The phrase "a projection lens" is correct and usable in written English.
It can be used when referring to a specific type of lens designed to project images, commonly used in projectors or cameras.
Example: "The projector requires a high-quality projection lens to ensure clear and sharp images on the screen."
Alternatives: "an imaging lens" or "a display lens".
Here, a projection lens with a clear aperture of 62 mm and a focal length of 571 mm was used.
Examples of real images are those made by a camera lens on film or a projection lens on a motion-picture screen.
Recently, a projection lens was developed that can produce a variable step height using an adjustable numerical aperture, which has led to the fabrication of micro-lens arrays (MLAs) with step heights as high as 100 μm.
Cookie, Ned's other sidekick, acts as if he just stepped out of a cartoon -- changing electives without teacher approval or switching brussels sprouts to candy corn on the lunch menu by means of a hidden pocket computer with a projection lens mounted on his glasses.
Five LEDs are used with a projection lens and cutoff shield to shape the light distribution of the LED low beam.
For their actual projection process, a combination of fast-pulsed lasers, illumination, and a projection lens with a metasurface provide Bleen's answer to Hatsune Miku's plastic projection surface and Jason Akira Somma's holographic mist.
As for the new type of 3D fringe-based profilometry we proposed, a compact projection lens is designed to meet the requirements of interferometric fringes magnification.
The system used a × 20 objective (numerical aperture 0.75) with a × 0.63 projection lens, resulting in spatial resolution of 0.54 μm and effective pixel size of 0.37 × 0.37 μm.
Incorporating a 180-degree projection lens and spherical projection software, VisionStation starts at $20,000, still a bit of a reach for architectural and real estate firms that could benefit from virtual walkthroughs for clients of would-be or actual buildings.
It includes a pair of permanent horseshoe magnets, two terminals for AC current input, light source (not shown), projection lens, condenser, a string holder (contains a piece of wire) and a potentiometer.
The Super Panatar was a rectangular box that attached to the existing projection lens with a special bracket.
