The "first cut" design of an optical system - anything from a telescope to a complicated VR helmet - is usually not done by a specialist but by a more general optical engineer. This book, drawn from the author's extensive seminar experience, details such basic design techniques in a clear, concise, "low-math" way that is sure to be readily accessible to anyone with a working knowledge of optics. It discusses the characteristic of a wide range of optical components, how to determine the type of components to be used, and how to arrange these components so that the system measures up to its performance objectives. Practical, step-by-step coverage includes succinct equations, simple diagrams, and clear explanations. For less experienced designers, the chapter on utilizing stock lenses (to test a concept or to prove out a possible finished device) should be especially useful.