Formulas for lens focal length, magnification, relative aperture (f/#), object-to-image distance, object-to-lens distance, lens-to-image distance and numerical aperture.Read full articleRelated content from Photonics MediaArticlesLaCroix Precision Optics Adds Assembly, Design DepartmentsLaCroix Precision Optics has added optical assembly and design departments in a move that the company said solidifies its status as a vertically integrated optics firm. According to LaCroix president...Photonics.com 1/24/2024How to Preserve Your Laser Optics Against UV DegradationUltraviolet laser optics tend to have limited lifetimes, due primarily to two processes: laser-induced contamination (LIC) and UV fatigue. LIC is caused by the deposition of unwanted material on the...Photonics Spectra September 2023 IssueFused Silica: A Transparent Look at a Complex MaterialMany users of fused silica may ask why there are so many different grades of the glass. 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Since 1947, three generations of family leadership have guided LaCroix Precision Optics to become the premier precision optics...Photonics Buyers' GuideShanghai Optics Inc.ISO 9001 & ISO 13485 certified and D&B DUNS # 113515303 Shanghai Optics is an unparalleled custom system solution provider offering advance precision custom optical design, engineering,...Photonics Buyers' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideAvantier Inc.Avantier Inc. is an unparalleled leader in providing innovative imaging systems solutions and optical systems solutions. We offer advance precision custom optical design, optical engineering...Photonics Buyers' Guide