LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS


	Know all by these presents, that the undersigned hereby constitutes and
appoints each of Steve Dykman, and any successor Chief Financial Officer of
Gentex Corporation (the "Corporation"), and Robert Hughes, any successor Finance
& Tax Manager of the Corporation, and any of their respective designates,
signing singly, the undersigned's true and lawful attorney-in-fact to:

(1)	Execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of the Corporation, Forms 3, 4, and 5 in
accordance with Section 16(a) of the Securities Exchange Act of 1934 and the
rules thereunder;

(2)     Do and perform any and all acts for and on behalf of the undersigned
that may be necessary or desirable to complete and execute any such Form 3, 4,
or 5, complete and execute any amendment or amendments thereto, and timely file
such form with the United States Securities and Exchange Commission and any
stock exchange or similar authority; and

(3)	take any other action of any type whatsoever in connection with the
foregoing that, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorneyshall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in surch
attorney-in-fact's discretion.

	The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact's substitute or
substitute's, shall lawfully do or cause to be done by virtue of this Power of
Attorney and the rights and powers herein granted.

        The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Corporation assuming, any of the undersigned's responsibilities to
comply with Section 16 or any other provision of the Securities Exchange Act of
1934.

	This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the
Corporation, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 2nd day of August, 2007.


                        /s/ Arlyn Lanting
            Signature ___________________________