DeJur Light Meter
In 1945, when DeJur hired Marlin Fogle as the chief engineer, he invented a meter whose copyright was owned by Fogle himself. In spite of Jack Kuscher, the VP in charge of engineering, trying to get hold of the copyright in 1946 when Fogle resigned, he was unsuccessful and gave up the claim therefore confirming Fogle to be its inventor even though the rights were owned by DeJur. Fogle also had the support of the Federal Court as there was nothing mentioned in his employment contract about his copyrights automatically becoming the property of DeJur just because he worked for them. The court turned down DeJur’s plea in spite of the company insisting that it was to be understood even if not mentioned in the contract.
Initially, the deal was that DeJur would pay Fogle 7¢ for the first five years for every meter they sold. But after they lost the court appeal they had to pay Fogle for 17 years which was the lifespan of the patent and also much longer than its production.
This meter is unique and referred to as “dual” because of it being incident as well as reflected and could be switched between either at just the press of a button. Since most of the meters back then comprised of incident attachments only, this meter did stand out as a one-of-a –kind because of its built-in incident mask.