Transparent head for a skin treatment device

Abstract

A transparent cover member for a skin treatment device passes light and heat to a user's skin. The transparent cover member presents a comfortable flat surface at its exterior, and includes features that couple to a heating element that surrounds a plurality of visible light LEDs. The transparent cover member can include retaining features to assist in assembling the head assembly of the skin treatment device.

What is claimed is: 
     
         1 . A transparent cover member for a skin treatment device, comprising:
 a top having a front and a back;   the front being flat and configured to face outward from the skin treatment device;   the back being opposite the front and having:
 a central portion; 
 an outside wall extending down from the front, around an entirety of a perimeter of the front; 
 the back of the transparent cover member having an outside shoulder formed at a bottom of the outside wall, the outside shoulder extending inward from the bottom of the outside wall inward to an inner edge of the of the outside shoulder that meets a standoff wall of a standoff portion; 
 the standoff portion extending downward away from the front and surrounding the central portion; 
 wherein the outside shoulder surrounds the standoff portion; and 
 an inner shoulder formed at an inside of the standoff portion above the bottom of the standoff portion and which extends inward to an inner edge of the inner shoulder, wherein the inner edge of the inner shoulder terminates at an inner wall which extends upwards to an inner surface of the top in the central portion; 
 wherein the standoff portion surrounds the inner shoulder and extends downward, with respect to the front, farther than both the outside shoulder and the inner shoulder, and the inner shoulder is lower than the inner surface of the front and surrounds the inner surface of the top. 
   
     
     
         2 . The transparent cover member of  claim 1 , wherein the transparent cover member is comprised of sapphire glass. 
     
     
         3 . The transparent cover member of  claim 1 , wherein the transparent cover member is comprised of silicon. 
     
     
         4 . The transparent cover member of  claim 1 , wherein the transparent cover member further comprises, on the back, an ultrasonic coupling feature extending from the back in the central portion. 
     
     
         5 . The transparent cover member of  claim 1 , wherein the transparent cover member is comprised of material that is selected to be less transparent for some wavelengths of infrared light while being more transparent for other wavelengths of infrared light. 
     
     
         6 . The transparent cover member of  claim 1 , wherein a surface of front of the transparent cover member is frosted. 
     
     
         7 . The transparent cover member of  claim 1 , further comprising a plurality of retention features that protrude outward from the standoff wall. 
     
     
         8 . The transparent cover member of  claim 7 , wherein the plurality of retention features are formed in a ramp configuration. 
     
     
         9 . A transparent cover member for a skin treatment device that provides light and heat therapy to a user's skin, comprising:
 a flat front configured to face outward from the skin treatment device;   a back that is opposite the flat front, and includes a central portion;   an outside wall extending down from the front around an entirety of a perimeter of the front;   an outside shoulder formed at a bottom of the outside wall, the outside shoulder extending inward from the outside wall to an inner edge of the of the outside shoulder which meets a standoff wall of a standoff portion, the standoff portion extends downward from the inner edge of the outside shoulder in a direction away from the front and the standoff portion surrounds the central portion, wherein the outside shoulder surrounds the standoff portion; and   an inner shoulder formed at an inside of the standoff portion above a bottom of the standoff portion and extending inward from the standoff portion to an inner edge of the inner shoulder, wherein the inner edge terminates at an inner wall which extends upwards to an inner surface of the top in the central portion, wherein the standoff portion surrounds the inner shoulder and extends downward, with respect to the front, farther than both the outside shoulder and the inner shoulder, and the inner shoulder is lower than the inner surface of the front and surrounds the inner surface of the top.   
     
     
         10 . The transparent cover member of  claim 9 , wherein the transparent cover member is comprised of sapphire glass. 
     
     
         11 . The transparent cover member of  claim 9 , wherein the transparent cover member is comprised of silicon. 
     
     
         12 . The transparent cover member of  claim 9 , wherein the transparent cover member is comprised of material that is selectively transparent for selected wavelengths of infrared light. 
     
     
         13 . The transparent cover member of  claim 9 , wherein a surface of the flat front and a surface of the outside wall are frosted. 
     
     
         14 . The transparent cover member of  claim 9 , further comprising a plurality of retention features that protrude outward from the standoff wall. 
     
     
         15 . The transparent cover member of  claim 14 , wherein the plurality of retention features are formed in a ramp configuration. 
     
     
         16 . A monolithic glass head for a skin treatment device, comprising:
 a flat front portion having a front surface that is configured to face outward from the skin treatment device;   a back portion that is opposite the flat front portion and which includes a central portion;   an outside wall portion extending down from the flat front portion around an entirety of a perimeter of the flat front portion;   an outside shoulder, formed at a bottom of the outside wall portion, which extends inward from the outside wall to a standoff wall of a standoff portion, wherein the outside shoulder surrounds the standoff portion;   the standoff portion extends downward, in a direction away from the flat front portion, and surrounds the central portion of the back portion;   a plurality of retention features that protrude outward from the standoff wall; and   an inner shoulder formed at an inside wall of the standoff portion above a bottom of the standoff portion, and which extends inward to an inner edge of the inner shoulder, wherein the inner edge of the inner shoulder terminates at an inner wall which extends upwards to the central portion of the back portion, wherein the standoff portion surrounds the inner shoulder and extends downward, with respect to the front surface, farther than both the outside shoulder and the inner shoulder.   
     
     
         17 . The monolithic glass head of  claim 16 , wherein the transparent cover member consists entirely of sapphire glass or silicon. 
     
     
         18 . The monolithic glass head of  claim 16 , wherein the top of the transparent cover member is frosted. 
     
     
         19 . The monolithic glass head of  claim 16 , wherein the plurality of retention features are formed in a ramp configuration. 
     
     
         20 . The monolithic glass head of  claim 16 , wherein the transparent cover member is comprised of material that is selected to be less transparent for some wavelengths of infrared light while being more transparent for other wavelengths of infrared light.