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TECH LIBRARY

CCFL - ESTIMATING CCFL LUMENS

Chart giving an estimate of the total lumens (lm) for various CCFL diameters and lengths.

Document Link: TB-1008

CCFL - HISTORY & OVERVIEW OF CCFLs

An understanding of the history and development of a technology can be a tremendous aid in properly utilizing it for a given application. A brief history and overview is given for the CCFL (Cold Cathode Fluorescent Lamp), also referred to as SMFL (Sub-Miniature Fluorescent Lamp). A description of CCFL electrical discharge lighting devices with typical construction and function is given.

Document Link: AI-002

CCFL - MINIMIZING CCFL/RFI

An overview of how to minimize RFI output when considering the use of CCFLs and their associated inverters.

Document Link: TB-1015

CCFL - REPLACEMENT OF LAMP SYSTEM FOR THE MICROTEK 9800XL SCANMAKER

Detailed instructions on how to replace the lighting element of the Microtek 9800XL with JKL CCFL assembly part number BF20325-24B/ASSY/01

Document Link: TB-1016

CCFL - TECHNICAL CONCERNS

Cold Cathode Fluorescent Lamps (CCFLs) 3.0mm - 6.5mm in diameter are commonly used in a variety of backlight configurations for LCD displays; as light sources for scanners and CCD cameras. CCFLs exhibit unique electrical, photometric, and environmental characteristics, which present a challenge for designers. Aspects of diameter and length versus voltage, current and luminance are examined. A basic CCFL drive inverter configuration is given with an examination of a vacuum thermocouple current measurement scheme.

Document Link: AI-001

CCFL - TEMPERATURE CHARACTERISTICS

The rated light output of CCFL lamps for design purposes is usually specified at 25°C. The actual output of a given CCFL lamp is, however, significantly affected by the ambient temperature in which it operates. An understanding of the temperature characteristics of CCFL lamps is therefore essential to the correct design of a lamp for a particular application.

Document Link: TB-1014

CCFL - UNDERSTANDING CCFLs

An examination of the Cold Cathode Fluorescent Lamp (CCFL) utilized extensively as the light source for LCD displays such as used in laptop computers and other portable devices is reviewed. Discussion includes electrical dynamics in relation to physical dimensions and temperature of the lamps. A general overview of the efficiency of the lamp and inverter system is given. Depletion of mercury from the discharge column influencing light output is attributed to DC operation and temperature. Included is an overview of low-pressure CCFL mercury lamp construction and physics. Normal failure mode is attributed to phosphor degradation.

Document Link: AI-007

CCFL - UV-C ULTRAVIOLET CCFLs

A brief overview of the UV-C range of ultraviolet CCFLs

Document Link: TB-1005

CCFL - WHAT ARE ULTRAVIOLET CCFLs?

A brief overview and diagram of ultraviolet CCFLs

Document Link: TB-1004

CCFL - YOU WANT TO PUT IT WHERE? Spatial Design Concerns

A brief overview of spatial design concerns for applications using CCFLs

Document Link: TB-1003

Incandescent - THRU-BOARD/SURFACE MOUNT LAMPS

Inserted through or atop PC-board, Thru-board and Surface Mount Lamps are well suited for a variety of applications from air controls and instrument clusters requiring a high level of light output to small control switches requiring a small compact light source.

Document Link: TB-1011

Incandescent - WWT LAMPS

The WWT series of lamps are integral assemblies consisting of a lamp, base and contact

terminals.  The lamp used in the assembly is a high vacuum wire terminal

type.

Document Link: TB-1012

Inverters - INSTALLATION & WIRING GUIDELINES FOR DC/AC INVERTERS

The installation of JKL's DC/AC inverters is relatively simple, but a few precautions observed during the installation and wiring of the inverters to CCFL's will help to insure a smooth integration into your application. Wiring diagrams for the most common DC/AC inverters are included.

Document Link: AI-004

LED - REPLACING INCANDESCENT SUBMINIATURE LAMPS WITH LED EQUIVALENTS

Based LEDs are suitable for new designs but are also suitable for replacing incandescent lamps in existing designs without having to change sockets or mounting schemes. This document includes a list of several popular incandescent subminiature lamps and their LED based lamp equivalents. Care should be taken in choosing the correct LED based lamp to make sure that the LED will illuminate the area the same as the incandescent lamp by having equal viewing angle of the light and intensity.

Document Link: AI-008

Optics - GLOSSARY OF LIGHTING AND ELECTRONIC TERMS

This glossary of lighting and electronic terms is presented as an aide to the user of JKL's product line of lamps and lighting accessories. Many of the specialized terms used in JKL's applications information, specifications and literature will be defined.

Document Link: AI-003

Optics - THE ELECTROMAGNETIC SPECTRUM

Chart showing a portion of the electromagnetic spectrum & associated wavelengths of light

Document Link: TB-1006

Optics - VISIBLE LIGHT SPECTRUM AND THE HUMAN EYE

Charts showing the response rate for the human eye in bright light and in dim light.

Document Link: TB-1013