Scope Inc., a Reston electronics company, said yesterday that Lexicon Corp., a Fort Lauderdale, Fla., computer company, had improved the terms of its $5-a-share tender offer for Scope stock.

Scope President Edward C. Driese said he could not reveal how much of an improvement had been proposed. However, he said it brought the Lexicon offer closer to the $5.40 to $5.50 Lexicon previously had paid for two blocks of Scope stock. Driese said recently that Scope valued its assets at $5.41 a share. The $5 offer was called "inadequate and unfair."

Lexicon is attempting to buy 415,000 shares of Scope, which specializes in the application of computer and signal-processing technology for industry and defense. The 415,000 shares, when added to Lexicon's present holdings of 27 percent, or 323,165 shares, would give Lexicon 51 percent of Scope stock.

Scope Chairman William C. Schaub urged stockholders in a letter yesterday not to tender their shares by the June 12 date, so that Scope management "will be in a better position to negotiate a more favorable offer."

Driese said that key Scope employes were exploring the possibility of a leveraged buyout of Scope's stock.

Lexicon develops, makes and markets microcomputer data communications products. The rapidly growing company reported net income of $385,000 on sales of $3.7 million for fiscal 1984. Scope had profits of $242,000 on revenue of $14.2 million for 1984. Lexicon Corp. Improves Terms Of Scope Offer By Stan Hinden Washington Post Staff Writer

Scope Inc., a Reston electronics company, said yesterday that Lexicon Corp., a Fort Lauderdale, Fla., computer company, had improved the terms of its $5-a-share tender offer for Scope stock.

Scope President Edward C. Driese said he could not reveal how much of an improvement had been proposed. However, he said it brought the Lexicon offer closer to the $5.40 to $5.50 Lexicon previously had paid for two blocks of Scope stock. Driese said recently that Scope valued its assets at $5.41 a share. The $5 offer was called "inadequate and unfair."

Lexicon is attempting to buy 415,000 shares of Scope, which specializes in the application of computer and signal-processing technology for industry and defense. The 415,000 shares, when added to Lexicon's present holdings of 27 percent, or 323,165 shares, would give Lexicon 51 percent of Scope stock.

Scope Chairman William C. Schaub urged stockholders in a letter yesterday not to tender their shares by the June 12 date, so that Scope management "will be in a better position to negotiate a more favorable offer."

Driese said that key Scope employes were exploring the possibility of a leveraged buyout of Scope's stock.

Lexicon develops, makes and markets microcomputer data communications products. The rapidly growing company reported net income of $385,000 on sales of $3.7 million for fiscal 1984. Scope had profits of $242,000 on revenue of $14.2 million for 1984.