Document:

Exhibit 10.5 (iii)

                             AMENDED BUSINESS LEASE

     This amended lease, effective October 15, 2000 is between 2780 SOUTH
RARITAN, LLC, as Landlord, and ORALABS, INC., as Tenant.

     In consideration of the payment of the rent and the performance of the
covenants and agreements by the Tenant set forth herein, the Landlord does
hereby lease to the Tenant the following described premises situate in Arapahoe
County, in the State of Colorado; the address of which is 2780 S. Raritan
Street, Englewood, Colorado.

     Said premises, with all the appurtenances, are leased to the Tenant from
the date of July 1, 1998, until the date of June 30, 2003 at and for a rental
payable in monthly installments of $8,250.00 (based upon $5.50 per square foot
per annum for the original premises consisting of 18,000 square feet) plus,
effective October 15, 2000, $2,400.00 (based upon $6.00 per square foot per
annum for the portion of the premises consisting of 4,800 square feet), for a
total of $10,650.00 per month, in advance, on the 1st day of each calendar month
during the term of this lease, payable at 2901 S. Tejon St., Englewood, Colorado
80110, without notice.

THE TENANT, IN CONSIDERATION OF THE LEASING OF THE PREMISES AGREES AS FOLLOWS:

     1. To pay the rent for the premises above-described.
     2. To keep the improvements upon the premises, including sewer connections,
plumbing, wiring and glass in good repair, all at Tenant's expense, and at the
expiration of this lease to surrender the premises in as good a condition as
when the Tenant entered the premises, loss by fire, inevitable accident, and
ordinary wear excepted. To keep all sidewalks on and around the premises free
and clear of ice and snow, and to keep the entire exterior premises free from
all litter, dirt, debris and obstructions; to keep the premises in a clean and
sanitary condition as required by the ordinances of the city and county in which
the property is situate.
     3. To sublet no part of the premises, and not to assign the lease or any
interest therein without the written consent of the Landlord, which consent
shall not be unreasonably withheld.
     4. To use the premises only as manufacturing and warehouse and to use the
premises for no purposes prohibited by the laws of the United States or the
State of Colorado, or of the ordinances of the city or town in which said
premises are located, and for no improper or questionable purposes whatsoever,
and to neither permit nor suffer any disorderly conduct, noise or nuisance
having a tendency to annoy or disturb any persons occupying adjacent premises.
     5. To neither hold nor attempt to hold the Landlord liable for any injury
or damage, either proximate or remote, occurring through or caused by the
repairs, alterations, injury or accident on or to the premises, or adjacent
premises, or other parts of the above premises not herein demised, or by reason
of the negligence or default of the owners or occupants thereof or any other
person, nor to hold the Landlord liable for any injury or damage occasioned by
defective electric wiring, or the breakage or stoppage of plumbing or sewerage
upon said premises or upon adjacent premises, whether breakage or stoppage
results from freezing or otherwise; to neither permit nor suffer said premises,
or the walls or floors thereof, to be endangered by overloading, nor said
premises to be used for any purpose which would render the insurance thereon
void or the insurance risk more hazardous, nor make any alterations in or
changes in, upon, or about said premises without first obtaining the written
consent of the Landlord therefor, but to permit the Landlord to place a "For
Rent" sign upon the leased premises at any time after sixty (60) days before the
end of this lease.

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     6. To allow the Landlord to enter upon the premises at any reasonable hour.

IT IS EXPRESSLY UNDERSTOOD AND AGREED BETWEEN LANDLORD AND TENANT AS FOLLOWS:

