Penn Optical Coatings is a partner of Ross Optical. Ross does a number of coatings in-house, but when our customers have more complex or custom project, we know we can rely on Penn’s expertise and attention to quality.Read More >
Unlike a conventional spherical lens, a "cylinder lens" has curvature along only one axis, as shown in the first figure. Cylinder lenses are useful in applications where light needs to be manipulated in only one direction. The example shown is a plano-convex positive lens, which brings parallel rays to a line focus.Read More >
Meeting Needs, By the Numbers
We just completed our 2017 customer survey, and Ross Optical once again received high marks for customer service, technical expertise, quality and delivery. On overall performance, 92% of customers rated Ross above average or excellent.Read More >
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Optical assembly is an important step in the production of an optical system—as well as a major cost driver. As we’ve previously discussed, designing optics with assembly in mind can ease the transition from prototype to final product and save money in the long run. But beyond design, the “who” and “where” of assembly can also affect price.
Generally speaking, a "large" optic is anything with dimensions exceeding 10 cm. Designing a large optical system is not intrinsically harder than designing a smaller system, but the stakes are higher. The classic example of a large optics project gone wrong is the Hubble Space Telescope, in which an error in metrology resulted in a mirror that was made "exactly wrong" to very high precision.
Keep in mind that, when designing a system that includes large optical elements, the effects of the usual cost factors increase and some new factors appear. The following design points will help.Read More >
I attend the SPIE Optics + Photonics conference every year, mostly just to walk the show. Compared to other shows, O+P is a pretty laid back event, perhaps because it is at the end of summer or perhaps because it is in Southern California. Because it is a slower conference, you really need to plan ahead if you want to get the most out of it.Read More >
Stock image, Claudio Ventrella
Have you ever tried to take a picture of a bright full moon or a star-filled sky, only to be disappointed when virtually nothing shows up on your phone screen? The distance and brightness of these objects make it nearly impossible to get a sharp image—and that’s just in our own galaxy.Read More >