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    This auction is for a 266nm mirror for YAG fourth harmonic. It is a flat BK7 optical glass substrate 3 inches in diameter. And 0.375 inches thick, coated ... more for 266nm at 45 degrees angle of incidence. Surface figure is lambda/10 and 10-5 laser quality. It has a damage threshold of 1 MW/cm2 CW, or 20J/cm2 for 8ns pulse.

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    What would be the best lens or lens combination to give me this projected spot of light? Generally speaking, the use of a Holographic Diffuser , Condenser Lens , and Plano-Convex (PCX) Lens would satisfy the application.

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    Optical Lens BK7 ZF2 Achromatic Doublet lens. Model No.: RQ-0051. Optical Usage BK7 ZF2 Achromatic lens An achromatic lens or achromatic objective lens is a lens that is designed to limit the effects of chromatic and spherical aberration Achromatic lenses are corrected to bring two wavelengths typically red and blue into focus in the same plane ...

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    Description: The reflecting surface of our Metal Mirrors is a thin coating of silver, gold or aluminum on glass. We provide flat, concave and convex mirrors. Diameter/Width: 10 to 105 mm; Mirror Coatings: Uncoated, Protected Aluminum, Protected Gold, Silver; Mirror Materials: BK7 Glass, Fused Silica; Surface Flatness: λ/5, λ/10

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    2019-4-2 · The materials used in this lens are N-BAF10 and SF10, which are highly absorptive below the ~380 nm range. For example, a 10 mm sample of N-BAF10 glass has an internal transmittance of only 17% at 350 nm, and a 10 mm sample of SF10 has a transmittance value of 5.8% at 365 nm. The loss is then mostly attributed to absorption.

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    a) Convex lenses Single concave lenses spread, optical imaging elements with negative focal length. Collimated beam of light going through the lens becomes divergent and thus the image obtained is virtual. It can be observed through the lens in the incident direction of the light, only. Biconcave lenses have two spherical, concave surfaces.

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    Page 58 THICK 2-7/16' DIAMETER LENS/MIRROR BLANK Optical glass but has a few bubbles so was probably meant to be used for con- denser lenses, but should also be excel- lent to grind and polish for a mirror. These have a convex side and a flat side. 2-7/16'...

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    What would be the best lens or lens combination to give me this projected spot of light? Generally speaking, the use of a Holographic Diffuser , Condenser Lens , and Plano-Convex (PCX) Lens would satisfy the application.

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    Optical Lens BK7 ZF2 Achromatic Doublet lens. Model No.: RQ-0051. Optical Usage BK7 ZF2 Achromatic lens An achromatic lens or achromatic objective lens is a lens that is designed to limit the effects of chromatic and spherical aberration Achromatic lenses are corrected to bring two wavelengths typically red and blue into focus in the same plane ...

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    Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 991202 (22 July 2016); doi: 10.1117/12.2232848

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    Polishing and testing of the 3.4 m diameter f/1.5 primary mirror of the INO telescope Author(s): ... Transmission and opto-mechanical performance of the liquid lens coupling in the Robert Stobie Spectrograph on SALT ... Large optical glass blanks for the ELT generation

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    2020-10-2 · Back to Sam's Laser FAQ Table of Contents.; Back to Items of Interest Sub-Table of Contents. Introduction to Items of Interest This chapter represents a potpourri of general laser information. Basically, when something interesting and relevant to lasers shows up on one of the USENET newsgroups or elsewhere, it gets stuck in here.

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    2004-10-31 · There are 'prism-lens' optical elements, for example a right angle reflecting prism with concave or convex faces, they have been used in telescopes. Fabrication is quite difficult, as the curved face has be be centered as precisely as does a standard lens in a telescope.

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    2020-10-15 · • Optical spacer tube model CT for connection of 200-250. housing to any Sciencetech monochromator, with filter ... Concave mirror focal lengths are 200 mm input and 250 mm. output. Input aperture is f/3.5. ... • One collimating lens 1' diameter (UV …

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