|Central District Dental Society|
|- Red LED Darkroom Safelights -
- Discover a less expensive source -
Red LED Christmas Lights are available at many local stores during the Holiday Season.
One of many different online sources is
cost is $15 plus shipping.
these lights (above) to the $170 - Kodak LED Safelight:
KODAK LED Safelight
Designed to replace conventional filtered incandescent safelights, it is the latest in lighting technology and offers more efficient darkroom light so you can see better and work more comfortably.
It's also easy to install: just screw it into a standard light bulb socket and you're ready to get to work.
KODAK Safelight Lamps
The latest in lighting technology
The Kodak LED safelight is a bright, energy efficient lighting solution that provides
twice as much visible light as conventional systems without compromising image
quality. The Kodak LED safelight will deliver high-intensity illumination over your
work area while providing safe handling conditions for dental films, including
400-speed panoramic and low dosage F-speed intraoral films.
Energy efficient and maintenance free
The Kodak LEDsafelight is designed to screw into a standard light socket, so
installation is quick and simple. With a rated life of 100,000 hours, it will provide
years of dependable service. The lamp is comprised of 20 light-emitting diodes
(LED), which transmit a pure red light at the lowest spectral sensitivity of dental
x-ray films. You can see better without risk of losing radiographic quality.
The safelight is energy efficient, using 1/10th the power of a standard
• No filters to replace
• No bulbs to replace
• Extremely low heat generation
• No more fogged film from faded or damaged safelight filters
• Three-year warranty
Illustration of the increased effectiveness
of the new Kodak LED safelight.
• Visible light at 48 in
• Traditional 15-watt bulb with a
GBX-2 filter: 165 mlx
• Kodak LED safelight: 320 mlx
• Twice as much visible light with the
Kodak LED safelight
Rated life 100,000 hours; warranted for three years
LED Emitters 20
Wavelength 660 nm peak
Viewing Angle Wide
Fixture Standard light bulb socket
Luminous intensity 320 mlx
Power 10 mA (one-tenth power draw of a bulb and filter)
Heat displacement Extremely low
Approvals UL Approved
Catalog Number 852 6444
Available for purchase:
Patterson Item #: 313-9003 Description: led safelight Manufacturer: EASTMAN KODAK CO Mfg Item#: 852-6444
1 @ 168.50 / EA
Important Facts About Safelights
No safelight provides completely safe exposure for an indefinite period of time.
Safelight filters are designed for specific types of paper and film.
Safelight filters fade with use.
Poor safelight conditions can produce a loss in photographic quality before actual fogging is visible.
Many photographic materials require handling in TOTAL darkness.
Therefore, you should
In photography, the term "safelight" describes darkroom illumination that does not cause a visible change to light-sensitive material when it is correctly handled and processed.
The word "safe" is relative. Most sensitized materials will be affected if you expose them to safelight illumination for an extended period of time. Because photographic materials vary in speed and sensitivity to different colors of light, the recommended bulb wattages and colors of safelight filters also vary. Safelight illumination will fog color films and papers; color print and transparency materials; most panchromatic black-and-white films (films that are sensitive to blue, green, and red light); and high-speed infrared films. You must handle these materials in total darkness. Ideally, safelight filters should transmit only light that is outside the color-sensitivity (wavelength) range of the photographic materials they're recommended for. Safelight filters recommended by Kodak provide maximum transmission of those colors that the paper or film emulsion has relatively low sensitivity to. However, the color sensitivity of most emulsions does not end abruptly at a par ticular wavelength in the spectrum--most emulsions are somewhat sensitive to colors outside the intended range. This means that most papers and films have some sensitivity even to the colors of light transmitted by the recommended safelight filters. Therefore, always minimize the exposure of photographic materials to safelight illumination. A safelight has three basic parts: The lamp housing. This holds the bulb and the filter, and keeps the white light emitted by the bulb from escaping.
The safelight filter. This absorbs light of some colors and transmits light of others to varying degrees.
The bulb. The recommended wattage is determined by the sensitivity of a particular material, the transmission characteristics of the filter, the type of illumination the lamp housing provides -- spot (direct) vs general (indirect) -- and the distance between the safelight and the area where you handle the material.
KODAK Safelight Lamps contains descriptions of a number of KODAK Safelight Lamps and appropriate uses for the different types. The Safelight Recommendations table lists typical sensitized products and the safelight filters recommended for use with them. The table also shows the bulb-wattage recommendation for each application. See the paper or film package for safelight recommendations for specific materials.
Be sure to follow the recommendations for both the wattage of the bulb and the minimum distance between the lamp and the photographic material.
The "safest" color safelight filter for a particular material is not always the recommended one. For example, a red safelight filter often has less effect on photographic papers than the amber filter listed in the table. However, most workers find that they can judge print density or perform other functions better under an amber light. (So, although it is a slight compromise in protecting the paper from fogging, an amber filter improves working conditions.) The apparent color of a safelight filter is only a partial indication of its transmission characteristics. Colored bulbs or other improvised safelights may appear to be the right color, but they may actually emit light (or other forms of radiant energy) that will fog a photographic emulsion. KODAK Safelight Filters are made to precise light-transmission and absorption standards that relate to the spectral sensitivities of photographic materials.
Safelight filters gradually fade with use. This means that they transmit more and more light of the colors that they absorb when they are new. You should plan to periodically change safelight filters. For example, if you use safelight lamps for 8 to 12 hours a day, you may need to change the filters every three months. Bulbs eventually blacken and produce less light. To keep the illumination level consistent, periodically change bulbs. Noting the replacement dates on a sticker on the safelight housing will help you keep track of bulb and filter changes. We recommend that you change bulbs before running safelight tests. How Safe Is Your Safelight? Menu