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The use of modern precision molded plastic or glass aspheric lens elements has made aspheric lenses common today. 1969 Yashica TL Electro X (Japan): first SLR with all solid-state electronic light metering system. Had a stop-down aperture, full area averaging, CdS light meter linked via a four transistor circuit board to an extinguish-both-red ...
Nikon also manufactures eyeglasses, sunglasses, and glasses frames, under the brands Nikon, Niji, Nobili-Ti, Presio, and Velociti VTI. [117] Other Nikon's products include ophthalmic equipment, loupes , monoculars , binocular telescopes , metal 3D printers , material processing equipment, regenerative medicine contract manufacturing , cell ...
To investigate the similarity between radio waves and light waves, these researchers concentrated on producing short wavelength high-frequency waves with which they could duplicate classic optics experiments with radio waves, using quasioptical components such as prisms and lenses made of paraffin wax, sulfur, and pitch and wire diffraction ...
The organization, founded in 1900 and representing more than 2,500 independent bookstores, saw its membership grow by 11% in 2023 as 291 bookstores opened: 230 brick-and-mortar stores, 34 pop-ups ...
September 2, 2024 at 9:03 AM. A bronze statue from the Titanic — not seen in decades and feared to be lost for good — is among the discoveries made by the company with salvage rights to the ...
A growing number of retirement savers are sitting on a cool million or more in their IRAs or 401 (k)s. IRA account holders at Fidelity with $1 million or more saved jumped to 398,594 at the end of ...