Speculum tip element and method for optimizing light efficiency/emission of a speculum tip element
An otoscopic tip element having an axisymmetric hollow body having a substantially conical shape and made from a moldable plastic material includes a distal opening, a proximal opening, an interior surface, and an exterior surface. To maximize light transmissivity, a distal portion of the interior surface is provided with a smooth or polished surface finish and a proximal portion of the interior surface and the outer surface is provided with a textured surface finish such that light from a light source of an otoscope can be axially directed through the hollow body for emission through the distal opening, as well circumferentially through the exterior surface. The surface finish and color/tint of the speculum tip element can be adjusted or tuned to promote axial, circumferential and total light output relative to an intended medical target.
1. A method for maximizing the light transmissivity of a speculum tip element, the speculum tip element having an axisymmetric hollow body including a substantially conical shape including a distal opening and a proximal opening, the method comprising:
molding the speculum tip element from a plastic material that is one of optically translucent or transparent to enable both axial and circumferential transmissivity of visible light through the distal opening and the body, respectively, the speculum tip element having an exterior surface and an interior surface;
providing the exterior surface of the speculum tip element and a proximal portion of the interior surface with a textured surface finish, in which the textured surface finish of the exterior surface is between VDI 29 and VDI 36; and
providing a distal portion of the interior surface of the speculum tip element with a smooth polished surface finish.
2. The method according to claim 1 , wherein the plastic material is optically transparent.
3. The method according to claim 1 , further comprising:
roughening at least the smooth polished surface finish of the distal portion of the interior surface in order to increase circumferential illumination of the speculum tip element.
4. The method according to claim 3 , wherein roughening the interior surface includes adding linear or radial scratches to at least the smooth polished surface finish of the distal portion of the interior surface.
5. The method according to claim 1 , in which the textured surface finish of the exterior surface is between VDI 30 and VDI 32.
6. The method according to claim 5 , in which a percentage of total illumination output of the speculum tip element is greater than 80 percent of an illumination output of an attached light source.
7. The method according to claim 1 , in which a percentage of peripheral illumination of the speculum tip element is greater than 10 percent of a total illumination output of the speculum tip element.
8. An speculum tip element comprising:
an axisymmetric hollow body having a substantially conical shape;
a distal opening;
an opposing proximal opening;
an interior surface having a distal portion and a proximal portion; and
an exterior surface,
the hollow body being made from a moldable plastic and having a roughened exterior surface, a roughened proximal portion of the interior surface and a smooth and polished distal portion of the interior surface and in which the plastic is at least optically translucent in order to permit light from a coupled light source to be emitted through the distal opening, as well as be emitted circumferentially from the exterior surface and in which the exterior surface has a textured surface finish between VDI 29 and VDI 36.
9. The speculum tip element according to claim 8 , in which the speculum tip element is fabricated from an optically transparent plastic.
10. The speculum tip element according to claim 8 , in which the hollow body is made from a colored or tinted plastic material.
11. The speculum tip element according to claim 8 , in which an amount of peripheral illumination output relative to a total illumination output of the speculum tip element is more than 10 percent.
12. The speculum tip element according to claim 8 , in which an amount of total illumination output of the speculum tip element is greater than 80 percent, as compared to that of the light source.
13. A speculum tip element comprising:
an axisymmetric hollow body made from a moldable plastic material;
a distal tip opening;
a proximal tip opening;
an interior surface; and
an exterior surface, the hollow body being defined by a truncated frusto-conical shape in which the distal tip opening has a diameter that is smaller than a diameter of the proximal tip opening, a distal portion of the interior surface having a smooth surface finish and a proximal portion of the interior surface and the exterior surface having a roughened textured surface finish such that light from a light source of an otoscope can be axially directed through the axisymmetric hollow body for emission through the distal tip opening, as well circumferentially through the exterior surface and wherein the textured surface finish of the exterior surface is between VDI 29 and VDI 36.
14. The speculum tip element according to claim 13 , in which the axisymmetric hollow body is made from one of an optically transparent or optically translucent plastic material.
15. The speculum tip element according to claim 6 , in which an amount of peripheral illumination output relative to a total illumination output of the speculum tip element is more than 10 percent.
16. The speculum tip element according to claim 6 , in which an amount of total illumination output of the speculum tip element is greater than 80 percent, as compared to that of the light source.