pinhole


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Related to pinhole: pinhole test, Pinhole Photography

pinhole

Archery the exact centre of an archery target, in the middle of the gold zone

pinhole

[′pin‚hōl]
(metallurgy)
A material fault resulting from small blisters that have burst in a casting or that have formed during electroplating.

pinhole

1. In wood, a round hole usually less than ¼ in. (0.6 cm) in diameter, caused by the boring of a beetle or worm in standing timber.
2. In a plaster coat, a surface defect resulting from trapped air bubbles.
3. In a paint film, one of many small holes caused by: (a) impurities (in the paint, on the paintbrushes or rollers, or on the surface being painted); (b) solvent bubbling; or (c) moisture.
4. In the surface of a ceramic body, glaze, or porcelain enamel, an imperfection characterized by a depression resembling a pinprick.
5. A hole in a structural member through which a pin, 2 passes and connects with another member.
References in periodicals archive ?
You can put a screen anywhere behind the eyepieces and project a crisp, clear image onto that screen, and the image will be much larger and brighter than with a pinhole or small mirror.
We argue that this is also true of slow photography, and in particular, pinhole photography.
As pinholes in aluminum are very rare, it is correspondingly difficult to find test samples that can be used to measure the influence of aluminum pinholes.
A: When I'm out with the pinhole camera in New York City, people stop me on the sidewalk and they'll ask, "What is that?
Pinhole Press' and Pinhole Pro's portfolios include press products, such as photo books, cards, calendars and invitations.
Measure the film thickness in the pinhole area via the cross sections or by other means.
I was sitting there one day with my pinhole camera and I thought, 'I wonder if this fits in my mouth," the Daily Mail quoted Justin, who is one of the UK's leading pinhole camera experts, as saying.
Pinhole cameras typically evoke an idyllic childhood pastime: matchboxes, a needle, sunny days, and curiosity.
The college is offering a selection of one-day classes including figurative drawing, Adobe Indesign CS5, Quark Express, pinhole photography and ceramics.
The Centre for Life in Newcastle is giving away 100 pinhole cameras made from drinks cans and tape to individuals, companies or organisations who will select a location and subject.
Yesterday, ScienceFest manager Marissa Buckingham climbed Grey's Monument in Newcastle to position her pinhole camera.
31 -- BGS Global Hospitals, Bangalore, announced the successful outcome for an aged osteoporosis patient using innovative pinhole spine surgery.