Products/Services for Cassegrain Lens System

  • Telescopes-Image
    Telescopes - (58 companies)
    Telescopes are lens assemblies designed to magnify and view distant objects. Telescopes Information. Telescopes are lens assemblies that are designed to magnify and view distant objects. Telescopes include small devices such as spotting scopes... Search by Specification | Learn More
  • Camera Lenses and Video Lenses-Image
    Camera Lenses and Video Lenses - (282 companies)
    ...lighting conditions. In auto DC drive lenses, the iris is automatically adjusted via a dc signal output by the camera. There is no circuitry in the lens, just the motor driven by the DC signal. For auto video drivesthe iris is automatically adjusted via... Search by Specification | Learn More
  • Lens Holders-Image
    Lens Holders - (30 companies)
    ...holders that can be used to hold lenses with a variety of shapes and characteristics. Common lens holders include fixed lens holders, fixed lens holders with retaining rings, two-axis lens holders, universal lens holders, and self-centering lens holders... Search by Specification | Learn More
  • Optical Lens Assemblies-Image
    Optical Lens Assemblies - (145 companies)
    Optical Lens Assemblies Information. Optical lens assemblies are composed of a number of lenses mounted for a particular imaging function. These can include telecentric lenses, collimators, beam expanders, zoom lenses, etc. Optical lens assemblies... Search by Specification | Learn More
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    Zoom Lenses - (20 companies)
    Zoom Lenses Information. Zoom lenses are mechanical assemblies of lens elements that provide the ability to vary focal length and angle of view. In optical systems, shorter focal lengths provide greater optical power. In telescopy and photography... Search by Specification | Learn More
  • Microscope Lenses and Objectives - (63 companies)
    ...instead of video cameras. Other optical components for microscope lenses and objectives include contrast plates, cover slips, diaphragms, illuminators, mechanical stages, and mirrors. The objective lens is the microscope lens closes to the object. Search by Specification | Learn More
  • Cylindrical Lenses - (136 companies)
    Cylindrical lens have at least one surface that is formed in the shape of a cylinder. Cylindrical lenses are used to correct astigmatism in the eye, and, in rangefinders, to produce astigmatism, stretching a point of light into a line. This area... Search by Specification | Learn More
  • Fresnel Lenses - (35 companies)
    Fresnel lenses resemble a planoconvex or planoconcave lens that is cut into narrow rings and flattened. If the steps are narrow, the surface of each step is generally made conical and not spherical. How to Select Fresnel Lenses. Image credit: Knight... Search by Specification | Learn More
  • Antennas - (1117 companies)
    ...the reflector. The reflector may consist of a solid dish, open grid, or a plane. Several variations exist such as corner, parabolic, dish, plane or patch, front fed parabolic, Cassegrain (rear fed parabolic), and spherical reflectors. Image credit... Search by Specification | Learn More
  • Gradient Index Lenses - (13 companies)
    Gradient index (GRIN) lenses focus light through a precisely controlled radial variation of the lens material's index of refraction from the optical axis to the edge of the lens. How to Select Gradient Index Lenses. Image credit: Thorlabs | Grintech... Search by Specification | Learn More
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...zoom lens system can eliminate the need. for an inventory of multiple imaging systems, thereby reducing the costs and logistics of carrying multiple systems in. inventory. Frequently, Cassegrain-based mirror systems are used in such applications. For example, Johnson et al.1. designed a 4-element...

...as seen by the existing cassegrain. 6502 MPU system of the Hamilton Spectrograph is being. instrument.”. replaced with Galil’s DMC-4080 Accelera Series controller. S. Sandra Faber, a UCO astronomer, UOC professor and. In this application, Galil’s dual-loop position mode is used. a founder of the Keck...

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