AU2021103820A4 - Wearable hand sanitizer dispenser device with pulse oximeter - Google Patents

Abstract

WEARABLE HAND SANITIZER DISPENSER DEVICE WITH PULSE OXIMETER ABSTRACT The present invention relates to Wearable hand sanitizer dispenser device with pulse oximeter. The objective of the present invention is to solve the problems in the prior art related to adequacies in technologies related to oxygen measurement and sanitizers. The rectangular shaped watch capsule contains a digital display on the front and sensors which placed down facing towards the wrist. The sensors detect the amount of light absorbed which is used to calculate the amount of hemoglobin in the blood. It becomes more easy to calculate your pulse rate as well as 02 level in order to get well prepared from the infection associated with covid 19 and its related complications. The sanitizer dispenser is placed just opposite to the watch which is a small refillable container embedded in the watch band itself with its nozzle facing towards the palm with proximity sensors so it can sense the approximation of hand and can dispense the sanitizer. 28 DRAWINGS Applicants: Dr Pritam Mohanty& others Sheet 1 of total 4 4 114 11ii "HH~lMMM FIGURE 1 29

Description

DRAWINGS

Applicants: Dr Pritam Mohanty& others Sheet 1 of total 4

4 114 11ii "HH~lMMM

FIGURE 1

WEARABLE HAND SANITIZER DISPENSER DEVICE WITH PULSE OXIMETER FIELD OF INVENTION

[001]. The present invention relates to the technical field of medical device

and sanitizing device.

[002]. The present invention relates to the technical field of combine device

for measure oxygen with use as a sanitizer.

[003]. The present invention relates to the technical field of wearable

disinfecting container with continuously measure oxygen level of the person

wearing the device.

[004]. More particularly, the present invention is related to Wearable hand

sanitizer dispenser device with pulse oximeter.

BACKGROUND & PRIOR ART

[005]. The subject matter discussed in the background section should not

be assumed to be prior art merely as a result of its mention in the background

section. Similarly, a problem mentioned in the background section or

associated with the subject matter of the background section should not be

assumed to have been previously recognized in the prior art. The subject

matter in the background section merely represents different approaches,

which in-and-of-themselves may also be inventions.

[006]. This phase is supposed to introduce the reader to diverse elements

of artwork that can be associated with diverse elements of the prevailing

invention, that are described. This dialogue is assumed to be useful in

supplying the reader with history statistics to facilitate a higher knowledge

of the diverse elements of the prevailing invention. Accordingly, it must be

understood that those statements are to be examine on this light, and now

no longer as admissions of previous artwork.

[007]. In this era of covid9, people often desire to monitor certain

physiological characteristics. For that, many devices have been developed

for monitoring physiological characteristics of the people. Such devices

provide with the information they need to such as spo2 reading. As a result,

such monitoring devices have become an necessary in this time of covid19.

[008]. Method for monitoring certain such physiological characteristics of

a patient is known as pulse oximetry, and the devices used for measuring

blood oxygen is known as pulse oxymeter. Pulse oximetry may be used to

measure various blood characteristics, such as the arterial blood oxygen

saturation of hemoglobin (SPO2), and/or the rate of blood pulsations

corresponding to each heartbeat of an individual.

[009]. "Pulse"in pulse oximetry refers to the time varying amount of

arterial blood at the measurement site during each cardiac cycle.

[0010]. Pulse oximeters usually use non-invasive optical sensors to detect

the response to light from the patient's tissues by displaying the amount of

light absorbed by the tissue in the illuminated area. One or more of the

above-mentioned physiological characteristics can be calculated based on

the amount of light absorbed. More specifically, the light transmitted

through the tissue is usually selected from light of one or more wavelengths,

and the amount of light that can be absorbed by the blood is equal to the

amount of hemoglobin components present in the blood. The amount of

light absorbed by light of different wavelengths can be used to estimate

parameters related to hemoglobin in arterial blood using various algorithms.

During the propagation of the arterial pressure wave, the pulsating changes

in the arterial blood volume in the illuminated area will change the intensity

of the response to light detected by the photodetector of the sensor.

[0011]. The quality of the pulse oximetry measurement depends partly on

the blood perfusion properties of the tissue illuminated with light and partly

on the magnitude of the pulsatile changes in blood volume within the

illuminated tissue. it is well supplied with blood, such as the finger, toe or

the earlobe of a person on which the sensor is to be placed.

