Examination light apparatus with touch-less control

Patent metadata

Field	Value
Publication number	US-9967936-B2
Application number	US-201414303787-A
Country	US
Kind code	B2
Filing date	Jun 13, 2014
Priority date	Aug 8, 2008
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

An examination light apparatus including a touch-less control component that enables a user to control the apparatus without requiring physical contact between the user and the apparatus. The apparatus employs an LED control component that is configured to adapt its electrical interface to a variable quantity of light emitting diodes in order to interface with each of a plurality of lamp heads that each can include a unique arrangement and quantity of light emitting diodes. The light emitting diodes (LEDs) provide a high level of light quality, quantity and intensity (luminosity) while requiring low power consumption and low space and weight requirements and are employed without requiring a cooling fan. Uniform mechanical and electrical interfaces between the control component and other portions of the examination lamp provide for efficient and simple manufacturing of various examination light configurations.

First claim

What is claimed is:

1. A device that is controlled without requiring physical contact from a user, including:
an operational device;
a control component separated from the operational device by a support member, wherein the control component is disposed on a first portion of the support member that supports the control component and the operational device is disposed on a second portion of the support member separated from the first portion thereof, the control component including an outer surface;
said control component further including at least one electrical capacitance sensor that is located behind said outer surface and disposed on the first portion of the support member and wherein control of said operational device is exercised by positioning a human appendage within proximity of said electrical capacitance sensor without requiring said appendage to make physical contact with said outer surface of said control component; and wherein said outer surface of said control component includes no moving parts, excludes surface pockets and is configured to form a barrier between inner portions of said control component and contamination that could be deposited upon said control component via physical contact between a user and said control component, and wherein the control component discriminates between background and foreground capacitance using procedures that compute at least one moving average of an amount of capacitance that is detected over time by an electrical capacitance sensor.

2. The device of claim 1 wherein said proximity is a distance of within 2 inches of said electrical capacitance sensor.

3. The device of claim 1 including a first electrical capacitance sensor that is configured to be toggled to transition operation of said device to between an ON and an OFF state.

4. The device of claim 1 , wherein the device is a lamp head.

5. The device of claim 4 , wherein the lamp head is attached to a distal end of a support member and the control component is attached or integral to an intermediate portion of the support member.

6. A device that is controlled without requiring physical contact from a user, including:
an operational device;
a control component separately disposed in relation to the operational device, wherein the control component is disposed on a support member that supports the control component, the control component including an outer surface;
said control component further including at least one electrical capacitance sensor that is located behind said outer surface and wherein control of said operational device is exercised by positioning a human appendage within proximity of the electrical capacitance sensor without requiring the appendage to make physical contact with the outer surface of the control component; and
wherein the control component discriminates between background and foreground capacitance using procedures that compute at least one moving average of an amount of capacitance that is detected over time by an electrical capacitance sensor.

7. The device of claim 6 , wherein the outer surface of the control component includes no moving parts, excludes surface pockets and is configured to form a barrier between inner portions of said control component and contamination that could be deposited upon said control component via physical contact between a user and said control component.

8. The device of claim 6 , wherein the device is a lamp head.

9. The device of claim 8 , wherein the lamp head is attached to a distal end of a support member and the control component is attached or integral to an intermediate portion of the support member.

Assignees

• Welch Allyn Inc

Inventors

• Wood Robert J
• Salvati Jon R
• Curry Michael
• Dickens Christopher
• Goldfain Ervin

Classifications

• H05B45/14

  using electrical feedback from LEDs or from LED modules · CPC title

• F21S6/00 Primary

  Lighting devices intended to be free-standing (F21S9/00, F21S10/00, {F21S13/12} take precedence {lighting devices specially adapted to be transported from place to place, e.g. lighting devices carried on wheeled supports F21L; details of supports for lighting devices F21V21/00}) · CPC title

• A61B90/30

  Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure · CPC title

• H03K2217/94031

  Calibration involving digital processing · CPC title

• H03K2217/960705

  Safety of capacitive touch and proximity switches, e.g. increasing reliability, fail-safe · CPC title