"Camera" - what is it, definition of the term
«Camera» denotes an optical recording instrument that converts light from a scene into a permanent image on a light‑sensitive medium or digital sensor. The apparatus includes a lens system to focus light, a shutter to regulate exposure time, and a recording surface that preserves the captured information. Contemporary models replace chemical film with electronic sensors, allowing immediate image retrieval and storage. Such devices are employed for scientific observation, including behavioral monitoring of small mammals such as rats and mice.
Detailed information
A photographic device designed for rodent observation incorporates a lens system that focuses light onto a light‑sensitive element, converting optical information into electronic signals. The shutter regulates exposure duration, while the image processor translates sensor data into digital files.
Imaging apparatuses employed in rat and mouse studies fall into several categories. Infrared units capture activity in complete darkness, motion‑triggered models record only when movement exceeds a preset threshold, and high‑speed systems document rapid locomotion without motion blur. Each type optimizes data collection for specific behavioral experiments.
Key technical parameters include resolution, measured in pixels, which determines the level of detail visible in captured frames; frame rate, expressed in frames per second, which influences the ability to track swift movements; low‑light sensitivity, often quantified by a minimum illumination value, essential for nocturnal observation; and trigger sensitivity, defining the minimum motion required to initiate recording. Power considerations involve battery capacity or continuous mains supply, affecting deployment duration in field settings.
Typical features of rodent‑focused imaging devices:
- Adjustable focus to accommodate varying enclosure sizes.
- Built‑in infrared LEDs for illumination without disturbing subjects.
- Onboard storage with removable media for convenient data retrieval.
- Wireless connectivity enabling real‑time monitoring and remote parameter adjustment.
Integration with data management systems allows automatic file naming, timestamping, and synchronization with environmental sensors, facilitating comprehensive analysis of activity patterns.