2008/050438 φ Ο) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) WO 2008/086311 7/15 PCT/US2008/050438 U0) 2013201634 19 Mar 2013 Ll This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) WO 2008/086311 9/1 5 PCT/US2008/050438 qj 2013201634 19 Mar 2013 C (D E O) (D s— C (/) s_ D o M— o H—> c (D E ω ω (D tn tn (0 / o o CD This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) WO 2008/086311 10/15 PCT/US2008/050438 2013201634 19 Mar 2013 α ® φ . φ υ 1= =5 ^.o ω Ο) φ ο ω ιΟ I— 1— £ α α π □ α φ CL >4 I— C ω ω ω φ c < C V) υ φ ο ι_ CL Ο I— Φ CL Φ ΙΟ ί- CL * Ό Φ Ό Φ Φ C ω < σ) Ll This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) WO 2008/086311 11/15 PCT/US2008/050438 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) WO 2008/086311 14/15 PCT/US2008/050438 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26) 2013201634 19 Mar 2013 This data, for application number 2008204997, is current as of 2013-03-18 22:06 AEST SUBSTITUTE SHEET (RULE 26)