     7. All charges for water and water rents are to be paid by Tenant. All
charges for heating and lighting are to be paid by Tenant. Janitorial services
are to be paid by Tenant. Tenant pays all expenses. Tenant pays all taxes and
all costs relating to ownership of the building, including without limitation
all architectural and design fees respecting the additional 4,800 square feet.
     8. No assent, express or implied, to any breach of any one or more of the
agreements hereof shall be deemed or taken to be a waiver of any succeeding or
other breach.
     9. If, after the expiration of this lease, the Tenant shall remain in
possession of the premises and continue to pay rent without a written agreement
as to such possession, then such tenancy shall be regarded as a month-to-month
tenancy, at a monthly rental, payable in advance, equivalent to the last month's
rent paid under this lease, and subject to all the terms and conditions of this
lease.
     10. If the premises are left vacant and any part of the rent reserved
hereunder is not paid, then the Landlord may, without being obligated to do so,
and without terminating this lease, retake possession of the said premises and
rent the same for such rent, and upon such conditions as the Landlord may think
best, making such changes and repairs as may be required, giving credit for the
amount of rent so received less all expenses of such changes and repairs, and
the Tenant shall be liable for the balance of the rent herein reserved until the
expiration of the term of this lease.
     11. The Landlord acknowledges receipt of a deposit in the amount of $(none)
to be held by the Landlord for the faithful performance of all of the terms,
conditions and covenants of this lease. The Landlord may apply the deposit to
cure any default under the terms of this lease and shall account to the Tenant
for the balance. The Tenant may not apply the deposit hereunder to the payment
of the rent reserved hereunder or the performance of other obligations.
     12. At the Landlord's option, it shall be deemed a breach of this lease if
the Tenant defaults (a) in the payment of the rent or any other monetary
obligation herein; or (b) in the performance of any other term or condition of
this lease. The Landlord may elect to cure such default and any expenses of
curing may be added to the rent and shall become immediately due and payable.
     In the event that the Landlord elects to declare a breach of this lease,
the Landlord shall have the right to give the Tenant three (3) days written
notice requiring payment of the rent or compliance with other terms or
provisions of the lease, or delivery of the possession of the premises. In the
event any default remains uncorrected after three (3) days written notice, the
Landlord, at Landlord's option, may declare the term ended, repossess the
premises, expel the Tenant and those claiming through or under the Tenant and
remove the effects of the Tenant, all without being deemed guilty in trespass or
of a forcible entry and detainer and without prejudice to any other remedies to
which the Landlord may be entitled. If at any time this lease is terminated
under this paragraph, the Tenant agrees to peacefully surrender the premises to
the Landlord immediately upon termination, and if the Tenant remains in
possession of the premises, the Tenant shall be deemed guilty of unlawful
detention of the premises. The Landlord shall be entitled to recover from the
Tenant all damages by reason of the Tenant's default, including but not limited
to the cost to recover and repossess the premises, the expenses of reletting,
necessary renovation and alteration expenses, commissions and the rent for the
balance of the term of this lease.

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     13. In the event the premises shall become untenantable on account of
damage by fire, flood or act of God, this lease may be thereupon terminated and
the rent apportioned to the date of the occurrence of such damage.
     14. In the event of any dispute arising under the terms of this lease, or
in the event of non-payment of any sums arising under this lease and in the
event the matter is turned over to an attorney, the party prevailing in such
dispute shall be entitled, in addition to other damages or costs, to receive
reasonable attorneys' fees from the other party.
     15. In the event any payment required hereunder is not made within (10)
days after the payment is due, a late charge in the amount of five percent (5%)
of the payment will be paid by the Tenant.
     16. In the event of a condemnation or other taking by any governmental
agency, all proceeds shall be paid to the Landlord hereunder, the Tenant waiving
all right to any such payments.
     17. This lease is made with the express understanding and agreement that in
the event the Tenant becomes insolvent, the Landlord may declare this lease
ended, and all rights of the Tenant hereunder shall terminate and cease.
     18. The Landlord and the Tenant further agree.

     SHOULD ANY PROVISION of this lease violate any federal, state or local law
or ordinance, that provision shall be deemed amended to so comply with such law
or ordinance, and shall be construed in a manner so as to comply.

     This lease shall be binding on the parties, their personal representatives,
successors and assigns.

     When used herein, the singular shall include the plural, and the use of any
gender shall apply to both genders.

                                    2780 SOUTH RARITAN, LLC

                                By: /s/  Gary Schlatter
                                    --------------------------------------------
                                    Gary Schlatter, Manager

                                    ORALABS, INC.