[0012]. Some of prior work are listed herewith:

[0013]. IN - 07.08.2020, Int.Class G06K 19/077Appl.No

202011024053Applicant Workspace Metal Solutions Pvt. Ltd.Inventor

Puneet Talesara The present invention relates to a smart check-in

system(100) and method for disinfecting hands & belongings and predicting

viral infections. The present invention includes a self-check kiosk(102) and

a disinfectant UV-C chamber(126). The self-check kiosk(102) includes a

kiosk lower part(104), a display unit(16), a camera(18), a temperature

sensor(120). A sanitizer dispenser(106), an oximeter sensor(108) are

installed inside the kiosk lower part(104). The temperature sensor(120)

measures the body temperature of the user. The oximeter sensor(108) to

measure blood oxygen, and heart rate. In case of the abnormal value of the

body temperature, blood oxygen, and heart rate, and the user is instructed

for further investigation. Else the user is instructed to place items inside a

disinfectant UV-C chamber(126) for the disinfection process and instructed

to sanitize hands from a sanitizer dispenser(106). A plurality of UV-C light

lamps(130) that are installed inside the disinfectant UV-C chamber(126)

disinfects items.

[0014]. 20140319374PORTABLE ULTRAVIOLET PULSE OXIMETER

SANITIZER, US - 30.10.2014 , Int.Class A61L 2/10Appl.No

1387186OApplicant Chandler DavidInventor Chandler David A portable

ultraviolet pulse oximeter sanitizer is a handheld unit that irradiates a pulse

oximeter probe with ultraviolet light within a sealed sanitizing chamber. A

main compartment section has one half of the sanitizing chamber, and a door

section has the other half of the sanitizing chamber. A pulse oximeter probe

may be clamped onto an attachment post within the sanitizing chamber.

After the door is closed, a plurality of ultraviolet lamps within the sanitizing

chamber are activated, irradiating the pulse oximeter probe with ultraviolet

light. A battery provides electrical power to the ultraviolet lamps, and a

timer automatically deactivates the ultraviolet lamps after a specified time

period.

[0015]. 202011027891A SMART CONVEYOR SYSTEM FOR

DISINFECTING BELONGINGS & HANDS AND PREDICTING VIRAL

INFECTIONS, IN - 28.08.2020 ,Int.Class B65G 47/64Appl.No

202011027891Applicant Workspace Metal Solutions Pvt. LtdInventor

Puneet Talesara The present invention relates to a smart conveyor

system(100) for disinfecting belongings & hands and predicting viral

infections. The present invention includes a disinfectant conveyor

chamber(126), and a health inspection kiosk(102). The disinfectant

conveyor chamber(126) includes an entry side(170), an exit side(172), a top

side(174), a bottom side(176), a first sidewall(182), a second sidewall(184),

and a plurality of UV-C light lamps(130). A user's belongings to be

disinfected enters inside the disinfectant conveyor chamber(126) from the

entry side(170), and after being disinfected inside the disinfectant conveyor

chamber(126) exits from the exit side(172). The health inspection kiosks

(102) are attached to the first sidewall(182) and the second sidewall(184) of

the disinfectant conveyor chamber(126). The health inspection kiosk(102)

includes an oximeter sensor(108), and a temperature sensor(120) a. The

oximeter sensor(108) measures blood oxygen and heart rate. The

temperature sensor(120) measures the body temperature of the person

[0016]. 4.202021052210"COVID-19 PROTECTED ROOM

DISINFECTING CLASS ROOM USING Al AND DATA SCIENCE

SYSTEM", IN - 15.01.2021 , Int.Class G06F 19/00Appl.No

202021052210Applicant DR. G.M. ASUTKARInventor DR. RAHUL

PETHE ABSTRACTThe invention "Covid-19 Protected Room:

Disinfecting Class Room using Al and Data Science System" is related to

disinfecting class room using Artificial Intelligence and machine

learningsystem.My Invention "Covid-19 Protected Room: Disinfecting

Class Room using Al and Machine Learning System" is a system for

disinfecting a room by using disinfectant door along with attendance

marking system and temperature screening system of the user before

entering the room. The invention also includes the use of an oximeter for

measurement of heart rate and oxygen level. It includes a disinfectant door

which will sprinkle the disinfectant solution over the user who is entering

through this door by sensing the body through the infrared proximity sensor.

