多级标题：tungsten lamp wavelength range
1. Giới thiệu
– Briefly introduce the tungsten lamp and its importance in various applications.
– Mention the concept of wavelength and its significance in understanding the behavior of light.
2. The spectrum of tungsten lamp
2.1 Visible light range
– Provide an overview of the visible light range and its significance in human perception.
– Mention that tungsten lamp emits light in the visible light range.
2.2 Infrared range
– Explain the concept of infrared light and its applications in various fields.
– Discuss how tungsten lamp emits infrared light.
2.3 Ultraviolet range
– Discuss the harmful effects of ultraviolet light and its applications in various fields.
– Mention that tungsten lamp emits a small amount of ultraviolet light.
3. Wavelength range of tungsten lamp
3.1 Visible light wavelength range
– Explain that the visible light wavelength range is approximately 400 to 700 nanometers (nm).
– Discuss how tungsten lamp’s spectrum peaks in the visible light range.
3.2 Infrared wavelength range
– Discuss that the infrared wavelength range extends beyond the visible light range, generally starting from 700 nm.
– Mention that tungsten lamp’s spectrum extends into the infrared range.
3.3 Ultraviolet wavelength range
– Explain that ultraviolet light has shorter wavelengths than visible light, ranging from 10 nm to 400 nm.
– Discuss that tungsten lamp emits a small amount of ultraviolet light in the lower end of the ultraviolet range.
4. Applications of tungsten lamp wavelength range
– Discuss the various applications of tungsten lamp’s wavelength range in different fields such as photography, spectroscopy, and horticulture.
– Highlight the importance of tungsten lamp in providing light within the visible spectrum for human visual perception.
– Mention the use of tungsten lamp’s infrared and ultraviolet emissions in specific applications, such as infrared heating and ultraviolet sterilization.
5. Phần kết luận
– Summarize the importance of understanding the wavelength range of tungsten lamp for its various applications.
– Emphasize the role of tungsten lamp in providing light within the visible spectrum and its additional emissions in the infrared and ultraviolet ranges.
– Conclude by acknowledging the ongoing research and development in tungsten lamp technology to enhance its performance and widen its wavelength range.
