VPH transmission gratings offer many benefits over traditional ruled reflection gratings, ranging from superior and consistent optical performance to design flexibility and easy handling. VPH gratings ...

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Each Wasatch Photonics volume phase holographic (VPH) grating produced is an original, with consistent performance from one grating to the next. Our proprietary processes minimize stress, resulting in ...

Review the current valuation for Van Phat Hung Corp (VPH:XSTC) stock based on a yearly calendar providing PE ratios, cash flow, EBITDA and other company valuation information.