Before the entry of the user to the room, at the time of attendance marking,

the infrared proximity sensor will sense the body temperature and will

dispense the solution for sanitization of the hands of the user. The invention

also includes RFID sensors which will completely replace the fingerprint

scanning system for recording the attendance so that preventing the users from touching the device and infecting it. The infrared temperature sensor will monitor the body temperature of the user who is accessing this device and alert through the buzzer if the temperature is above the guidelines. After the temperature screening if the temperature is above the required parameters then the user will have to go for checking the oxygen level through the oximeter placed in the device and it will also count the heartbeats of the user. After the checkup of these parameters then only the user will be allowed to enter the room. The disinfectant door will be dispensing the solution for sanitization of the exposed areas of the body whereas the solution dispenser is specifically for disinfecting the hands.

[0017]. 211484603ANTI-INFECTION FINGER CLIP TYPE OXIMETER

CONVENIENT TO ADJUST, CN - 15.09.2020, Int.Class A61B

5/1455Appl.No 201921415056.8Applicant GAOYOU HAOSHIGUANG

MEDICAL EQUIPMENT CO., LTD.Inventor ZHU JIAN The utility

model relates to an anti-infection finger clip type oximeter convenient to

adjust. The device comprises a shell, a clamping mechanism and a

disinfection mechanism, the clamping mechanism comprises an air bag, an

exhaust pipe, a sealing plate, a moving rod, a fixing assembly and a plurality

of telescopic assemblies. The telescopic assembly comprises a fixed rod and

a spring; the disinfection mechanism comprises a sealing plug, an ultraviolet

lamp tube and two movable assemblies; the movable assembly comprises a

rotating unit, a sliding block, a sliding rail and a connecting rod. According

to the anti-infection finger clamp type oximeter convenient to adjust, air is

conveyed to the air bag through the clamping mechanism; squeezing finger

with air bag, the fastening degree of thefingers is convenient to adjust;

measurement is prevented from being influenced by too large or too small

extrusion acting force; and moreover, the ultraviolet lamp tube enters the

inner side of the air bag through the disinfection mechanism, the sealing

plug is used for blocking the concave hole, and the ultraviolet lamp tube

radiates ultraviolet rays for sterilization and disinfection, so that bacterial transmission infection caused by use of different people is avoided, the use safety and reliability of the equipment are guaranteed, and the practicability of the equipment is improved.

[0018]. 2595561CLEANING AND/OR DISINFECTING APPARATUS,

EP - 29.05.2013, Int.Class A61B 90/7OAppl.No ll738272Applicant

MANTRA MEDICAL LTDInventor HERCOCK PAUL MARTIN , An

apparatus for cleaning and/or disinfecting a medical device such as a

stethoscope or pulse oximeter comprising a housing and a replaceable

cartridge configured to fit within the housing. The cartridge contains

cleaning medium for cleaning said medical device. The apparatus defines

an aperture configured to expose a surface of the medium to allow said

medical device to be brought against said surface for cleaning. The medium

is configured to advance with respect to the aperture such that different

portions of the medium are exposed at the aperture.

[0019]. WO/2012/010902CLEANING AND/OR DISINFECTING

APPARATUS, WO - 26.01.2012 , Int.Class A61B 19/00Appl.No

PCT/GB2011/051387Applicant MANTRA MEDICAL LIMITEDInventor

HERCOCK, Paul Martin An apparatus for cleaning and/or disinfecting a

medical device such as a stethoscope or pulse oximeter comprising a

housing and a replaceable cartridge configured to fit within the housing. The

cartridge contains cleaning medium for cleaning said medical device. The

apparatus defines an aperture configured to expose a surface of the medium

to allow said medical device to be brought against said surface for cleaning.

The medium is configured to advance with respect to the aperture such that

different portions of the medium are exposed at the aperture.

