Apollo APO16000 Overhead Projector User Guide
- June 3, 2024
- APOLLO
Table of Contents
Apollo APO16000 Overhead Projector
Specifications
- Brand: Apollo
- Item Dimensions: 16 x 12 x 16 inches
- Mounting Type : Tabletop Mount
- Brightness Rating: 2000 Lumen
- Color: Grey
What’s in the box?
- Overhead Projector
Descriptions
Similar to a film or slide projector, the Apollo overhead projector (often abbreviated as OHP) uses light to project an enlarged image on a screen, allowing a large audience to view a small document or picture.
The picture to be projected is either printed or handwritten or drawn on a page-sized sheet of transparent plastic film, sometimes known as “foils” or “transparencies,” which is the image source for the Apollo overhead projector.
These are put on the projector’s glass platen, which is above and below by a projecting mirror and lens assembly (hence, “overhead”). Before video projectors became common, they were extensively employed in both business and education.
Features
Condenser
The optical condenser, which illuminates the transparency, plays a key function since the focusing lens, which is typically less than 10 cm [3.9 in] in diameter, is much smaller than the transparency.
A Fresnel lens is used since this necessitates a big optical lens (at least the size of the transparency), which may also be of poor optical quality (because the sharpness of the image is independent of it).
Focus adjustment
In order to modify the object distance (optical separation between the slide and the lens) and focus at the desired image distance, overhead projectors typically have a manual focusing mechanism that rises and lowers the position of the focusing lens (including the folding mirror) (distance to the projection screen) assuming that the focusing lens’s fixed focal length. Various projection distances are made possible by this.
Illuminating factor
Compared to a contemporary LCD or DLP video projector, the bulb technology of an overhead projector is often quite straightforward. The majority of overhead lights use extremely powerful halogen lamps that can draw up to 750 or 1000 watts. [3] Due to the heat produced, a high-flow blower is necessary to prevent the bulb from melting. This blower is frequently on a timer that keeps it running for some time after the light is turned off.
Use in education
Prior to the development of computer-based projection, overhead projectors were commonly utilized in business and education. For schools, an accessible, affordable interactive environment is made possible by the overhead projector. On plastic sheets that have been pre-printed with instructional materials, teachers can write directly with a non-permanent, washable color marking pen. Instead, then having materials written by hand before each session, the transparency can be pre-printed and utilized repeatedly, saving time.
FAQ’s
What rules apply while utilizing an overhead projector?****
If there are too many people between the overhead projector and the screen, a
shadow of the presenter’s body will appear on the screen. Instead, stand to
one side of the overhead projector while facing the audience.
· Topics should be revealed one at a time.
· Draw attention to the topic being discussed.
· Avoid being distracted.
How should an overhead projector be stored?****
Keep your projector somewhere cold and dry. When not in use, keep the shipping box in a safe, secure location. The best way to pack your projector should you ever need to ship it is in the original box with the included packaging materials.
What constitutes an overhead projectors OHP key components?****
In the past, overhead projectors were commonplace in boardrooms, conference halls, and classrooms. A light, a surface on which to rest a transparency or other translucent medium, and a lens assembly to focus the image and project it to a screen made up their three main components.
How do I keep the dust off of my projector?****
Projectors with Dust Guard have Hall sensors or anti-accumulation sensors in addition to dust filters. When compared to conventional sensors, a Hall sensor—which uses magnetic impulses for timing—proves impervious to dust buildup, even at levels 7X higher than those of typical sensors.
Can you use a projector every day?****
A projector can be used to watch regular, daily television. It won’t harm the projector (though it might shorten the bulb life), and it’s less expensive than most larger televisions, which could make viewing TV more enjoyable all around.
How should an overhead projector be stored?****
Keep your projector somewhere cold and dry. When not in use, keep the shipping box in a safe, secure location. The safest way to pack your projector is in the original box and packaging materials if you ever need to ship it.
What are the overhead projector’s limitations?****
Resolution of issues. The overhead projector must be placed at the ideal distance and angle for a large school to clearly see the projected images. Cost of replacement bulbs, transportation, display materials, Ineffective technology, etc.
Do projectors require upkeep?****
Little maintenance is required for your projector to continue operating at its peak level. To avoid the projector overheating because of obstructed airflow, you might need to clean the lens from time to time in addition to the air filter and air vents.
How are the innards of a projector cleaned?****
Use pressurized air to clean the projector’s inside.
Hold the can about 3 to 4 inches away from your projector and use brief bursts
of air. To target any dust you see, move the nozzle around. To completely
clear up the dust from inside your projector, keep doing this around the fan
and throughout the housing.
Projectors can they run all day?****
A projector can be used to watch regular, daily television. It won’t harm the projector (though it might shorten the bulb life), and it’s less expensive than most larger televisions, which could make viewing TV more enjoyable all around.
An overhead projector should be used when?****
As a result, its primary purpose is to display diagrams and captions, which may be created quickly and without the need for photo editing. It is significantly simpler to illustrate radiographic aspects to a broad audience on an OHP than it is on the typical X-ray viewing box since radiograph films project very effectively.
What kind of lens is employed by an overhead projector?****
A convex lens is used in overhead projectors. Concave lenses cannot produce real images that can be projected onto a screen, while convex lenses can.