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WAR DEPARTMENT TECHNICAL MANUAL

TAI 9-2601

This TM supersedes WD Pamphlet No. 1065, Elementary Optics and Applications to Fire
Control Instruments, dated January 1924, and Ordnance School Text (TM 9-2601), Elementary
Optics, dated December 1942.

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RESTRICTED. DISSEMINATION OF RESTRICTED MATTER.
No person is entitled solely by virtue of his grade or position to knowledge
or possession of classified matter. Such matter is entrusted only to those
individuals whose official duties require such knowledge or possession.

(See also paragraph 23b, AR 380-5, 15 March 1944.)

WAR DEPARTMENT
Washington 25, D. C., 19 April 1945

TM 9-2601 Instruction Guide: Elementary Optics and Applications to Fire Control Instruments, is published for the information and guidance of all concerned.

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DISTRIBUTION: AAF (10); AGF (5); ASF (2); S Div ASF (1);

Dept (10); AAF Comd (2); Arm & Sv Bd (1); Tech
Sv (2); SVC (10); PC&S (1); PE, 9 (5); Dist O, 9
(5); Dist Br 0, 9 (3); Reg 0,9 (3); Establishment,
9 (5) except Am Establishments: Decentralized
Sub-O, 9 (3); Gen & Sp Sv Sch (10); USMA (20);
A (10); CHQ (10); D (2); AF (2).

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RESTRICTED

This TM supersedes WD Pamphlet No. 1065, Elementary Optics and Applications to Fire Control Instruments, dated January 1924, and Ordnance School Text (TM 9-2601), Elementary Optics, dated December 1942.

CHAPTER 1 - INTRODUCTION

1. SCOPE.

a.

This manual is published primarily for the information and guidance of ordnance maintenance personnel and others who must be familiar with the functioning of fire control instruments.

b. This manual covers the basic principles of optical theory necessary to understand the operation of fire control instruments. It contains descriptive matter and illustrations sufficient to provide a general knowledge of the principles upon which the design and construction of military optical instruments are based.

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