[0020]. 8.11000712CENTRALIZED HAND SANITIZER STATION, US

11.05.2021 , Int.Class G08B 21/00Appl.No 16909178Applicant Robert C

V ChenInventor Robert C V Chen, A central hand sanitizing system

(CHSS) is disclosed. The system includes a plurality of sanitizer stations

(PSS) each in a plumbing network, a central sanitizer store (CSS) in

communication with the PSS in the plumbing network; and a hand sanitizer

solution (HSS) dispersed from the CSS to the PSS via the plumbing network

and having a composition targeted to determined pathogens. The HSS

comprises an ethanol, a glycerol, a hydrogen peroxide, a distilled water and

an antipathogen solution of predetermined concentrations. A pulse

oximeter, a fever sensor and an electronic processor communicate a status

of users of respective PSS and a status of respective PSS. A central hand

sanitizing method additionally includes dispersing a hand sanitizer solution

(HSS) from the CSS to the PSS via the plumbing network and dispersing

informational metrics regarding the PSS, CSS and HSS and users thereof to

remote receivers via the electronic network.

[0021]. 1250884DISPOSITIVO SANITARIO DE CONTROL DE

ENTRADA, ES - 07.08.2020, Int.Class G07C 9/00Appl.No

202030686Applicant CRAMBO, S.A.Inventor Garcia Manchado Julio

Cesar A sanitary entry control device consisting of a closed cabin (1) which,

in turn, is compartmentalized into an entry area (1.1) and an exit area (1.2)

and where the entry area (1.1) comprises a door (2) that opens exclusively

thanks to non-contact access means, and characterized in that it comprises,

means for disinfecting the cabin (1) and means for measuring biometric

and/or anthropometric characteristics (4, 5, 6), which in turn comprise a

digital mat (4) configured to measure the weight and height of the person

who stands on said digital mat (4) and where said mat is located on the floor

of the cabin (1) next to one of the walls where an infrared sensor (5)

configured for the measurement of the user's body temperature located on

the digital mat (4) and a pulse oximeter (6) configured for the measurement

of the user's heart rate and blood oxygen, such that e an exit door (8) of the

exit zone (1.2) will be enabled if and only if the measured biometric and/or

anthropometric characteristics of the user are within a predefined and

programmable threshold. (Machine-translation by Google Translate, not

legally binding)

[0022]. 212461157MULTIFUNCTIONAL MOBILE MEDICAL

AUXILIARY EQUIPMENT, CN - 02.02.2021 ,Int.Class G16H

40/60Appl.No 202021101390.9Applicant BEUJING JIAYOUYISHENG

HEALTH TECHNOLOGY CO., LTD.Inventor ZHANG LIANG The

utility model belongs to the technical field of medical auxiliary equipment,

and discloses multifunctional mobile medical auxiliary equipment which is

provided with a micro consulting room. The micro-consulting room is

provided with a consulting room and a 24-hour self-service medicine

cabinet. The consulting room comprises a touch display screen, illumination

equipment, an ultraviolet disinfection lamp, a foldable seat, a skin detector,

a sphygmomanometer, a body fat meter, a heart rate detector, a

thermometer, an oximeter, a height meter, a weighing scale and other

detection instruments.The 24-hour self-service medicine cabinet is

composed of a touch display screen, a medicine bin, a goods outlet, a

refrigerating system and a background control system. According to the

utility model, medical related services such as conventional medical

detection, remote video inquiry, skin detection, self-service medicine

purchasing, self-service registration, family doctor service and the likecan

be carried out, a patient can be in video communication with a doctor in a

micro-consultation room to carry out remote inquiry and conventional examination, and medicines can be directly purchased in a self-service medicine cabinet of the micro-consultation room according to the guidance of the doctor. The medical treatment time of the user is saved, and the convenience of purchasing the standing medicine is improved..

[0023]. Groupings of alternative elements or embodiments of the invention

disclosed herein are not to be construed as limitations. Each group member

can be referred to and claimed individually or in any combination with other

members of the group or other elements found herein. One or more members

of a group can be included in, or deleted from, a group for reasons of

convenience and/or patentability. When any such inclusion or deletion

occurs, the specification is herein deemed to contain the group as modified,

thus fulfilling the written description of all Markus groups used in the

appended claims. As used in the description herein and throughout the

claims that follow, the meaning of "a "an," and "the" includes plural

reference unless the context clearly dictates otherwise. Also, as used in the

description herein, the meaning of "in" includes "in" and "on" unless the

context clearly dictates otherwise.

[0024]. The recitation of ranges of values herein is merely intended to serve

as a shorthand method of referring individually to each separate value

falling within the range. Unless otherwise indicated herein, each individual

value is incorporated into the specification as if it were individually recited

herein. All methods described herein can be performed in any suitable order

unless otherwise indicated herein or otherwise clearly contradicted by

context.

