For some half a century, the TV has gone through an amazing evolutionary path: from huge lamp boxes with a small black and white screen and a vague image to elegant thin panels of impressive sizes that can transmit not only the colors of the world, but also its volume.
Television technology is constantly being improved. More recently, the emergence of 3D films in cinemas has become a real breakthrough. They impressed the audience with grandeur and realism. The film industry made huge profits by stamping more and more new paintings that gathered full halls. And today, 3D content can be watched, without leaving home, on modern TVs using special glasses.
3D Glasses Sony TDG-BT500A
Sony is famous for its ability to quickly master advanced technologies, create thoughtful and reliable products with guaranteed quality on their basis. The 3D sphere was no exception. 3D glasses Sony TDG-BT500A are designed for branded LCD-TVs with support for active 3D-technology.
At the moment, the most popular are two methods of transmitting surround images using a TV: active and passive. Sony has chosen the first option for its devices. To understand the advantages and disadvantages of Sony's active 3D glasses, you need to understand their operating principle.
An active 3D TV alternately and very quickly transmits separate frames to each eye, which are slightly offset in relation to each other. Due to this effect, the brain perceives the image volume. Sony 3D glasses are made using liquid crystals, which act as a shutter, a curtain for the eyes. They are synchronized with the TV and at the right time darken the left or right lens alternately. That is, the human eye sees strictly defined frames connecting into a realistic deep picture.
In passive 3D technology, the volume is also transmitted due to two displaced frames, each of which is designed for different eyes. But both frames have different polarization and are enclosed in one screen using horizontal alternating lines. Polarizing glasses allow the eyes to see only certain lines that are collected in the desired frame and create a 3D effect.
The main drawback of passive technology is the loss of image quality by half, as the eyes see only half of the vertical lines. Therefore, people who want to get the image as close to reality as possible, no doubt choose a technique with active 3D. The costs more than pay off the pleasure of watching movies, sports matches, music videos in the highest quality.
Main characteristics
- Technology: LCD shutter, active.
- Compatible devices: Sony KDL-55W905A, Sony KDL-40W905A, and Sony KDL-46W905A TVs.
- Year of production of models of compatible TVs: 2013.
- Type of connection with the TV: Bluetooth.
- Power: one CR2025 type battery.
- Operating time at full charge - 100 hours.
- Width / depth / height: 147 × 170 × 46 mm.
- Points weight: 36 g.
Advantages of 3D glasses Sony TDG-BT500A
- They guarantee high image quality, support Full HD.
- They are famous for their trouble-free operation, they are quickly and easily connected to the TV via a radio signal (Bluetooth).
- Sony 3D glasses can be worn over ordinary diopter glasses without loss of quality.
- Comfortable, lightweight, do not tire your eyes while watching movies for a long time.
- Ergonomic: the silicone fit does not put pressure on the bridge of the nose, the arms are not attached firmly, so the glasses are equally comfortable for people with different shapes and height of the ears.
- You can watch TV in any position, Sony 3D-glasses provide excellent picture from different viewing angles.
- They support SimulView game technology for PlayStation consoles: two people, wearing glasses, can play on the same TV without seeing each other's screens.
disadvantages
The main disadvantage of Sony’s 3D glasses is their high cost, but it is true that a really high-quality thing is worth the money. Buying branded glasses that have been tested by time and thousands of consumers, the consumer receives guaranteed reliability, durability and access to the magical world of 3D content with maximum resolution.
Another minus of the glasses is called too large side gaps, through which a lot of light falls on the eyes, which interferes with watching TV during the day. But, as a rule, the eyes quickly adapt to such an inconvenience and cease to notice it, especially when watching an exciting film that is difficult to distinguish from reality.