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2. Opaque projector - Wikipedia

   en.wikipedia.org/wiki/Opaque_projector

   Opaque projector. An episcope which was used in a University of Cambridge lecture hall in the late 1800s. The opaque projector, or episcope is a device which displays opaque materials by shining a bright lamp onto the object from above. The episcope must be distinguished from the diascope, which is a projector used for projecting images of ...

3. Beam projector - Wikipedia

   en.wikipedia.org/wiki/Beam_projector

   Beam projector. A beam projector is a lenseless stage lighting instrument with very little beam spread. [1] It uses two reflectors. The primary reflector is a parabolic reflector and the secondary reflector is a spherical reflector. The parabolic reflector organizes the light into nearly parallel beams, and the spherical reflector is placed in ...

4. Handheld projector - Wikipedia

   en.wikipedia.org/wiki/Handheld_projector

   A handheld projector (also known as a pocket projector, mobile projector, pico projector or mini beamer) is an image projector in a handheld device. It was developed as a computer display device for compact portable devices such as mobile phones, personal digital assistants, and digital cameras, which have sufficient storage capacity to handle ...

5. Projection booth - Wikipedia

   en.wikipedia.org/wiki/Projection_booth

   Projection booth. A projection booth ( US English ), projection box ( British English) or Bio box ( Australian English) is a room or enclosure for the machinery required for the display of movies on a reflective screen, located high on the back wall of the presentation space. It is common in a movie theater .

6. Display resolution standards - Wikipedia

   en.wikipedia.org/wiki/Display_resolution_standards

   A display resolution standard is a commonly used width and height dimension (display resolution) of an electronic visual display device, measured in pixels. This information is used for electronic devices such as a computer monitor. Certain combinations of width and height are standardized (e.g. by VESA) and typically given a name and an ...

7. Dirty Projectors (album) - Wikipedia

   en.wikipedia.org/wiki/Dirty_Projectors_(album)

   Released: September 22, 2016. "Little Bubble". Released: January 5, 2017. "Up in Hudson". Released: January 18, 2017. "Cool Your Heart". Released: February 7, 2017. Dirty Projectors is the seventh studio album by American experimental rock group Dirty Projectors, which was released on Domino Records on February 21, 2017.