[0025]. The use of any and all examples, or exemplary language (e.g. "Such

as") provided with respect to certain embodiments herein is intended merely

to better illuminate the invention and does not pose a limitation on the scope

of the invention otherwise claimed. No language in the specification should

be construed as indicating any non-claimed element essential to the practice

of the invention.

[0026]. The above information disclosed in this Background section is only

for the enhancement of understanding of the background of the invention

and therefore it may contain information that does not form the prior art that

is already known in this country to a person of ordinary skill in the art.

SUMMARY

[0027]. Before the present systems and methods, are described, it is to be

understood that this application is not limited to the particular systems, and

methodologies described, as there can be multiple possible embodiments

which are not expressly illustrated in the present disclosure. It is also to be

understood that the terminology used in the description is for the purpose of

describing the particular versions or embodiments only and is not intended

to limit the scope of the present application.

[0028]. As aspect of present invention relates to a portable device for

operation as a hand sanitizer dispenser with pulse oximeter, in which the

portable device comprising: A pulse oximetry device, consist of at least two

light sources having different wavelengths and at least two detector

responsive to said different wavelengths, characterised in that pulse

oximetry device further comprises of: A square formed design set over and

get the distal finish of the ulna bone and to focus the gadget at a focused

region over the distal finish of the ulna; wherein said no less than one light

sources as well as said no less than two finder is situated inside said

structure; and wherein said somewhere around two locator is adjusted to

recognize light for giving heartbeat oximetry estimations, said identified

light being trans-enlightenment light beginning from said no less than two

light sources and reflecting off a surface of the distal finish of the ulna at a

point bigger than 0° and more modest than 180° and going through the

focused region; and A portable hand sanitizer for distributing disinfectant

includes:A tank in the wristband that contains the disinfectant fluid, An

outlet nozzle, which selectively distributes a pre-determined quantity of

disinfectant fluid, and A dispenser to selectively distribute on request the

sanitizing liquid of the tank in a place outside the bracelet.

OBJECTIVE OF THE INVENTION

[0029]. The principle objective of the present invention is to provide an

Wearable hand sanitizer dispenser device with pulse oximeter.

BRIEF DESCRIPTION OF DRAWINGS

[0030]. To clarify various aspects of some example embodiments of the

present invention, a more particular description of the invention will be

rendered by reference to specific embodiments thereof which are illustrated

in the appended drawings. It is appreciated that these drawings depict only

illustrated embodiments of the invention and are therefore not to be

considered limiting of its scope. The invention will be described and

explained with additional specificity and detail through the use of the

accompanying drawings.

[0031]. In order that the advantages of the present invention will be easily

understood, a detailed description of the invention is discussed below in conjunction with the appended drawings, which, however, should not be considered to limit the scope of the invention to the accompanying drawings, in which:

[0032]. Figure 1. Front side of Pulse Oximeter which includes plastic body

of pulse oximeter which is 2x2x0.3inch in dimesnion (label 1), digital screen

of 3x3cm (label 2), internal case of 1.8x1.8inch for system (label 3),

wearable strap of 2inch in diameter (label 4).

[0033]. Figure 2. Back side of Pulse Oximeter which includes sliding plate

(label 5), light emitter (label 6) light detector (label 7 & 8)

[0034]. Figure 3. Shows principle of reflectance pulse Oximeter which

includes light emitter (label 9), light detector (label 10), skin sample (label

13), venous blood (label 11), arterial blood (label 12).

[0035]. Figure4. Mechanism of pulse oximeter

DETAIL DESCRIPTION

[0036]. The present invention is related to Wearable hand sanitizer dispenser

device with pulse oximeter.

[0037]. Figure No 1 is illustrating a flow diagram of the present invention

where the details operation of the present invention.

[0038]. Although the present disclosure has been described with the purpose

of Wearable hand sanitizer dispenser device with pulse oximeter, it should

be appreciated that the same has been done merely to illustrate the invention

in an exemplary manner and to highlight any other purpose or function for

which explained structures or configurations could be used and is covered

within the scope of the present disclosure.

[0039]. The portable device for operation as a hand sanitizer dispenser with

pulse oximeter, in which the portable device comprising A pulse oximetry

device and A portable hand sanitizer combine.