                                By: /s/  Emile R. Jordan
                                    --------------------------------------------
                                    Emile R. Jordan, CFO

                                       3Exhibit 10.237

                                 EXHIBIT 10.237

                                 PROMISSORY NOTE
                                                            Glendale, California

$200,000                                                            June 7, 2000

     FOR VALUE RECEIVED, the undersigned, Pollution Research and Control Corp.,
a California corporation (hereinafter referred to as the "Maker"), with its
address at 506 Paula Avenue, Glendale, California 91201, agrees and promises to
pay to the order of Delta Capital Partners, a corporation (hereinafter referred
to as the "Holder"), at 9300 Wilshire Boulevard, Suite 308, Beverly Hills, Ca
90212, or such other place as the Holder may designate in writing, in coin or
currency of the United States of America, which at the time of payment is legal
tender for the payment of public and private debts, the principal sum of two
hundred thousand dollars ($200,000), together with interest thereon at the rate
of eighteen per cent ("18% ") per annum, from the date hereof until maturity, as
hereinafter provided. The principal balance of this Promissory Note (hereinafter
referred to as the "Note"), together with all interest then accrued and unpaid,
shall be due and payable on the first to occur of the following dates: (i) June
28, 2000, or (ii) the date upon whichMaker receives financing in the amount of
at least $300,000.

     As an incentive to the Holder to make the loan to the Maker described in
this Note, the Maker shall grant to the Holder, contemporaneously with the
execution of this Note, an option of even date herewith, a copy of which is
attached hereto and incorporated herein by this reference, exercisable to
purchase 15,000 restricted shares of Common Stock of the Company at an exercise
price of $2.25 per share on or prior to 5:00 p.m. Los Angeles time, on June 6,
2003.

     The Maker may prepay any part or all of this Note at any time without
penalty. Each payment or pre-payment made by the Maker hereunder shall be
applied first to the payment or pre-payment of accrued and unpaid interest, if
any, due on the unpaid principal balance of this Note and the remainder of each
payment or pre-payment made by the Maker shall be applied to the reduction of
the unpaid principal balance hereof.

     If default is made in the payment of this Note, as and when the same is or
becomes due, the Holder may, after notice and failure to cure as hereinafter
provided, without additional notice or demand, declare the entire unpaid
principal balance hereof and accrued and unpaid interest, if any, at once due
and payable.

     Except as otherwise specifically set out herein, the Maker waives demand
and presentment for payment, notice of non-payment, protest, notice of protest,
notice of acceleration of the indebtedness due hereunder, bringing of suit and
diligence in taking any action to collect amounts called for hereunder, and
agrees that the time of payments hereof may be extended without notice at any
time and from time-to-time, and for periods of time for a term or terms in
excess of the original term without notice or consideration to, or consent from
the Maker, without same constituting a waiver of the Holder's rights under this
Note.

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<PAGE>

     If payment hereunder is not made when due or in the event of default in any
other covenant, condition or promise under this Note, the Holder may at his
electionate this Note. Form and after the date of such default, the principal
sum and all interest then accrued shall bear interest at the rate of twenty
percent (20%) per annum until paid.

     If the entire outstanding principal balance becomes due, the Maker agrees
to pay the Holder's reasonable costs (including reasonable attorney's fees and
court costs) in collecting on this Note, including the reasonable costs of
obtaining and enforcing a judgment for any balance due on this Note.

     This Note has been executed in the City identified in the heading and
delivered to the Holder at the address stated herein. It is to be performed, in
whole or in part, in the State of California, and the laws of such state shall
govern the validity, construction, enforcement and interpretation of this Note.
Jurisdiction and venue for any action hereunder shall be in the County of the
City identified in the heading.

     The Maker represents that it is duly authorized and empowered to enter
into, deliver, perform and be fully bound by all of the terms, provisions and
conditions of this Note. The Maker also represents that the making and delivery
of this Note, and the performance of any agreement or instrument made in
connection herewith, does not conflict with or violate any other agreement to
which the Maker is a party.

     No provision of this Note shall require the payment or permit the
collection of interest in excess of the maximum permitted by law, and in the
event of any such excess, neither the Maker nor its successors or assigns shall
be obligated to pay any such excess to the extent that it is more than the
amount permitted by law. If an excess amount is received, charged, collected or
applied as interest, it shall automatically be made so as to reduce the rate to
that permitted by law and any excess interest then received, charged or
collected shall be applied to reduce the amount of any collateral to which the
Holder is entitled.

     In the event that any word, phrase, clause, sentence or other provision
hereof shall violate any applicable statute, ordinance or rule of law in any
jurisdiction in which it is used, such provision shall be ineffective to the
extent of such violation without invalidating any other provision hereof.

     IN WITNESS HEREOF, this Note is executed on the date and year above
written.

                                            POLLUTION RESEARCH AND CONTROL CORP.

                                            By:  /s/  Albert E. Gosselin
                                               --------------------------------
                                                      Albert E. Gosselin, Jr.,
                                                      President

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