[0040]. The pulse oximetry device consists of at least two light sources

having different wavelengths and at least two detectors responsive to said

different wavelengths.

[0041]. The pulse oximetry device further comprises of a square formed

design set over and get the distal finish of the ulna bone and to focus the

gadget at a focused region over the distal finish of the ulna; wherein said no

less than one light sources as well as said no less than two finder is situated

inside said structure; and wherein said somewhere around two locator is

adjusted to recognize light for giving heartbeat oximetry estimations, said identified light being trans-enlightenment light beginning from said no less than two light sources and reflecting off a surface of the distal finish of the ulna at a point bigger than 0° and more modest than 180° and going through the focused region.

[0042]. The portable hand sanitizer for distributing disinfectant includes A

tank in the wristband that contains the disinfectant fluid.

[0043]. An outlet nozzle is selectively distributing a pre-determined

quantity of disinfectant fluid.

[0044]. A dispenser is used to selectively distribute on request the

sanitizing liquid of the tank in a place outside the bracelet.

[0045]. At least one detector is adapted to measure said trans-illumination at

an angle between about 20° and 160° relative to an incident path of the

emitted light.

[0046]. , At least one detector is adapted to measure said trans-illumination

at an angle between about 70° and 110° relative to an incident path of the

emitted light.

[0047]. At least two light sources are components selected from the group

consisting of: LEDs having different wavelength ranges, laser diodes having

different wavelengths, and a combination of LEDs and laser diodes having

wavelengths outside the wavelength range of the LEDs

[0048]. The device comprises a processor configured to calculate oximetry

data from said trans-illumination.

[0049]. The figures and the foregoing description give examples of

embodiments. Those skilled in the art will appreciate that one or more of

the described elements may well be combined into a single functional

element. Alternatively, certain elements may be split into multiple

functional elements. Elements from one embodiment may be added to

another embodiment. For example, order of processes described herein may

be changed and are not limited to the manner described herein. Moreover,

the actions of any flow diagram need not be implemented in the order

shown; nor do all of the acts need to be necessarily performed. Also, those

acts that are not dependent on other acts may be performed in parallel with

the other acts. The scope of embodiments is by no means limited by these

specific examples.

[0050]. Although implementations of the invention have been described in

a language specific to structural features and/or methods, it is to be

understood that the appended claims are not necessarily limited to the

specific features or methods described. Rather, the specific features and

methods are disclosed as examples of implementations of the invention.

Claims (4)

CLAIMS We claim:

1. A hand wearable device for operation as a hand sanitizer

dispenser with pulse oximeter, in which the hand wearable device

comprising:

A pulse oximetry device, consist of at least two light sources

having different wavelengths and at least two detectors

responsive to said different wavelengths, characterised in that

pulse oximetry device further comprises of:

A square formed design set over and get the distal finish of the

ulna bone and to focus the gadget at a focused region over the

distal finish of the ulna; wherein said no less than one light

sources as well as said no less than two finder is situated inside said structure; and wherein said somewhere around two locator is adjusted to recognize light for giving heartbeat oximetry estimations, said identified light being trans-enlightenment light beginning from said no less than two light sources and reflecting off a surface of the distal finish of the ulna at a point bigger than

0° and more modest than 1800 and going through the focused

region; and

A portable hand sanitizer for distributing disinfectant includes:

A tank in the wristband that contains the disinfectant fluid, an

outlet nozzle, which selectively distributes a pre-determined

quantity of disinfectant fluid, and A dispenser to selectively

distribute on request the sanitizing liquid of the tank in a place

outside the bracelet.

2. The hand wearable device for operation as a hand sanitizer

dispenser with pulse oximeter as claimed in claim 1, at least one detector is adapted to measure said trans-illumination at an angle between about 200and 1600relative to an incident path of the emitted light.

3. The hand wearable device for operation as a hand sanitizer

dispenser with pulse oximeter as claimed in claim 1, at least one

detector is adapted to measure said trans-illumination at an angle

between about 700and 1100relative to an incident path of the

emitted light.

4. The hand wearable device for operation as a hand sanitizer

dispenser with pulse oximeter as claimed in claim 1, at least two

light sources are components selected from the group consisting

of: LEDs having different wavelength ranges, laser diodes

having different wavelengths, and a combination of LEDs and

laser diodes having wavelengths outside the wavelength range of

the LEDs